Koszalin Weather in September

During September, Koszalin experiences pleasant daytime temperatures of 19°C (66°F) and cooler nights around 11°C (52°F). Expect quite a bit of rainfall. Around 79 mm (3.1 in) is typical.

Rainfall in Koszalin in September

Based on our climate data of the past 30 years, about 15 days of rain are anticipated, with 79 mm (3.1 in) on average. The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.

Temperature in Koszalin in September

Koszalin in September gets highs of 19°C (66°F) during the day and drops to 11°C (52°F) at night. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. At 11°C (52°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.

Sunshine in Koszalin in September

The city usually sees around 137 hours of sunlight, indicating a moderately sunny period.

For Koszalin itself, June, July and August generally stand out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.