Ahtari Weather in December
December in Ahtari averages -1°C (30°F) during the day and -7°C (19°F) at night. Around 57 mm (2.2 in) of snowfall is typical for this time of year.
Rainfall in Ahtari in December
Typically, about 20 days will experience snowfall, with an average of 57 mm (2.2 in) for the month. Rain falls on many days this month, but usually in relatively small amounts. A light waterproof is more useful than a heavy umbrella.
Temperature in Ahtari in December
In December, expect very low temperatures in Ahtari, with highs of -1°C (30°F) and lows of -7°C (19°F) at night. The winter season is characteristic of December. It stays very cold throughout much of the day, so warm winter clothing is essential. Nights are well below freezing at -7°C (19°F). An extra blanket is a good idea if you feel the cold, especially in older or less well-heated accommodation. As one of the coldest months, it's important to layer up to stay warm. Don't let the chill catch you off-guard.
Wind Speed in Ahtari in December
December sees wind speeds averaging 2 m/s (4 knots). You'll typically experience pleasant light breezes that move leaves slightly and feel refreshing. As an average, expect variation from very calm days to periods with more apparent air movement.December in Ahtari 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 Ahtari's climate page.
Ahtari Temperature in December
Min Temperature
-7°C (19°F)
Max Temperature
-1°C (30°F)
Chance of Rain
67%
Precipitation
57 mm (2.2 in)
Rainy days
20 days
Humidity
90%
Windspeed
2 m/s (4 knots)
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Ahtari typically drop from around -1°C (30°F) at the start of December to approximately -4°C (25°F) by the end. Nights are very cold, with lows typically ranging from -11°C (12°F) to -6°C (21°F).
Average temperatures in December
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in December
Historical weather for Ahtari in December
Browse day-by-day weather records for Ahtari spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Ahtari historical weather extremes in December
According to our 49 years of weather records for Ahtari, the following extremes were recorded between 1976 and 2025.
- Ahtari recorded its highest December temperature of 8°C (46°F) on December 20, 2015.
- The heaviest December precipitation occurred on December 14, 2024, when 15 mm (0.6 in) of precipitation fell.
Best Places in Finland in December
Find out more about the weather in Finland and which places have the best travel conditions in this month. See all of Finland in December →
perfect weather
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tolerable
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What to Wear in Ahtari in December
Winter clothing is essential for visiting Ahtari in December. If you have a heavy coat, waterproof boots with good traction, and plenty of warm layers it's smart to bring them. Pack cloths like thermal underwear, wool socks, and insulated gloves. Rain gear is recommended, you can expect wet weather on multiple days.What To Do in Ahtari in December
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 Ahtari's climate page.
Temperature Rainfall Humidity Wind Speed
See the full Ahtari climate overview or explore weather in Finland.
