March weather forecast
San Antonio, TX

Buildings in San Antonio, Texas, with a calm view of the bridges across the waterfront
Buildings in San Antonio, Texas, with a calm view of the bridges across the waterfront

Weather in March

The first month of the spring, March, is a pleasant month in San Antonio, Texas, with an average temperature ranging between min 54.3°F (12.4°C) and max 72.7°F (22.6°C).

Temperature

In March, the average high-temperature marginally rises from a comfortable 65.8°F (18.8°C) in February to a pleasant 72.7°F (22.6°C). In San Antonio, in March, the average low-temperature is 54.3°F (12.4°C).

Humidity

In March, the average relative humidity is 71%.

Rainfall

In San Antonio, Texas, in March, during 14.1 rainfall days, 1.54" (39mm) of precipitation is typically accumulated. Throughout the year, there are 144.5 rainfall days, and 22.6" (574mm) of precipitation is accumulated.

Snowfall

March through November are months without snowfall.

Daylight

In March, the average length of the day is 12h and 1min.
On the first day of the month, sunrise is at 6:59 am and sunset at 6:33 pm CST. On the last day of March, sunrise is at 7:24 am and sunset at 7:51 pm CDT.
Note: On Sunday, March 12. 2023, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time lasts until Sunday, November 5. 2023, at 2:00 am; consequently, the time zone reverts from CDT to CST.

Sunshine

The average sunshine in March in San Antonio is 6.5h.

UV index

The average daily maximum UV index in March in San Antonio is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: The daily maximum UV index of 5 in March interpret into the following advice:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the temperature in March in San Antonio?

In San Antonio, Texas, in March, the average high-temperature is 72.7°F (22.6°C), and the average low-temperature is 54.3°F (12.4°C).

What is the average humidity in March in San Antonio?

In San Antonio, Texas, the average relative humidity in March is 71%.

How many days does it rain in March in San Antonio?

In March, in San Antonio, the rain falls for 14.1 days. Throughout March, 1.54" (39mm) of precipitation is accumulated.

When it does not snow in San Antonio?

March through November are months without snowfall in San Antonio.

Does it snow in San Antonio in March?

In March, in San Antonio, it doesn't snow. February is the latest month when it typically snows.

How many hours of daylight does San Antonio have in March?

In San Antonio, Texas, the average day length in March is 12h and 1min.

What time are sunrise and sunset in March in San Antonio?

In March, on the first day of the month, sunrise is at 6:59 am and sunset at 6:33 pm CST. On the last day of the month, in San Antonio, sunrise is at 7:24 am and sunset at 7:51 pm CDT.

When does Daylight Saving Time (DST) start in March in San Antonio?

On Sunday, March 12. 2023, at 2:00 am, Daylight Saving Time starts in San Antonio, and the time zone changes from CST to CDT. DST ends Sunday, November 5. 2023, at 2:00 am.

How many hours of sunshine does San Antonio have in March?

In San Antonio, Texas, the average sunshine duration in March is 6.5h.

What is the UV index reading in March in San Antonio?

The average daily maximum UV index in March is 5. A UV Index value of 3 to 5 symbolizes a medium hazard to health from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in March
San Antonio, TX

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).

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Average pressure in March
San Antonio, TX

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).

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Average wind speed in March
San Antonio, TX

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).

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Average humidity in March
San Antonio, TX

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%).

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Average rainfall in March
San Antonio, TX

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").

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Average rainfall days in March
San Antonio, TX

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).

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Average snowfall in March
San Antonio, TX

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").

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Average snowfall days in March
San Antonio, TX

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).

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Average daylight in March /
Average sunshine in March
San Antonio, TX

Average daylight in March / Average sunshine in March - San Antonio, TX
  • Average daylight in March: 12h and 1min

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).

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Average sunshine days in March
San Antonio, TX

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).

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Average UV index in March
San Antonio, TX

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).

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Average cloud cover in March
San Antonio, TX

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).

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Average visibility in March
San Antonio, TX

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).

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