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 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
January proves to be the coldest month, recording an average maximum temperature of 6.7°C (44.1°F) and a minimum temperature of 2.4°C (36.3°F).Humidity
In Grays, the average relative humidity in January is 87%.Rainfall
In January, the rain falls for 13.8 days. Throughout January, 30mm (1.18") of precipitation is accumulated. In Grays, during the entire year, the rain falls for 160.1 days and collects up to 378mm (14.88") of precipitation.Snowfall
January through April, November and December are months with snowfall. In January, in Grays, it is snowing for 2.3 days. Throughout January, 17mm (0.67") of snow is accumulated. In Grays, during the entire year, snow falls for 9 days and aggregates up to 60mm (2.36") of snow.Sea temperature
In Grays, the average seawater temperature in January is 8.8°C (47.8°F).Note: Dipping into 8.8°C (47.8°F) below 10°C (50°F) is possible with the right protection; absent that, anticipate cold shock and hampered breathing. Swimming momentarily at 13°C (55.4°F) can be jarring.
Daylight
The average length of the day in January is 8h and 27min.On the first day of the month, sunrise is at 8:04 am and sunset at 4:00 pm. On the last day of January, sunrise is at 7:38 am and sunset at 4:45 pm GMT.
Sunshine
In January, the average sunshine is 4.2h.UV index
The months with the lowest UV index in Grays are January through March, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index of 2 during January leads to these instructions:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. To cut down UV radiation exposure by about half, sport a wide-brim hat. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Frequently asked questions
What month is the coldest in Grays?
Is it cold in Grays during January?
What is the average humidity in January in Grays?
How much does it rain in Grays in January?
How many days does it snow in January in Grays?
What is the water temperature in January in Grays?
What is the average length of the day in January in Grays?
What time are sunrise and sunset in January in Grays?
How many hours of sunshine does Grays have in January?
What are the months with the lowest UV index in Grays?
What is the UV index reading in January in Grays?
Average temperature in January
Grays, United Kingdom
- Average high temperature in January: 6.7°C
The warmest month (with the highest average high temperature) is July (22°C).
The month with the lowest average high temperature is January (6.7°C).
- Average low temperature in January: 2.4°C
The month with the highest average low temperature is August (14°C).
The coldest month (with the lowest average low temperature) is January (2.4°C).
Average pressure in January
Grays, United Kingdom
- Average pressure in January: 1014.7mbar
The month with the highest atmospheric pressure is September (1017mbar).
The month with the lowest atmospheric pressure is November (1010.7mbar).
Average wind speed in January
Grays, United Kingdom
- Average wind speed in January: 17.3km/h
The windiest month (with the highest average wind speed) is February (18.2km/h).
The calmest months (with the lowest average wind speed) are July and August (13.2km/h).
Average humidity in January
Grays, United Kingdom
- Average humidity in January: 87%
The month with the highest relative humidity is December (88%).
The month with the lowest relative humidity is August (73%).
Average rainfall in January
Grays, United Kingdom
- Average rainfall in January: 30mm
The wettest month (with the highest rainfall) is December (47mm).
The driest month (with the least rainfall) is April (19mm).
Average rainfall days in January
Grays, United Kingdom
- Average rainfall days in January: 13.8 days
The month with the highest number of rainy days is November (15.2 days).
The month with the least rainy days is September (10.2 days).
Average snowfall in January
Grays, United Kingdom
- Average snowfall in January: 17mm
The month with the highest snowfall is February (22mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in January
Grays, United Kingdom
- Average snowfall days in January: 2.3 days
The month with the highest number of snowfall days is February (3.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in January
Grays, United Kingdom
- Average sea temperature in January: 8.8°C
The best month for swimming (with the highest average sea temperature) is September (17.3°C).
The coldest month (with the lowest average sea temperature) is March (7.9°C).
Average daylight in January /
Average sunshine in January
Grays, United Kingdom
- Average daylight in January: 8h and 3min
The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in January: 4h and 1min
The month with the most sunshine is August (Average sunshine: 8h and 18min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).
Average sunshine days in January
Grays, United Kingdom
- Average sunshine days in January: 12.8 days
The month with the most sunshine days is September (16.8 days).
The month with the least sunshine days is November (12.4 days).
Average UV index in January
Grays, United Kingdom
- Average UV index in January: 2
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in January
Grays, United Kingdom
- Average cloud cover in January: 58
The month with the most cloud cover is February (Cloud cover 61).
The months with the least cloud cover are August and September (Cloud cover 46).
Average visibility in January
Grays, United Kingdom
- Average visibility in January: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
Grays, United Kingdom
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