nomadseason

September Weather in Rietavas, Lithuania

Last updated: August 23, 2025

In September, the average temperature in Rietavas, Lithuania hovers around 13°C (56°F), offering a mild climate for visitors. Expect temperatures to vary, with a minimum plunge to 0°C (33°F) and a pleasant maximum of 27°C (81°F). Be prepared for some rain, as 71 mm (2.8 in) of precipitation can be expected over approximately 13 days. The air tends to be quite humid, with an average humidity of 81%, adding to the overall atmosphere of the season.

September Temperature in Rietavas

In September in Rietavas, the average temperature is 13°C (56°F). Maximum temperatures can reach 27°C (81°F), while minimums can drop as low as 0°C (33°F). It's a great time to visit for those who enjoy mild weather with a chance of warmer days.

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

The chart illustrates September temperature patterns in Rietavas, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rietavas, September typically has an average temperature of 13°C (56°F), with highs reaching up to 27°C (81°F) and lows dropping to around 0°C (33°F).
JanFebMarAprMayJunJulAugSepOctNovDec302934435263646356474032
Data source: Temperature data for Rietavas generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Rietavas

In Rietavas in September, the total precipitation amount is 71 mm (2.8 in) occurring over the course of 13 days.

September Precipitation Trends in Rietavas

The chart displays monthly precipitation patterns in Rietavas, 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 Rietavas, September typically receives around 71 mm (2.8 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec5748573958561019071896560
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Rietavas

In Rietavas in September, humidity is 81%. With an average temperature of 13°C (56°F), this humidity feels like a blanket of damp air that clings to your skin, making it essential to pack breathable clothing and stay hydrated while exploring.

September Average Humidity in Rietavas

This chart illustrates the average monthly humidity levels in Rietavas, 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 Rietavas is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%90%89%85%74%75%76%76%81%89%91%92%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Rietavas

In Rietavas 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 Rietavas.

Maximum UV Index Levels in Rietavas for September

The chart shows the monthly maximum UV Index (UVI) for Rietavas 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 Rietavas typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123567765321
Data source: Rietavas 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 Rietavas Compares to Other Months

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

This table compares monthly weather conditions in Rietavas, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)57 mm (2.3 inches)91%low
February Weather-1°C (30°F)48 mm (1.9 inches)90%low
March Weather1°C (35°F)56 mm (2.2 inches)89%moderate
April Weather6°C (43°F)39 mm (1.6 inches)85%moderate
May Weather11°C (53°F)58 mm (2.3 inches)74%high
June Weather17°C (63°F)56 mm (2.2 inches)75%high
July Weather18°C (64°F)101 mm (4.0 inches)76%high
August Weather17°C (63°F)90 mm (3.5 inches)76%high
September Weather13°C (56°F)71 mm (2.8 inches)81%moderate
October Weather9°C (48°F)89 mm (3.5 inches)89%moderate
November Weather4°C (40°F)65 mm (2.5 inches)91%low
December Weather0°C (32°F)60 mm (2.3 inches)92%low

Compare Rietavas's Climate with Cities Worldwide