Mosfellsbær Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Mosfellsbær.
Climate overview of Mosfellsbær
Temperatures in Mosfellsbær, Capital Region, Iceland, vary greatly throughout the year. July is the hottest month at 16°C (61°F), while January is the coldest at 3°C (37°F).
The city has a wet climate, receiving around 1480 mm (58 in) of rain/snowfall per year. Despite the high annual total, it has mild summers and cold winters. February is the wettest month. May is the sunniest month, averaging 6.7 hours of sunshine per day.
Mosfellsbær Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Mosfellsbær - and find the best time to visit.
Monthly Temperature in Mosfellsbær
The climate in Mosfellsbær is known for significant temperature differences throughout the year, making the weather dynamic. On average, daytime temperatures range from a moderate 16°C (61°F) in July to a chilly 3°C (37°F) in January.
Nighttime temperatures range from 9°C (48°F) in July to -4°C (25°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Mosfellsbær
Mosfellsbær has a notably wet climate with abundant precipitation, recording 1480 mm (58 in) of rain/snowfall per year. The amount of precipitation varies moderately throughout the year. The wettest month, February, sees around 154 mm (6.1 in) of snow/rainfall, perfect for those who enjoy a bit of snow/rain now and then. The driest month, June, still receives a respectable 89 mm (3.5 in) of rainfall. For more details, please visit our Mosfellsbær Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Mosfellsbær
In Mosfellsbær, summer days are longer and more sunny, with daily sunshine hours peaking at 6.7 hours in May. As the darker season arrives, the brightness of the sun becomes less. January sees a soft sun for only 0.7 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Water Temperature in Mosfellsbær
The mean water temperature over the year ranges from 6°C (43°F) in January to 11°C (52°F) in July.
Water temperature over the year
Humidity in Mosfellsbær by Month
The relative humidity is high throughout the year in Mosfellsbær.
The city experiences its highest humidity in July, reaching 81%. In May, the humidity drops to its lowest level at 76%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Wind Speed in Mosfellsbær
The average wind speed over the year ranges from 4 m/s (8 knots) to 6 m/s (12 knots). It is lower in July and higher in January, February, March, April, November and December. What does this mean?
The mean monthly wind speed over the year (meters per second)
Best Time to Visit Mosfellsbær
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: June and July
- Warmest weather: July and August
- Most sunshine: May
- Seasonal pattern: Mild summers and cold winters
- Coldest conditions: January, with freezing nights around -4°C (25°F).
Frequently asked questions about the climate in Mosfellsbær
What is the best time to visit Mosfellsbær?
June and July typically offer the most optimal weather in Mosfellsbær. In contrast, January, February, March, April, May, September, October, November and December tend to have less optimal conditions. Mosfellsbær has mild summers and cold winters.
What temperatures can I expect in Mosfellsbær?
Daytime highs range from 3°C (37°F) in January to 16°C (61°F) in July. Nighttime lows range from -4°C (25°F) to 9°C (48°F). Temperatures vary considerably through the year.
How much rain does Mosfellsbær get?
Annual rainfall is around 1480 mm (58 in). February is the wettest month with 154 mm (6.1 in), while June is the driest with 89 mm (3.5 in). In the coldest months, precipitation may fall as snow/rain.
How sunny is Mosfellsbær?
Mosfellsbær receives around 1,327 hours of sunshine per year. May is the sunniest month with 201 hours, while January is the cloudiest with just 20 hours.
Mosfellsbær 3-Day Forecast
Mosfellsbær on the map
Mosfellsbær is highlighted - select any city to see its climate.
Popular this month
Where to go in August - average daytime high across popular destinations.
Hella
16°C (61°F) Selfoss15°C (59°F) Reykjavík15°C (59°F) Kópavogur15°C (59°F) Egilsstadir
13°C (55°F) Keflavík13°C (55°F) Höfn
12°C (54°F) Akureyri13°C (55°F) 
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
Iceland Airwaves Festival
On its way to its 20th edition in 2019 Iceland Airwaves is a festival you need to visit once in your life. Everything from lagoons and bookstores to bars and concert halls is filled with music.
Where to stay in Iceland: Nordic idyll that feels like home
If you are travelling to Iceland for the first time, the Golden Circle will probably make it onto your bucket list. Geysir Hestar is located right in between two spectacular sights of the Golden Circle.
See the northern lights
The northern lights, polar light or Aarora Borealis is a true spectacle of nature! Green, sometimes purple, red and yellow streaks of light colors the dark skies.