Best year time to visit Jamestown

General weather information about Jamestown

Average annual temperature is 21.1 °C

Absolute maximum temperature: 25.5 °C

Absolute minimum temperature: 15.5 °C

Number of sunny days: 55

Number of rainy days: 310

Number of snow days:

Average annual precipitation: 382 mm

Look at detailed online map of Jamestown

* Weather data for Jamestown Saint Helena is based on climate observations for 2023 year

Jamestown air temperature forecast for each month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Absolute maximum temperature (°C) 23.6 24.6 24.4 24.2 23.4 22.1 22.8 21.7 22 22.2 25.5 25
Average daytime temperature (°C) 22.9 23.7 23.8 23.4 22.6 21.3 21.4 20.7 20.4 21 23.2 24.2
Average temperature (°C) 22.4 23.1 23.2 22.8 22 20.5 19.5 19 18.6 19.2 20.9 22
Average night temperature (°C) 21.8 22.4 22.4 22.1 21.2 19.6 17.9 17.6 17.2 17.7 19 20.3
Absolute minimum temperature (°C) 20.9 20.7 21 20.7 19.5 17.2 15.5 15.6 16.2 16 17.2 19.3

Jamestown monthly weather indicators

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daylight maximum duration (h) 13.1 12.8 12.4 12 11.5 11.2 11.4 11.8 12.2 12.7 13 13.1
Daylight mean duration (h) 13 12.6 12.2 11.7 11.4 11.2 11.3 11.6 12 12.5 12.9 13.1
Daylight minimum duration (h) 12.8 12.4 12 11.6 11.3 11.2 11.2 11.4 11.8 12.2 12.7 13
Sunshine mean duration (h) 11.6 11.6 10.9 10.7 10.1 10.1 9.8 9 9.5 9.8 11 11.5
Precipitation (mm) 18 17 28 12 22 29 48 30 43 39 26 69
Sunny days 5 7 2 7 7 4 7 3 3 4 6
Rainy days 26 21 29 23 24 26 24 28 27 27 24 31

Jamestown - weather forecast by months

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

Best time to visit Jamestown:

The largest precipitation sum in Jamestown is at

  • July — 48(mm)
  • September — 43(mm)
  • December — 69(mm)

Weather forecast in the closest to Jamestown admin centers