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 | 5.6 | 8.2 | 13.9 | 19.5 | 23.7 | 27.6 | 29.3 | 28.8 | 25.6 | 20 | 13.9 | 8 |
°F | 42.2 | 46.7 | 57 | 67.1 | 74.7 | 81.7 | 84.7 | 83.9 | 78.1 | 67.9 | 57 | 46.5 |
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 | 125 | 114 | 136 | 111 | 125 | 120 | 133 | 103 | 100 | 78 | 108 | 120 |
inches | 4.9 | 4.5 | 5.4 | 4.4 | 4.9 | 4.7 | 5.2 | 4 | 4 | 3.1 | 4.2 | 4.7 |
Rainy days | 12 | 11 | 13 | 11 | 12 | 10 | 12 | 10 | 9 | 8 | 11 | 12 |
Average annual rainfall in Jamestown: 1323.3mm (521 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 | 4.8 | 5.5 | 6.6 | 8.2 | 9.1 | 9.6 | 9.3 | 8.9 | 7.9 | 7.3 | 5.2 | 4.3 |
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 | -4.9 | -3.3 | 2 | 6.6 | 11 | 15.1 | 17.5 | 16.9 | 13.1 | 6.3 | 2.1 | -2.5 |
Max °C | 5.9 | 8.5 | 14.2 | 19.8 | 24.1 | 27.9 | 29.6 | 29.1 | 25.9 | 20.3 | 14.2 | 8.3 |
Min °F | 23.2 | 26.2 | 35.6 | 43.9 | 51.7 | 59.2 | 63.4 | 62.4 | 55.6 | 43.3 | 35.7 | 27.5 |
Max °F | 32.9 | 36.7 | 46.6 | 55.8 | 63.5 | 70.7 | 74.3 | 73.4 | 67.1 | 55.9 | 46.6 | 37.2 |
The graph below shows the average sea temperature.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
°C | 10.8 | 10 | 10.3 | 12.1 | 15.8 | 20.8 | 24.8 | 25.8 | 24.1 | 20 | 15.8 | 12.7 |
°F | 51.5 | 50 | 50.5 | 53.9 | 60.5 | 69.4 | 76.6 | 78.4 | 75.4 | 67.9 | 60.4 | 54.9 |
The graph below shows the average wind speed.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
km/h | 14 | 15 | 16 | 15 | 12 | 11 | 10 | 10 | 10 | 11 | 13 | 14 |
mph | 9 | 9 | 10 | 9 | 8 | 7 | 7 | 6 | 6 | 7 | 8 | 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 |
---|---|---|---|---|---|---|---|---|---|---|---|
72% | 69% | 65% | 63% | 70% | 72% | 75% | 75% | 76% | 72% | 72% | 73% |
Hottest month: | July | 29.3°C 84.7°F |
---|---|---|
Driest month: | October | 78mm 3.1ins |
Sunniest month: | June | 9.6hrs |
Coldest month: | January | 5.6°C 42.1°F |
Wettest month: | March | 136mm 5.4ins |
Warmest sea: | August | 25.8°C 78.4°F |