Measurements:
°C
°F
Oshkosh
86°F
NE 13 mph
Feels like: 86°F
Precip: 2%
World Resorts USA Oshkosh Weather

Oshkosh Sea Water Temperature

Current Sea Water Temperature:
+74.8°F
Maximum Sea Water Temperature in August: 82.2°F
Minimum Sea Water Temperature in August: 70.2°F
Average water temperature in August: 77.7°F

Sea Water Temperature for the Last 10 Days:

August 25 74.8°F August 20 78.2°F
August 24 75.4°F August 19 79.0°F
August 23 76.4°F August 18 79.0°F
August 22 77.6°F August 17 78.4°F
August 21 77.8°F August 16 78.4°F

When is the Warmest Sea for Oshkosh?

According to our data for the last three years for Oshkosh the highest average sea water temperature was in July, August and June.

Average Water Temperature by Month, °F

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Oshkosh was 80.6°F. The maximum and minimum values were 76.8°F and 85.4°F respectively.

Sea Water Temperature in August

Select Year: 2026 2025 2024

The average sea surface temperature in August 2026 for Oshkosh was 78.2°F. The maximum and minimum values were 74.8°F and 79.4°F respectively.

Sea Water Temperature in June

Select Year: 2026 2025 2024

The average sea surface temperature in June 2026 for Oshkosh was 73.1°F. The maximum and minimum values were 70.0°F and 76.8°F respectively.

Best Time to Visit Oshkosh
The most sunny months:
July 14 days
August 14 days
September 13 days
The most warm months:
July 81.4 °F
August 78.8 °F
June 76.0 °F
Warmest sea temperature:
July 78.8 °F
August 77.7 °F
June 72.3 °F
The most cold months:
January 20.6 °F
February 23.8 °F
December 28.0 °F
The most rainy months:
June 3 days
July 2 days
May 2 days
The most windy months:
November 12 mph
April 12 mph
October 11 mph

Oshkosh on the Weather Map

USA Resorts:
NAME
Boston +80
Chicago +80
Hawaii +84
Houston +106
Las Vegas +116
Los Angeles +96
Maui +70
Miami +92
Myrtle Beach +84
New York +82
San Diego +96
San Francisco +64
Santa Monica +86
Sarasota +92
Washington +84
24 Hours Weather Forecast
Oshkosh
Local time: 16:45
25 aug, tuesday
1800 86°F
NE
13 mph
2100 74°F
NE
10 mph
26 aug, wednesday
0000 70°F
N
13 mph
0300 66°F
N
14 mph
0600 64°F
NE
17 mph
0900 68°F
NE
16 mph
1200 80°F
E
13 mph
1500 82°F
SE
16 mph