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Naantali Weather and Climate: A Comprehensive Guide

Naantali experiences great temperature shifts. The city's weather can transition from warm days to very cold weather. It receives a reasonable amount of rain/snowfall. Now, let’s break down all the climate details for a clearer picture.

Average maximum day and minimum night temperature

The climate in Naantali is known for significant temperature differences throughout the year, making the weather dynamic. Average daytime temperatures reach a comfortable 22°C in July. In February, the coolest month of the year, temperatures drop to a very cold -0°C.

At night, you can expect cooler temperatures, with averages dropping to around -7°C during this month. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Generally, Naantali receives mid-range precipitation levels, with 722 mm annually. Naantali experiences moderate seasonal variation in rainfall, with monthly averages ranging from 81 mm in August, the wettest month, and 38 mm in April, the driest month.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

Naantali can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 9.6 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 0.9 hours of sunlight per day. Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: Turku, Finland (13 KM, 8 Miles).

Daily hours of sunshine

Data from: Turku, Finland (13 KM, 8 Miles).

Forecast for Naantali

Wed   Jan 15
3°C | -2°C
SW 4 m/s
overcast and no rain

overcast and no rain

Thu   Jan 16
6°C | 2°C
W 4 m/s
almost clear and no rain

almost clear and no rain

Fri   Jan 17
5°C | 1°C
SW 4 m/s
broken clouds and no rain

broken clouds and no rain

Select a Month of Interest

Check the conditions for any month of the year.

The best time of year to visit Naantali in Finland

During the months of July and August you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • When is winter in Naantali?
    The coldest season / winter is in the following months: January, February and December.
  • Which is the warmest month in Naantali?
    July has an average maximum temperature of 22°C and is the warmest month of the year.
  • Which is the coldest month in Naantali?
    The coldest month is February with an average maximum temperature of -0°C.
  • Which is the wettest month in Naantali?
    August tops the wettest month list with 81 mm of rainfall.
  • Which is the driest month in Naantali?
    April is the driest month with 38 mm of precipitation.
  • Which is the sunniest month in Naantali?
    July is the sunniest month with an average of 288 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.