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
The average high-temperature during January is a still cold 2.2°C (36°F), almost matching the conditions of the preceding month. January introduces a small decrease to a nighttime average of -1.2°C (29.8°F).Humidity
January and September, with an average relative humidity of 82%, are the most humid months.Rainfall
January is the month with the most rainfall. Rain falls for 18.6 days and accumulates 142mm (5.59") of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Selfoss, Iceland, in January, during 11.9 snowfall days, 190mm (7.48") of snow is typically accumulated. In Selfoss, during the entire year, snow falls for 61.9 days and aggregates up to 825mm (32.48") of snow.Daylight
In Selfoss, the average length of the day in January is 5h and 40min.On the first day of January, sunrise is at 11:12 and sunset at 15:42. On the last day of the month, sunrise is at 10:06 and sunset at 17:08 GMT.
Sunshine
The month with the least sunshine is January, with an average of 2.4h of sunshine.UV index
In Selfoss, the average daily maximum UV index in January is 2. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for average individuals.Note: The UV index of 2 during January translates into the following guidance:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in January?
What are the most humid months?
What is the average humidity in January?
What is the wettest month in Selfoss?
How many days does it rain in January in Selfoss?
How many days does it snow in January?
How many hours of daylight does Selfoss have in January?
When is the sunrise / sunset in January?
What is the month with the least sunshine?
How long on average sun shines in January?
How high is the UV index in January?
Average temperature in January
Selfoss, Iceland
- Average high temperature in January: 2.2°C
The warmest month (with the highest average high temperature) is July (13.8°C).
The month with the lowest average high temperature is December (1.5°C).
- Average low temperature in January: -1.2°C
The month with the highest average low temperature is July (8.9°C).
The coldest month (with the lowest average low temperature) is December (-1.9°C).
Average pressure in January
Selfoss, Iceland
- Average pressure in January: 996.8mbar
The month with the highest atmospheric pressure is June (1013.8mbar).
The month with the lowest atmospheric pressure is January (996.8mbar).
Average wind speed in January
Selfoss, Iceland
- Average wind speed in January: 24.1km/h
The windiest month (with the highest average wind speed) is February (24.8km/h).
The calmest month (with the lowest average wind speed) is July (14.7km/h).
Average humidity in January
Selfoss, Iceland
- Average humidity in January: 82%
The months with the highest relative humidity are January and September (82%).
The month with the lowest relative humidity is May (74%).
Average rainfall in January
Selfoss, Iceland
- Average rainfall in January: 142mm
The wettest month (with the highest rainfall) is January (142mm).
The driest month (with the least rainfall) is June (45mm).
Average rainfall days in January
Selfoss, Iceland
- Average rainfall days in January: 18.6 days
The month with the highest number of rainy days is April (19.9 days).
The month with the least rainy days is December (14.3 days).
Average snowfall in January
Selfoss, Iceland
- Average snowfall in January: 190mm
The month with the highest snowfall is March (220mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in January
Selfoss, Iceland
- Average snowfall days in January: 11.9 days
The month with the highest number of snowfall days is March (13.3 days).
The months with the least snowfall days are July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Selfoss, Iceland
- Average daylight in January: 5h and 4min
The month with the longest days is June (Average daylight: 20h and 42min).
The month with the shortest days is December (Average daylight: 4h and 30min).
- Average sunshine in January: 2h and 2min
The month with the most sunshine is August (Average sunshine: 7h and 48min).
The month with the least sunshine is January (Average sunshine: 2h and 24min).
Average sunshine days in January
Selfoss, Iceland
- Average sunshine days in January: 5.5 days
The month with the most sunshine days is June (12.3 days).
The month with the least sunshine days is January (5.5 days).
Average UV index in January
Selfoss, Iceland
- Average UV index in January: 2
The month with the highest UV index is July (UV index 4).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in January
Selfoss, Iceland
- Average cloud cover in January: 65
The month with the most cloud cover is March (Cloud cover 67).
The months with the least cloud cover are May and August (Cloud cover 59).
Average visibility in January
Selfoss, Iceland
- Average visibility in January: 8km
The month with the highest visibility is June (10km).
The months with the lowest visibility are January, February and March (8km).
Selfoss, Iceland
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