Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average sea temperature in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
The dawn of August sees an average high-temperature of a still moderately hot 79.5°F (26.4°C), subtly contrasting with July's 80.2°F (26.8°C). Rumson maintains an average low-temperature of 70.7°F (21.5°C) throughout August's nights.Humidity
In Rumson, the average relative humidity in August is 74%.Rainfall
In Rumson, in August, it is raining for 12.3 days, with typically 1.54" (39mm) of accumulated precipitation. In Rumson, during the entire year, the rain falls for 125.1 days and collects up to 12.64" (321mm) of precipitation.Snowfall
In Rumson, snow does not fall in April through September and November.Ocean temperature
August is the month with the warmest seawater, with an average ocean temperature of 74.7°F (23.7°C).Note: Cold sensitivities vary, but with the right amount of sunshine, a gentle breeze, and a warm day, a swim in 74.7°F (23.7°C) waters might be just right. Remember, Olympic swimmers are used to waters between 77°F (25°C) and 82.4°F (28°C).
Daylight
In Rumson, the average length of the day in August is 13h and 43min.On the first day of August in Rumson, sunrise is at 5:54 am and sunset at 8:10 pm. On the last day of the month, sunrise is at 6:23 am and sunset at 7:29 pm EDT.
Sunshine
In August, the average sunshine is 10.5h.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for average individuals.Note: A maximum daily UV index of 6 during August morphs into the following directions:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Attention! UV strength is notably upped by the reflection of sand and water.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in August in Rumson?
What is the average humidity in August in Rumson?
How many days does it rain in August in Rumson?
When it does not snow in Rumson?
When is the ocean warmest in Rumson?
How warm is the water in August in Rumson?
What is the average length of the day in August in Rumson?
What time are sunrise and sunset in August in Rumson?
How many hours of sunshine does Rumson have in August?
What are the months with the highest UV index in Rumson?
What is the UV index reading in August in Rumson?
Average temperature in August
Rumson, NJ
- Average high temperature in August: 79.5°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (37.9°F).
- Average low temperature in August: 70.7°F
The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (28.8°F).
Average pressure in August
Rumson, NJ
- Average pressure in August: 29.98"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
Rumson, NJ
- Average wind speed in August: 8.1mph
The windiest month (with the highest average wind speed) is January (12.4mph).
The calmest month (with the lowest average wind speed) is July (7.9mph).
Average humidity in August
Rumson, NJ
- Average humidity in August: 74%
The months with the highest relative humidity are May and June (79%).
The month with the lowest relative humidity is November (73%).
Average rainfall in August
Rumson, NJ
- Average rainfall in August: 1.54"
The wettest month (with the highest rainfall) is July (1.61").
The driest month (with the least rainfall) is January (0.63").
Average rainfall days in August
Rumson, NJ
- Average rainfall days in August: 12.3 days
The month with the highest number of rainy days is July (15.1 days).
The month with the least rainy days is January (6.5 days).
Average snowfall in August
Rumson, NJ
- Average snowfall in August: 0"
The month with the highest snowfall is December (0.47").
The months with the least snowfall are April, May, June, July, August, September and November (0").
Average snowfall days in August
Rumson, NJ
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (3.9 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).
Average sea temperature in August
Rumson, NJ
- Average sea temperature in August: 74.5°F
The best month for swimming (with the highest average sea temperature) is August (74.5°F).
The coldest month (with the lowest average sea temperature) is February (40.1°F).
Average daylight in August /
Average sunshine in August
Rumson, NJ
- Average daylight in August: 13h and 4min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in August: 10h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in August
Rumson, NJ
- Average sunshine days in August: 15.6 days
The month with the most sunshine days is November (21.6 days).
The month with the least sunshine days is July (13 days).
Average UV index in August
Rumson, NJ
- Average UV index in August: 6
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in August
Rumson, NJ
- Average cloud cover in August: 28
The month with the most cloud cover is February (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in August
Rumson, NJ
- 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).
Rumson, New Jersey, USA
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