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September Weather in Sillamaee, Estonia

Last updated: August 23, 2025

In September, the average temperature in Sillamaee, Estonia hovers around 14°C (57°F). Visitors can expect a comfortable range, with temperatures dipping as low as 7°C (44°F) and peaking at 23°C (74°F). Rain is a frequent visitor, with 106 mm (4.2 in) of precipitation spread over 16 days, coupled with a high average humidity of 90%. Prepare accordingly to fully enjoy your stay!

September Temperature in Sillamaee

In September in Sillamaee, the average temperature is 14°C (57°F). The maximum can reach 23°C (74°F), and the minimum can be as low as 7°C (44°F). This makes for a pleasant time to explore Sillamaee, so pack accordingly for mild weather and enjoy your travels!

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

The chart illustrates September temperature patterns in Sillamaee, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sillamaee, September typically has an average temperature of 14°C (57°F), with highs reaching up to 23°C (74°F) and lows dropping to around 7°C (44°F).
JanFebMarAprMayJunJulAugSepOctNovDec292731384860646356473932
Data source: Temperature data for Sillamaee 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 Sillamaee

In Sillamaee in September, the total precipitation amount is 106 mm (4.2 in) spread over 16 days.

September Precipitation Trends in Sillamaee

The chart displays monthly precipitation patterns in Sillamaee, 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 Sillamaee, September typically receives around 106 mm (4.2 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec545755486251791101071319286
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Sillamaee

In Sillamaee in September, humidity is 90%. With an average temperature of 14°C (57°F), this humidity feels like a warm blanket wrapping around you, making travel somewhat stifling and requiring frequent breaks to stay refreshed.

September Average Humidity in Sillamaee

This chart illustrates the average monthly humidity levels in Sillamaee, 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 Sillamaee is approximately 90%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec97%94%90%86%71%77%82%86%90%93%93%94%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Sillamaee

In Sillamaee 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 Sillamaee for better planning.

Maximum UV Index Levels in Sillamaee for September

The chart shows the monthly maximum UV Index (UVI) for Sillamaee 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 Sillamaee typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec113457764211
Data source: Sillamaee 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 Sillamaee Compares to Other Months

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

This table compares monthly weather conditions in Sillamaee, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)54 mm (2.1 inches)97%low
February Weather-3°C (27°F)57 mm (2.2 inches)94%low
March Weather-1°C (31°F)55 mm (2.2 inches)90%moderate
April Weather3°C (39°F)48 mm (1.9 inches)86%moderate
May Weather9°C (48°F)62 mm (2.4 inches)71%moderate
June Weather16°C (60°F)51 mm (2.0 inches)77%high
July Weather18°C (65°F)79 mm (3.1 inches)82%high
August Weather17°C (64°F)110 mm (4.3 inches)86%high
September Weather14°C (57°F)106 mm (4.2 inches)90%moderate
October Weather8°C (47°F)131 mm (5.2 inches)93%low
November Weather4°C (40°F)92 mm (3.6 inches)93%low
December Weather0°C (32°F)86 mm (3.4 inches)94%low

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