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's presence in Reykjavík records an average high-temperature of a still icy 1.7°C (35.1°F), closely mirroring December's climate. Reykjavík's nocturnal readings in January exhibit minimal variation from the daytime temperatures, averaging at a subzero cold -1.4°C (29.5°F).Humidity
The months with the highest humidity are January, February and September, with an average relative humidity of 82%.Rainfall
January is the month with the most rainfall in Reykjavík. Rain falls for 12.8 days and accumulates 47mm (1.85") of precipitation.Snowfall
Months with snowfall in Reykjavík are January through May, October through December. In Reykjavík, in January, snow falls for 7.4 days, with typically accumulated 59mm (2.32") of snow. Throughout the year, there are 41.1 snowfall days, and 309mm (12.17") of snow is accumulated.Sea temperature
In Reykjavík, Iceland, the average seawater temperature in January is 5.5°C (41.9°F).Note: Swimming in 5.5°C (41.9°F) at temperatures under 10°C (50°F) requires thermal swimsuits; otherwise, one can face cold shock and breathing difficulty. Even brief immersion at 13°C (55.4°F) feels frosty.
Daylight
The average length of the day in January in Reykjavík is 5h and 36min.On the first day of the month, sunrise is at 11:18 and sunset at 15:42. On the last day of January, in Reykjavík, sunrise is at 10:11 and sunset at 17:09 GMT.
Sunshine
With an average of 2.4h of sunshine, January has the least sunshine of the year.UV index
The months with the lowest UV index are January, February and November, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the ordinary person.Note: In January, the UV index of 1 transforms into the following advice:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Frequently asked questions
How cold is January in Reykjavík?
What are the most humid months in Reykjavík?
What is the average humidity in January in Reykjavík?
What is the rainiest month in Reykjavík?
How much does it rain in Reykjavík in January?
How many days does it snow in January in Reykjavík?
How cold is the water in January in Reykjavík?
What is the average length of the day in January in Reykjavík?
What time are sunrise and sunset in January in Reykjavík?
What is the month with the least sunshine in Reykjavík?
How many hours of sunshine does Reykjavík have in January?
What is the month with the lowest UV index in Reykjavík?
What is the UV index reading in January in Reykjavík?
Average temperature in January
Reykjavík, Iceland
- Average high temperature in January: 1.7°C
The warmest month (with the highest average high temperature) is July (13.5°C).
The month with the lowest average high temperature is December (1.3°C).
- Average low temperature in January: -1.4°C
The month with the highest average low temperature is July (9.1°C).
The coldest month (with the lowest average low temperature) is December (-2.4°C).
Average pressure in January
Reykjavík, Iceland
- Average pressure in January: 996.6mbar
The month with the highest atmospheric pressure is June (1013.8mbar).
The month with the lowest atmospheric pressure is January (996.6mbar).
Average wind speed in January
Reykjavík, Iceland
- Average wind speed in January: 24.5km/h
The windiest month (with the highest average wind speed) is February (24.9km/h).
The calmest months (with the lowest average wind speed) are June and July (14.9km/h).
Average humidity in January
Reykjavík, Iceland
- Average humidity in January: 82%
The months with the highest relative humidity are January, February and September (82%).
The month with the lowest relative humidity is May (75%).
Average rainfall in January
Reykjavík, Iceland
- Average rainfall in January: 47mm
The wettest month (with the highest rainfall) is January (47mm).
The driest months (with the least rainfall) are June and July (25mm).
Average rainfall days in January
Reykjavík, Iceland
- Average rainfall days in January: 12.8 days
The month with the highest number of rainy days is September (17.8 days).
The month with the least rainy days is December (9.7 days).
Average snowfall in January
Reykjavík, Iceland
- Average snowfall in January: 59mm
The month with the highest snowfall is March (100mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in January
Reykjavík, Iceland
- Average snowfall days in January: 7.4 days
The month with the highest number of snowfall days is March (9.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in January
Reykjavík, Iceland
- Average sea temperature in January: 5.5°C
The best month for swimming (with the highest average sea temperature) is July (11.4°C).
The coldest month (with the lowest average sea temperature) is March (5.1°C).
Average daylight in January /
Average sunshine in January
Reykjavík, Iceland
- Average daylight in January: 5h and 4min
The month with the longest days is June (Average daylight: 20h and 54min).
The month with the shortest days is December (Average daylight: 4h and 24min).
- Average sunshine in January: 2h and 2min
The month with the most sunshine is August (Average sunshine: 7h and 24min).
The month with the least sunshine is January (Average sunshine: 2h and 24min).
Average sunshine days in January
Reykjavík, Iceland
- Average sunshine days in January: 11.3 days
The month with the most sunshine days is December (14.1 days).
The month with the least sunshine days is September (8.8 days).
Average UV index in January
Reykjavík, Iceland
- Average UV index in January: 1
The month with the highest UV index is July (UV index 4).
The months with the lowest UV index are January, February and November (UV index 1).
Average cloud cover in January
Reykjavík, Iceland
- Average cloud cover in January: 66
The months with the most cloud cover are March and April (Cloud cover 68).
The months with the least cloud cover are August and December (Cloud cover 60).
Average visibility in January
Reykjavík, Iceland
- Average visibility in January: 9km
The month with the highest visibility is June (10km).
The months with the lowest visibility are January, February, March, April, May, July, August, September, October, November and December (9km).
Reykjavík, Iceland
Weather forecast for your location
2. Allow the app to use your location
