Seinäjoki Weather in January
January in Seinäjoki averages -2°C (28°F) during the day and -9°C (16°F) at night. Around 41 mm (1.6 in) of snowfall is typical for this time of year.
Rainfall in Seinäjoki in January
You can expect snow on around 21 days based on historical patterns, with 41 mm (1.6 in) average for the month. With rain spread across many days but low totals, showers are typically short and light rather than heavy.
Temperature in Seinäjoki in January
Daytime temperatures in Seinäjoki reach -2°C (28°F) in January, dropping to -9°C (16°F) at night. The winter season is characteristic of January. Time outdoors is usually more comfortable with proper winter clothing and protection from wind. At -9°C (16°F) overnight, frost and ice are likely outside. Indoors, consider packing an extra blanket if you're unsure about the heating. The coldest month of the year calls for plenty of warm layers. Be sure to pack your winter gear.
Sunshine in Seinäjoki in January
The month is characterized by fewer sunny days, with roughly 29 hours hours of sunshine. Ideal for those who prefer a cooler, cloudier climate.Our weather planner can help you find worldwide destinations with pleasant weather during this period. June, July and August typically offer the best weather for Seinäjoki.
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 Seinäjoki's climate page.
Seinäjoki Temperature in January
Min Temperature
-9°C (16°F)
Max Temperature
-2°C (28°F)
Chance of Rain
70%
Precipitation
41 mm (1.6 in)
Rainy days
21 days
Sunshine
29 hours *
Percentage Sunshine
*
Daily Historical Temperatures
51-year average (1976-2026)
Based on our historical records, temperatures in Seinäjoki typically stay consistent throughout January, with daily highs averaging around -2°C (28°F). Nights are very cold, with lows typically ranging from -13°C (9°F) to -8°C (18°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 Seinäjoki in January
Browse day-by-day weather records for Seinäjoki spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Seinäjoki historical weather extremes in January
Based on 49 years of weather observations in Seinäjoki between 1976 and 2025, these are the recorded extremes.
- On January 21, 2020, temperatures climbed to 10°C (50°F), marking the warmest January day on record.
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
What to Wear in Seinäjoki in January
We recommend you pack up your warm winter gear for Seinäjoki 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. With limited sunshine expected, sunglasses aren't a priority for packing.What To Do in Seinäjoki 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 Seinäjoki's climate page.
See the full Seinäjoki climate overview or explore weather in Finland.
