Álftanes monthly weather averages
Average daytime temperature
The bar chart below shows the average monthly peak daytime temperatures at Álftanes
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 1.2 | 2.1 | 2.4 | 5 | 8.7 | 11.2 | 12.7 | 12.4 | 9.3 | 6 | 2.8 | 1.6 |
| °F | 34.1 | 35.8 | 36.4 | 41 | 47.6 | 52.1 | 54.8 | 54.3 | 48.7 | 42.9 | 37 | 34.8 |
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 | 99 | 97 | 98 | 75 | 61 | 67 | 65 | 84 | 87 | 115 | 98 | 101 |
| inches | 3.9 | 3.8 | 3.9 | 3 | 2.4 | 2.6 | 2.6 | 3.3 | 3.4 | 4.5 | 3.8 | 4 |
| Rainy days | 19 | 18 | 19 | 18 | 16 | 18 | 17 | 18 | 18 | 20 | 18 | 20 |
Average annual rainfall in Álftanes: 1089.6mm (429 inches)
Average daily sunshine
The bar chart below shows the average daily sunshine hours in Álftanes
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hrs sunshine | 0.9 | 1.8 | 3.4 | 4.8 | 3.1 | 0 | 3.1 | 5.6 | 4.3 | 2.8 | 1.5 | 0.6 |
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 | -3.5 | -2.6 | -2.6 | -0.2 | 3 | 6.1 | 7.6 | 7.3 | 4.4 | 1.7 | -1.7 | -3.3 |
| Max °C | 1.3 | 2.2 | 2.6 | 5.2 | 8.8 | 11.3 | 12.8 | 12.5 | 9.4 | 6.2 | 2.9 | 1.7 |
| Min °F | 25.7 | 27.3 | 27.4 | 31.7 | 37.4 | 43 | 45.7 | 45.1 | 39.9 | 35 | 28.9 | 26.1 |
| Max °F | 30 | 31.6 | 32 | 36.5 | 42.6 | 47.7 | 50.4 | 49.8 | 44.4 | 39 | 33.1 | 30.6 |
Sea temperature
The graph below shows the average sea temperature.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 5.8 | 5.5 | 5.3 | 5.5 | 6.5 | 8.5 | 10 | 10.6 | 9.5 | 8.1 | 7.1 | 6.4 |
| °F | 42.5 | 42 | 41.6 | 41.8 | 43.8 | 47.2 | 50 | 51 | 49.1 | 46.7 | 44.7 | 43.5 |
Wind speed
The graph below shows the average wind speed.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| km/h | 24 | 25 | 24 | 22 | 19 | 18 | 17 | 18 | 20 | 21 | 22 | 24 |
| mph | 15 | 16 | 15 | 14 | 12 | 11 | 11 | 11 | 12 | 13 | 14 | 15 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 81% | 81% | 79% | 80% | 78% | 81% | 82% | 82% | 81% | 82% | 81% | 81% |
Other monthly averages
Álftanes weather stats
| Hottest month: | July | 12.7°C 54.9°F |
|---|---|---|
| Driest month: | May | 61mm 2.4ins |
| Sunniest month: | May | 3.1hrs |
| Coldest month: | January | 1.2°C 34.2°F |
| Wettest month: | October | 115mm 4.5ins |
| Warmest sea: | August | 10.6°C 51.1°F |
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