Mosfellsbær
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Mosfellsbær Weather in March

March in Mosfellsbær averages 4°C (39°F) during the day and -3°C (27°F) at night. Quite a bit of snow/rainfall is typical this month, with around 133 mm (5.2 in) on average. An umbrella is a good idea.

Rainfall in Mosfellsbær in March

Based on our climate data of the past 30 years, about 19 days of snow/rain are anticipated, with 133 mm (5.2 in) on average. Wet weather is a regular and significant part of this month. Frequent days of rain combined with high totals means proper waterproofs are worth packing.

Temperature in Mosfellsbær in March

March in Mosfellsbær sees highs of 4°C (39°F) and lows of -3°C (27°F) overnight. Cold conditions tend to persist from morning through evening, so be prepared for winter weather. Nights are well below freezing at -3°C (27°F). An extra blanket is a good idea if you feel the cold, especially in older or less well-heated accommodation. This month is extremely cold, so be sure to dress in layers to keep warm. Proper preparation can help you stay comfortable.

Sunshine in Mosfellsbær in March

The month brings about 111 hours of sunlight, offering a comfortable mix of sun and overcast.

Wind Speed in Mosfellsbær in March

Wind speeds average 6 m/s (12 knots) during March. At this speed, expect strong winds that make large branches move and create some resistance when walking. Since this is an average, some days have fresh winds while others have strong breezes that can make umbrellas tricky to control.

Average water temperature in March

At 6°C (43°F), the water is very cold. Most people find it too uncomfortable for anything beyond a brief wade.

If you prefer dry days with pleasant temperatures, March may not be the ideal month to visit Mosfellsbær. Our weather planner can help you explore destinations with more pleasant weather conditions.

Mosfellsbær Temperature in March

Min Temperature
-3°C (27°F)
Max Temperature
4°C (39°F)
Water Temperature
6°C (43°F) *
Chance of Rain
64%
Precipitation
133 mm (5.2 in)
Rainy days
19 days
Humidity
77% *
Windspeed
6 m/s (12 knots) *
Sunshine
111 hours *
Percentage Sunshine
29% *
* Data from: Reykjavík, Iceland (10 KM, 6 Miles).

Mosfellsbær Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Mosfellsbær - and find the best time to visit.

Daily Historical Temperatures

50-year average (1976-2025)

Based on our historical records, temperatures in Mosfellsbær typically stay consistent throughout March, with daily highs averaging around 4°C (39°F). Nights are very cold, with lows typically ranging from -3°C (27°F) to -1°C (30°F).

Average temperatures in March

Daily Historical Precipitation

50-year average (1976-2025)

Average daily rainfall for each day of the month based on long-term records.

Average precipitation in March

Historical weather records for Mosfellsbær in March

Browse day-by-day weather records for Mosfellsbær spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Mosfellsbær historical weather extremes in March

According to our 50 years of weather records for Mosfellsbær, the following extremes were recorded between 1976 and 2026.

  • Mosfellsbær recorded its highest March temperature of 13°C (55°F) on March 20, 2005.
  • Mosfellsbær experienced its chilliest March day on March 6, 1998, reaching only -9°C (16°F).
  • The lowest overnight temperature recorded in March was -14°C (7°F) (March 7, 1998).

Best Places in Iceland in March

Find out more about the weather in Iceland and which places have the best travel conditions in this month. See all of Iceland in March →

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Mosfellsbær in March

Cold weather calls for smart layering in March. A thermal base layer makes a huge difference in staying warm. Add a wool sweater or fleece, then a wind-resistant outer jacket. Prepare for significant rainfall with proper waterproof clothing and shoes. With water temperatures around 6°C (43°F), the water is quite cold for swimming. You can skip the swimwear unless you're particularly tough. Bring sunglasses since you'll have some sunny periods throughout the month

What To Do in Mosfellsbær in March

We rated the following activities from 1 (least suitable) to 10 (best) to do.

  • Swimming
    5/10
  • Cycling
    3/10
  • Walking
    3/10
  • Camping
    1/10
  • Outdoor sports
    3/10

Mosfellsbær 3-Day Forecast

More climate data for Mosfellsbær

Popular in March

Where to go in March - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.