Herval monthly weather averages
Average daytime temperature
The bar chart below shows the average monthly peak daytime temperatures at Herval
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 29 | 28.2 | 26.7 | 23.1 | 19.6 | 17 | 16.7 | 17.7 | 19.2 | 21.9 | 24.5 | 27.3 |
| °F | 84.1 | 82.8 | 80.1 | 73.7 | 67.3 | 62.6 | 62.1 | 63.8 | 66.6 | 71.5 | 76.2 | 81.2 |
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.
Average rainfall & rainy days
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 | 110 | 121 | 111 | 102 | 104 | 125 | 122 | 122 | 130 | 111 | 85 | 76 |
| inches | 4.3 | 4.8 | 4.4 | 4 | 4.1 | 4.9 | 4.8 | 4.8 | 5.1 | 4.4 | 3.3 | 3 |
| Rainy days | 13 | 13 | 12 | 9 | 11 | 12 | 13 | 13 | 13 | 12 | 12 | 11 |
Average annual rainfall in Herval: 1233.6mm (485.7 inches)
Average daily sunshine
The bar chart below shows the average daily sunshine hours in Herval
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hrs sunshine | 8.8 | 7.7 | 7.3 | 6.6 | 6 | 4.9 | 5.1 | 5.4 | 5.7 | 7.2 | 8.2 | 9.3 |
Day / night temperatures
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 | 17.6 | 18 | 15 | 12.8 | 11.2 | 7.4 | 7.7 | 8.3 | 10 | 11.2 | 14 | 15.6 |
| Max °C | 29.3 | 28.5 | 27 | 23.4 | 19.8 | 17.3 | 17 | 17.9 | 19.5 | 22.2 | 24.8 | 27.6 |
| Min °F | 63.6 | 64.3 | 59 | 55 | 52.2 | 45.2 | 45.8 | 46.9 | 49.9 | 52.2 | 57.2 | 60.1 |
| Max °F | 74.1 | 73.8 | 69.8 | 64.6 | 59.9 | 54.1 | 54.1 | 55.6 | 58.5 | 62.1 | 66.9 | 70.9 |
Sea temperature
The graph below shows the average sea temperature.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 23.4 | 23.9 | 23.3 | 21.1 | 18.1 | 15.5 | 13.5 | 13.2 | 14.3 | 16.6 | 19.1 | 21.5 |
| °F | 74.1 | 75 | 74 | 70 | 64.7 | 59.8 | 56.3 | 55.8 | 57.7 | 61.9 | 66.3 | 70.8 |
Wind speed
The graph below shows the average wind speed.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| km/h | 13 | 12 | 10 | 10 | 9 | 11 | 10 | 12 | 13 | 14 | 14 | 13 |
| mph | 8 | 8 | 7 | 6 | 6 | 7 | 7 | 7 | 8 | 9 | 9 | 8 |
A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.
Relative humidity
The graph below shows the average relative humidity.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 69% | 72% | 76% | 76% | 76% | 82% | 81% | 79% | 78% | 76% | 72% | 72% |
Other monthly averages
Herval weather stats
| Hottest month: | January | 29°C 84.2°F |
|---|---|---|
| Driest month: | December | 76mm 3ins |
| Sunniest month: | December | 9.3hrs |
| Coldest month: | June | 17°C 62.6°F |
| Wettest month: | September | 130mm 5.1ins |
| Warmest sea: | February | 23.9°C 75°F |
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