Average sea water temperature in July:
+63.3°F
| Minimum sea water temperature in July: | 70.3°F |
| Maximum sea water temperature in July: | 57.0°F |
Daily sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 63.1°F. The highest and lowest sea temperatures during the month were 67.8°F and 60.6°F.
sea water
temperature
temperature
| Portsmouth |
monthly
weather
weather
| Portsmouth |
current
weather
weather
| Portsmouth |
14 days
forecast
forecast
| Portsmouth |
Monthly sea water temperature in Portsmouth, °F
Which USA resorts have warmest sea in July?
| Place name | July 2025 | July 2024 |
|---|---|---|
| New Orleans | 87.4°F | 87.1°F |
| Clearwater Beach | 87.1°F | 88.3°F |
| St. Petersburg | 87.0°F | 88.0°F |
| Sarasota | 86.9°F | 87.9°F |
| Sanibel Island | 86.9°F | 87.7°F |
| Siesta Key | 86.9°F | 87.9°F |
| Pensacola | 86.9°F | 87.3°F |
| Tampa | 86.8°F | 87.4°F |
| Key West | 86.7°F | 87.6°F |
| Orange Beach | 86.7°F | 86.7°F |
| Pensacola Beach | 86.7°F | 87.1°F |
| Naples | 86.6°F | 87.2°F |
| Galveston | 86.4°F | 86.3°F |
| Miami | 86.3°F | 86.9°F |
| Panama City Beach | 86.3°F | 86.8°F |
| Houston | 86.3°F | 86.4°F |
| Destin | 86.3°F | 86.6°F |
| Key Largo | 86.2°F | 87.1°F |
| Santa Rosa Beach | 86.2°F | 86.6°F |
| Fort Walton Beach | 86.1°F | 86.4°F |
Best time for vacation in Portsmouth
Portsmouth on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Portsmouth
Local time: 19:34
February 26, thursday
2100
28°F
SE
6 mph
6 mph
February 27, friday
0000
25°F
E
7 mph
7 mph
0300
21°F
SE
4 mph
4 mph
0600
19°F
S
3 mph
3 mph
0900
23°F
E
2 mph
2 mph
1200
34°F
NE
2 mph
2 mph
1500
41°F
N
7 mph
7 mph
1800
39°F
N
6 mph
6 mph
