August weather forecastLewes, DE
August
Weather in August
The warm summer's settled rhythm continues in August, which retains relatively high temperatures throughout the month. A minor decrease from July is observed, with lows averaging at 72.1°F (22.3°C) and highs peaking at 79.5°F (26.4°C). August experiences the highest rainfall of the year at 4.13" (105mm), differing from July’s slightly drier conditions. The comforting rhythm of warm days continues with the highest sea temperature recorded for the year. August gracefully upholds the summer season while subtly hinting at the nearing end of the warmest months.Temperature
Lewes measures an average high-temperature of a still moderately hot 79.5°F (26.4°C) in August, nearly consistent with the preceding month. Lewes registers a subtle dip to an average of 72.1°F (22.3°C) during the nights of August.Humidity
In Lewes, the average relative humidity in August is 78%.Rainfall
August is the month with the most rainfall. Rain falls for 18.2 days and accumulates 4.13" (105mm) of precipitation.Snowfall
In Lewes, snow does not fall in April through October.Ocean temperature
With an average ocean temperature of 77°F (25°C), August is the month with the warmest seawater.Note: Swimming, diving, and other water-related activities in temperatures between 77°F (25°C) and 84.2°F (29°C) are considered highly enjoyable and satisfying for longer durations without uneasiness.
Daylight
The average length of the day in August is 13h and 38min.On the first day of August in Lewes, sunrise is at 6:02 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 6:29 am and sunset at 7:31 pm EDT.
Sunshine
In August, the average sunshine is 10.6h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index, 6 in August, converts into the following recommendations:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Be careful! The Sun's UV radiation is accentuated by reflecting off sand and water.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Lewes, DE
- Average high temperature in August: 79.5°F
The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (41.2°F).
- Average low temperature in August: 72.1°F
The month with the highest average low temperature is July (73°F).
The coldest month (with the lowest average low temperature) is January (32°F).
Average pressure in August
Lewes, DE
- Average pressure in August: 29.98"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in August
Lewes, DE
- Average wind speed in August: 8.3mph
The windiest month (with the highest average wind speed) is January (12.5mph).
The calmest month (with the lowest average wind speed) is August (8.3mph).
Average humidity in August
Lewes, DE
- Average humidity in August: 78%
The month with the highest relative humidity is May (81%).
The month with the lowest relative humidity is November (73%).
Average rainfall in August
Lewes, DE
- Average rainfall in August: 4.13"
The wettest month (with the highest rainfall) is August (4.13").
The driest month (with the least rainfall) is January (2.2").
Average rainfall days in August
Lewes, DE
- Average rainfall days in August: 18.2 days
The month with the highest number of rainy days is July (18.6 days).
The month with the least rainy days is January (9.6 days).
Average snowfall in August
Lewes, DE
- Average snowfall in August: 0"
The month with the highest snowfall is January (0.98").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in August
Lewes, DE
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (3.7 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average sea temperature in August
Lewes, DE
- Average sea temperature in August: 76.9°F
The best month for swimming (with the highest average sea temperature) is August (76.9°F).
The coldest month (with the lowest average sea temperature) is February (40.7°F).
Average daylight in August /
Average sunshine in August
Lewes, DE
- Average daylight in August: 13h and 36min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in August: 10h and 36min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).
Average sunshine days in August
Lewes, DE
- Average sunshine days in August: 10 days
The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is May (9.8 days).
Average UV index in August
Lewes, DE
- Average UV index in August: 6
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in August
Lewes, DE
- Average cloud cover in August: 27
The months with the most cloud cover are February and March (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 26).
Average visibility in August
Lewes, DE
- Average visibility in August: 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).
