Lahti Weather in January
January in Lahti averages -2°C (28°F) during the day and -8°C (18°F) at night. Around 51 mm (2 in) of snowfall is typical for this time of year.
Rainfall in Lahti in January
Records from the past 30 years suggest around 20 days of snow, with 51 mm (2 in) average for the month. Expect plenty of grey, overcast days rather than intense storms. The rain rarely amounts to much on any given day.
Temperature in Lahti in January
In January, expect very low temperatures in Lahti, with highs of -2°C (28°F) and lows of -8°C (18°F) at night. This month falls in the winter season. Time outdoors is usually more comfortable with proper winter clothing and protection from wind. With overnight lows of -8°C (18°F), temperatures fall below freezing at night. An extra thick blanket can make a real difference if your accommodation runs cold. With temperatures this low, you'll need to dress warmly. Staying prepared is crucial to avoid the discomfort of the cold.January in Lahti has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Finland, check out our Lahti's climate page.
Lahti Temperature in January
Min Temperature
-8°C (18°F)
Max Temperature
-2°C (28°F)
Chance of Rain
68%
Precipitation
51 mm (2 in)
Rainy days
20 days
Daily Historical Temperatures
51-year average (1976-2026)
Based on our historical records, temperatures in Lahti typically stay consistent throughout January, with daily highs averaging around -2°C (28°F). Nights are very cold, with lows typically ranging from -11°C (12°F) to -7°C (19°F).
Average temperatures in January
Historical weather for Lahti in January
Browse day-by-day weather records for Lahti spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Lahti historical weather extremes in January
Based on 25 years of weather observations in Lahti between 2000 and 2025, these are the recorded extremes.
- Lahti recorded its highest January temperature of 8°C (46°F) on January 15, 2020.
Best Places in Finland in January
Find out more about the weather in Finland and which places have the best travel conditions in this month. See all of Finland in January →
perfect weather
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tolerable
unpleasant
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What to Wear in Lahti in January
We recommend you pack up your warm winter gear for Lahti in January. If you have insulated boots, thermal layers, and a heavy winter coat that can handle snow and freezing temperatures it's smart to bring them. Don't forget gloves, a warm hat, and a scarf. Rain is likely on several days, so bring a good rain jacket.What To Do in Lahti 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 Finland, check out our Lahti's climate page.
See the full Lahti climate overview or explore weather in Finland.
