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
The arrival of April introduces a minor uplift in high-temperatures, adjusting from 75°F (23.9°C) in March to a still moderately hot 81.7°F (27.6°C). Throughout April, an average low-temperature of 61.9°F (16.6°C) is experienced.Heat index
In April, the average heat index is appraised at a tropical 86°F (30°C). Fatigue might occur with continuous exposure and activity, potentially causing heat cramps.Data suggests that the heat index is set for environments in shade and with a light wind. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
Humidity
In April, the average relative humidity is 72%.Rainfall
In April, the rain falls for 10.1 days. Throughout April, 0.87" (22mm) of precipitation is accumulated. Throughout the year, there are 138.3 rainfall days, and 12.76" (324mm) of precipitation is accumulated.Snowfall
February through December are months without snowfall.Daylight
In San Mateo, the average length of the day in April is 12h and 54min.On the first day of April, sunrise is at 7:14 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 6:44 am and sunset at 8:02 pm EDT.
Sunshine
In April, the average sunshine is 9.4h.UV index
In San Mateo, Florida, the average daily maximum UV index in April is 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for average individuals.Note: In April, the average maximum UV index of 6 translates into the following recommendations:
Fend off overexposure. Sun protection is vital. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. 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
What is the usual temperature for San Mateo in April?
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 is the sunrise / sunset in April?
How many hours of sunshine does San Mateo have in April?
What is the UV index reading in April?
Average temperature in April
San Mateo, FL
- Average high temperature in April: 81.7°F
The warmest month (with the highest average high temperature) is August (91.9°F).
The month with the lowest average high temperature is January (65.8°F).
- Average low temperature in April: 61.9°F
The month with the highest average low temperature is August (75.4°F).
The coldest month (with the lowest average low temperature) is January (48.2°F).
Average pressure in April
San Mateo, 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 (29.97"Hg).
Average wind speed in April
San Mateo, FL
- Average wind speed in April: 5.8mph
The windiest month (with the highest average wind speed) is April (5.8mph).
The calmest months (with the lowest average wind speed) are July and August (4.2mph).
Average humidity in April
San Mateo, FL
- Average humidity in April: 72%
The months with the highest relative humidity are August, September and December (77%).
The month with the lowest relative humidity is March (70%).
Average rainfall in April
San Mateo, FL
- Average rainfall in April: 0.87"
The wettest month (with the highest rainfall) is July (2.09").
The driest month (with the least rainfall) is March (0.47").
Average rainfall days in April
San Mateo, FL
- Average rainfall days in April: 10.1 days
The month with the highest number of rainy days is August (18.8 days).
The month with the least rainy days is November (6.7 days).
Average snowfall days in April
San Mateo, 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 Mateo, FL
- Average daylight in April: 12h and 5min
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: 9h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).
Average sunshine days in April
San Mateo, FL
- Average sunshine days in April: 17.8 days
The month with the most sunshine days is January (21.3 days).
The month with the least sunshine days is June (9.3 days).
Average UV index in April
San Mateo, FL
- Average UV index in April: 6
The months with the highest UV index are May, June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 4).
Average cloud cover in April
San Mateo, FL
- Average cloud cover in April: 31
The month with the most cloud cover is December (Cloud cover 40).
The months with the least cloud cover are May and July (Cloud cover 30).
Average visibility in April
San Mateo, 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 Mateo, Florida, USA
Weather forecast for your location
2. Allow the app to use your location