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 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
As Guernsey transitions into January, the average high-temperature stands at a chilly 9.8°C (49.6°F), offering little variation from the preceding month. Guernsey sustains a near constant temperature throughout January, with nighttime averages of 7.8°C (46°F).Humidity
The average relative humidity in January in Guernsey is 78%.Rainfall
In Guernsey, in January, it is raining for 22 days, with typically 63mm (2.48") of accumulated precipitation. Throughout the year, there are 196.3 rainfall days, and 557mm (21.93") of precipitation is accumulated.Snowfall
The only month with snowfall is January. January is the month with the most snowfall. Snow falls for 0.3 days and accumulates 2mm (0.08") of snow.Daylight
In January, the average length of the day is 8h and 43min.On the first day of the month, sunrise is at 08:06 and sunset at 16:21. On the last day of January, in Guernsey, sunrise is at 07:43 and sunset at 17:03 GMT.
Sunshine
January, November and December, with an average of 3.9h of sunshine, are months with the least sunshine in Guernsey.UV index
In January, the average daily maximum UV index in Guernsey is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In January, a regular UV index of 3 translates into these guidelines:
Undertake precautions - Guarding against sun damage is counselled. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Frequently asked questions
What are January temperatures in Guernsey?
What is the average humidity in January in Guernsey?
How much does it rain in Guernsey in January?
What is the snowiest month in Guernsey?
When does it start to snow in Guernsey?
How many hours of daylight does Guernsey have in January?
What time are sunrise and sunset in January in Guernsey?
What is the month with the least sunshine in Guernsey?
How long on average sun shines in January in Guernsey?
What is the UV index reading in January in Guernsey?
Average temperature in January
Guernsey, Guernsey
- Average high temperature in January: 9.8°C
The warmest month (with the highest average high temperature) is August (17.8°C).
The month with the lowest average high temperature is February (9.2°C).
- Average low temperature in January: 7.8°C
The month with the highest average low temperature is August (15.8°C).
The coldest month (with the lowest average low temperature) is February (7°C).
Average pressure in January
Guernsey, Guernsey
- Average pressure in January: 1016.1mbar
The month with the highest atmospheric pressure is September (1017.9mbar).
The month with the lowest atmospheric pressure is November (1011.5mbar).
Average wind speed in January
Guernsey, Guernsey
- Average wind speed in January: 34.1km/h
The windiest month (with the highest average wind speed) is December (36km/h).
The calmest month (with the lowest average wind speed) is July (21.9km/h).
Average humidity in January
Guernsey, Guernsey
- Average humidity in January: 78%
The months with the highest relative humidity are June and July (84%).
The months with the lowest relative humidity are November and December (77%).
Average rainfall in January
Guernsey, Guernsey
- Average rainfall in January: 63mm
The wettest month (with the highest rainfall) is November (87mm).
The driest month (with the least rainfall) is July (26mm).
Average rainfall days in January
Guernsey, Guernsey
- Average rainfall days in January: 22 days
The month with the highest number of rainy days is November (22.8 days).
The month with the least rainy days is June (11.5 days).
Average snowfall in January
Guernsey, Guernsey
- Average snowfall in January: 2mm
The month with the highest snowfall is January (2mm).
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in January
Guernsey, Guernsey
- Average snowfall days in January: 0.3 days
The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in January /
Average sunshine in January
Guernsey, Guernsey
- Average daylight in January: 8h and 4min
The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 12min).
- Average sunshine in January: 3h and 5min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The months with the least sunshine are January, November and December (Average sunshine: 3h and 54min).
Average sunshine days in January
Guernsey, Guernsey
- Average sunshine days in January: 5.5 days
The month with the most sunshine days is May (16.3 days).
The month with the least sunshine days is November (4 days).
Average UV index in January
Guernsey, Guernsey
- Average UV index in January: 3
The months with the highest UV index are July, August and September (UV index 5).
The month with the lowest UV index is February (UV index 2).
Average cloud cover in January
Guernsey, Guernsey
- Average cloud cover in January: 62
The months with the most cloud cover are November and December (Cloud cover 63).
The month with the least cloud cover is July (Cloud cover 37).
Average visibility in January
Guernsey, Guernsey
- 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).
Guernsey, Guernsey
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