Sastamala weather in December (Western Finland, Finland)

Is Sastamala a good destination in December, weather-wise? Find all the essential weather information for this month in our guide.

Temperatures

In December, the weather in Sastamala generally includes very low temperatures and moderate snow/rainfall. December is known for being in the winter season. Expect daytime highs to reach approximately 1°C, with nighttime lows dipping to around -5°C. Prepare for a very cold month by layering your clothing. It's always better to be prepared for the cold than to face it unprotected.

Precipitation

Sastamala in December usually receives moderate snow/rainfall, averaging around 55 mm for the month. Typically, you can expect about 22 days of snow/rain this month.

Average sunshine

The city usually sees around 27 hours of sunlight, indicating fewer sunny days.

If you prefer dry days with pleasant temperatures, December may not be the ideal month to visit Sastamala. June, July and August typically offer the most optimal weather. In contrast, January, February, March, April, October, November and December tend to have less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Sastamala climate page with graphs.

 

Sastamala, monthly averages in December

Min Temperature -5°C  

Max Temperature 1°C  

Chance of Rain 73%  

Precipitation 55 mm  

Rainy days 22 days  

Sunshine 27 hours *  

Percentage Sunshine *  

* Data from: Jokioinen, Finland (66 KM, 41 Miles).

Where to go in Finland in December

Find out more about the weather in Finland and which places have the best travel conditions in this month.

Weather conditions Weather

Temperatures

Precipitation

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Legend perfect weather pleasant tolerable unpleasant poor

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

So, what should you wear in this month?

Wear a base layer in cold weather; this is the #1 thing you can do to increase your overall body temperature.

What To Do

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

Interested in more climate information?

This site provides you with all the information you need about the climate in Sastamala.

Our site offers climate and forecast data for every country in the world. Are you going to Finland? On this website you can find historical weather averages for many cities in Finland. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.