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September Weather in Olecko, Poland

Last updated: August 27, 2025

In September, the average temperature in Olecko, Poland hovers around 14°C (57°F). Expect minimums as low as 1°C (33°F) and delightful highs reaching 27°C (82°F). This month typically sees 69 mm (2.7 in) of precipitation spread over about 10 days, with an average humidity level of 71%, creating a refreshing atmosphere perfect for exploring.

September Temperature in Olecko

In September in Olecko, the average temperature is 14°C (57°F), with maximums reaching 27°C (82°F) and minimums dropping to as low as 1°C (33°F). This diverse temperature range makes it an ideal time for travelers to enjoy a variety of activities, from exploring the outdoors to cozying up in local cafes.

September Weather in Olecko: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Olecko, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Olecko, September typically has an average temperature of 14°C (57°F), with highs reaching up to 27°C (82°F) and lows dropping to around 1°C (33°F).
JanFebMarAprMayJunJulAugSepOctNovDec293036455464656456484032
Data source: Temperature data for Olecko generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Olecko

In Olecko in September, the precipitation amount is 69 mm (2.7 in) spread over a period of 10 days.

September Precipitation Trends in Olecko

The chart displays monthly precipitation patterns in Olecko, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Olecko, September typically receives around 69 mm (2.7 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec463946447561988469684259
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Olecko

In Olecko in September, humidity is 71%. With an average temperature of 14°C (57°F), this humidity feels like a damp blanket enveloping you, making outdoor activities less enjoyable and encouraging visitors to seek refuge in shaded spots or air-conditioned spaces.

September Average Humidity in Olecko

This chart illustrates the average monthly humidity levels in Olecko, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Olecko is approximately 71%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%90%87%76%58%56%59%60%71%86%90%93%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Olecko

In Olecko in September, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Olecko.

Maximum UV Index Levels in Olecko for September

The chart shows the monthly maximum UV Index (UVI) for Olecko in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Olecko typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124567765321
Data source: Olecko September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How September Weather in Olecko Compares to Other Months

Weather in Olecko varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Olecko, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Olecko, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)45 mm (1.8 inches)92%low
February Weather-1°C (30°F)39 mm (1.5 inches)90%low
March Weather2°C (36°F)46 mm (1.8 inches)87%moderate
April Weather7°C (45°F)44 mm (1.7 inches)76%moderate
May Weather12°C (54°F)74 mm (2.9 inches)58%high
June Weather18°C (65°F)61 mm (2.4 inches)56%high
July Weather18°C (65°F)98 mm (3.9 inches)59%high
August Weather18°C (65°F)84 mm (3.3 inches)60%high
September Weather14°C (57°F)69 mm (2.7 inches)71%moderate
October Weather9°C (48°F)68 mm (2.7 inches)86%moderate
November Weather4°C (40°F)42 mm (1.7 inches)90%low
December Weather0°C (32°F)59 mm (2.3 inches)93%low

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