Climate ▸Forecast ▸December ▸January ▸
JanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember

Sastamala Weather in December

December in Sastamala sees daytime temperatures around 1°C (34°F) and lows of -5°C (23°F) at night. Pack a rain jacket because some snow/rainfall is likely.

Rainfall in Sastamala in December

Looking at the last 30 years, the data shows about 22 days with snow/rain, averaging 55 mm (2.2 in) for the month. Rain is frequent but mostly light this month, with brief showers more common than heavy downpours.

Temperature in Sastamala in December

If you're visiting Sastamala in December, expect highs of 1°C (34°F) and overnight lows around -5°C (23°F). During December, the winter season is in full swing. Even daytime conditions remain cold, making layers, a warm coat, and winter accessories a good idea. Nights are well below freezing at -5°C (23°F). An extra blanket is a good idea if you feel the cold, especially in older or less well-heated accommodation. The month is chilly, so ensure you're equipped and dress warmly. Preparation becomes key in these temperatures.

Sunshine in Sastamala in December

This month sees fewer sunny days, with about 27 hours of sunshine, perfect for those who enjoy cooler temperatures.

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 Sastamala.

Select a Month

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 Sastamala's climate page.

Sastamala Temperature in December

Min TemperatureMin Temperature -5°C (23°F)  
Max TemperatureMax Temperature 1°C (34°F)  
Chance of RainChance of Rain 73%  
PrecipitationPrecipitation 55 mm (2.2 in)  
Rainy daysRainy days 22 days  
SunshineSunshine 27 hours *  
Percentage SunshinePercentage Sunshine *  
* Data from: Jokioinen, Finland (66 KM, 41 Miles).

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 →

Map not visible? Whoops sorry! Please refresh the page.
Legend 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 Sastamala in December

Dress warmly and in layers for your trip to Sastamala in December. A good base layer system works wonders. Start with good thermal underwear, add something warm like a fleece sweater, then finish with a waterproof jacket on top. Wet weather is likely, so pack waterproof gear for multiple rainy days. With limited sunshine expected, sunglasses aren't a priority for packing.

What To Do in Sastamala in December

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming
4/10
Cycling
2/10
Walking
2/10
Camping
1/10
Outdoor sports
2/10

Select a Month

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 Sastamala's climate page.

More climate data for Sastamala