Average sea water temperature in January:
+41.8°F
| Minimum sea water temperature in January: | 45.9°F |
| Maximum sea water temperature in January: | 39.4°F |
Daily sea water temperature in January, °F
Show year:
2024
2023
2022
The average sea water temperature in January of 2024 was 41.4°F. The highest and lowest sea temperatures during the month were 43.0°F and 39.6°F.
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Monthly sea water temperature in Portsmouth, °F
Which USA resorts have warmest sea in January?
| Place name | January 2024 | January 2023 |
|---|---|---|
| Kailua Kona | 77.6°F | 77.6°F |
| Maui | 76.8°F | 76.7°F |
| Honolulu | 76.6°F | 77.4°F |
| West Palm Beach | 76.5°F | 77.2°F |
| Hawaii | 76.5°F | 77.3°F |
| Kauai | 76.0°F | 76.9°F |
| Fort Lauderdale | 75.9°F | 76.6°F |
| Oahu | 75.6°F | 76.9°F |
| Miami Beach | 74.8°F | 74.9°F |
| Miami | 73.1°F | 72.3°F |
| Port St. Lucie | 72.7°F | 72.2°F |
| Key West | 72.7°F | 73.4°F |
| Marco Island | 67.2°F | 67.6°F |
| Naples | 66.8°F | 67.2°F |
| Cape Coral | 66.2°F | 67.4°F |
| Cocoa Beach | 65.7°F | 68.0°F |
| South Padre Island | 64.8°F | 64.1°F |
| Siesta Key | 63.4°F | 64.4°F |
| Sarasota | 63.2°F | 64.3°F |
| Tampa | 63.0°F | 63.9°F |
Best time for vacation in Portsmouth
Portsmouth on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Portsmouth
Local time: 15:31
November 21, thursday
1800
45°F
SW
16 mph
16 mph
2100
45°F
SW
17 mph
17 mph
November 22, friday
0000
45°F
W
19 mph
19 mph
0300
45°F
W
23 mph
23 mph
0600
46°F
W
21 mph
21 mph
0900
48°F
N
14 mph
14 mph
1200
48°F
N
10 mph
10 mph
1500
48°F
NW
10 mph
10 mph
