Current sea water temperature:
+67.1°F
| Minimum sea water temperature in September: | 77.7°F |
| Maximum sea water temperature in September: | 59.7°F |
| Average sea water temperature in September: | 69.6°F |
| more information | |
14 days
forecast
forecast
| Appleton |
monthly
weather
weather
| Appleton |
Sea water temperature for the last 10 days:
| September 19 | 67.1°F | September 14 | 72.0°F |
| September 18 | 68.5°F | September 13 | 72.7°F |
| September 17 | 68.5°F | September 12 | 73.2°F |
| September 16 | 70.3°F | September 11 | 73.9°F |
| September 15 | 70.5°F | September 10 | 74.3°F |
Monthly sea water temperature, °F
When is the warmest sea in Appleton?
Based on the data about daily sea water temperature for the last three years the warmest sea in Appleton was noticed in July, August and September.
Monthly Sea Temperatures in Appleton, °F
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 77.8°F. The highest and lowest sea temperatures during the month were 81.9°F and 74.8°F.
Sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 75.4°F. The highest and lowest sea temperatures during the month were 77.7°F and 72.0°F.
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 73.4°F. The highest and lowest sea temperatures during the month were 77.7°F and 67.1°F.
current
weather
weather
| Appleton |
weather in
September
September
| Appleton |
Best time for vacation in Appleton
Appleton on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Appleton
Local time: 05:07
September 19, saturday
0600
54°F
W
11 mph
11 mph
0900
55°F
NW
11 mph
11 mph
1200
55°F
NW
9 mph
9 mph
1500
57°F
NW
11 mph
11 mph
1800
57°F
W
9 mph
9 mph
2100
59°F
W
7 mph
7 mph
September 20, sunday
0000
55°F
SW
11 mph
11 mph
0300
54°F
SW
9 mph
9 mph
