21.08
fri
fri
Day
72°F
N 17 mph
Precip.
88%
88%
Night
64°F
SE 12 mph
Precip.
78%
78%
22.08
sat
sat
Day
72°F
S 10 mph
Precip.
24%
24%
Night
64°F
S 12 mph
Precip.
3%
3%
23.08
sun
sun
Day
66°F
S 4 mph
Precip.
3%
3%
Night
59°F
NW 13 mph
Precip.
20%
20%
24.08
mon
mon
Day
70°F
NW 6 mph
Precip.
15%
15%
Night
63°F
N 10 mph
Precip.
23%
23%
25.08
tue
tue
Day
70°F
NE 11 mph
Precip.
17%
17%
Night
64°F
NE 13 mph
Precip.
65%
65%
26.08
wed
wed
Day
77°F
E 11 mph
Precip.
3%
3%
Night
66°F
S 11 mph
Precip.
9%
9%
27.08
thu
thu
Day
66°F
SW 10 mph
Precip.
8%
8%
Night
66°F
NW 6 mph
Precip.
18%
18%
Sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 75.7°F. The highest and lowest sea temperatures during the month were 76.5°F and 74.5°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 67.8°F. The highest and lowest sea temperatures during the month were 70.5°F and 62.2°F.
Air temperature in Oshkosh, °F
Precipitation total in Oshkosh, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Oshkosh
Oshkosh on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Oshkosh
Local time: 15:11
August 21, friday
1800
70°F
N
9 mph
9 mph
2100
72°F
NE
9 mph
9 mph
August 22, saturday
0000
64°F
SE
12 mph
12 mph
0300
63°F
SE
11 mph
11 mph
0600
61°F
SE
11 mph
11 mph
0900
63°F
SE
11 mph
11 mph
1200
72°F
S
10 mph
10 mph
1500
77°F
S
11 mph
11 mph
