Average sea water temperature in April:
+42.7°F
| Minimum sea water temperature in April: | 47.5°F |
| Maximum sea water temperature in April: | 39.9°F |
Daily sea water temperature in April, °F
Show year:
2025
2024
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The average sea water temperature in April of 2025 was 41.0°F. The highest and lowest sea temperatures during the month were 45.0°F and 39.9°F.
sea water
temperature
temperature
| Portsmouth |
monthly
weather
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| Portsmouth |
current
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| Portsmouth |
14 days
forecast
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| Portsmouth |
Monthly sea water temperature in Portsmouth, °F
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
11
22
33
44
55
66
77
88
45.8
51.3
57.2
62.4
65.4
63.4
57.5
49.6
42.7
39.7
39.1
41.7
Which USA resorts have warmest sea in April?
| Place name | April 2025 | April 2024 |
|---|---|---|
| Everglades | 78.6°F | 78.0°F |
| West Palm Beach | 78.3°F | 77.5°F |
| Miami Beach | 78.2°F | 77.1°F |
| Kailua Kona | 78.1°F | 76.9°F |
| Fort Lauderdale | 77.9°F | 76.9°F |
| Key West | 77.8°F | 77.6°F |
| Miami | 77.8°F | 76.9°F |
| Honolulu | 77.3°F | 76.2°F |
| Hawaii | 77.2°F | 76.1°F |
| Marco Island | 77.1°F | 76.6°F |
| Cape Coral | 76.9°F | 76.3°F |
| Naples | 76.7°F | 76.3°F |
| Maui | 76.5°F | 75.4°F |
| Tampa | 76.3°F | 74.1°F |
| Oahu | 76.3°F | 75.0°F |
| Sarasota | 75.7°F | 74.3°F |
| Siesta Key | 75.4°F | 74.3°F |
| Clearwater Beach | 75.2°F | 73.5°F |
| Kauai | 74.8°F | 75.1°F |
| Cocoa Beach | 74.7°F | 73.9°F |
Best time for vacation in Portsmouth
Portsmouth on a weather map
Leaflet | Tiles © Esri
Places in USA:
Name
°F
24 Hours Forecast
Portsmouth
Local time: 15:46
April 27, sunday
1800
46°F
SE
11 mph
11 mph
2100
43°F
SE
11 mph
11 mph
April 28, monday
0000
46°F
SE
7 mph
7 mph
0300
48°F
SE
6 mph
6 mph
0600
48°F
SE
6 mph
6 mph
0900
55°F
SE
9 mph
9 mph
1200
68°F
SE
8 mph
8 mph
1500
73°F
SE
7 mph
7 mph
