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September Weather in Sonda, Estonia

Last updated: August 23, 2025

In September, the average temperature in Sonda, Estonia is a mild 12°C (54°F), with a range from a chilly minimum of 0°C (33°F) to a warm maximum of 25°C (77°F). Expect 67 mm (2.6 in) of precipitation spread over about 13 days, contributing to an average humidity of 89%. Perfect for those who enjoy a touch of coolness and a refreshing atmosphere!

September Temperature in Sonda

In September in Sonda, the average temperature is 12°C (54°F), with maximums soaring to 25°C (77°F) and minimums dipping as low as 0°C (33°F). This makes it a perfect time for travelers to enjoy mild weather while exploring the surroundings.

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

The chart illustrates September temperature patterns in Sonda, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sonda, September typically has an average temperature of 12°C (54°F), with highs reaching up to 25°C (77°F) and lows dropping to around 0°C (33°F).
JanFebMarAprMayJunJulAugSepOctNovDec272631405061646154453729
Data source: Temperature data for Sonda 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 Sonda

In Sonda in September, the precipitation amount is 67 mm (2.6 in) spread over 13 days.

September Precipitation Trends in Sonda

The chart displays monthly precipitation patterns in Sonda, 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 Sonda, September typically receives around 67 mm (2.6 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec414545515959748867775257
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Sonda

In Sonda in September humidity is 89%. With an average temperature of 12°C (54°F), this humidity feels like a damp chill that envelops you, making travels slightly uncomfortable as you navigate through a thick, moist air that can cling to your skin and steal your warmth.

September Average Humidity in Sonda

This chart illustrates the average monthly humidity levels in Sonda, 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 Sonda is approximately 89%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec95%93%90%87%73%77%80%84%89%93%93%93%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Sonda

In Sonda in September, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Sonda for better planning.

Maximum UV Index Levels in Sonda for September

The chart shows the monthly maximum UV Index (UVI) for Sonda 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 Sonda typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123457764211
Data source: Sonda 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 Sonda Compares to Other Months

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

This table compares monthly weather conditions in Sonda, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (27°F)41 mm (1.6 inches)95%low
February Weather-3°C (26°F)44 mm (1.8 inches)93%low
March Weather-1°C (31°F)45 mm (1.8 inches)90%moderate
April Weather4°C (40°F)51 mm (2.0 inches)87%moderate
May Weather10°C (51°F)58 mm (2.3 inches)73%moderate
June Weather16°C (62°F)58 mm (2.3 inches)77%high
July Weather18°C (64°F)74 mm (2.9 inches)80%high
August Weather16°C (62°F)88 mm (3.5 inches)84%high
September Weather12°C (54°F)67 mm (2.6 inches)89%moderate
October Weather7°C (45°F)77 mm (3.0 inches)92%low
November Weather3°C (37°F)51 mm (2.0 inches)93%low
December Weather-2°C (29°F)57 mm (2.3 inches)93%low

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