Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall days in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
April's arrival coincides with a subtle temperature rise, moving from March's 75.7°F (24.3°C) to a still warm 82°F (27.8°C). San Antonio cools down to an average low-temperature of 63.1°F (17.3°C) throughout the month of April.Heat index
In April, the heat index is calculated to be a tropical 87.8°F (31°C). If one continues to be active during exposure, it might cause tiredness and subsequent heat cramps.Note that heat index values are valued for light wind and location in the shade. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is the outcome of merging air's temperature and its humidity metrics. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
Humidity
In San Antonio, the average relative humidity in April is 73%.Rainfall
In April, the rain falls for 13.2 days. Throughout April, 1.89" (48mm) of precipitation is accumulated. Throughout the year, there are 200.6 rainfall days, and 40.39" (1026mm) of precipitation is accumulated.Snowfall
In San Antonio, snow does not fall in February through December.Daylight
The average length of the day in April is 12h and 52min.On the first day of the month, sunrise is at 7:18 am and sunset at 7:47 pm. On the last day of April, sunrise is at 6:48 am and sunset at 8:03 pm EDT.
Sunshine
In April, the average sunshine is 9.3h.UV index
The average daily maximum UV index in April is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index, 6 during April, leads to the following recommendations:
Deflect overexposure. Sun protection is a necessity. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average April temperature in San Antonio?
What is the average humidity in April?
How many days does it rain in April?
When it does not snow?
What is the average length of the day in April?
When are sunrise and sunset in April?
How long on average sun shines in April?
How high is the UV index in April in San Antonio?
Average temperature in April
San Antonio, FL
- Average high temperature in April: 82°F
The warmest month (with the highest average high temperature) is August (90.1°F).
The month with the lowest average high temperature is January (67.6°F).
- Average low temperature in April: 63.1°F
The month with the highest average low temperature is August (76.3°F).
The coldest month (with the lowest average low temperature) is January (50.2°F).
Average pressure in April
San Antonio, FL
- Average pressure in April: 30.03"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is September (29.96"Hg).
Average wind speed in April
San Antonio, FL
- Average wind speed in April: 6.5mph
The windiest months (with the highest average wind speed) are March and April (6.5mph).
The calmest month (with the lowest average wind speed) is July (4.5mph).
Average humidity in April
San Antonio, FL
- Average humidity in April: 73%
The months with the highest relative humidity are August and September (79%).
The month with the lowest relative humidity is March (72%).
Average rainfall in April
San Antonio, FL
- Average rainfall in April: 1.89"
The wettest month (with the highest rainfall) is August (7.17").
The driest months (with the least rainfall) are February, March and November (1.42").
Average rainfall days in April
San Antonio, FL
- Average rainfall days in April: 13.2 days
The month with the highest number of rainy days is August (28.8 days).
The month with the least rainy days is December (9.5 days).
Average snowfall days in April
San Antonio, FL
- Average snowfall days in April: 0 days
The month with the highest number of snowfall days is January (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in April /
Average sunshine in April
San Antonio, FL
- Average daylight in April: 12h and 5min
The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).
- Average sunshine in April: 9h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 6h and 18min).
Average sunshine days in April
San Antonio, FL
- Average sunshine days in April: 14.5 days
The month with the most sunshine days is January (18.9 days).
The month with the least sunshine days is August (0.8 days).
Average UV index in April
San Antonio, FL
- Average UV index in April: 6
The months with the highest UV index are May, June, July and September (UV index 7).
The month with the lowest UV index is January (UV index 4).
Average cloud cover in April
San Antonio, FL
- Average cloud cover in April: 29
The months with the most cloud cover are February and December (Cloud cover 35).
The month with the least cloud cover is May (Cloud cover 27).
Average visibility in April
San Antonio, FL
- Average visibility in April: 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).
San Antonio, Florida, USA
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