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England
The climate of Isles of Scilly
This chart shows the average monthly maximum and minimum temperatures (in degrees Celsius) and average monthly rainfall (in millimeters) for Isles of Scilly, England.
Average temperatures
The current climate in Isles of Scilly 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 7°C and in the warmer months around 15°C.
Temperature records
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.
Rainfall amount
On average, Isles of Scilly receives 872 mm of precipitation each year. For comparison, New York gets 1142 mm of precipitation annually.
Curious about the weather in other parts of England? Check out the climate and weather for spots like London, Edinburgh, Cornwall, or explore other destinations in England.
Climate Table of Isles of Scilly
The climate table of Isles of Scilly 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) | 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.
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 nice 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.
Find affordable vacations to Isles of Scilly
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Temperature charts
These charts display the average temperatures in Isles of Scilly, England. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Average Temperature per Month in Isles of Scilly
Yearly Temperature in Isles of Scilly
Precipitation charts
These charts show the average amount of precipitation in Isles of Scilly, England. 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 Isles of Scilly
Total Yearly Precipitation in Isles of Scilly
UV index chart
This chart 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.
Average UV Index per Month in Isles of Scilly
Weather experiences in Isles of Scilly
The weather in Isles of Scilly is rated an average of 3,4 out of 5 stars by 9 visitors. Have you been to Isles of Scilly? Share your weather experience to help other visitors.
Jesse
Cold, rainy days with temperatures around 8 degrees were interspersed with calm moments. Unfortunately, there was rarely any sunshine. A durable winter coat is definitely a must!
AbelIt was mostly sunny, but there were a few unexpected rainy days. Not too warm, but soft and comfortable.
KarinApril weather in the Scilly Isles was surprisingly mild with hardly any rain. The temperature was cool but comfortable for outdoor activities. The air was mostly clear, perfect for enjoying the beauty of nature!
GeertSeptember was pleasant on the Scilly Isles with mostly sunny days. It rained occasionally, but that only made the landscape greener. Warm enough to be outside, but not too hot.
KlaasLots of sunshine and pleasant temperature, around 15 degrees. Not too hot, but comfortable. Sometimes it rains, so bring an umbrella. Happy vacations!
Tessa BruijnesIt seemed mild for this time of year, but don't forget to bring a raincoat!
Thijmen HoefslootTemperatures are mild, but constant rain and wind can affect outdoor recreation. Bring warm, waterproof clothing!
FennaWe enjoyed the cooler temperatures of about 10-12 degrees Celsius, ideal for relaxing walks. In short, a great place regardless of the weather.
WillekeOctober in the Isles of Scilly was a mix of sunny days and damp, foggy days. Be sure to bring a raincoat and expect changeable weather. Beautiful and peaceful, but also unpredictable.
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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.