Käsmu Weather in December
December in Käsmu brings low temperatures, with daytime highs of 2°C (36°F) and nights around -2°C (28°F). Quite a bit of snow/rainfall is expected, around 60 mm (2.4 in), so pack an umbrella.
Rainfall in Käsmu in December
Historically, December sees about 19 days of snow/rain, with a monthly average of 60 mm (2.4 in). Expect plenty of grey, overcast days rather than intense storms. The rain rarely amounts to much on any given day.
Temperature in Käsmu in December
Käsmu in December gets highs of 2°C (36°F) during the day and drops to -2°C (28°F) at night. Expect a distinctly cold feel throughout the day, not just overnight. Nights drop below freezing to -2°C (28°F). An extra blanket is worth packing if you're unsure about the heating where you're staying. This month is particularly chilly, so wearing layers is necessary to stay warm and comfortable.
Sunshine in Käsmu in December
The area sees fewer sunny days, with a projection of about 21 hours of sunshine. This reduced sunlight makes it ideal for those who prefer overcast conditions over bright sunny days.If you're looking for dry conditions and comfortable temperatures, December may not be the ideal month to visit Käsmu. Our weather planner can help you explore destinations with more pleasant weather conditions.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Estonia, check out our Käsmu's climate page.
Käsmu Temperature in December
Min Temperature
-2°C (28°F)
Max Temperature
2°C (36°F)
Chance of Rain
63%
Precipitation
60 mm (2.4 in)
Rainy days
19 days
Humidity
89% *
Sunshine
21 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Käsmu typically stay consistent throughout December, with daily highs averaging around 2°C (36°F). Nights are very cold, with lows typically ranging from -5°C (23°F) to -2°C (28°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 Käsmu in December
Browse day-by-day weather records for Käsmu spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Käsmu historical weather extremes in December
The extremes listed below come from historical weather data collected in Käsmu from 1976 through 2025.
- On December 20, 2015, temperatures climbed to 10°C (50°F), marking the warmest December day on record.
Best Places in Estonia in December
Find out more about the weather in Estonia and which places have the best travel conditions in this month. See all of Estonia in December →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Käsmu in December
Cold weather calls for smart layering in December. A thermal base layer makes a huge difference in staying warm. Add a wool sweater or fleece, then a wind-resistant outer jacket. Rain gear is recommended, you can expect wet weather on multiple days. Sunglasses aren't essential this month, though you might want them for the occasional bright moment.What To Do in Käsmu 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 Estonia, check out our Käsmu's climate page.
Temperature Rainfall Sunshine Humidity
See the full Käsmu climate overview or explore weather in Estonia.
