08.25
tue
tue
DAY
82°F
E 9 mph
precip
3%
3%
NIGHT
68°F
E 7 mph
precip
6%
6%
08.26
wed
wed
DAY
76°F
SW 1 mph
precip
3%
3%
NIGHT
70°F
SE 2 mph
precip
13%
13%
08.27
thu
thu
DAY
78°F
NW 9 mph
precip
9%
9%
NIGHT
70°F
N 9 mph
precip
20%
20%
08.28
fri
fri
DAY
76°F
NW 7 mph
precip
19%
19%
NIGHT
68°F
SE 7 mph
precip
31%
31%
08.29
sat
sat
DAY
74°F
NW 2 mph
precip
2%
2%
NIGHT
60°F
NE 4 mph
precip
14%
14%
08.30
sun
sun
DAY
76°F
N 6 mph
precip
10%
10%
NIGHT
66°F
NE 9 mph
precip
37%
37%
08.31
mon
mon
DAY
74°F
W 7 mph
precip
11%
11%
NIGHT
64°F
SW 4 mph
precip
24%
24%
09.01
tue
tue
DAY
66°F
W 9 mph
precip
19%
19%
NIGHT
62°F
SW 19 mph
precip
50%
50%
09.02
wed
wed
DAY
58°F
S 11 mph
precip
29%
29%
NIGHT
56°F
NE 7 mph
precip
27%
27%
09.03
thu
thu
DAY
62°F
SW 9 mph
precip
44%
44%
NIGHT
60°F
SW 9 mph
precip
44%
44%
09.04
fri
fri
DAY
64°F
S 10 mph
precip
28%
28%
NIGHT
60°F
E 11 mph
precip
19%
19%
09.05
sat
sat
DAY
70°F
E 6 mph
precip
14%
14%
NIGHT
58°F
S 7 mph
precip
35%
35%
09.06
sun
sun
DAY
54°F
SE 6 mph
precip
36%
36%
NIGHT
56°F
SW 6 mph
precip
19%
19%
09.07
mon
mon
DAY
60°F
SW 8 mph
precip
12%
12%
NIGHT
58°F
SW 11 mph
precip
18%
18%
Sea water
temperature
temperature
| Portsmouth |
Weather in
August
August
| Portsmouth |
7 day weather
forecast
forecast
| Portsmouth |
10 day weather
forecast
forecast
| Portsmouth |
14 day weather
forecast
forecast
| Portsmouth |
Monthly weather
averages
averages
| Portsmouth |
Current Weather
Conditions
Conditions
| Portsmouth |
When is the Best
Time to Visit?
Time to Visit?
| Portsmouth |
Portsmouth Sea Water Temperature in August, °F
The average sea surface temperature in August 2026 for Portsmouth was 69.0°F. The maximum and minimum values were 66.0°F and 74.6°F respectively.
Portsmouth on the Weather Map
USA Resorts:
NAME
F°
| Boston |  |
+80 |
| Chicago |  |
+80 |
| Hawaii |  |
+84 |
| Houston | |
+106 |
| Las Vegas |  |
+116 |
| Los Angeles | |
+96 |
| Maui | |
+70 |
| Miami | |
+92 |
| Myrtle Beach | |
+84 |
| New York | |
+82 |
| San Diego | |
+96 |
| San Francisco | |
+64 |
| Santa Monica | |
+86 |
| Sarasota | |
+92 |
| Washington | |
+84 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Portsmouth
Local time: 17:37
25 aug, tuesday
| 1800 | |
86°F | E 7 mph |
| 2100 | |
74°F | E 7 mph |
26 aug, wednesday
| 0000 | |
68°F | E 7 mph |
| 0300 | |
62°F | SE 7 mph |
| 0600 | |
60°F | SE 7 mph |
| 0900 | |
68°F | SE 6 mph |
| 1200 | |
76°F | SW 1 mph |
| 1500 | |
76°F | NW 11 mph |