Garðabær Weather in January
Garðabær in January sees low daytime temperatures of 4°C (39°F) and nighttime lows of -3°C (27°F). Rainfall is fairly high this month at around 138 mm (5.4 in), so pack a rain jacket to stay dry.
Rainfall in Garðabær in January
Typically, about 18 days will experience snow/rainfall, with an average of 138 mm (5.4 in) for the month. This month brings frequent, heavy showers. Both the number of wet days and the rainfall totals are on the high side.
Temperature in Garðabær in January
January in Garðabær brings low temperatures, with highs of 4°C (39°F) and nights around -3°C (27°F). January marks the winter season. It stays very cold throughout much of the day, so warm winter clothing is essential. With lows of -3°C (27°F), nights are freezing. Packing a spare blanket is worth considering if you're staying somewhere that might not be fully heated. During the coldest month of the year, be prepared to bundle up with heavy winter gear.
Sunshine in Garðabær in January
The area sees fewer sunny days, with a projection of about 20 hours of sunshine. This reduced sunlight makes it ideal for those who prefer overcast conditions over bright sunny days.
Wind Speed in Garðabær in January
January sees wind speeds averaging 6 m/s (12 knots). You'll experience strong winds that cause whole trees to sway and require effort when walking against them. As an average, expect variation from moderate breezes to particularly windy days that affect daily routines.
Average water temperature in January
The water sits at 6°C (43°F) this month, which is well below what most people consider swimmable. Wetsuits help, but expect it to still feel cold.If you prefer dry days with pleasant temperatures, January 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 January
Min Temperature
-3°C (27°F)
Max Temperature
4°C (39°F)
Water Temperature
6°C (43°F) *
Chance of Rain
61%
Precipitation
138 mm (5.4 in)
Rainy days
18 days
Humidity
78% *
Windspeed
6 m/s (12 knots) *
Sunshine
20 hours *
Percentage Sunshine
12% *
Daily Historical Temperatures
51-year average (1976-2026)
Based on our historical records, temperatures in Garðabær typically stay consistent throughout January, with daily highs averaging around 4°C (39°F). Nights are very cold, with lows around -2°C (28°F).
Average temperatures in January
Daily Historical Precipitation
51-year average (1976-2026)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in January
Historical weather for Garðabær in January
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 January
Based on weather observations in Garðabær between 1976 and 2025, these are the recorded extremes during January.
- Garðabær recorded its highest January temperature of 10°C (50°F) on January 4, 2013.
- On January 15, 2023, Garðabær saw its coldest January day with temperatures maxing out at -8°C (18°F).
- The coldest night in January in Garðabær was on January 31, 1979, with a minimum of -16°C (3°F).
- The wettest January day on record brought 49 mm (1.9 in) of precipitation to Garðabær (January 29, 1982).
Best Places in Iceland in January
Find out more about the weather in Iceland and which places have the best travel conditions in this month. See all of Iceland in January →
perfect weather
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tolerable
unpleasant
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What to Wear in Garðabær in January
We recommend to layer up for chilly conditions in Garðabær in January. You could start with thermal underwear or a good base layer to keep your core warm on the cooler days this month. Maybe also add a sweater or fleece, and top it off with a windproof jacket. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. The water temperature sits at about 6°C (43°F), which is too chilly for most people to enjoy swimming. Leave the swimsuit at home unless you love cold water. With limited sunshine expected, sunglasses aren't a priority for packing.What To Do in Garðabær in January
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.
