San Antonio
May
Weather in San Antonio for May 2025
Your guide to San Antonio weather in May - trends and predictions
In general, the average temperature in San Antonio at the beginning of May is 30.4 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 34 °F by the end of May.
Expect significant rainfall in San Antonio during May, with an average of 16 rainy days.
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15
Dry days
16
Rainy days
0
Snow days
32°/19°
Temperatures
20 km/h
Avg max wind
72 %
Avg humidity
San Antonio in May average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  30° | 2  28° | 3  28° | 4 31° | |||
| 5 31° | 6 32° | 7 33° | 8  35° | 9 32° | 10 29° | 11 30° |
| 12 30° | 13 28° | 14 32° | 15 30° | 16 28° | 17 32° | 18 34° |
| 19 33° | 20 31° | 21 30° | 22 34° | 23 35° | 24 36° | 25 36° |
| 26  35° | 27 36° | 28 32° | 29 31° | 30 34° | 31 34° |
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Temperatures trend during May in San Antonio
See the weather trend as well as the moving average line
May weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| May 1 | Partly cloudy | 30° /18° | 3.3 mm | 7 | |
| May 2 | Patchy rain possible | 28° /19° | 1.1 mm | 6 | |
| May 3 | Cloudy | 28° /19° | 0.3 mm | 6 | |
| May 4 | Patchy rain possible | 31° /20° | 5.3 mm | 7 | |
| May 5 | Patchy rain possible | 31° /21° | 2.8 mm | 7 | |
| May 6 | Patchy rain possible | 32° /21° | 16.2 mm | 7 | |
| May 7 | Patchy rain possible | 33° /20° | 1.8 mm | 7 | |
| May 8 | Moderate rain at times | 35° /22° | 3.5 mm | 8 | |
| May 9 | Moderate rain at times | 32° /20° | 10.8 mm | 7 | |
| May 10 | Patchy rain possible | 29° /19° | 6.7 mm | 7 | |
| May 11 | Patchy rain possible | 30° /19° | 2.3 mm | 7 | |
| May 12 | Moderate or heavy rain shower | 30° /20° | 9.5 mm | 7 | |
| May 13 | Moderate or heavy rain shower | 28° /19° | 43.4 mm | 6 | |
| May 14 | Moderate or heavy rain shower | 32° /18° | 2.3 mm | 7 | |
| May 15 | Moderate or heavy rain shower | 30° /19° | 10.7 mm | 7 | |
| May 16 | Moderate or heavy rain shower | 28° /19° | 14.6 mm | 6 | |
| May 17 | Patchy rain possible | 32° /20° | 0.6 mm | 7 | |
| May 18 | Partly cloudy | 34° /19° | 0 mm | 8 | |
| May 19 | Patchy rain possible | 33° /20° | 0.2 mm | 7 | |
| May 20 | Moderate or heavy rain shower | 31° /21° | 2.8 mm | 7 | |
| May 21 | Moderate or heavy rain shower | 30° /20° | 3.8 mm | 7 | |
| May 22 | Partly cloudy | 34° /20° | 0 mm | 8 | |
| May 23 | Moderate rain at times | 35° /21° | 0.9 mm | 8 | |
| May 24 | Partly cloudy | 36° /21° | 0.1 mm | 9 | |
| May 25 | Patchy rain possible | 36° /22° | 0.2 mm | 8 | |
| May 26 | Overcast | 35° /21° | 0 mm | 8 | |
| May 27 | Cloudy | 36° /21° | 2 mm | 8 | |
| May 28 | Patchy rain possible | 32° /21° | 1.2 mm | 7 | |
| May 29 | Moderate or heavy rain shower | 31° /21° | 8.8 mm | 7 | |
| May 30 | Patchy rain possible | 34° /21° | 0.2 mm | 8 | |
| May 31 | Overcast | 34° /21° | 0.5 mm | 8 | |
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Important Notice
Our weather forecast for San Antonio in May is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the San Antonio forecast closer to your planned date for the most up-to-date weather information.
San Antonio in May - FAQ
What are the expected maximum and minimum temperatures in San Antonio during May?
Expect warm days with temperatures around 32°, cooling to mild conditions of 19° after sunset. Perfect for those who enjoy warm weather.
How much rainfall should be expected in San Antonio during May?
Significant rainfall exceeding 303.2 mm is expected in San Antonio during May, occurring over more than 16 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in San Antonio during May?
The average wind speed in San Antonio during May is 20 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in San Antonio
Explore the daily rainfall trends and prepare for San Antonios May weather 💧
UV exposure in San Antonio during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
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