The climate of Alderney
The current climate in Alderney features temperatures ranging from a high of 20°C to a low of 10°C throughout the year. The average yearly temperature is around 15°C. At night, temperatures in the colder months average around 6°C and in the warmer months around 15°C.
Average temperatures and precipitation
This chart shows the average monthly maximum and minimum temperatures (in degrees Celsius) and average monthly rainfall (in millimeters) for Alderney.
Temperature records
The highest temperature recorded in Alderney in recent years was 32°C in July 2022. The lowest daytime temperature recorded was -1°C in February 2018.
Rainfall amount
On average, Alderney receives 709 mm of precipitation each year. For comparison, New York gets 1142 mm of precipitation annually.
Best time to visit Alderney?
The best time to visit Alderney for sunny weather is June through September. During this period, you'll have nice temperatures and not too much rain, making it a great time to visit Alderney. In the other months of the year, there's too much rain or the temperature isn't ideal for a visit if you want sunny and pleasant weather.
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Climate Table of Alderney
The climate table of Alderney shows the average temperatures, rainfall, and UV index per month. The table provides an overview of the average day and night temperatures in degrees Celsius, the total amount of rainfall in millimeters, the total snowfall in centimeters, and the UV index for each month. Rainfall is always measured as water, even if it's snow or hail.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
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| Temp. max (°C) | 10 | 10 | 11 | 12 | 15 | 18 | 20 | 19 | 19 | 16 | 13 | 11 |
| Temp. min (°C) | 7 | 6 | 7 | 8 | 11 | 13 | 15 | 16 | 15 | 13 | 10 | 8 |
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| Precipitation (mm) | 90 | 73 | 54 | 25 | 40 | 36 | 31 | 44 | 40 | 92 | 93 | 91 |
| UV Index | 2 | 3 | 4 | 6 | 7 | 7 | 6 | 6 | 5 | 3 | 2 | 1 |
Click on the month name to see more weather details, like daily averages, temperatures, and precipitation for the past years in that month.
Temperature charts
These charts display the average temperatures in Alderney. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Average Temperature per Month in Alderney
Yearly Temperature in Alderney
Precipitation charts
These charts show the average amount of precipitation in Alderney. Precipitation is always measured as water, even when it falls as snow or hail. The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Average Precipitation per Month in Alderney
Total Yearly Precipitation in Alderney
UV index chart
This chart shows the average UV index per month in Alderney. The UV index indicates the intensity of ultraviolet radiation and ranges from 0 to a maximum of 11.
Average UV Index per Month in Alderney
Weather experiences in Alderney
The weather in Alderney is rated an average of 3,3 out of 5 stars by 3 visitors. Have you been to Alderney? Share your weather experience to help other visitors.
Noor Vlaanderen
An unexpected rain shower can sometimes cool down a room. Nice weather!
Valentijn van BeekveldMost days were cloudy and it rained frequently. The temperature was between 8 and 12 degrees, which was quite cold. Not my favorite time to visit Alderney.
FreekIt was mostly cloudy, but there were also sunny spells. A raincoat is essential. The wind was strong, but refreshing.
Have you been to Alderney?
Share your weather experiences in Alderney.
Average weather in Alderney by month
Click on a month below to see detailed weather info for Alderney. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.