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 brings an average high-temperature of a still icy 4.3°C (39.7°F), showing a slight difference from December's 4.2°C (39.6°F). A minor drop in temperature is observed from daytime highs during the nights of January, averaging a still wintry 1.9°C (35.4°F).Humidity
In Grindavik, the average relative humidity in January is 76%.Rainfall
January is the month with the most rainfall in Grindavik. Rain falls for 16.7 days and accumulates 99mm (3.9") of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Grindavik, during January, snow falls for 6.8 days and regularly aggregates up to 57mm (2.24") of snow. Throughout the year, there are 33.4 snowfall days, and 297mm (11.69") of snow is accumulated.Sea temperature
In January, the average sea temperature is 6.1°C (43°F).Note: Swimming in 6.1°C (43°F) feels unbearing at 13°C (55.4°F) and can be life-risking below 10°C (50°F), causing breathing issues and cold shock, depending on a person's capacity.
Daylight
In January, the average length of the day in Grindavik, Iceland, is 5h and 42min.On the first day of January, sunrise is at 11:16 and sunset at 15:49. On the last day of the month, sunrise is at 10:11 and sunset at 17:14 GMT.
Sunshine
The month with the least sunshine in Grindavik is January, with an average of 2.3h of sunshine.UV index
January through May, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: During January, 2 as the daily maximum UV index converts into the following advice:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is January in Grindavik?
What is the average humidity in January in Grindavik?
What is the rainiest month in Grindavik?
How much does it rain in Grindavik in January?
How many days does it snow in January in Grindavik?
What is the water temperature in January in Grindavik?
How many hours of daylight does Grindavik have in January?
When are sunrise and sunset in January in Grindavik?
What is the month with the least sunshine in Grindavik?
How many hours of sunshine does Grindavik have in January?
When is the lowest UV index in Grindavik?
What is the UV index intensity in January in Grindavik?
Average temperature in January
Grindavik, Iceland
- Average high temperature in January: 4.3°C
The warmest months (with the highest average high temperature) are July and August (12.2°C).
The months with the lowest average high temperature are February, March and December (4.2°C).
- Average low temperature in January: 1.9°C
The month with the highest average low temperature is July (9.9°C).
The coldest months (with the lowest average low temperature) are March and December (1.3°C).
Average pressure in January
Grindavik, Iceland
- Average pressure in January: 996.1mbar
The month with the highest atmospheric pressure is June (1013.7mbar).
The month with the lowest atmospheric pressure is January (996.1mbar).
Average wind speed in January
Grindavik, Iceland
- Average wind speed in January: 34.8km/h
The windiest month (with the highest average wind speed) is February (35km/h).
The calmest month (with the lowest average wind speed) is June (20.1km/h).
Average humidity in January
Grindavik, Iceland
- Average humidity in January: 76%
The months with the highest relative humidity are July and August (81%).
The month with the lowest relative humidity is December (74%).
Average rainfall in January
Grindavik, Iceland
- Average rainfall in January: 99mm
The wettest month (with the highest rainfall) is January (99mm).
The driest month (with the least rainfall) is June (35mm).
Average rainfall days in January
Grindavik, Iceland
- Average rainfall days in January: 16.7 days
The month with the highest number of rainy days is September (19.9 days).
The month with the least rainy days is June (12.5 days).
Average snowfall in January
Grindavik, Iceland
- Average snowfall in January: 57mm
The month with the highest snowfall is March (75mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in January
Grindavik, Iceland
- Average snowfall days in January: 6.8 days
The month with the highest number of snowfall days is March (8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in January
Grindavik, Iceland
- Average sea temperature in January: 6.1°C
The best month for swimming (with the highest average sea temperature) is July (11.7°C).
The coldest month (with the lowest average sea temperature) is March (5.8°C).
Average daylight in January /
Average sunshine in January
Grindavik, Iceland
- Average daylight in January: 5h and 4min
The month with the longest days is June (Average daylight: 20h and 36min).
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 36min).
The month with the least sunshine is January (Average sunshine: 2h and 18min).
Average sunshine days in January
Grindavik, Iceland
- Average sunshine days in January: 7.4 days
The month with the most sunshine days is June (15 days).
The months with the least sunshine days are March and April (7.1 days).
Average UV index in January
Grindavik, Iceland
- Average UV index in January: 2
The month with the highest UV index is July (UV index 4).
The months with the lowest UV index are January, February, March, April, May, October, November and December (UV index 2).
Average cloud cover in January
Grindavik, Iceland
- Average cloud cover in January: 67
The month with the most cloud cover is March (Cloud cover 69).
The months with the least cloud cover are May, July and August (Cloud cover 60).
Average visibility in January
Grindavik, Iceland
- Average visibility in January: 9km
The months with the highest visibility are June and August (10km).
The months with the lowest visibility are January, February, March, April, May, July, September, October, November and December (9km).
Grindavik, Iceland
Weather forecast for your location
2. Allow the app to use your location
