Lahti
Weather by month
Current –

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.

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

Lahti Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Lahti - and find the best time to visit.

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 records 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
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

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.

  • Cycling
    1/10
  • Walking
    1/10
  • Barbeque
    1/10
  • Camping
    1/10
  • Outdoor sports
    1/10

Lahti 3-Day Forecast

More climate data for Lahti

Popular in January

Where to go in January - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.