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
August ushers in an average high-temperature of a still warm 77°F (25°C), aligning closely with the preceding month. Green Bay's nights in August cool down to an average low-temperature of 59.4°F (15.2°C).Humidity
In August, the average relative humidity is 79%.Rainfall
In Green Bay, in August, it is raining for 14.3 days, with typically 1.93" (49mm) of accumulated precipitation. In Green Bay, during the entire year, the rain falls for 130.8 days and collects up to 24.8" (630mm) of precipitation.Snowfall
June through September are months without snowfall.Ocean temperature
August is the month with the warmest seawater, with an average ocean temperature of 67.6°F (19.8°C).Note: For the majority of people, swimming in water at 67.6°F (19.8°C) is not enjoyable. The challenge of controlling breathing escalates as the temperature decreases from 69.8°F (21°C) to 59°F (15°C).
Daylight
In Green Bay, the average length of the day in August is 13h and 59min.On the first day of the month, sunrise is at 5:39 am and sunset at 8:17 pm. On the last day of August, sunrise is at 6:14 am and sunset at 7:29 pm CDT.
Sunshine
In Green Bay, the average sunshine in August is 9.8h.UV index
June through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: In August, the maximum UV index of 5 transforms into these recommendations:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. During bright days, sunglasses that offer UVA and UVB defense are recommended.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in August?
What is the average humidity in August in Green Bay?
How much does it rain in August?
When it does not snow?
What is the month with the warmest ocean?
What is the ocean temperature in August?
What is the average length of the day in August?
What time are sunrise and sunset in August?
How many hours of sunshine does Green Bay have in August?
What are the months with the highest UV index?
What is the UV index intensity in August?
Average temperature in August
Green Bay, WI
- Average high temperature in August: 77°F
The warmest month (with the highest average high temperature) is July (78.1°F).
The month with the lowest average high temperature is January (22.6°F).
- Average low temperature in August: 59.4°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (12.4°F).
Average pressure in August
Green Bay, WI
- Average pressure in August: 29.96"Hg
The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in August
Green Bay, WI
- Average wind speed in August: 7.2mph
The windiest months (with the highest average wind speed) are January and February (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (7.2mph).
Average humidity in August
Green Bay, WI
- Average humidity in August: 79%
The month with the highest relative humidity is January (88%).
The months with the lowest relative humidity are April and May (76%).
Average rainfall in August
Green Bay, WI
- Average rainfall in August: 1.93"
The wettest month (with the highest rainfall) is May (3.31").
The driest month (with the least rainfall) is January (1.18").
Average rainfall days in August
Green Bay, WI
- Average rainfall days in August: 14.3 days
The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is February (3.7 days).
Average snowfall in August
Green Bay, WI
- Average snowfall in August: 0"
The month with the highest snowfall is February (5.79").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Green Bay, WI
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (15.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in August
Green Bay, WI
- Average sea temperature in August: 67.6°F
The best month for swimming (with the highest average sea temperature) is August (67.6°F).
The coldest month (with the lowest average sea temperature) is February (36.1°F).
Average daylight in August /
Average sunshine in August
Green Bay, WI
- Average daylight in August: 14h and 0min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in August: 9h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 3h and 24min).
Average sunshine days in August
Green Bay, WI
- Average sunshine days in August: 13.9 days
The months with the most sunshine days are September and November (17 days).
The month with the least sunshine days is April (11.6 days).
Average UV index in August
Green Bay, WI
- Average UV index in August: 5
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in August
Green Bay, WI
- Average cloud cover in August: 33
The month with the most cloud cover is January (Cloud cover 65).
The months with the least cloud cover are July and August (Cloud cover 33).
Average visibility in August
Green Bay, WI
- Average visibility in August: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
Green Bay, Wisconsin, USA
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