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
Ruhnu's entry into January measures an average high-temperature of a still wintry 0.7°C (33.3°F), closely parallel to the preceding month. Ruhnu observes an average low-temperature of -1.8°C (28.8°F) during the slightly cooler nights of January.Humidity
In Ruhnu, the average relative humidity in January is 85%.Rainfall
In Ruhnu, in January, during 7.2 rainfall days, 15mm (0.59") of precipitation is typically accumulated. In Ruhnu, during the entire year, the rain falls for 133.3 days and collects up to 249mm (9.8") of precipitation.Snowfall
January through April, October through December are months with snowfall. The month with the most snowfall is January, when snow falls for 10.8 days and typically aggregates up to 27mm (1.06") of snow.Daylight
The average length of the day in January in Ruhnu is 7h and 22min.On the first day of January, sunrise is at 09:10 and sunset at 15:49. On the last day of the month, sunrise is at 08:32 and sunset at 16:48 EET.
Sunshine
The average sunshine in January is 2.3h.UV index
The months with the lowest UV index in Ruhnu are January, March 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 rays for the average person.Note: In January, the maximum UV index of 1 transforms into these recommendations:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Frequently asked questions
How cold is January in Ruhnu?
What is the average humidity in January in Ruhnu?
How many days does it rain in January in Ruhnu?
What is the snowiest month in Ruhnu?
How many days does it snow in January in Ruhnu?
What is the average length of the day in January in Ruhnu?
When are sunrise and sunset in January in Ruhnu?
How many hours of sunshine does Ruhnu have in January?
What is the month with the lowest UV index in Ruhnu?
What is the UV index reading in January in Ruhnu?
Average temperature in January
Ruhnu, Estonia
- Average high temperature in January: 0.7°C
The warmest month (with the highest average high temperature) is August (19.3°C).
The month with the lowest average high temperature is February (-0.4°C).
- Average low temperature in January: -1.8°C
The month with the highest average low temperature is August (16.5°C).
The coldest month (with the lowest average low temperature) is February (-2.3°C).
Average pressure in January
Ruhnu, Estonia
- Average pressure in January: 1012.7mbar
The month with the highest atmospheric pressure is May (1015.4mbar).
The month with the lowest atmospheric pressure is December (1010mbar).
Average wind speed in January
Ruhnu, Estonia
- Average wind speed in January: 29.1km/h
The windiest month (with the highest average wind speed) is December (33.1km/h).
The calmest month (with the lowest average wind speed) is May (19.2km/h).
Average humidity in January
Ruhnu, Estonia
- Average humidity in January: 85%
The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is August (75%).
Average rainfall in January
Ruhnu, Estonia
- Average rainfall in January: 15mm
The wettest month (with the highest rainfall) is August (38mm).
The driest month (with the least rainfall) is April (9mm).
Average rainfall days in January
Ruhnu, Estonia
- Average rainfall days in January: 7.2 days
The month with the highest number of rainy days is July (15.4 days).
The month with the least rainy days is February (6.7 days).
Average snowfall in January
Ruhnu, Estonia
- Average snowfall in January: 27mm
The month with the highest snowfall is January (27mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in January
Ruhnu, Estonia
- Average snowfall days in January: 10.8 days
The month with the highest number of snowfall days is January (10.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Ruhnu, Estonia
- Average daylight in January: 7h and 2min
The month with the longest days is June (Average daylight: 18h and 0min).
The month with the shortest days is December (Average daylight: 6h and 42min).
- Average sunshine in January: 2h and 2min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 2h and 0min).
Average sunshine days in January
Ruhnu, Estonia
- Average sunshine days in January: 12.5 days
The month with the most sunshine days is May (18.7 days).
The month with the least sunshine days is December (9 days).
Average UV index in January
Ruhnu, Estonia
- Average UV index in January: 1
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, March and December (UV index 1).
Average cloud cover in January
Ruhnu, Estonia
- Average cloud cover in January: 74
The month with the most cloud cover is December (Cloud cover 76).
The months with the least cloud cover are July and August (Cloud cover 32).
Average visibility in January
Ruhnu, Estonia
- Average visibility in January: 9km
The months with the highest visibility are April, May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, November and December (9km).
Ruhnu, Estonia
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