Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall days in January
- Average sea temperature in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
December's transformation into January witnesses an average high-temperature of a still cool 10.3°C (50.5°F) in Isles of Scilly, noting a minor change from the preceding month. The nighttime temperature demonstrates a marginal decline, averaging at a chilly 8.6°C (47.5°F) during January.Humidity
January, February, November and December, with an average relative humidity of 78%, are the least humid months in Isles of Scilly.Rainfall
In Isles of Scilly, in January, during 20.9 rainfall days, 61mm (2.4") of precipitation is typically accumulated. In Isles of Scilly, during the entire year, the rain falls for 200.8 days and collects up to 599mm (23.58") of precipitation.Snowfall
January, February, April through September, November and December are months without snowfall.Sea temperature
In January, the average sea temperature is 10.8°C (51.4°F).Note: Diving into 10.8°C (51.4°F) is practical below 10°C (50°F), given you're wearing protective swim gear; without it, expect a quick onset of cold shock and a struggle to breathe. Merely touching waters at 13°C (55.4°F) feels ice-cold.
Daylight
The average length of the day in January in Isles of Scilly is 8h and 40min.On the first day of the month, sunrise is at 8:23 am and sunset at 4:33 pm. On the last day of January, sunrise is at 8:00 am and sunset at 5:16 pm GMT.
Sunshine
The average sunshine in January is 4.1h.UV index
The months with the lowest UV index are January through April, November and December, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index of 3 during January translates into these guidelines:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in January?
What are the least humid months?
What is the average humidity in January?
How much does it rain in January?
When it does not snow?
What is the water temperature in January?
How many hours of daylight does Isles of Scilly have in January?
When are sunrise and sunset in January?
How many hours of sunshine does Isles of Scilly have in January?
What are the months with the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
Isles of Scilly, United Kingdom
- Average high temperature in January: 10.3°C
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).
- Average low temperature in January: 8.6°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).
Average pressure in January
Isles of Scilly, United Kingdom
- Average pressure in January: 1014.9mbar
The month with the highest atmospheric pressure is September (1017.6mbar).
The month with the lowest atmospheric pressure is November (1010.6mbar).
Average wind speed in January
Isles of Scilly, United Kingdom
- Average wind speed in January: 34.6km/h
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).
Average humidity in January
Isles of Scilly, United Kingdom
- Average humidity in January: 78%
The month with the highest relative humidity is June (85%).
The months with the lowest relative humidity are January, February, November and December (78%).
Average rainfall in January
Isles of Scilly, United Kingdom
- Average rainfall in January: 61mm
The wettest month (with the highest rainfall) is November (86mm).
The driest month (with the least rainfall) is May (29mm).
Average rainfall days in January
Isles of Scilly, United Kingdom
- Average rainfall days in January: 20.9 days
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).
Average snowfall days in January
Isles of Scilly, United Kingdom
- Average snowfall days in January: 0 days
The month with the highest number of snowfall days is March (0.2 days).
The months with the least snowfall days are January, February, April, May, June, July, August, September, November and December (0 days).
Average sea temperature in January
Isles of Scilly, United Kingdom
- Average sea temperature in January: 10.8°C
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).
Average daylight in January /
Average sunshine in January
Isles of Scilly, United Kingdom
- Average daylight in January: 8h and 4min
The month with the longest days is June (Average daylight: 16h and 18min).
The month with the shortest days is December (Average daylight: 8h and 12min).
- Average sunshine in January: 4h and 1min
The month with the most sunshine is May (Average sunshine: 8h and 30min).
The month with the least sunshine is December (Average sunshine: 3h and 54min).
Average sunshine days in January
Isles of Scilly, United Kingdom
- Average sunshine days in January: 6.5 days
The month with the most sunshine days is June (15 days).
The month with the least sunshine days is November (5.7 days).
Average UV index in January
Isles of Scilly, United Kingdom
- Average UV index in January: 3
The month with the highest UV index is August (UV index 5).
The months with the lowest UV index are January, February, March, April, November and December (UV index 3).
Average cloud cover in January
Isles of Scilly, United Kingdom
- Average cloud cover in January: 62
The months with the most cloud cover are January and December (Cloud cover 62).
The month with the least cloud cover is April (Cloud cover 44).
Average visibility in January
Isles of Scilly, United Kingdom
- Average visibility in January: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Isles of Scilly, United Kingdom
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