September weather forecast
Poland

September marks the start of autumn in Poland. However, the transition from summer is often gradual, and the early part of the month can still be relatively warm. Average temperatures during this month range from 12°C (53.6°F) to 16°C (60.8°F), signifying a cool down from the hotter summer months.

In Warsaw, temperatures can fluctuate between 14°C (57.2°F) and 18°C (64.4°F). The coastal city of Gdansk experiences cooler conditions due to the influence of the Baltic Sea, with average temperatures ranging from 12°C (53.6°F) to 16°C (60.8°F). Zakopane, in the southern Tatra Mountains, sees a noticeable drop in temperature, with averages between 9°C (48.2°F) and 13°C (55.4°F).

Precipitation in September is lower compared to the summer months, with averages between 40mm (1.57") to 50mm (1.97"). Most of this falls as rain, but the weather remains predominantly clear and bright.

The hours of daylight continue to decrease in September, with approximately 12 to 13 hours of daylight at the start of the month, reducing to 11 to 12 hours by the end. Despite the shorter days, the weather is generally clear, offering excellent conditions for outdoor activities.

The arrival of autumn in September brings about a significant transformation in the landscapes. The lush greenery of summer begins to give way to a palette of rich autumnal hues. This is a great time to visit national parks and forests to witness the changing colors of the foliage.

September in Poland can be seen as a time of calm and tranquility. The warmth of summer is fading, and the chill of winter is yet to set in, creating an agreeable climate that is neither too hot nor too cold. This makes it an excellent month for exploring the cultural and natural offerings of the country without the summer crowds.

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• Warsaw - September »
  Transition into September in Warsaw marks a drop in the average high-temperature, moving from a moderately hot 23.4°C (74.1°F) in August to an enjoyable 17.9°C (64.2°F). In September, the rain falls for 12 days.
• Kraków - September »
  In Kraków during September, the rain falls for 11 days and regularly aggregates up to 61mm (2.4") of precipitation. On the last day of September, in Kraków, sunrise is at 06:39 and sunset at 18:20 CEST.
• Gdańsk - September »
  In Gdańsk in September, during 15.7 rainfall days, 38mm (1.5") of precipitation is typically accumulated. In Gdańsk snow does not fall in June through September.
• Poznań - September »
  September in Poznań, Poland signals the transition to the cooler seasons, with a distinct drop in temperature from summer highs. In September, in Poznań the rain falls for 9 days.
• Szczecin - September »
  In Szczecin in September, during 14 rainfall days, 47mm (1.85") of precipitation is typically accumulated. On the first day of September in Szczecin, sunrise is at 06:12 and sunset at 19:51.
• Katowice - September »
  On the first day of September in Katowice sunrise is at 05:59 and sunset at 19:28. In Katowice snow does not fall in June through September.
• Bialystok - September »
  In Bialystok in September, during 13.4 rainfall days, 37mm (1.46") of precipitation is typically accumulated. In Bialystok during September, the rain falls for 13.4 days and regularly aggregates up to 37mm (1.46") of precipitation.
• Lublin - September »
  On the first day of September in Lublin sunrise is at 05:43 and sunset at 19:15. In Lublin, during September, the rain falls for 13 days and regularly aggregates up to 38mm (1.5") of precipitation.
• Torun - September »
  On the first day of September in Torun, sunrise is at 05:56 and sunset at 19:34. On the first day of September in Torun, sunrise is at 05:56 and sunset at 19:34.
• Kielce - September »
  On the last day of September, in Kielce, sunrise is at 06:37 and sunset at 18:17 CEST. September in Kielce heralds a minor drop in average high-temperature, sliding from August's moderately hot 23.4°C (74.1°F) to a refreshing 18.5°C (65.3°F).
• Rzeszow - September »
  On the first day of September in Rzeszow, sunrise is at 05:47 and sunset at 19:15. In Rzeszow in September, 57mm (2.24") of precipitation is typically accumulated.
• Gdynia - September »
  In Gdynia the average seawater temperature in September is 17.3°C (63.1°F). During the month of September, Gdynia's nighttime temperature lowers to an average of 11.8°C (53.2°F).