Portsmouth Weather: October
 |
Average Day Temperature: | 61.3°F |
|
Average Night Temperature: | 49.2°F |
|
Sea Water Temperature: | 58.2°F |
|
Number of Sunny Days: | 14 days |
| Sunshine Hours: | 10.3 - 11.7 hours | |
|
Number of Rainy Days: | 2 days |
| Precipitation Totals: | 1.1 in | |
| detailed information | ||
14 day weather
forecast
forecast
| Portsmouth |
Sea Water
Temperature
Temperature
| Portsmouth |
Air Temperature in October, °F
The highest day temperature in October 2025 was 90°F. The lowest night temperature was 33°F. The average values for day and night temperatures during October were 63.3°F и 46.5°F respectivly.
Portsmouth Water Sea Temperature in October, °F
The average sea surface temperature in October 2025 for Portsmouth was 58.9°F. The maximum and minimum values were 55.4°F and 64.6°F respectively.
Sunny, Cloudy and Gloomy days
Most of the days in October are sunny but you can also expect cloudy and gloomy days.
Precipitation Totals in October, in
Precipitation total in October for Portsmouth is 1.1 in.
Wind Speed in October, mph
The average wind speed in October is 7.8 mph.
Average Sunny Hours Per Day
We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Portsmouth in October is 6.4 hours.
Portsmouth on the Weather Map
USA Resorts:
NAME
F°
| Chicago |  |
0 |
| Hawaii |  |
+78 |
| Honolulu | |
+78 |
| Houston | |
+46 |
| Las Vegas |  |
+40 |
| Los Angeles | |
+52 |
| Maui | |
+72 |
| Miami | |
+72 |
| Miami Beach | |
+80 |
| New York | |
+18 |
| San Diego | |
+54 |
| San Francisco | |
+46 |
| Sarasota | |
+62 |
| Tampa | |
+62 |
| Washington | |
+28 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Portsmouth
Local time: 02:24
05 dec, friday
| 0300 |  |
6°F | SE 11 mph |
| 0600 | |
4°F | E 6 mph |
| 0900 |  |
8°F | E 6 mph |
| 1200 | |
16°F | NE 7 mph |
| 1500 | |
22°F | NE 10 mph |
| 1800 |  |
22°F | NE 6 mph |
| 2100 | |
18°F | NE 6 mph |
06 dec, saturday
| 0000 | |
16°F | NE 6 mph |