Average temperature in October is 16.8 °C
Average daytime temperature is 22.2 °C
Average night temperature is 12.7 °C
Absolute maximum temperature: 27.5 °C
Absolute minimum temperature: 7.5 °C
Number of sunny days: 21
Number of rainy days: 10
Number of snow days:
Precipitation sum: 60 mm
* Weather data for Portsmouth United States is based on climate observations for 2023 year
| October (°C) | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum temperature | 24 | 24.9 | 24.7 | 24.1 | 25.9 | 25.9 | 22.6 | 18.3 | 19.7 | 22.6 | 21.9 | 21.9 | 21.8 | 20.3 | 18.9 | 16.4 | 18 | 18.6 | 20.9 | 22.8 | 20.1 | 20.7 | 15.6 | 19.8 | 23.5 | 25.4 | 26.1 | 26.9 | 27.5 | 27.3 | 21.5 |
| Apparent max temperature | 23.5 | 26.4 | 26.7 | 26.1 | 27.5 | 28.7 | 24.2 | 16.1 | 16.8 | 21.1 | 21.8 | 22.4 | 21.8 | 21.2 | 20.5 | 12.1 | 15.7 | 18.4 | 19.9 | 21.5 | 16.8 | 16.5 | 13.2 | 20.4 | 24 | 26.9 | 26.2 | 29.2 | 28.6 | 26.7 | 22.6 |
| Mean temperature | 19.7 | 20 | 20 | 18.8 | 21 | 21.4 | 19.4 | 14.3 | 12.8 | 16.1 | 17.7 | 16.8 | 16.5 | 16.9 | 15.5 | 12.5 | 13.7 | 13.5 | 14.1 | 17.7 | 15.7 | 15.4 | 12.4 | 12 | 15 | 17.8 | 18.6 | 20.8 | 20.6 | 21.2 | 13.8 |
| Apparent mean temperature | 16.5 | 17 | 16.7 | 14.2 | 17.9 | 18.4 | 16 | 6.5 | 4.7 | 9.6 | 12.8 | 13.3 | 12.3 | 13 | 8.8 | 7 | 7.8 | 7.3 | 7.7 | 14.5 | 8.2 | 8.7 | 4.5 | 5.8 | 8 | 12.3 | 13 | 15.9 | 17.1 | 16.5 | 7.7 |
| Minimum temperature | 16.6 | 16.5 | 16.3 | 14.2 | 16.9 | 17.3 | 16.7 | 9.5 | 7.5 | 11.3 | 13.3 | 13.9 | 12.4 | 13.4 | 12.3 | 9.4 | 9.7 | 9.2 | 9.2 | 14.2 | 11.3 | 10.8 | 8.5 | 7.7 | 9.4 | 12.7 | 13.3 | 16 | 16.4 | 16.8 | 11.6 |
| Apparent min temperature | 19.9 | 20.6 | 21.1 | 20 | 22.7 | 23.7 | 20.1 | 11 | 10.1 | 14.4 | 17.4 | 16.7 | 16.4 | 17.3 | 13.1 | 9.8 | 11.8 | 12.3 | 12.7 | 17.3 | 13.2 | 12.4 | 9.2 | 11.3 | 14.7 | 18.1 | 18.8 | 21.6 | 21.8 | 21.3 | 10.9 |
| October | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight duration (h) | 11.8 | 11.8 | 11.7 | 11.7 | 11.7 | 11.6 | 11.6 | 11.6 | 11.5 | 11.5 | 11.4 | 11.4 | 11.4 | 11.3 | 11.3 | 11.2 | 11.2 | 11.2 | 11.1 | 11.1 | 11.1 | 11 | 11 | 10.9 | 10.9 | 10.9 | 10.8 | 10.8 | 10.8 | 10.7 | 10.7 |
| Sunshine duration (h) | 11 | 10.9 | 10.8 | 9.6 | 10.6 | 7.5 | 8.6 | 10.5 | 10.5 | 10.2 | 8.6 | 6 | 10 | 1 | 6 | 9.3 | 7.7 | 10.2 | 8.5 | 8.9 | 9.8 | 10 | 10 | 9.9 | 9.8 | 9.8 | 9.8 | 9.8 | 9.8 | 9.7 | 0 |
| Precipitation (mm) | 0 | 0 | 0 | 0 | 1.8 | 0.3 | 0.1 | 0 | 0 | 0 | 0 | 0 | 0 | 48 | 2.3 | 0 | 0 | 0.1 | 0 | 0.2 | 3.7 | 0.4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3.2 |
| Precipitation hours | 0 | 0 | 0 | 0 | 8 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 11 | 6 | 0 | 0 | 1 | 0 | 2 | 8 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 11 |
| Wind speed (m/s) | 19.5 | 16.4 | 11.2 | 11.2 | 15.5 | 10 | 26 | 21 | 16.3 | 16.1 | 10 | 10.4 | 12.4 | 18.4 | 24.3 | 21.1 | 16.7 | 10.7 | 15 | 15.6 | 28.1 | 28 | 19.1 | 8.3 | 10.1 | 10.2 | 13.4 | 12.5 | 13.8 | 20.7 | 26.5 |
In October 2023, the highest daytime temperature in Portsmouth was 27.5°C.
While the minimum temperature at night dropped to 7.5°C.
The average nighttime and daytime temperatures during October in Portsmouth are 12.7°C and 22.2°C respectively.
The precipitation sum in October is about 60 mm.