Garðabær Weather in March
March in Garðabær brings low temperatures around 5°C (41°F) during the day, dropping to -2°C (28°F) at night, with quite a bit of snow/rainfall expected, averaging around 128 mm (5 in) for the month.
Rainfall in Garðabær in March
You can expect snow/rain on around 19 days based on historical patterns, with 128 mm (5 in) average for the month. 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 Garðabær in March
Daytime highs in Garðabær in March reach 5°C (41°F), with nights around -2°C (28°F). Time outdoors is usually more comfortable with proper winter clothing and protection from wind. With lows of -2°C (28°F), nights are freezing. Packing a spare blanket is worth considering if you're staying somewhere that might not be fully heated. The month is chilly, so ensure you're equipped and dress warmly. Preparation becomes key in these temperatures.
Sunshine in Garðabær in March
You can expect a moderate amount of sunlight, with approximately 111 hours. This means a pleasant mix of sun and overcast.
Wind Speed in Garðabær 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're looking for dry conditions and comfortable temperatures, March may not be the ideal month to visit Garðabær. Our weather planner can help you explore destinations with more pleasant weather conditions.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Iceland, check out our Garðabær's climate page.
Garðabær Temperature in March
Min Temperature
-2°C (28°F)
Max Temperature
5°C (41°F)
Water Temperature
6°C (43°F) *
Chance of Rain
64%
Precipitation
128 mm (5 in)
Rainy days
19 days
Humidity
77% *
Windspeed
6 m/s (12 knots) *
Sunshine
111 hours *
Percentage Sunshine
29% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Garðabær typically stay consistent throughout March, with daily highs averaging around 5°C (41°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 for Garðabær in March
Browse day-by-day weather records for Garðabær spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Garðabær historical weather extremes in March
According to our 50 years of weather records for Garðabær, the following extremes were recorded between 1976 and 2026.
- On March 20, 2005, temperatures climbed to 13°C (55°F), marking the warmest March day on record.
- The lowest daytime temperature in March was -9°C (16°F), recorded on March 6, 1998.
- Nighttime temperatures dropped to -14°C (7°F) on March 7, 1998, marking the coldest March night on record.
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 →
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What to Wear in Garðabær 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. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.What To Do in Garðabær in March
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Iceland, check out our Garðabær's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Garðabær climate overview or explore weather in Iceland.
