Reykjavík Weather in January
With daytime temperatures of 3°C (37°F) and nighttime lows of -3°C (27°F), January in Reykjavík brings low temperatures during the day. Do keep in mind that quite a bit of snow/rainfall is typical. Around 138 mm (5.4 in) falls on average.
Rainfall in Reykjavík in January
This month experiences about 18 days of snow/rain according to historical data, averaging 138 mm (5.4 in). This month brings frequent, heavy showers. Both the number of wet days and the rainfall totals are on the high side.
Temperature in Reykjavík in January
If you're visiting Reykjavík in January, expect highs of 3°C (37°F) and overnight lows around -3°C (27°F). During January, the winter season is in full swing. Cold conditions tend to persist from morning through evening, so be prepared for winter weather. 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. Expect the coldest temperatures of the year this month. Make sure you have enough winter clothing to stay warm.
Sunshine in Reykjavík in January
The city usually sees around 20 hours of sunlight, indicating fewer sunny days.
Wind Speed in Reykjavík in January
Average wind conditions reach 6 m/s (12 knots) in January. This creates notably windy weather that is clearly felt and can influence daily activities. Keep in mind this is an average. Some days are less intense, while others can be quite gusty.
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.Our weather planner can help you find worldwide destinations with pleasant weather during this period. June and July typically offer the best weather for Reykjavík.
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 Reykjavík's climate page.
Reykjavík Temperature in January
Min Temperature
-3°C (27°F)
Max Temperature
3°C (37°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 Reykjavík typically stay consistent throughout January, with daily highs averaging around 3°C (37°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 Reykjavík in January
Browse day-by-day weather records for Reykjavík spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Reykjavík historical weather extremes in January
Based on 49 years of weather observations in Reykjavík between 1976 and 2025, these are the recorded extremes.
- The hottest January day on record in Reykjavík reached 10°C (50°F) (January 4, 2013).
- The lowest daytime temperature in January was -8°C (18°F), recorded on January 18, 1998.
- Nighttime temperatures dropped to -16°C (3°F) on January 31, 1979, marking the coldest January night on record.
- The wettest January day on record brought 50 mm (2 in) of precipitation to Reykjavík (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
pleasant
tolerable
unpleasant
poor
What to Wear in Reykjavík in January
We recommend to layer up for chilly conditions in Reykjavík 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. Expect water temperatures of around 6°C (43°F), which is definitely too cold for comfortable swimming. Your luggage space is better used for other items. Sunglasses aren't essential this month, though you might want them for the occasional bright moment.What To Do in Reykjavík 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 Reykjavík's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Reykjavík climate overview or explore weather in Iceland.
