Average sea water temperature in February:
+38.8°F
| Minimum sea water temperature in February: | 41.9°F |
| Maximum sea water temperature in February: | 34.3°F |
Daily sea water temperature in February, °F
Show year:
2026
2025
2024
The average sea water temperature in February of 2026 was 36.8°F. The highest and lowest sea temperatures during the month were 38.7°F and 34.3°F.
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Monthly sea water temperature in Portsmouth, °F
Which USA resorts have warmest sea in February?
| Place name | February 2026 | February 2025 |
|---|---|---|
| Honolulu | 76.5°F | 76.9°F |
| Hawaii | 76.4°F | 76.8°F |
| Kauai | 76.1°F | 74.2°F |
| Maui | 76.0°F | 76.4°F |
| Oahu | 74.8°F | 75.7°F |
| West Palm Beach | 74.2°F | 75.9°F |
| Fort Lauderdale | 73.3°F | 75.8°F |
| Miami Beach | 71.9°F | 75.8°F |
| Key West | 69.2°F | 74.6°F |
| Miami | 69.0°F | 75.3°F |
| Cocoa Beach | 63.7°F | 68.6°F |
| Naples | 62.7°F | 70.9°F |
| Tampa | 62.2°F | 68.2°F |
| San Diego | 62.0°F | 57.7°F |
| Santa Catalina Island | 61.9°F | 57.6°F |
| Laguna Beach | 61.6°F | 58.0°F |
| Irvine | 61.5°F | 58.0°F |
| Newport Beach | 61.5°F | 58.0°F |
| Santa Monica | 61.4°F | 57.7°F |
| Hollywood | 61.4°F | 57.7°F |
Best time for vacation in Portsmouth
Portsmouth on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Portsmouth
Local time: 16:34
August 12, wednesday
1800
86°F
NE
4 mph
4 mph
2100
75°F
NE
6 mph
6 mph
August 13, thursday
0000
70°F
NE
5 mph
5 mph
0300
66°F
E
6 mph
6 mph
0600
63°F
NE
8 mph
8 mph
0900
70°F
NE
9 mph
9 mph
1200
79°F
E
5 mph
5 mph
1500
75°F
E
2 mph
2 mph
