Posio Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Posio.
Climate overview of Posio
Posio, Lapland, Finland, sees big temperature differences between seasons, with July peaking at 20°C (68°F) and January dropping to -7°C (19°F).
The city receives around 730 mm (29 in) of rain/snowfall per year. It experiences pleasant summers and very cold winters. July is the wettest month and March the driest.
Posio Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Posio - and find the best time to visit.
Monthly Temperature in Posio
Visitors to Posio can expect significant temperature changes throughout the year. On average, daytime temperatures range from a pleasant 20°C (68°F) in July to a very cold -7°C (19°F) in January.
Nighttime temperatures range from 11°C (52°F) in July to -14°C (7°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Posio
Generally, Posio experiences moderate precipitation patterns, averaging 730 mm (29 in) yearly. The seasons in Posio bring significant changes in precipitation. The wettest month, July, receives moderate rainfall, with an average of 97 mm (3.8 in) of precipitation. This rainfall is distributed across 16 rainy days.
In contrast, the driest month, March, experiences much less snowfall, totaling 39 mm (1.5 in) over 17 snowy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Posio Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Humidity in Posio by Month
The city experiences its highest humidity in November, reaching 90%. In June, the humidity drops to its lowest level at 67%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Posio
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: July
- Warmest weather: July
- Seasonal pattern: Pleasant summers and very cold winters
- Coldest conditions: January, with freezing nights around -14°C (7°F).
Frequently asked questions about the climate in Posio
What is the best time to visit Posio?
July typically offers the most optimal weather in Posio. In contrast, January, February, March, April, May, October, November and December tend to have less optimal conditions. Posio has pleasant summers and very cold winters.
What temperatures can I expect in Posio?
Daytime highs range from -7°C (19°F) in January to 20°C (68°F) in July. Nighttime lows range from -14°C (7°F) to 11°C (52°F). Temperatures vary considerably through the year.
How much rain does Posio get?
Annual rainfall is around 730 mm (29 in). July is the wettest month with 97 mm (3.8 in), while March is the driest with 39 mm (1.5 in).
Posio 3-Day Forecast
Posio on the map
Posio is highlighted - select any city to see its climate.
Popular this month
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Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
Air Guitar World Championship Finland
This is something you might want to add to your bucket list. August is also the perfect time to visit Finland. The days are long and the temperature is amazing.
Sleeping in a glass iglo in Finland
Sleeping in a glass igloo with the Northern Lights shining above you. The most famous place is in the Iglo village in Kakslattaunen. The idea is amazing and definitely something to add to your bucket list.
See the northern lights
The northern lights, polar light or Aarora Borealis is a true spectacle of nature! Green, sometimes purple, red and yellow streaks of light colors the dark skies.