Monthly weather forecast and climate
Isles of Scilly, United Kingdom

Weather in January

January, like December, in Isles of Scilly, United Kingdom, is a cool winter month, with temperature in the range of an average low of 8.6°C (47.5°F) and an average high of 10.3°C (50.5°F). In Isles of Scilly, United Kingdom, the average high-temperature is almost the same as in December - a still fresh 10.3°C (50.5°F). Weather in January »

Weather in February

February, the last month of the winter, in Isles of Scilly, is another chilly month, with average temperature fluctuating between 9.7°C (49.5°F) and 7.9°C (46.2°F). With an average high-temperature of 9.7°C (49.5°F) and an average low-temperature of 7.9°C (46.2°F), February is the coldest month. Weather in February »

Weather in March

The first month of the spring, March, is also a frosty month in Isles of Scilly, United Kingdom, with average temperature ranging between max 9.8°C (49.6°F) and min 8.1°C (46.6°F). In March, the average high-temperature is practically the same as in February - a still chilly 9.8°C (49.6°F). Weather in March »

Weather in April

April in Isles of Scilly, United Kingdom, is a cool spring month, with average temperature ranging between min 9.2°C (48.6°F) and max 10.8°C (51.4°F). In April, the average high-temperature is essentially the same as in March - a cool 10.8°C (51.4°F). Weather in April »

Weather in May

The last month of the spring, May, is another cool month in Isles of Scilly, United Kingdom, with average temperature fluctuating between 12.3°C (54.1°F) and 10.8°C (51.4°F). In May, the average high-temperature is practically the same as in April - a still fresh 12.3°C (54.1°F). Weather in May »

Weather in June

The first month of the summer, June, is a mild month in Isles of Scilly, United Kingdom, with average temperature varying between 14.8°C (58.6°F) and 13.5°C (56.3°F). In June, the average high-temperature is relatively the same as in May - a mild 14.8°C (58.6°F). Weather in June »

Weather in July

July is an enjoyable summer month in Isles of Scilly, United Kingdom, with average temperature ranging between max 17°C (62.6°F) and min 15.5°C (59.9°F). In Isles of Scilly, the average high-temperature is almost the same as in June - an enjoyable 17°C (62.6°F). Weather in July »

Weather in August

The last month of the summer, August, is another comfortable month in Isles of Scilly, United Kingdom, with temperature in the range of an average high of 17.2°C (63°F) and an average low of 15.9°C (60.6°F). August is the warmest month, with an average high-temperature of 17.2°C (63°F) and an average low-temperature of 15.9°C (60.6°F). Weather in August »

Weather in September

September, the first month of the autumn, in Isles of Scilly, is still a comfortable month, with temperature in the range of an average low of 14.9°C (58.8°F) and an average high of 16.4°C (61.5°F). In September, the average high-temperature is almost the same as in August - a still enjoyable 16.4°C (61.5°F). Weather in September »

Weather in October

October, like September, is another mild autumn month in Isles of Scilly, United Kingdom, with average temperature varying between 14.7°C (58.5°F) and 13.5°C (56.3°F). In Isles of Scilly, United Kingdom, the average high-temperature is essentially the same as in September - a moderate 14.7°C (58.5°F). Weather in October »

Weather in November

November, the last month of the autumn, in Isles of Scilly, is also a fresh month, with average temperature varying between 12.5°C (54.5°F) and 11.1°C (52°F). In Isles of Scilly, United Kingdom, the average high-temperature is essentially the same as in October - a fresh 12.5°C (54.5°F). Weather in November »

Weather in December

December, the first month of the winter, in Isles of Scilly, is still a cool month, with average temperature ranging between min 9.6°C (49.3°F) and max 11.3°C (52.3°F). In Isles of Scilly, the average high-temperature is essentially the same as in November - a still fresh 11.3°C (52.3°F). Weather in December »
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FAQ

What are the least humid months in Isles of Scilly?

Months with the lowest humidity in Isles of Scilly are January, February, November and December, with an average relative humidity of 78%.

How much does it rain in Isles of Scilly?

Throughout the year, in Isles of Scilly, there are 200.8 rainfall days, and 599mm (23.58") of precipitation is accumulated.

How many days does it snow in Isles of Scilly?

In Isles of Scilly, United Kingdom, during the entire year, snow falls for 0.3 days.

When it does not snow in Isles of Scilly?

In Isles of Scilly, United Kingdom, snow does not fall in January, February, April through September, November and December.

What is the month with the lowest UV index in Isles of Scilly?

Months with the lowest UV index in Isles of Scilly, United Kingdom, are January through April, November and December, with an average maximum UV index of 3.

What is the coldest month in Isles of Scilly?

With an average high-temperature of 9.7°C (49.5°F) and an average low-temperature of 7.9°C (46.2°F), February is the coldest month in Isles of Scilly, United Kingdom.

When does it snow in Isles of Scilly?

Months with snowfall in Isles of Scilly, United Kingdom, are March and October.

What is the snowiest month in Isles of Scilly?

The month with the most snowfall days in Isles of Scilly is March when snow falls for 0.2 days.

What month is the sea coldest in Isles of Scilly?

March is the month with the coldest seawater, with an average sea temperature of 10.1°C (50.2°F).

What is the driest month in Isles of Scilly?

The month with the least rainfall in Isles of Scilly, United Kingdom, is May when the rain falls for 13.7 days and typically collects 29mm (1.14") of precipitation.

What month has the most sunshine in Isles of Scilly?

The month with the most sunshine is May, with an average of 8.5h of sunshine.

What is the most humid month in Isles of Scilly?

June is the most humid month, with an average relative humidity of 85%.

When are the longest days in Isles of Scilly?

June has the longest days of the year, with an average of 16.3h of daylight.

What is the warmest month in Isles of Scilly?

The warmest month in Isles of Scilly, United Kingdom, is August, with an average high-temperature of 17.2°C (63°F) and an average low-temperature of 15.9°C (60.6°F).

What is the month with the warmest sea water in Isles of Scilly?

With an average sea temperature of 17.3°C (63.1°F), August is the month with the warmest seawater.

What is the month with the highest UV index in Isles of Scilly?

The month with the highest UV index in Isles of Scilly is August, with an average maximum UV index of 5.

What is the wettest month in Isles of Scilly?

The month with the most rainfall in Isles of Scilly is November when the rain falls for 21.3 days and typically aggregates up to 86mm (3.39") of precipitation.

What is the month with the shortest days in Isles of Scilly?

With an average of 8.2h of daylight, December has the shortest days of the year in Isles of Scilly.

What is the month with the least sunshine in Isles of Scilly?

The month with the least sunshine is December, with an average of 3.9h of sunshine.

Average temperature
Isles of Scilly, United Kingdom

Average temperature - Isles of Scilly, United Kingdom

The warmest month (with the highest average high temperature) is August (17.2°C).
The month with the lowest average high temperature is February (9.7°C).

The month with the highest average low temperature is August (15.9°C).
The coldest month (with the lowest average low temperature) is February (7.9°C).

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Average pressure
Isles of Scilly, United Kingdom

Average pressure - Isles of Scilly, United Kingdom

The month with the highest atmospheric pressure is September (1017.6mbar).
The month with the lowest atmospheric pressure is November (1010.6mbar).

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Average wind speed
Isles of Scilly, United Kingdom

Average wind speed - Isles of Scilly, United Kingdom

The windiest month (with the highest average wind speed) is December (35.9km/h).
The calmest month (with the lowest average wind speed) is July (23.8km/h).

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Average humidity
Isles of Scilly, United Kingdom

Average humidity - Isles of Scilly, United Kingdom

The month with the highest relative humidity is June (85%).
Months with the lowest relative humidity are January, February, November and December (78%).

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Average rainfall
Isles of Scilly, United Kingdom

Average rainfall - Isles of Scilly, United Kingdom

The wettest month (with the highest rainfall) is November (86mm).
The driest month (with the least rainfall) is May (29mm).

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Average rainfall days
Isles of Scilly, United Kingdom

Average rainfall days - Isles of Scilly, United Kingdom

The month with the highest number of rainy days is November (21.3 days).
The month with the least rainy days is June (13.1 days).

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Average snowfall days
Isles of Scilly, United Kingdom

Average snowfall days - Isles of Scilly, United Kingdom

The month with the highest number of snowfall days is March (0.2 days).
Months with the least snowfall days are January, February, April, May, June, July, August, September, November and December (0 days).

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Average sea temperature
Isles of Scilly, United Kingdom

Average sea temperature - Isles of Scilly, United Kingdom

The best month for swimming (with the highest average sea temperature) is August (17.3°C).
The coldest month (with the lowest average sea temperature) is March (10.1°C).

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Average daylight / Average sunshine
Isles of Scilly, United Kingdom

Average daylight / Average sunshine - Isles of Scilly, United Kingdom

The month with the longest days is June (Average daylight: 16.3h).
The month with the shortest days is December (Average daylight: 8.2h).

The month with the most sunshine is May (Average sunshine: 8.5h).
The month with the least sunshine is December (Average sunshine: 3.9h).

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Average sunshine days
Isles of Scilly, United Kingdom

Average sunshine days - Isles of Scilly, United Kingdom

The month with the most sunshine days is June (15 days).
The month with the least sunshine days is November (5.7 days).

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Average UV index
Isles of Scilly, United Kingdom

Average UV index - Isles of Scilly, United Kingdom

The month with the highest UV index is August (UV index 5).
Months with the lowest UV index are January, February, March, April, November and December (UV index 3).

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Average visibility
Isles of Scilly, United Kingdom

Average visibility - Isles of Scilly, United Kingdom

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).

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