August weather forecast
Oshkosh, WI

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A beautiful nature park with many trees and neat lawns next to a calm pond in Oshkosh, Wisconsin
A beautiful nature park with many trees and neat lawns next to a calm pond in Oshkosh, Wisconsin

Weather in August

As the summer winds down, August in Oshkosh sees a slight decrease in temperature when compared to July. Despite the slight cooling, the weather remains predominantly hot. The average daylight in August starts decreasing noticeably. While August marks the end of the hot summer days, the weather is still generally pleasant. Being the last month of Summer, August is perfect to enjoy final summer activities before autumn sets in.

Temperature

The advent of August brings an average high-temperature of a still warm 75.9°F (24.4°C), almost identical to the preceding month. Oshkosh throughout August, records an average low-temperature of 59.9°F (15.5°C).

Humidity

The average relative humidity in August is 80%.

Rainfall

In Oshkosh, during August, the rain falls for 12.9 days and regularly aggregates up to 1.85" (47mm) of precipitation. In Oshkosh, Wisconsin, during the entire year, the rain falls for 126.8 days and collects up to 25.2" (640mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

In Oshkosh, the average length of the day in August is 13h and 57min.
On the first day of August, sunrise is at 5:43 am and sunset at 8:17 pm. On the last day of the month, sunrise is at 6:17 am and sunset at 7:31 pm CDT.

Sunshine

In Oshkosh, the average sunshine in August is 9.7h.

UV index

The months with the highest UV index in Oshkosh are May through August, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index, 5 in August, converts into the following recommendations:
Make use of precautions - Suggestions to resist sunburn are communicated. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average August temperature in Oshkosh?

The average high-temperature, in August, in Oshkosh, is 75.9°F (24.4°C), while the average low-temperature is 59.9°F (15.5°C).

What is the average humidity in August in Oshkosh?

In August, the average relative humidity in Oshkosh is 80%.

How many days does it rain in August in Oshkosh?

In August, the rain falls for 12.9 days. Throughout August, 1.85" (47mm) of precipitation is accumulated.

When it does not snow in Oshkosh?

May through September are months without snowfall.

How many hours of daylight does Oshkosh have in August?

In August, the average day length in Oshkosh is 13h and 57min.

When are sunrise and sunset in August in Oshkosh?

On the first day of August in Oshkosh, sunrise is at 5:43 am and sunset at 8:17 pm. On the last day of the month, sunrise is at 6:17 am and sunset at 7:31 pm CDT.

How many hours of sunshine does Oshkosh have in August?

In Oshkosh, Wisconsin, the average sunshine duration in August is 9.7h.

What are the months with the highest UV index in Oshkosh?

May through August, with an average maximum UV index of 5, are months with the highest UV index in Oshkosh, Wisconsin.

What is the UV index reading in August in Oshkosh?

In August, the average daily maximum UV index in Oshkosh, Wisconsin, is 5. A UV Index of 3 to 5 symbolizes a medium health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Oshkosh, WI

Average temperature in August - Oshkosh, WI
  • Average high temperature in August: 75.9°F

The warmest month (with the highest average high temperature) is July (77°F).
The month with the lowest average high temperature is January (22.5°F).

  • Average low temperature in August: 59.9°F

The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).

Average pressure in August
Oshkosh, WI

Average pressure in August - Oshkosh, WI
  • Average pressure in August: 29.96"Hg

The months with the highest atmospheric pressure are January, February and March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in August
Oshkosh, WI

Average wind speed in August - Oshkosh, WI
  • Average wind speed in August: 7.5mph

The windiest month (with the highest average wind speed) is April (10.5mph).
The calmest months (with the lowest average wind speed) are July and August (7.5mph).

Average humidity in August
Oshkosh, WI

Average humidity in August - Oshkosh, WI
  • Average humidity in August: 80%

The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is April (76%).

Average rainfall in August
Oshkosh, WI

Average rainfall in August - Oshkosh, WI
  • Average rainfall in August: 1.85"

The wettest month (with the highest rainfall) is May (3.62").
The driest month (with the least rainfall) is February (1.02").

Average rainfall days in August
Oshkosh, WI

Average rainfall days in August - Oshkosh, WI
  • Average rainfall days in August: 12.9 days

The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (3.6 days).

Average snowfall in August
Oshkosh, WI

Average snowfall in August - Oshkosh, WI
  • Average snowfall in August: 0"

The month with the highest snowfall is January (4.76").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Oshkosh, WI

Average snowfall days in August - Oshkosh, WI
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (13.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Oshkosh, WI

Average daylight in August / Average sunshine in August - Oshkosh, WI
  • Average daylight in August: 14h and 0min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in August: 9h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The months with the least sunshine are January and February (Average sunshine: 3h and 24min).

Average sunshine days in August
Oshkosh, WI

Average sunshine days in August - Oshkosh, WI
  • Average sunshine days in August: 15.8 days

The month with the most sunshine days is September (17.2 days).
The month with the least sunshine days is April (11.9 days).

Average UV index in August
Oshkosh, WI

Average UV index in August - Oshkosh, WI
  • Average UV index in August: 5

The months with the highest UV index are May, 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
Oshkosh, WI

Average cloud cover in August - Oshkosh, WI
  • Average cloud cover in August: 34

The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is July (Cloud cover 33).

Average visibility in August
Oshkosh, WI

Average visibility in August - Oshkosh, WI
  • Average visibility in August: 6mi

The months with the highest visibility are March, April, May, June, July, August, October, November and December (6mi).
The months with the lowest visibility are January, February and September (5mi).

Oshkosh, Wisconsin, USA

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