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June Weather in Sejny, Poland

Last updated: August 27, 2025

In June, the average temperature in Sejny, Poland hovers around 18°C (65°F), with a typical range from a brisk 3°C (38°F) to a warm 33°C (92°F). Expect about 51 mm (2.0 in) of precipitation spread over 11 days, contributing to an average humidity of 59%. Prepare for a mix of mild warmth and occasional rain!

June Temperature in Sejny

In June in Sejny, the average temperature is 18°C (65°F). Maximum temperatures can reach 33°C (92°F), while minimums can drop as low as 3°C (38°F). This diverse temperature range makes Sejny an interesting destination for travelers seeking both warm days and cooler nights.

June Weather in Sejny: Daily Temperature Highs, Lows, and Averages

The chart illustrates June temperature patterns in Sejny, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sejny, June typically has an average temperature of 18°C (65°F), with highs reaching up to 33°C (92°F) and lows dropping to around 3°C (38°F).
JanFebMarAprMayJunJulAugSepOctNovDec293036455565666557484032
Data source: Temperature data for Sejny 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.

June Precipitation in Sejny

In Sejny in June, the precipitation amount is 51 mm (2.0 in) spread over 11 days.

June Precipitation Trends in Sejny

The chart displays monthly precipitation patterns in Sejny, with values for each month alongside June’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how June’s conditions compare to those of other months. In Sejny, June typically receives around 51 mm (2.0 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec413440457051938770613954
Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.
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June Humidity in Sejny

In Sejny in June, humidity is 59%. With an average temperature of 18°C (65°F), this humidity feels like a gentle embrace, providing a refreshing atmosphere that's ideal for exploring the sights without feeling too hot or sticky.

June Average Humidity in Sejny

This chart illustrates the average monthly humidity levels in Sejny, with June’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In June, average humidity in Sejny is approximately 59%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%91%88%77%59%59%60%60%72%89%91%93%
Data source: Humidity data for June generated using information from the Copernicus Climate Change Service.

June UV Index in Sejny

In Sejny in June, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Sejny.

Maximum UV Index Levels in Sejny for June

The chart shows the monthly maximum UV Index (UVI) for Sejny in June, 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 June, the maximum UV index in Sejny typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124568765321
Data source: Sejny June 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 June Weather in Sejny Compares to Other Months

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

This table compares monthly weather conditions in Sejny, showing how June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)41 mm (1.6 inches)93%low
February Weather-1°C (30°F)34 mm (1.3 inches)90%low
March Weather2°C (36°F)40 mm (1.6 inches)88%moderate
April Weather7°C (45°F)45 mm (1.8 inches)77%moderate
May Weather13°C (55°F)70 mm (2.8 inches)59%high
June Weather18°C (65°F)51 mm (2.0 inches)59%very high
July Weather19°C (66°F)93 mm (3.7 inches)60%high
August Weather18°C (65°F)87 mm (3.4 inches)60%high
September Weather14°C (57°F)70 mm (2.7 inches)72%moderate
October Weather9°C (48°F)61 mm (2.4 inches)88%moderate
November Weather4°C (40°F)39 mm (1.5 inches)91%low
December Weather0°C (32°F)53 mm (2.1 inches)93%low

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