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September Weather in Kostivere, Estonia

Last updated: August 23, 2025

In September, the average temperature in Kostivere, Estonia sits at a comfortable 13°C (55°F). While you might experience minimums as low as 3°C (37°F) and delightful maximums reaching 24°C (75°F), be prepared for some rain—80 mm (3.2 in) of precipitation can be expected over 15 days. Don't forget to account for the average humidity of 87%, which adds a touch of moisture to the air!

September Temperature in Kostivere

In September in Kostivere, the average temperature is 13°C (55°F). Maximums can reach 24°C (75°F), while minimums can drop to as low as 3°C (37°F). It's an ideal time for travelers to enjoy mild weather, perfect for outdoor activities and exploring the local attractions.

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

The chart illustrates September temperature patterns in Kostivere, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kostivere, September typically has an average temperature of 13°C (55°F), with highs reaching up to 24°C (75°F) and lows dropping to around 3°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec292832405060646255463932
Data source: Temperature data for Kostivere 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 Kostivere

In Kostivere in September, the total precipitation amount is 80 mm (3.2 in) spread over 15 days.

September Precipitation Trends in Kostivere

The chart displays monthly precipitation patterns in Kostivere, 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 Kostivere, September typically receives around 80 mm (3.2 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec4447464455577010380975759
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Kostivere

In Kostivere in September, humidity is 87%. With an average temperature of 13°C (55°F), this humidity feels like a heavy blanket wrapping around you, making travel sluggish and slightly uncomfortable, as each step seems to cling to the damp air.

September Average Humidity in Kostivere

This chart illustrates the average monthly humidity levels in Kostivere, 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 Kostivere is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%91%90%87%76%80%80%83%87%90%91%90%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Kostivere

In Kostivere 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 Kostivere for better planning.

Maximum UV Index Levels in Kostivere for September

The chart shows the monthly maximum UV Index (UVI) for Kostivere 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 Kostivere typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec113457754211
Data source: Kostivere 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 Kostivere Compares to Other Months

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

This table compares monthly weather conditions in Kostivere, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)44 mm (1.7 inches)92%low
February Weather-2°C (28°F)47 mm (1.9 inches)91%low
March Weather0°C (33°F)46 mm (1.8 inches)90%moderate
April Weather4°C (40°F)43 mm (1.7 inches)87%moderate
May Weather10°C (50°F)55 mm (2.2 inches)76%moderate
June Weather16°C (61°F)57 mm (2.2 inches)80%high
July Weather18°C (64°F)70 mm (2.7 inches)80%high
August Weather17°C (63°F)103 mm (4.1 inches)83%moderate
September Weather13°C (55°F)80 mm (3.2 inches)87%moderate
October Weather8°C (47°F)97 mm (3.8 inches)90%low
November Weather4°C (40°F)57 mm (2.3 inches)91%low
December Weather0°C (32°F)59 mm (2.3 inches)90%low

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