Current Sea Water Temperature:
+42.4°F
| Maximum Sea Water Temperature in April: | 47.2°F |
| Minimum Sea Water Temperature in April: | 38.8°F |
| Average water temperature in April: | 42.2°F |
| detailed information | |
Sea Water Temperature for the Last 10 Days:
| April 28 | 42.4°F | April 23 | 42.6°F |
| April 27 | 43.0°F | April 22 | 43.4°F |
| April 26 | 43.0°F | April 21 | 45.2°F |
| April 25 | 43.0°F | April 20 | 44.2°F |
| April 24 | 44.2°F | April 19 | 44.0°F |
When is the Warmest Sea for Portsmouth?
According to our data for the last three years for Portsmouth the highest average sea water temperature was in August, July and September.
Average Water Temperature by Month, °F
Sea Water Temperature in August
The average sea surface temperature in August 2023 for Portsmouth was 64.1°F. The maximum and minimum values were 61.4°F and 67.2°F respectively.
Sea Water Temperature in July
The average sea surface temperature in July 2023 for Portsmouth was 68.3°F. The maximum and minimum values were 64.8°F and 71.4°F respectively.
Sea Water Temperature in September
The average sea surface temperature in September 2023 for Portsmouth was 65.1°F. The maximum and minimum values were 59.4°F and 70.8°F respectively.
USA Resorts:
NAME
F°
| Boston |  |
+72 |
| Chicago | |
+70 |
| Hawaii |  |
+78 |
| Honolulu | |
+78 |
| Houston |  |
+86 |
| Las Vegas |  |
+76 |
| Los Angeles | |
+74 |
| Miami | |
+80 |
| New York | |
+70 |
| Orlando |  |
+86 |
| San Diego | |
+68 |
| San Francisco | |
+62 |
| Sarasota | |
+88 |
| Tampa | |
+90 |
| Washington | |
+86 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Portsmouth
Local time: 14:35
28 apr, sunday
| 1500 |  |
66°F | N 7 mph |
| 1800 |  |
62°F | NW 6 mph |
| 2100 |  |
60°F | E 5 mph |
29 apr, monday
| 0000 |  |
60°F | E 8 mph |
| 0300 | |
58°F | SE 8 mph |
| 0600 | |
56°F | SE 6 mph |
| 0900 |  |
56°F | S 4 mph |
| 1200 |  |
62°F | W 3 mph |