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September Weather in Simnas, Lithuania

Last updated: August 23, 2025

In September, the average temperature in Simnas, Lithuania hovers around 14°C (57°F). While you can expect a minimum chill of -1°C (31°F), the mercury can rise to a maximum of 28°C (82°F). Be prepared for 65 mm (2.5 in) of precipitation over 11 days, with an average humidity level of 83%. 🌧️

September Temperature in Simnas

In September in Simnas, the average temperature is 14°C (57°F). The maximum can reach 28°C (82°F) and the minimum can be as low as -1°C (31°F). This makes Simnas a great destination for travelers looking to experience mild weather while enjoying outdoor activities.

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

The chart illustrates September temperature patterns in Simnas, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Simnas, September typically has an average temperature of 14°C (57°F), with highs reaching up to 28°C (82°F) and lows dropping to around -1°C (31°F).
JanFebMarAprMayJunJulAugSepOctNovDec293036455565666557484032
Data source: Temperature data for Simnas 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 Simnas

In Simnas in September, the precipitation amount is 65 mm (2.5 in) over a span of 11 days.

September Precipitation Trends in Simnas

The chart displays monthly precipitation patterns in Simnas, 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 Simnas, September typically receives around 65 mm (2.5 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec473442456353848365654355
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Simnas

In Simnas in September, humidity is 83%. With an average temperature of 14°C (57°F), this humidity feels like you're stepping into a warm, damp embrace that can make outdoor activities quite uncomfortable, often leaving you sweaty and exhausted if you're not prepared with plenty of water and breathable clothing.

September Average Humidity in Simnas

This chart illustrates the average monthly humidity levels in Simnas, 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 Simnas is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec94%92%90%86%72%74%76%74%83%91%93%95%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Simnas

In Simnas 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 Simnas.

Maximum UV Index Levels in Simnas for September

The chart shows the monthly maximum UV Index (UVI) for Simnas 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 Simnas typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124567765321
Data source: Simnas 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 Simnas Compares to Other Months

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

This table compares monthly weather conditions in Simnas, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)47 mm (1.8 inches)94%low
February Weather-1°C (31°F)34 mm (1.4 inches)92%low
March Weather2°C (36°F)42 mm (1.7 inches)90%moderate
April Weather7°C (45°F)45 mm (1.8 inches)86%moderate
May Weather13°C (55°F)63 mm (2.5 inches)72%high
June Weather18°C (66°F)53 mm (2.1 inches)74%high
July Weather19°C (66°F)84 mm (3.3 inches)76%high
August Weather18°C (65°F)82 mm (3.2 inches)74%high
September Weather14°C (57°F)65 mm (2.5 inches)83%moderate
October Weather9°C (49°F)65 mm (2.5 inches)91%moderate
November Weather5°C (40°F)43 mm (1.7 inches)93%low
December Weather0°C (33°F)54 mm (2.1 inches)95%low

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