March weather forecastSan Antonio, TX
March
Weather in March
March brings a noticeable transition from the cool, short days of winter to the longer, warmer days of spring in San Antonio. The city starts to receive a larger amount of sunshine during the day, and the average hours of sunlight extend from 11.2 to 12 hours. However, rainfall inches also increase from 0.98in to 1.54in. March is marked by a further increase in maximum wind speed to 9.4mph (15.1km/h). Late blossoms characterize flora around the city, marking the onset of spring.Temperature
With the onset of March, San Antonio experiences a subtle temperature shift, with the average high-temperature moving from a refreshing 65.8°F (18.8°C) in February to a pleasant 72.7°F (22.6°C). In the month of March, the temperature generally rests at an average low of 54.3°F (12.4°C).Humidity
In San Antonio, the average relative humidity in March is 71%.Rainfall
In March, in San Antonio, the rain falls for 14.1 days. Throughout March, 1.54" (39mm) of precipitation is accumulated. Throughout the year, there are 144.5 rainfall days, and 22.6" (574mm) of precipitation is accumulated.Snowfall
In San Antonio, snow does not fall in March through November.Daylight
In March, the average length of the day is 12h and 1min.On the first day of the month, sunrise is at 6:58 am and sunset at 6:33 pm CST. On the last day of March, sunrise is at 7:23 am and sunset at 7:52 pm CDT.
Note: On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time lasts until Sunday, November 3. 2024, at 2:00 am; consequently, the time zone reverts from CDT to CST.
Sunshine
The average sunshine in March is 6.5h.UV index
The average daily maximum UV index in March is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: An average UV index of 5 in March transforms into this advice:
Guard yourself - Precautionary measures against sun damage are advocated. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in March
San Antonio, TX
- Average high temperature in March: 72.7°F
The warmest month (with the highest average high temperature) is August (96.6°F).
The month with the lowest average high temperature is January (61.7°F).
- Average low temperature in March: 54.3°F
The month with the highest average low temperature is August (75.7°F).
The coldest month (with the lowest average low temperature) is January (44.2°F).
Average pressure in March
San Antonio, TX
- Average pressure in March: 30.01"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in March
San Antonio, TX
- Average wind speed in March: 8.8mph
The windiest month (with the highest average wind speed) is May (9mph).
The calmest month (with the lowest average wind speed) is September (6.5mph).
Average humidity in March
San Antonio, TX
- Average humidity in March: 71%
The month with the highest relative humidity is May (73%).
The month with the lowest relative humidity is August (59%).
Average rainfall in March
San Antonio, TX
- Average rainfall in March: 1.54"
The wettest month (with the highest rainfall) is May (3.66").
The driest month (with the least rainfall) is February (0.98").
Average rainfall days in March
San Antonio, TX
- Average rainfall days in March: 14.1 days
The month with the highest number of rainy days is September (17 days).
The month with the least rainy days is January (9.1 days).
Average snowfall in March
San Antonio, TX
- Average snowfall in March: 0"
The months with the highest snowfall are January and February (0.08").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in March
San Antonio, TX
- Average snowfall days in March: 0 days
The months with the highest number of snowfall days are January and February (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in March /
Average sunshine in March
San Antonio, TX
- Average daylight in March: 12h and 0min
The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).
- Average sunshine in March: 6h and 30min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in March
San Antonio, TX
- Average sunshine days in March: 13.9 days
The month with the most sunshine days is January (20.3 days).
The months with the least sunshine days are May and September (11.8 days).
Average UV index in March
San Antonio, TX
- Average UV index in March: 5
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in March
San Antonio, TX
- Average cloud cover in March: 47
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility in March
San Antonio, TX
- Average visibility in March: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
