September Weather in Aste, Estonia

Last updated: August 23, 2025

In September, the average temperature in Aste, Estonia hovers around 14°C (57°F), providing a mild climate that many enjoy. Expect temperatures to range from a cool 3°C (37°F) to a pleasant 23°C (73°F). While you might appreciate the mild weather, be prepared for some rain, as 64 mm (2.5 in) of precipitation is expected over 12 days. With an average humidity of 85%, it’s a good idea to carry an umbrella and dress accordingly!

September Temperature in Aste

In September in Aste, the average temperature is 14°C (57°F). Maximums can reach 23°C (73°F) and minimums can drop as low as 3°C (37°F). This mild weather makes Aste a pleasant destination for travelers seeking comfortable conditions for outdoor activities and exploration.

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

The chart illustrates September temperature patterns in Aste, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Aste, September typically has an average temperature of 14°C (57°F), with highs reaching up to 23°C (73°F) and lows dropping to around 3°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec323034415161656457494235
Data source: Temperature data for Aste 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 Aste

In Aste in September, the total precipitation amount is 64 mm (2.5 in) over the course of 12 days.

September Precipitation Trends in Aste

The chart displays monthly precipitation patterns in Aste, 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 Aste, September typically receives around 64 mm (2.5 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec384147344145667764826251
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Aste

In Aste in September, humidity is 85%. With an average temperature of 14°C (57°F), this humidity feels like a thick blanket enveloping you, making travel feel heavy and sluggish.

September Average Humidity in Aste

This chart illustrates the average monthly humidity levels in Aste, 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 Aste is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%89%88%84%86%86%85%85%87%87%84%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Aste

In Aste 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 Aste for better planning.

Maximum UV Index Levels in Aste for September

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

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

This table compares monthly weather conditions in Aste, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (33°F)38 mm (1.5 inches)88%low
February Weather-1°C (31°F)41 mm (1.6 inches)87%low
March Weather1°C (34°F)47 mm (1.9 inches)89%moderate
April Weather5°C (42°F)34 mm (1.3 inches)87%moderate
May Weather10°C (51°F)41 mm (1.6 inches)84%moderate
June Weather16°C (62°F)45 mm (1.8 inches)86%high
July Weather18°C (65°F)66 mm (2.6 inches)86%high
August Weather18°C (64°F)77 mm (3.0 inches)85%high
September Weather14°C (57°F)64 mm (2.5 inches)85%moderate
October Weather9°C (49°F)82 mm (3.2 inches)87%low
November Weather6°C (42°F)62 mm (2.4 inches)87%low
December Weather2°C (35°F)51 mm (2.0 inches)84%low

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