Iceland Weather by Month: Temperature, Wind, UV
What is the average monthly temperature in Iceland?
The average monthly temperature in Iceland ranges from -1.8°C (28.7°F) in January to 12.5°C (54.4°F) in August. Iceland temperature by month is given in the table below.
| Month | Celsius | Fahrenheit |
|---|---|---|
| January | -1.8°C | 28.8°F |
| February | 2.5°C | 36.5°F |
| March | -1.2°C | 29.8°F |
| April | 5.6°C | 42.1°F |
| May | 7.3°C | 45.1°F |
| June | 10.0°C | 50.0°F |
| July | 11.8°C | 53.2°F |
| August | 12.5°C | 54.5°F |
| September | 8.9°C | 48.0°F |
| October | 5.6°C | 42.1°F |
| November | 3.4°C | 38.1°F |
| December | -1.0°C | 30.2°F |
What is the hottest month in Iceland?
The hottest months in Iceland are August, July and June. During August the average temperature outside is 12.5°C (54.5°F), in July it is 11.8°C (53.2°F) and during June the air temperature is around 10°C (50°F).
What is the coldest month in Iceland?
The coldest months in Iceland are January, March and December. In January the average air temperature drops to -1.8°C (28.8°F), in March air temperature is -1.2°C (29.8°F) and during December it is -1°C (30.2°F).
How much does it rain on average in Iceland?
On average it rains for 12 month(s) in Iceland with an average of 26.6 days of rain per month. In total Iceland has 319 rainy days in a year.
When does it rain the most in Iceland?
In Iceland it rains the most during the following months.
- October - on average 4.28mm (0.17 inches) of rainfall per day.
- February - on average 4.12mm (0.16 inches) of rainfall per day.
- May - on average 4.03mm (0.16 inches) of rainfall per day.
- June - on average 2.77mm (0.11 inches) of rainfall per day.
- April - on average 2.69mm (0.11 inches) of rainfall per day.
- September - on average 2.15mm (0.08 inches) of rainfall per day.
Does it snow in Iceland?
Yes, it snows in Iceland. The following months have the most amount of snow.
- January. Iceland has 0.5mm (0.02 inches) of snowfall and 2.45 mm (0.1 inches) of snow on the ground in January.
- December. Iceland has 0.1mm (0 inches) of snowfall and 0.01 mm (0 inches) of snow on the ground in December.
- February. Iceland has 0.06mm (0 inches) of snowfall and 0.1 mm (0 inches) of snow on the ground in February.
- March. Iceland has 0.03mm (0 inches) of snowfall and 0.01 mm (0 inches) of snow on the ground in March.
- April. Iceland has 0.01mm (0 inches) of snowfall and 0.01 mm (0 inches) of snow on the ground in April.
- November. Iceland has 0.01mm (0 inches) of snowfall and 0 mm (0 inches) of snow on the ground in November.
When is it windy in Iceland?
The windiest months in Iceland are February, May and January. In February the average windspeed is 40.1 km/h (24.9 mph), during May the windspeed is 31.7 km/h (19.7 mph) and in January the windspeed is 30.8 km/h (19.1 mph).
What are the least windy months in Iceland?
The least windy months in Iceland are August, July and June. In August the average windspeed is 19.1 km/h (11.9 mph), during July the windspeed is 22.7 km/h (14.1 mph) and in June the windspeed is 23.3 km/h (14.5 mph).
When is it cloudy in Iceland?
The cloudiest months in Iceland are May, June and February. On average in May 88.6% of sky is covered by clouds, in June 88.4% is covered by clouds and in February clouds cover about 85.9% of sky.
When does Iceland have the clearest sky?
Iceland has the clearest sky in March, January and December. In March 60% of sky is covered by clouds, in January clouds cover around 65.2% and during December clouds cover about 66.2% of sky.
What is the average daylight duration in Iceland?
The average daylight duration in Iceland is 11 hours 37 minutes 42 seconds.
Which months have the most daylight in Iceland?
The longest days in Iceland are during July, May and August.
- July - 19 hours 35 minutes 24 seconds of daylight.
- May - 18 hours 27 minutes 56 seconds of daylight.
- August - 16 hours 20 minutes 15 seconds of daylight.
Which months have the least daylight in Iceland?
The shortest days in Iceland are during December, January and November.
- December - 4 hours 22 minutes 17 seconds of daylight.
- January - 5 hours 33 minutes 20 seconds of daylight.
- November - 6 hours 31 minutes 7 seconds of daylight.
What are the humidity levels in Iceland throughout the year?
Humidity levels in Iceland range from 58.2% in March to 81.8% in June.
What are the pressure levels in Iceland throughout the year?
Pressure levels in Iceland change from 998.5 mb (millibars) in January to 1013.3 mb in March.
What is the visibility in Iceland throughout the year?
Visibility in Iceland changes from lowest 10.9 km (6.8 miles) in February to highest 18 km (11.2 miles) in March.
What are the UV levels in Iceland throughout the year?
UV levels change in Iceland from 0 in October to 2 in March.
Which months have the highest UV levels in Iceland throughout the year?
In Iceland the highest UV index is during March, June and April. During March the average UV index is 2, in June UV level is 1.7 and in April UV index is around 1.5.
Which months have the lowest UV levels in Iceland throughout the year?
The lowest UV levels in Iceland are in October, December and November. In October the average UV index is around 0, in December UV index is 0 and during November UV level is 0.1.