August weather forecastSussex, NJ
August
Weather in August
August, the last month of the summer in Sussex, is also a moderately hot month, with an average temperature fluctuating between 80.2°F (26.8°C) and 59.5°F (15.3°C).Temperature
Sussex experiences a recorded average high-temperature of a still warm 80.2°F (26.8°C) in August, closely aligned with July's 82.6°F (28.1°C). In Sussex, an average temperature of 59.5°F (15.3°C) is noted during August nights.Humidity
The average relative humidity in August is 78%.Rainfall
In Sussex, during August, the rain falls for 15.5 days and regularly aggregates up to 2.6" (66mm) of precipitation. Throughout the year, in Sussex, there are 164.9 rainfall days, and 31.89" (810mm) of precipitation is accumulated.Snowfall
In Sussex, New Jersey, snow does not fall in June through September.Daylight
The average length of the day in August is 13h and 46min.On the first day of August, sunrise is at 5:54 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 6:24 am and sunset at 7:32 pm EDT.
Sunshine
In Sussex, the average sunshine in August is 9.9h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum high UV index of 5 in August translates into the following recommendations:
Act with care - Obligation to protect against skin and eye damage is highlighted. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Sussex, NJ
- Average high temperature in August: 80.2°F
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (32.7°F).
- Average low temperature in August: 59.5°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in August
Sussex, NJ
- Average pressure in August: 29.99"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in August
Sussex, NJ
- Average wind speed in August: 4.8mph
The windiest month (with the highest average wind speed) is March (7.7mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in August
Sussex, NJ
- Average humidity in August: 78%
The months with the highest relative humidity are February, October and December (82%).
The month with the lowest relative humidity is April (76%).
Average rainfall in August
Sussex, NJ
- Average rainfall in August: 2.6"
The wettest month (with the highest rainfall) is May (3.19").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in August
Sussex, NJ
- Average rainfall days in August: 15.5 days
The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is January (8.7 days).
Average snowfall in August
Sussex, NJ
- Average snowfall in August: 0"
The month with the highest snowfall is February (5.43").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Sussex, NJ
- Average snowfall days in August: 0 days
The months with the highest number of snowfall days are January and February (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Sussex, NJ
- Average daylight in August: 13h and 48min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in August: 9h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).
Average sunshine days in August
Sussex, NJ
- Average sunshine days in August: 12.9 days
The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is April (10.4 days).
Average UV index in August
Sussex, NJ
- Average UV index in August: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in August
Sussex, NJ
- Average cloud cover in August: 37
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 36).
Average visibility in August
Sussex, NJ
- Average visibility in August: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).





