April weather forecastSan Marcos, TX
April
Weather in April
April in San Marcos, Texas, is a moderately hot spring month, with temperature in the range of an average high of 77.5°F (25.3°C) and an average low of 58.6°F (14.8°C).Temperature
The beginning of April signals a minor rise in the average high-temperature, moving from an agreeable 70.9°F (21.6°C) in March to a moderately hot 77.5°F (25.3°C). Throughout the month of April, the average temperature dips to a moderate 58.6°F (14.8°C) at night.Humidity
The average relative humidity in April is 74%.Rainfall
In San Marcos, in April, during 14.9 rainfall days, 2.05" (52mm) of precipitation is typically accumulated. In San Marcos, Texas, during the entire year, the rain falls for 151.8 days and collects up to 26.89" (683mm) of precipitation.Snowfall
March through November are months without snowfall.Daylight
In San Marcos, the average length of the day in April is 12h and 55min.On the first day of April, sunrise is at 7:20 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 6:49 am and sunset at 8:08 pm CDT.
Sunshine
In April, the average sunshine is 7.4h.UV index
In San Marcos, the average daily maximum UV index in April is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index of 5 in April converts into the following recommendations:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Minimize direct exposure to the Sun during midday when its radiation is at its peak. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
San Marcos, TX
- Average high temperature in April: 77.5°F
The warmest month (with the highest average high temperature) is August (95.9°F).
The month with the lowest average high temperature is January (59.9°F).
- Average low temperature in April: 58.6°F
The month with the highest average low temperature is August (74.7°F).
The coldest month (with the lowest average low temperature) is January (42.8°F).
Average pressure in April
San Marcos, TX
- Average pressure in April: 29.93"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in April
San Marcos, TX
- Average wind speed in April: 8.8mph
The windiest month (with the highest average wind speed) is February (9.1mph).
The calmest month (with the lowest average wind speed) is September (6.1mph).
Average humidity in April
San Marcos, TX
- Average humidity in April: 74%
The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is August (62%).
Average rainfall in April
San Marcos, TX
- Average rainfall in April: 2.05"
The wettest month (with the highest rainfall) is May (4.57").
The driest month (with the least rainfall) is February (1.1").
Average rainfall days in April
San Marcos, TX
- Average rainfall days in April: 14.9 days
The month with the highest number of rainy days is May (16.6 days).
The month with the least rainy days is January (9.4 days).
Average snowfall in April
San Marcos, TX
- Average snowfall in April: 0"
The months with the highest snowfall are January and February (0.12").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in April
San Marcos, TX
- Average snowfall days in April: 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 April /
Average sunshine in April
San Marcos, TX
- Average daylight in April: 12h and 54min
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 April: 7h and 24min
The months with the most sunshine are July and August (Average sunshine: 10h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).
Average sunshine days in April
San Marcos, TX
- Average sunshine days in April: 13.1 days
The month with the most sunshine days is January (19.4 days).
The month with the least sunshine days is May (11.9 days).
Average UV index in April
San Marcos, TX
- Average UV index in April: 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 April
San Marcos, TX
- Average cloud cover in April: 45
The month with the most cloud cover is March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in April
San Marcos, TX
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
