Weather in Helsinki in January 2025
Average weather
Average temperature in {destination} in {month}
The average maximum temperature goes {direction} {percent}% by the end of the month, compared with the beginning of the month, from {startTemperature} to {endTemperature}.
Is Helsinki warm or cold in January?
Helsinki is typically cold in January.
Maximum temperatures go down compared to the previous month from 0°C to -2°C. The minimum temperature also goes down from -4°C to -7°C.
Wear your winter warms as it will be cold. To save space, layer, and don’t forget gloves and a scarf.
January is one of the coolest months in Helsinki, here is the comparison with other months:
Water temperature in Helsinki in January
Water in Helsinki in January is Cold. It varies from -1°C to +3°C, with an average of +1°C. Note that the air temperature is lower than the water temperature, averaging around -2°C.
In January, water temperatures are average relative to the rest of the year:
Can you swim in Helsinki in January?
Climate in Helsinki in January
| December | January | February | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| 0°C | -2°C | -3°C | ||||
| Min. temperature | ||||||
| -24°C | -33°C | -29°C | ||||
| Max. temperature | ||||||
| +10°C | +9°C | +8°C | ||||
| Rainfall | ||||||
| 27 mm | 14 mm | 10 mm | ||||
| Wind | ||||||
| 5 m/s | 4 m/s | 4 m/s | ||||
| Avg. water temperature | ||||||
| +2°C | +1°C | 0°C | ||||
| Humidity | ||||||
| 87% | 87% | 85% | ||||
| Air pressure | ||||||
| 1008 HPa | 1008 HPa | 1011 HPa | ||||
| Sunny days | ||||||
| 2 | 2 | 3 | ||||
| Cloudy days | ||||||
| 9 | 11 | 11 | ||||
| Rainy days | ||||||
| 5 | 2 | 1 | ||||
| Snowy days | ||||||
| 15 | 16 | 12 | ||||
January weather is still as bad as in December. It’s getting colder in January. From 0°C in the day, the average maximum temperature lowers to -2°C. As January arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 27 mm to 14 mm. Humidity levels don’t change as the month goes on, averaging around 87%. Winds are calmer in comparison to December, going down from 5 m/s to 4 m/s on average. The amount of sunny days stay about the same, averaging 2 sunny days during the month.
But maybe it is worth considering traveling in February as the weather gets better.
Wind
The average wind speed is 8 m/s getting up to 12 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Helsinki is gradually increasing during January, going from 6 m/s to 9 m/s over the course of the month.
Rain
Snow
January is one of the snowiest months in Helsinki.
Here’s how January is compared with other months in the amount of snow, total mm:
How was the weather last January in Helsinki?
Climate Change over Years
The climate in Helsinki in January has not changed much over the last 43 years.
The average temperature was the lowest in 1987 (+5°C) and the highest in 2020 (+11°C). The driest year was 2002 with only 248 mm of rainfall, and the wettest year was 2020 with 1153 mm.
FAQ
Is January a good time to visit Helsinki?
Can you sunbathe in Helsinki in January?
Can you swim in Helsinki in January?
Is Helsinki rainy in January?
Is it sunny in Helsinki in January?
Other cities in Finland
Monthly weather in Helsinki
Source of the data
For this page, we’ve looked at the typical weather in Helsinki, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.