The bar chart below shows the average monthly peak daytime temperatures at Helensburgh
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
°C | 4.5 | 4.5 | 6.5 | 9.5 | 12.9 | 15.7 | 16.7 | 16.4 | 13.8 | 10.9 | 6.9 | 5.3 |
°F | 40.2 | 40.1 | 43.7 | 49 | 55.2 | 60.2 | 62 | 61.6 | 56.8 | 51.6 | 44.5 | 41.6 |
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 | 296 | 197 | 232 | 129 | 146 | 136 | 155 | 195 | 264 | 288 | 265 | 283 |
inches | 11.7 | 7.8 | 9.1 | 5.1 | 5.7 | 5.4 | 6.1 | 7.7 | 10.4 | 11.3 | 10.4 | 11.1 |
Rainy days | 23 | 18 | 21 | 17 | 18 | 17 | 18 | 19 | 22 | 22 | 22 | 23 |
Average annual rainfall in Helensburgh: 2637.433mm (1038.4 inches)
The bar chart below shows the average daily sunshine hours in Helensburgh
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Hrs sunshine | 1.3 | 2.4 | 3.2 | 5.2 | 5.9 | 6 | 5.4 | 4.9 | 3.7 | 2.6 | 1.8 | 1.2 |
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 | -0.1 | -0.4 | 0.8 | 2.2 | 4.9 | 7.8 | 9.4 | 9.2 | 7.7 | 5.6 | 2 | 0.8 |
Max °C | 4.7 | 4.6 | 6.7 | 9.7 | 13.1 | 15.9 | 16.9 | 16.6 | 14 | 11 | 7.1 | 5.5 |
Min °F | 31.9 | 31.3 | 33.4 | 35.9 | 40.8 | 46 | 48.8 | 48.6 | 45.8 | 42.1 | 35.5 | 33.4 |
Max °F | 36.1 | 35.8 | 38.7 | 42.6 | 48.2 | 53.2 | 55.6 | 55.2 | 51.4 | 46.9 | 40.1 | 37.6 |
The graph below shows the average sea temperature.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
°C | 8.3 | 7.4 | 7.2 | 8 | 9.6 | 11.7 | 13.4 | 14.2 | 13.8 | 12.9 | 11.5 | 9.8 |
°F | 46.9 | 45.3 | 45 | 46.3 | 49.3 | 53.1 | 56.2 | 57.6 | 56.9 | 55.3 | 52.6 | 49.6 |
The graph below shows the average wind speed.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
km/h | 19 | 18 | 20 | 17 | 16 | 16 | 16 | 15 | 17 | 18 | 18 | 19 |
mph | 12 | 11 | 12 | 11 | 10 | 10 | 10 | 9 | 10 | 11 | 11 | 12 |
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 |
---|---|---|---|---|---|---|---|---|---|---|---|
92% | 89% | 86% | 82% | 79% | 81% | 83% | 85% | 87% | 89% | 91% | 92% |
Hottest month: | July | 16.7°C 62.1°F |
---|---|---|
Driest month: | April | 129mm 5.1ins |
Sunniest month: | April | 5.2hrs |
Coldest month: | February | 4.5°C 40.1°F |
Wettest month: | January | 296mm 11.7ins |
Warmest sea: | August | 14.2°C 57.6°F |