Climate of Alderney
Alderney has a oceanic climate. There is rainfall during all months of the year. The average annual temperature for Alderney is 13° degrees and there is about 463 mm of rain in a year. It is dry for 131 days a year with an average humidity of 80% and an UV-index of 4.
Climate averages for the whole year
- Day: the average daily temperature during the day is between 9°C and 18°C
- Night:the average nighttime temperature is between 7°C and 17°C
- Rain: it rains 188 days and there is a total of approximately 463 mm rainfall
- Sun hours: throughout the year there are 2526 sun hours
Maximum temperature: | between 9°C and 18°C |
Warmest month: | 18°C in August |
Coldest month: | 9°C in February |
Night temperature: | between 7°C and 17°C |
Dry days: | 177 days |
Days with rain: | 188 days |
Days with snow: | 0 days |
Total rain sum: | 463 mm |
Hours of sunshine: | 2526 hours |
Temperature graph
This graph shows the average maximum temperature (red) and minimum temperature (blue) for Alderney.
Precipitation graph
This graph shows the average amount of rainfall per month for Alderney.
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Climate table of Alderney
In this climate table you can see at a glance what the average weather per month is for Alderney. The data has been collected over a 30-year period, from which an average per month has been derived. From year to year the differences may be larger or smaller, but with this climate table you have a good idea of what the weather for Alderney might be like in a given month.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Day temp. (°C) | 10 | 9 | 10 | 11 | 13 | 15 | 17 | 18 | 17 | 16 | 13 | 11 |
Night temp. (°C) | 8 | 7 | 8 | 10 | 12 | 14 | 16 | 17 | 16 | 14 | 12 | 10 |
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
Precipitation (mm) | 58 | 41 | 33 | 23 | 21 | 23 | 26 | 34 | 28 | 45 | 71 | 60 |
Days with rain | 22 | 17 | 16 | 13 | 12 | 10 | 13 | 13 | 12 | 17 | 22 | 21 |
Dry days | 9 | 11 | 15 | 17 | 19 | 20 | 18 | 18 | 18 | 14 | 8 | 10 |
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
Sun hours per day | 4 | 4 | 6 | 10 | 9 | 9 | 10 | 9 | 9 | 5 | 4 | 4 |
Wind force (Bft) | 5 | 5 | 5 | 4 | 4 | 4 | 4 | 4 | 4 | 5 | 5 | 5 |
UV-index | 3 | 2 | 3 | 4 | 4 | 4 | 5 | 5 | 5 | 4 | 3 | 3 |
Best time to visit Alderney
To go to Alderney, the best time to visit is in August. In this period you have a pleasant temperature and almost no precipitation. In Alderney, August is the warmest month with 18°C and the most cold month is 9°C in February.
Climate of Alderney by month
What is the average climate in a given month for Alderney? Click on a month to see all monthly averages for sunshine, maximum and minimum temperatures, percent chance of rain per day, snowfall and number of rainy days.












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