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 days

Number of rainy days: 310 days

Look at detailed online map of Jamestown

* Weather data for Jamestown Saint Helena is based on climate observations for 2026 year

Jamestown air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)23.624.624.424.223.422.122.821.722.022.225.525.0
Average daytime temperature (°C)22.923.723.823.422.621.321.420.720.421.023.224.2
Average temperature (°C)22.423.123.222.822.020.519.519.018.619.220.922.0
Average night temperature (°C)21.822.422.422.121.219.617.917.617.217.719.020.3
Absolute minimum temperature (°C)20.920.721.020.719.517.215.515.616.216.017.219.3

Jamestown monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)13.012.012.011.011.011.011.011.012.012.012.013.0
Daylight mean duration (h)12.912.612.211.711.411.211.311.612.012.512.913.1
Daylight minimum duration (h)12.012.011.011.011.011.011.011.011.012.012.012.0
Sunshine mean duration (h)11.611.610.910.710.010.19.89.09.59.811.011.5
Precipitation (mm)171628122229473043392569
Sunny days572774733460
Rainy days262129232426242827272431
Snow days000000000000

Jamestown - weather forecast by months

Jamestown weather in januaryJamestown weather in februaryJamestown weather in marchJamestown weather in aprilJamestown weather in mayJamestown weather in juneJamestown weather in julyJamestown weather in augustJamestown weather in septemberJamestown weather in octoberJamestown weather in novemberJamestown weather in december

Best time to visit Jamestown:

The largest precipitation sum in Jamestown is at

  • July — 47(mm)
  • September — 43(mm)
  • December — 69(mm)

    • Weather forecast in the closest to Jamestown admin centers

    Weather forecast in the closest towns to Jamestown