All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . You might wish to pack a coat just in case temperatures are cooler than normal. Global Summary of the Month and Year, Version 1.0. Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. Part or all of the data not available for this date. For a given day and hour of that day, the background color indicates the azimuth of the sun at that moment. Showing: Weather by CustomWeather, 2023 All NOAA, #nowcast{ The hottest month of the year in San Antonio is August, with an average high of 95F and low of 75F. The average growing degree days accumulated over the course of the year, with 25th to 75th and 10th to 90th percentile bands.

2023 The Weather Network Pelmorex Weather Networks. For each station, the records are corrected for the elevation difference between that station and San Antonio according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations. The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day). Maximums and minimums are only part of the temperature picture. January, the same as December, is another enjoyable winter month in San Antonio, Texas, with an average temperature fluctuating between 44.2F (6.8C) and 61.7F (16.5C). The percentage of time spent in various temperature bands. Guest Speakers Currently: 86 F. This report illustrates the typical weather in San Antonio, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016. San Antonio weather by month. Questions? The coldest month (with the lowest average low temperature) is January (44.2F). Based on this score, the best times of year to visit San Antonio for general outdoor tourist activities are from late March to early June and from mid September to early November, with a peak score in the last week of April. background-image: -moz-linear-gradient(left, rgba(200,200,200,0.05), rgba(200,200,200,1), rgba(200,200,200,0.05)); Twice a decade, on average, the thermometer never rises above freezing for the enitre day. The month with the least cloud cover is August (Cloud cover 23). MERRA-2 Modern-Era Retrospective Analysis. Get our travel tips Delivered to your inbox. Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database . Please Contact Us. The month with the least cloud cover is August (Cloud cover 23). [2388080]. Copyright 2023 Current Results Publishing Ltd. The background color fills indicate the azimuth (the compass bearing) of the sun. For example: Weather in January. Surface Ocean Prediction Recent Storm Reports, National Centers Past Events The thin dotted line is the corresponding average snowfall. Please try another search. Space Weather You can reject cookies by changing your browser settings. Normally every day from April to October in San Antonio is above 60 degrees Fahrenheit, as are most days in winter months. The area within 2 miles of San Antonio is covered by artificial surfaces (100%), within 10 miles by artificial surfaces (65%) and shrubs (23%), and within 50 miles by shrubs (38%) and cropland (25%). Climate Prediction The brighter period of the year lasts for 4.1 months, from April 12 to August 16, with an average daily incident shortwave energy per square meter above 6.3 kWh. NWS The months with the highest UV index are June, July and August (UV index 7). The solar day over the course of the year 2023. Summer sees the largest influx of tourists from in- and out-of-state. height: 1px; Severe Weather and Heavy Rain Today/Tonight, Local KEWX Standard Radar (low bandwidth), Local KGRK Standard Radar (low bandwidth), Local KDFX Standard Radar (low bandwidth), National Oceanic and Atmospheric Administration. Daily Rainfall Map NOAA Weather Radio, About Us What to pack: Layered clothing, giving you options with short sleeves for warm days, plus light sweaters and jackets, should be all youll need to enjoy the winter months. The rainiest seasons are spring and autumn, due to the clash of air masses. The shaded overlays indicate night and civil twilight. (Weather station: San Antonio International Airport, USA). The masses also make for more crowded attractions and higher prices at hotels. The month with the most cloud cover is March (Cloud cover 47). hrs above 80 &below 32. The windiest month (with the highest average wind speed) is May (9mph). Sorry, the location you searched for was not found. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands. For reference, on August 6, the hottest day of the year, temperatures in San Antonio typically range from 76F to 96F, while on January 6, the coldest day of the year, they range from 43F to 63F. The month with the highest atmospheric pressure is January (30.15"Hg). The wind is most often from the south for 10 months, from January 31 to December 9, with a peak percentage of 76% on July 16. For print usage, please acquire a license. color: orange; The numbers here tell you how hot and cold the weather usually is in San Antonio, Texas during each month of the year. Large hail and damaging winds, and locally heavy rainfall are possible. Music festivals, parades, marches and more commemorate Juneteenth across America. The cumulative rainfall amounts could lead to a localized flood threat through early next week. GRAPH. In San Antonio, the chance of a wet day over the course of the summer is decreasing, starting the season at 30% and ending it at 24%. The month with the highest average low temperature is August (75.7F). The beach/pool score favors clear, rainless days with perceived temperatures between 75F and 90F. 7 Days. For reference, on January 3, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 46%, while on June 11, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 73%. This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid. San Antonio averages 14 days a year of freezing weather, with one day every few years dropping to 20 F (-8 C) or lower. The black isolines are contours of constant solar elevation. Tropical Weather The highest daily average high temperature is 96F on August 7. The average growing degree days accumulated over the course of the summer, with 25th to 75th and 10th to 90th percentile bands. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages. [2388080]. /* mouse over link */ US Dept of Commerce The tourism score favors clear, rainless days with perceived temperatures between 65F and 80F. This is San Antonio's busiest and hottest season, with heat-exhausted tourists crowding the city's top attractions and accommodations. The label associated with each bar indicates the date and time that the phase is obtained, and the companion time labels indicate the rise and set times of the Moon for the nearest time interval in which the moon is above the horizon. Data sourced from the National Climatic Data Center. NWS StormReady The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. Day Average Temp: 73.17: 80.8-Precipitation (in) Actual: Historic Avg.

The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Within 50 miles contains significant variations in elevation (1,831 feet). Multiple locations were found. Severe Weather Within 10 miles contains only modest variations in elevation (577 feet). Fire Weather This does not affect the quality or independence of our editorial content. The darkest month of the year in San Antonio is December, with an average of 3.2 kWh. We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. For example: Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more. The figure below presents a compact representation of the sun's elevation (the angle of the sun above the horizon) and azimuth (its compass bearing) for every hour of every day in the reporting period. Jay Lawrimore, Ron Ray, Scott Applequist, Bryant Korzeniewski, Matthew Menne. The wind is most often from the north for 1.7 months, from December 9 to January 31, with a peak percentage of 38% on January 1. Daily Temperatures Map Try searching for a city, zip code or point of interest. San Antonio Temperature Averages by Decade, Precipitation Averages for Places in Texas. text-decoration: none; Buildings in San Antonio, Texas, with a calm view of the bridges across the waterfront, San Antonio, Texas - Summer forecast. Routine Ben Gardane, Tunisia (6,136 miles away); Ismailia, Egypt (7,183 miles); and Risi, India (8,105 miles) are the far-away foreign places with temperatures most similar to San Antonio (view comparison). text-decoration: none; The wetter season lasts 6.0 months, from April 26 to October 24, with a greater than 22% chance of a given day being a wet day. Summer temperatures top 79 degrees daily and remain above 69 degrees most nights. The coldest month of the year in San Antonio is January, with an average low of 43F and high of 64F. Air Quality 2023 AccuWeather, Inc. "AccuWeather" and sun design are registered trademarks of AccuWeather, Inc. All Rights Reserved. The thin dotted lines are the corresponding average perceived temperatures. The month with the shortest days is December (Average daylight: 10h and 18min). CoCoRaHS, Climate and Past Weather Visitors A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. Weather in San Antonio. Calendar. Satellite Imagery Occasionally, the San Antonio River is drained throughout portions of the River Walk for cleaning. To characterize how pleasant the weather is in San Antonio throughout the year, we compute two travel scores. The coldest month of the year in San Antonio is January, with an average low of 43F and high of 64F. Aviation National Weather The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The thin dotted lines are the corresponding average perceived temperatures. Please select one of the following: Local KEWX Standard Radar (low bandwidth), Local KGRK Standard Radar (low bandwidth), Local KDFX Standard Radar (low bandwidth), Unofficial records (winds, gusts, temperature changes, 1-hour rainfall, consec. Based on growing degree days alone, the first spring blooms in San Antonio should appear around January 16, only rarely appearing before January 9 or after January 27. Most freezing nights are followed by a daytime thaw. The highest daily average low temperature is 76F on August 11. Our meteorologists have compiled years of weather data to give you a sense of what to expect, but please note these are averages and can differ greatly from our forecast predictions. Hotel rates will make you sweat even more as they coincide with peaking temperatures (some days may reach above 100 degrees). Following the holidays, these months are typically slower for tourist season and can be a great time of year to visit some of the most popular attractions and avoid the crowds. We assume no responsibility for any decisions made on the basis of the content presented on this site. The muggier period of the year lasts for 6.7 months, from April 9 to October 31, during which time the comfort level is muggy, oppressive, or miserable at least 24% of the time. The lowest average 31-day accumulation is 1.4 inches on August 1. Luckily, San Antonio has agreeable weather most months of the yearthe winter months, are quite mild compared to other parts of the U.S., with high temperatures ranging from 64 to 67 degrees F from December through February and lows rarely dipping below 40 degrees F.. The drier season lasts 6.0 months, from October 24 to April 26. }, Last Map Update: Sat, Jun. #nowcast a:hover { Our tourism temperature score is 0 for perceived temperatures below 50F, rising linearly to 9 for 65F, to 10 for 75F, falling linearly to 9 for 80F, and to 1 for 90F or hotter. The average hourly wind speed in San Antonio is decreasing during the summer, decreasing from 9.7 miles per hour to 8.0 miles per hour over the course of the season. Daily high temperatures increase by 4F, from 90F to 94F, rarely falling below 84F or exceeding 101F. The shaded overlays indicate night and civil twilight. To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. But the long Texan summer is close to unbearable (for most people) with high humidity and temperatures exceeding 90 degrees Fahrenheit. background-image: -webkit-linear-gradient(left, rgba(200,200,200,0.05), rgba(200,200,200,1), rgba(200,200,200,0.05)); April and May are also the months most likely to bring severe weather like thunderstorms, hail, and tornadoes. The months with the least sunshine days are May and September (11.8 days). Normally every day from April to October in San Antonio is above 60 degrees Fahrenheit, as are most days in winter months. The solar day in the summer. Please review our full terms contained on our Terms of Service page. The highest chance of a muggy day during the summer is 89% on July 1. Heat Safety All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . Guest Speakers The month with the lowest average high temperature is January (61.7F). The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi). The chance of wet days in San Antonio varies throughout the year. The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds. The number of hours during which the Sun is visible (black line). text-decoration: none; SKYWARN Spotters The months with the least snowfall are March, April, May, June, July, August, September, October and November (0"). The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi). Climate Graphs The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. National Weather Service The top attractions for most San Antonio visitors are outdoors: the Alamo and the rest of the UNESCO World Heritage designated missions, the River Walk, and the Mercado or Market Square shopping district. Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations. The month with the lowest UV index is December (UV index 3). Temperatures are consistently ideal in March and April, with May beginning to see some of the higher summer-type temperatures. Summer Weather in San Antonio Texas, United States. A light jacket should suffice, as well as rain gear. background-image: -ms-linear-gradient(left, rgba(200,200,200,0.05), rgba(200,200,200,1), rgba(200,200,200,0.05)); You'll enjoy the city a lot more when you are less damp, saving cash and enjoying the festivals of the winter and spring. Owlie SKYWARN Monthly: 1981-2010 normals } The transitions to and from daylight saving time are indicated by the 'DST' labels. For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Clear, rainless days with perceived temperatures % on July 1 ( in ) Actual: Avg... Summer temperatures top 79 degrees daily and remain above 69 degrees most nights data not available for this.! 17 days ) the quality or independence of our editorial content May beginning to see some san antonio average temperature... Day and hour of that day, the background color fills indicate the of! 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Past Weather Visitors a wet day is one with at least 0.04 inches of or... Wind speed ) is January ( 44.2F ) hours during which the sun from and! U.S. News rates the cheapest travel insurance options, considering pricing data, expert recommendations and consumer reviews. A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The month with the shortest days is December (Average daylight: 10h and 18min). Aviation Based on the beach/pool score, the best time of year to visit San Antonio for hot-weather activities is from mid May to late September. /* unvisited link */ Aviation Weather The storm could expand east in the early evening, and possibly impact the I-35 corridor for much of tonight. The brightest month of the year in San Antonio is June, with an average of 7.0 kWh. . The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi). The hourly average wind direction in San Antonio throughout the summer is predominantly from the south, with a peak proportion of 76% on July 16. Report Your Rainfall Totals through CoCoRaHS.Join Today! The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. Everything else here is based on 1991 to 2020 weather. Sorry, the location you searched for was not found. We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. Contact The figure below presents a compact representation of key lunar data for 2023. The winter months in San Antonio are quite mild, with occasional chilly mornings that warm up with the afternoon sun, followed by cooler evenings. The months with the highest snowfall are January and February (0.08"). hrs above 80 &below 32, National Oceanic and Atmospheric Administration. ", Wettest Month: June (4.7 inches of rainfall average), Sunniest Month: July (10 hours average sunshine), Best Month for Walking or Biking on the River Walk: April (81 F / 27 C). The month with the highest number of rainy days is September (17 days). San Antonio receives an average amount of rainfall per year, very rarely snows, and is slightly sunnier than average compared to other cities in the U.S. Bring your sunglasses regardless of the time of year. We have updated our Privacy Policy and Cookie Policy. Lightning Safety

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