The bar chart below shows the average monthly peak daytime temperatures at Jamestown
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
°C | 29.6 | 29.5 | 26.5 | 21.8 | 16.7 | 13.8 | 12.9 | 14 | 17 | 21.1 | 24.8 | 27.4 |
°F | 85.3 | 85 | 79.7 | 71.2 | 62 | 56.8 | 55.1 | 57.3 | 62.7 | 70.1 | 76.6 | 81.3 |
Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. To see the daily range of temperatures have a look at the temperature max / min chart below.
The graph below shows the average rainfall and number of rainy days per month.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
mm | 20 | 20 | 20 | 36 | 59 | 62 | 73 | 66 | 63 | 54 | 39 | 24 |
inches | 0.8 | 0.8 | 0.8 | 1.4 | 2.3 | 2.5 | 2.9 | 2.6 | 2.5 | 2.1 | 1.5 | 1 |
Rainy days | 7 | 6 | 6 | 6 | 8 | 8 | 9 | 9 | 8 | 9 | 7 | 7 |
Average annual rainfall in Jamestown: 641.933mm (252.7 inches)
The bar chart below shows the average daily sunshine hours in Jamestown
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Hrs sunshine | 10.9 | 10.4 | 9.3 | 7.9 | 6.1 | 5.7 | 5.8 | 6.7 | 7.5 | 8.8 | 9.8 | 10.3 |
The graph below shows the daily range of temperatures for each month.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Min °C | 13.6 | 14 | 11.4 | 8.1 | 5.1 | 3.2 | 2.9 | 2.9 | 4.5 | 6.5 | 9.3 | 11.6 |
Max °C | 30 | 29.9 | 26.9 | 22.1 | 17 | 14.1 | 13.1 | 14.3 | 17.4 | 21.5 | 25.2 | 27.8 |
Min °F | 56.5 | 57.1 | 52.4 | 46.6 | 41.1 | 37.7 | 37.2 | 37.2 | 40 | 43.7 | 48.7 | 52.9 |
Max °F | 71.2 | 71.4 | 66.4 | 59.2 | 51.8 | 47.5 | 46.4 | 47.5 | 51.6 | 57.2 | 63 | 67.5 |
The graph below shows the average sea temperature.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
°C | 20.3 | 20.8 | 20.3 | 19.3 | 18 | 16.6 | 15.4 | 14.7 | 14.9 | 15.9 | 17.3 | 18.9 |
°F | 68.6 | 69.5 | 68.6 | 66.7 | 64.5 | 61.9 | 59.7 | 58.4 | 58.8 | 60.7 | 63.2 | 66.1 |
The graph below shows the average wind speed.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
km/h | 13 | 12 | 12 | 11 | 9 | 9 | 11 | 12 | 13 | 14 | 14 | 14 |
mph | 8 | 7 | 8 | 7 | 6 | 6 | 7 | 7 | 8 | 9 | 9 | 9 |
A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.
The graph below shows the average relative humidity.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
---|---|---|---|---|---|---|---|---|---|---|---|
36% | 38% | 42% | 49% | 62% | 69% | 69% | 62% | 53% | 44% | 38% | 36% |
Hottest month: | February | 29.5°C 85.1°F |
---|---|---|
Driest month: | February | 20mm 0.8ins |
Sunniest month: | February | 10.4hrs |
Coldest month: | July | 12.9°C 55.2°F |
Wettest month: | July | 73mm 2.9ins |
Warmest sea: | February | 20.8°C 69.4°F |