Average sea water temperature in September:
+62.7°F
| Minimum sea water temperature in September: | 68.7°F |
| Maximum sea water temperature in September: | 56.5°F |
Daily sea water temperature in September, °F
Show year:
2023
2022
2021
The average sea water temperature in September of 2023 was 63.6°F. The highest and lowest sea temperatures during the month were 68.7°F and 58.5°F.
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Monthly sea water temperature in Portsmouth, °F
Which USA resorts have warmest sea in September?
| Place name | September 2023 | September 2022 |
|---|---|---|
| Key West | 87.3°F | 87.3°F |
| Corpus Christi | 87.1°F | 85.4°F |
| Naples | 86.8°F | 87.3°F |
| Marco Island | 86.7°F | 87.2°F |
| Galveston Island | 86.6°F | 85.2°F |
| Galveston | 86.5°F | 85.1°F |
| Miami Beach | 86.3°F | 86.7°F |
| South Padre Island | 86.3°F | 84.9°F |
| Fort Lauderdale | 86.2°F | 86.4°F |
| West Palm Beach | 86.2°F | 86.3°F |
| Houston | 86.1°F | 84.5°F |
| Cape Coral | 86.0°F | 86.1°F |
| Miami | 86.0°F | 86.5°F |
| Siesta Key | 85.8°F | 86.3°F |
| Sarasota | 85.8°F | 86.1°F |
| Gulf Shores | 85.5°F | 84.9°F |
| Tampa | 85.5°F | 85.4°F |
| Clearwater Beach | 85.5°F | 85.3°F |
| St. Petersburg | 85.3°F | 85.6°F |
| Santa Rosa Beach | 85.3°F | 84.5°F |
Best time for vacation in Portsmouth
Portsmouth on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Portsmouth
Local time: 17:10
May 15, wednesday
1800
59°F
NW
3 mph
3 mph
2100
57°F
N
3 mph
3 mph
May 16, thursday
0000
55°F
N
4 mph
4 mph
0300
55°F
N
3 mph
3 mph
0600
55°F
SW
3 mph
3 mph
0900
57°F
W
6 mph
6 mph
1200
57°F
W
6 mph
6 mph
1500
61°F
W
8 mph
8 mph
