Temperatures in December
It's cool in December in Isles of Scilly with an average temperature of 12°C. Temperatures this month range from a low of 11°C to a high of 13°C. At night, you can expect temperatures between 8°C and 11°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Isles of Scilly in December. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of December
The month of December starts in Isles of Scilly with cool temperatures, averaging around 12°C during the day and nights close to 9°C. A few showers might pop up in the first days of the month, but the weather remains mostly sunny and dry. Go for a warm coat, jumper or cardigan, and long trousers.
Mid-December
By mid-December, the average daytime temperature stays the same at 12°C, with nights close to 10°C. There might be a few showers during this period, but plenty of dry days with sunshine too. Go for a warm coat, jumper or cardigan, and long trousers.
End of December
By the end of December, the average daytime temperature in Isles of Scilly will be around 12°C, with nights close to 10°C. A shower might show up, but overall the weather will be dry and sunny. Go for a warm coat, jumper or cardigan, and long trousers.
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Precipitation in December
In December, there is an average of 79 mm of precipitation, spread over 15 days. The wind speed is around 6 Bft, mostly coming from the Southwest.
The average precipitation chance is 49% per day this month.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in December for Isles of Scilly. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
Isles of Scilly in December |
London | ||
|---|---|---|---|
 Average Temperature |
12°C | 9°C | |
 High Temp |
13°C | 11°C | |
| Low Temp |
11°C | 8°C | |
 Total Precipitation |
79 mm | 67 mm | |
| Rainy Days |
15 days | 10 days | |
November
UV index
The UV index is a maximum of 2 this month. That's a low value on the intensity scale of 1 to 11. The risk of sunburn is minimal at this time.
Temperature records for Isles of Scilly in December
With 15°C, Isles of Scilly hit the highest temperature in the last 10 years in December 2015. The lowest daytime temperature in this month was 5°C in 2022. The extreme night temperatures ranged from a low of 2°C to a high of 14°C.
Check out the climate of Isles of Scilly for all months and discover the best travel time
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.
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Daily Temperature in December in Isles of Scilly
This chart shows the average daily temperatures, both day and night, for each day in December in Isles of Scilly, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in December in Isles of Scilly
The chart below shows the average daily precipitation in December for Isles of Scilly, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for December, you can expect around 15 days of rain in Isles of Scilly.
Daily UV Index in December in Isles of Scilly
This chart shows the average daily UV index in December in Isles of Scilly, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in December in Isles of Scilly Over the Years
This chart shows the average temperature in December in Isles of Scilly, measured in degrees Celsius, over the past years.
Total Precipitation in December in Isles of Scilly Over the Years
This chart shows the average precipitation in December in Isles of Scilly, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in December for Isles of Scilly
Click on a specific day in December for detailed info on the typical weather on that day in Isles of Scilly. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in December in Isles of Scilly
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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.
Or check out the climate of Isles of Scilly for all months at once
