Decs monthly weather averages
Average daytime temperature
The bar chart below shows the average monthly peak daytime temperatures at Decs
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 1.8 | 5.2 | 11 | 16.7 | 21.7 | 24.7 | 27 | 26.5 | 22.9 | 17 | 9.1 | 3.8 |
| °F | 35.3 | 41.3 | 51.8 | 62.1 | 71 | 76.5 | 80.5 | 79.6 | 73.2 | 62.6 | 48.4 | 38.8 |
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 | 36 | 33 | 33 | 46 | 56 | 75 | 58 | 54 | 43 | 37 | 52 | 45 |
| inches | 1.4 | 1.3 | 1.3 | 1.8 | 2.2 | 3 | 2.3 | 2.1 | 1.7 | 1.4 | 2 | 1.8 |
| Rainy days | 11 | 11 | 11 | 12 | 13 | 14 | 12 | 11 | 9 | 9 | 12 | 12 |
Average annual rainfall in Decs: 631.6mm (248.7 inches)
Average daily sunshine
The bar chart below shows the average daily sunshine hours in Decs
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hrs sunshine | 2.2 | 3.4 | 4.9 | 6.5 | 7.9 | 8.9 | 9.7 | 9 | 7.3 | 5.7 | 2.8 | 2 |
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 | -4 | -1.6 | 1.8 | 6.3 | 10.9 | 14 | 15.4 | 14.9 | 11.7 | 6.8 | 2.3 | -1.5 |
| Max °C | 2 | 5.4 | 11.2 | 17 | 22 | 25 | 27.3 | 26.8 | 23.2 | 17.3 | 9.3 | 3.9 |
| Min °F | 24.9 | 29.2 | 35.2 | 43.3 | 51.5 | 57.2 | 59.6 | 58.7 | 53 | 44.2 | 36.1 | 29.3 |
| Max °F | 30.2 | 35.4 | 43.7 | 52.9 | 61.5 | 67.1 | 70.3 | 69.4 | 63.3 | 53.6 | 42.4 | 34.2 |
Sea temperature
The graph below shows the average sea temperature.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 10.7 | 10 | 10.1 | 11.5 | 15 | 19.4 | 22.4 | 23.4 | 21.1 | 17.8 | 14.6 | 12.3 |
| °F | 51.3 | 49.9 | 50.2 | 52.7 | 59 | 66.8 | 72.4 | 74.1 | 70 | 64.1 | 58.3 | 54.1 |
Wind speed
The graph below shows the average wind speed.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| km/h | 10 | 11 | 12 | 11 | 10 | 9 | 9 | 8 | 8 | 8 | 9 | 10 |
| mph | 6 | 7 | 7 | 7 | 6 | 6 | 6 | 5 | 5 | 5 | 6 | 6 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 85% | 81% | 74% | 67% | 68% | 69% | 67% | 68% | 72% | 76% | 84% | 86% |
Other monthly averages
Decs weather stats
| Hottest month: | July | 27°C 80.6°F |
|---|---|---|
| Driest month: | February | 33mm 1.3ins |
| Sunniest month: | August | 9hrs |
| Coldest month: | January | 1.8°C 35.2°F |
| Wettest month: | June | 75mm 3ins |
| Warmest sea: | August | 23.4°C 74.1°F |
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