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 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
Williamsburg's April weather indicates a minor ascent in high-temperatures, adjusting from a warm 76.3°F (24.6°C) in March to a still moderately hot 82.6°F (28.1°C). Nighttime temperatures consistently average a refreshing 64°F (17.8°C) during April.Heat index
In April, the heat index is estimated at a hot 87.8°F (31°C). Exhaustion becomes probable with enduring exposure and activity, potentially causing heat cramps.Heat index details are generally centered around shaded locations and a mild breeze. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is the outcome of merging air's temperature and its humidity metrics. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
Humidity
The average relative humidity in April is 72%.Rainfall
In Williamsburg, in April, it is raining for 9 days, with typically 0.51" (13mm) of accumulated precipitation. Throughout the year, there are 126.6 rainfall days, and 9.06" (230mm) of precipitation is accumulated.Daylight
The average length of the day in April is 12h and 52min.On the first day of the month, sunrise is at 7:14 am and sunset at 7:44 pm. On the last day of April, sunrise is at 6:45 am and sunset at 8:00 pm EDT.
Sunshine
In Williamsburg, the average sunshine in April is 9.2h.UV index
In Williamsburg, the average daily maximum UV index in April is 6. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index, 6 during April, leads to the following recommendations:
Deter overexposure. Protecting against the sun's effects is essential. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in April?
What is the average humidity in April?
How many days does it rain in April?
How many hours of daylight does Williamsburg have in April?
What time are sunrise and sunset in April in Williamsburg?
How long on average sun shines in April?
What is the UV index reading in April?
Average temperature in April
Williamsburg, FL
- Average high temperature in April: 82.6°F
The warmest month (with the highest average high temperature) is August (91°F).
The month with the lowest average high temperature is January (68.5°F).
- Average low temperature in April: 64°F
The month with the highest average low temperature is August (76.8°F).
The coldest month (with the lowest average low temperature) is January (51.3°F).
Average pressure in April
Williamsburg, 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
Williamsburg, FL
- Average wind speed in April: 6.7mph
The windiest month (with the highest average wind speed) is April (6.7mph).
The calmest month (with the lowest average wind speed) is July (4.8mph).
Average humidity in April
Williamsburg, FL
- Average humidity in April: 72%
The month with the highest relative humidity is September (77%).
The month with the lowest relative humidity is March (70%).
Average rainfall in April
Williamsburg, FL
- Average rainfall in April: 0.51"
The wettest month (with the highest rainfall) is August (1.54").
The driest month (with the least rainfall) is March (0.2").
Average rainfall days in April
Williamsburg, FL
- Average rainfall days in April: 9 days
The month with the highest number of rainy days is July (19 days).
The month with the least rainy days is January (4.8 days).
Average daylight in April /
Average sunshine in April
Williamsburg, 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 1min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).
Average sunshine days in April
Williamsburg, FL
- Average sunshine days in April: 19.6 days
The month with the most sunshine days is January (24.8 days).
The month with the least sunshine days is July (6.6 days).
Average UV index in April
Williamsburg, FL
- Average UV index in April: 6
The months with the highest UV index are May, June, July, August and September (UV index 7).
The month with the lowest UV index is January (UV index 4).
Average cloud cover in April
Williamsburg, FL
- Average cloud cover in April: 31
The month with the most cloud cover is February (Cloud cover 38).
The months with the least cloud cover are May and October (Cloud cover 30).
Average visibility in April
Williamsburg, 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).
Williamsburg, Florida, USA
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