Weather in January
Temperature
In Plymouth, United Kingdom, January and February are characterised by the lowest temperatures, recording an average high of 8.8°C (47.8°F).Rainfall
In Plymouth, in January, it is raining for 15.1 days, with typically 108mm (4.25") of accumulated precipitation. In Plymouth, during the entire year, the rain falls for 142.2 days and collects up to 1007mm (39.65") of precipitation.Sea temperature
In January, the average sea temperature is 10.3°C (50.5°F).Note: Without suitable protection, venturing into 10.3°C (50.5°F) waters cooler than 10°C (50°F) can lead to pronounced cold shock and rapid breaths.
Daylight
The average length of the day in January in Plymouth is 8h and 36min.On the first day of January, sunrise is at 8:16 am and sunset at 4:23 pm. On the last day of the month, sunrise is at 7:53 am and sunset at 5:06 pm GMT.
Sunshine
The average sunshine in January in Plymouth is 2h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: A maximum high daily UV index of 1 during January translates into the following directions:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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Average temperature in January
Plymouth, United Kingdom
- Average high temperature in January: 8.8°C
The warmest month (with the highest average high temperature) is August (20°C).
The months with the lowest average high temperature are January and February (8.8°C).
- Average low temperature in January: 4°C
The month with the highest average low temperature is August (13.4°C).
The coldest month (with the lowest average low temperature) is February (3.6°C).
Average rainfall in January
Plymouth, United Kingdom
- Average rainfall in January: 108.3mm
The wettest month (with the highest rainfall) is December (118.8mm).
The driest month (with the least rainfall) is June (57.2mm).
Average rainfall days in January
Plymouth, United Kingdom
- Average rainfall days in January: 15.1 days
The month with the highest number of rainy days is January (15.1 days).
The month with the least rainy days is June (8.5 days).
Average sea temperature in January
Plymouth, United Kingdom
- Average sea temperature in January: 10.3°C
The best month for swimming (with the highest average sea temperature) is August (16.9°C).
The coldest month (with the lowest average sea temperature) is March (9.5°C).
Average daylight in January /
Average sunshine in January
Plymouth, United Kingdom
- Average daylight in January: 8h and 4min
The month with the longest days is June (Average daylight: 16h and 24min).
The month with the shortest days is December (Average daylight: 8h and 6min).
- Average sunshine in January: 2h and 0min
The month with the most sunshine is June (Average sunshine: 7h and 24min).
The month with the least sunshine is December (Average sunshine: 1h and 48min).
Average UV index in January
Plymouth, United Kingdom
- Average UV index in January: 1
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Plymouth, United Kingdom
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