Best year time to visit Portsmouth

General weather information about Portsmouth

Average annual temperature is 26.1 °C

Absolute maximum temperature: 33.8 °C

Absolute minimum temperature: 20.4 °C

Number of sunny days: 46

Number of rainy days: 319

Number of snow days:

Average annual precipitation: 1287 mm

Look at detailed online map of Portsmouth

* Weather data for Portsmouth Dominica is based on climate observations for 2023 year

Portsmouth air temperature forecast for each month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Absolute maximum temperature (°C) 27.1 26.8 28.9 30.1 30.2 31.6 30.9 32.3 33.8 32.1 30.6 28.4
Average daytime temperature (°C) 26.1 25.6 26.6 27.5 29.5 29.7 29.3 30.1 31.4 29.9 29.2 27.2
Average temperature (°C) 24.1 23.6 24.2 25 26.8 27.3 27 27.5 28.3 27.5 26.7 25.2
Average night temperature (°C) 22.4 21.8 22.2 23 24.8 25.2 25.1 25.4 26 25.7 24.9 23.7
Absolute minimum temperature (°C) 20.6 20.6 20.4 21.5 22.8 23.6 23.8 24.3 24.6 24.8 22.9 22

Portsmouth monthly weather indicators

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daylight maximum duration (h) 11.5 11.8 12.3 12.7 13 13.1 13 12.8 12.4 12 11.6 11.3
Daylight mean duration (h) 11.3 11.6 12.1 12.5 12.9 13 13 12.6 12.2 11.8 11.4 11.2
Daylight minimum duration (h) 11.2 11.5 11.8 12.3 12.7 13 12.8 12.4 12 11.6 11.3 11.2
Sunshine mean duration (h) 10.4 10.7 11 11.6 11.5 11.2 10.7 11.2 11 9.4 10.4 10
Precipitation (mm) 91 150 100 76 26 90 170 122 63 192 69 137
Sunny days 1 2 9 9 3 3 2 5 6 6
Rainy days 30 26 22 30 22 27 31 28 28 26 24 25

Portsmouth - weather forecast by months

January February March April May June July August September October November December

Best time to visit Portsmouth:

The largest precipitation sum in Portsmouth is at

  • February — 150(mm)
  • July — 170(mm)
  • October — 192(mm)
  • December — 137(mm)

Weather forecast in the closest to Portsmouth admin centers