The climate in San Antonio during March can be summarized as warm and a little damp.
March is in the fall / autumn in San Antonio and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a comfortable 27°C (81°F), whilst at night 15°C (58°F) is normal.
Daytime temperature | 27.2°C 80.9°F |
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Nightly temperature | 14.5°C 58°F |
Average temperature | 20.8°C 69.4°F |
Daily sunshine | 8.8 hrs |
Avg rainfall | 87 mm 3.4 ins |
Rainy days | 9 days |
Sea temperature | 20.9°C 69.6°F |
Humidity | 63% |
Windspeed | 8.6kph 5 mph |
On average March is the 3rd wettest month of the year in San Antonio with around 87mm 3.4 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.
On the flip side this corresponds to an average of 8.8 hours of sunshine per day.
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in San Antonio in March 2025.
Hottest month: | January | 30.5°C 86.9°F |
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Driest month: | July | 10mm 0.4ins |
Sunniest month: | August | 9.3hrs |
Coldest month: | June | 16.1°C 61°F |
Wettest month: | January | 109mm 4.3ins |