What’s the climate like in Guernsey?
The current climate of Guernsey features average monthly temperatures ranging from highs of 21°C during the day to lows of 10°C. 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.
The highest temperature recorded in Guernsey in recent years was 35°C in July 2022. The lowest daytime temperature recorded was -1°C in February 2018.
On average, Guernsey receives 859 mm of precipitation each year. For comparison, UK gets 701 mm of precipitation annually.
Best time to visit Guernsey?
The best time to visit Guernsey for sunny weather is June through September. During this period, you'll have good temperatures and not too much rain, making it a great time to visit Guernsey. 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.
Climate Table of Guernsey
The climate table of Guernsey shows the average temperatures, precipitation, and UV index per month. The table gives an overview of the average day and night temperatures in degrees Celsius, the total amount of precipitation in millimetres, the total snowfall in centimetres, and the UV index for each month. Precipitation 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 | 13 | 16 | 19 | 21 | 20 | 19 | 16 | 13 | 11 |
| Temp. min (°C) | 6 | 6 | 7 | 8 | 10 | 13 | 15 | 15 | 14 | 12 | 10 | 8 |
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| Precipitation (mm) | 104 | 90 | 64 | 34 | 68 | 39 | 27 | 53 | 46 | 122 | 100 | 112 |
| UV Index | 2 | 3 | 5 | 6 | 6 | 8 | 8 | 6 | 4 | 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.
- Average yearly temperature: 15°C
- Highest temperature: 21°C in July
- Lowest temperature: 10°C in January and February
- Precipitation: 859 mm per year, averaging 72 mm per month
- Driest months: 27 mm in July, 34 mm in April and 39 mm in June
- Wettest months: 122 mm in October, 112 mm in December and 104 mm in January
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Weather experiences in Guernsey
Excellent
Blessed climate, average 23 degrees, sunshine every day , sl... more
Okay
There was regular rain with occasional sunny breaks. The wea... more
Table of Contents
Average Temperature per Month in Guernsey
This graph shows the average maximum temperatures per month in Guernsey. The temperatures are shown in degrees Celsius and the average is calculated based on the recorded temperatures per month from past years.
Average Precipitation per Month in Guernsey
This graph shows how much precipitation Guernsey gets on average per month. Precipitation is always measured as water, even if it's snow or hail. This makes it easy to compare how much has fallen, regardless of the form of precipitation. The amount of precipitation is measured in millimetres and the average is calculated based on the recorded precipitation per month from past years.
Average UV Index per Month in Guernsey
This graph shows the average UV index per month in Guernsey. The UV index indicates the intensity of ultraviolet radiation and ranges from 0 to a maximum of 11.
Yearly Temperature in Guernsey
This graph shows the average yearly temperature in Guernsey. The yearly temperature, expressed in degrees Celsius, is the average of all twelve monthly temperatures summed up for that year.
Total Yearly Precipitation in Guernsey
This chart shows the total yearly precipitation in Guernsey over the past few years. The total yearly precipitation, measured in millimetres, is the sum of all the rain that fell in the twelve months of that year.
Weather experiences in Guernsey
The weather in Guernsey is rated an average of 3,7 out of 5 stars by 3 visitors. Have you been to Guernsey? Share your weather experience to help other visitors.
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There was regular rain with occasional sunny breaks. The weather is changeable, but it gives the island its charm.— This text is automatically translated to English
August on Guernsey brought mixed emotions. Although the island is bathed in sunshine and warm temperatures, there are also unexpected showers and cool evenings. Compliment the beauty of nature, despite the changeable weather.— This text is automatically translated to English
Blessed climate, average 23 degrees, sunshine every day , slight breeze. They are blissful islands to unwind and enjoy nature— This text is automatically translated to English
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Average Weather in Guernsey by Month
Click on a month below to see detailed weather info for Guernsey. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
