Sejny Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Sejny.
Climate overview of Sejny
Sejny, Podlaskie, Poland, experiences significant temperature variation throughout the year. Summers bring daytime highs of 24°C (75°F) in July, while winters cool to 1°C (34°F) in January.
Annual rain/snowfall is moderate at around 719 mm (28 in), with July being the wettest month.
Sejny Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Sejny — and find the best time to visit.
Monthly Temperature in Sejny
Depending on the time of the year, temperatures range from comfortable to very cold in Sejny. Average daytime temperatures reach a comfortable 24°C (75°F) in July. In January, the coolest month of the year, temperatures drop to a very cold 1°C (34°F).
At night, temperatures range from around 14°C (57°F) in July to -5°C (23°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Sejny
Generally, Sejny has a moderate amount of precipitation, averaging 719 mm (28 in) of rain/snowfall annually. Sejny experiences moderate seasonal variation in rainfall, with monthly averages ranging from 91 mm (3.6 in) in July, the wettest month, and 45 mm (1.8 in) in March, the driest month. For more details, please visit our Sejny Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Best Time to Visit Sejny
Rainfall during this time ranges from 62 mm (2.4 in) in September to 91 mm (3.6 in) in July. This means you can expect a mix of sunny days and occasional showers. Ready to plan your travels but need destination ideas? Our smart tool recommends places based on the climate conditions you prefer. Start planning with our destination weather tool.
Frequently asked questions about the climate in Sejny
What is the best time to visit Sejny?
June, July and August typically offer the most optimal weather in Sejny. In contrast, January, February, March, November and December tend to have less optimal conditions.
What temperatures can I expect in Sejny?
Daytime highs range from 1°C (34°F) in January to 24°C (75°F) in July. Nighttime lows range from -5°C (23°F) to 14°C (57°F). Temperatures vary considerably through the year.
How much rain does Sejny get?
Annual rainfall is around 719 mm (28 in). July is the wettest month with 91 mm (3.6 in), while March is the driest with 45 mm (1.8 in).
Sejny 3-Day Forecast
Sejny 3-Day Forecast
Sejny on the map
Sejny is highlighted — select any city to see its climate.
Popular this month
Where to go in June — average daytime high across popular destinations.
Kraków
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20°C (68°F) Sopot
20°C (68°F) Gdynia19°C (66°F) 
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