What’s the climate like in Isles of Scilly?
The current climate of Isles of Scilly features average monthly temperatures ranging from highs of 20°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 7°C and in the warmer months around 15°C.
The highest temperature recorded in Isles of Scilly in recent years was 26°C in September 2023. The lowest daytime temperature recorded was 0°C in February 2018.
On average, Isles of Scilly receives 872 mm of precipitation each year. For comparison, London gets 701 mm of precipitation annually.
Curious about the climate in other parts of England? Check out the weather and climate in places like London, Edinburgh, Cornwall, or have a look at other destinations in England.
Best time to visit Isles of Scilly?
The best time to visit Isles of Scilly 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 Isles of Scilly. 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 Isles of Scilly
The climate table of Isles of Scilly 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) | 11 | 10 | 11 | 13 | 15 | 18 | 20 | 19 | 18 | 16 | 13 | 12 |
| Temp. min (°C) | 8 | 7 | 8 | 9 | 11 | 13 | 16 | 15 | 14 | 13 | 10 | 9 |
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| Precipitation (mm) | 80 | 60 | 68 | 56 | 40 | 45 | 70 | 58 | 57 | 93 | 166 | 79 |
| UV Index | 1 | 2 | 4 | 7 | 6 | 7 | 7 | 5 | 5 | 4 | 1 | 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: 20°C in July
- Lowest temperature: 10°C in February
- Precipitation: 872 mm per year, averaging 73 mm per month
- Driest months: 40 mm in May, 45 mm in June and 56 mm in April
- Wettest months: 166 mm in November, 93 mm in October and 80 mm in January
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Table of Contents
Average Temperature per Month in Isles of Scilly
This graph shows the average maximum temperatures per month in Isles of Scilly, England. 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 Isles of Scilly
This graph shows how much precipitation Isles of Scilly, England, 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 Isles of Scilly
This graph shows the average UV index per month in Isles of Scilly, England. The UV index indicates the intensity of ultraviolet radiation and ranges from 0 to a maximum of 11.
Yearly Temperature in Isles of Scilly
This graph shows the average yearly temperature in Isles of Scilly, England. The yearly temperature, expressed in degrees Celsius, is the average of all twelve monthly temperatures summed up for that year.
Total Yearly Precipitation in Isles of Scilly
This chart shows the total yearly precipitation in Isles of Scilly, England, 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 Isles of Scilly
The weather in Isles of Scilly is rated an average of 0 out of 5 stars by 9 visitors. Have you been to Isles of Scilly? Share your weather experience to help other visitors.
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Average Weather in Isles of Scilly by Month
Click on a month below to see detailed weather info for Isles of Scilly. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
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