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September Weather in Herculian, Romania

Last updated: August 27, 2025

In September, the average temperature in Herculian, Romania hovers around 13°C (56°F). Expect a chilly minimum of -3°C (26°F) and warm days reaching up to 30°C (86°F). The region sees about 46 mm (1.8 in) of precipitation spread over 7 days, while average humidity sits at a comfortable 62%.

September Temperature in Herculian

In September in Herculian, the average temperature is 13°C (56°F). The maximum can reach 30°C (86°F), while the minimum can drop as low as -3°C (26°F). Be prepared for a wide range of temperatures when planning your travels during this month.

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

The chart illustrates September temperature patterns in Herculian, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Herculian, September typically has an average temperature of 13°C (56°F), with highs reaching up to 30°C (86°F) and lows dropping to around -3°C (26°F).
JanFebMarAprMayJunJulAugSepOctNovDec242936455461646556473830
Data source: Temperature data for Herculian 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 Herculian

In Herculian in September, the precipitation amount is 46 mm (1.8 in) over the course of 7 days.

September Precipitation Trends in Herculian

The chart displays monthly precipitation patterns in Herculian, 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 Herculian, September typically receives around 46 mm (1.8 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec284351511031451018046413055
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Herculian

In Herculian in September, humidity is 62%. With an average temperature of 13°C (56°F), this humidity feels like a chill in the air that adds a touch of dampness to your travels, making it essential to dress in layers for comfort while exploring the sights.

September Average Humidity in Herculian

This chart illustrates the average monthly humidity levels in Herculian, 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 Herculian is approximately 62%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%88%86%79%73%73%69%56%62%81%89%90%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Herculian

In Herculian in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Herculian.

Maximum UV Index Levels in Herculian for September

The chart shows the monthly maximum UV Index (UVI) for Herculian 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 Herculian typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec236789987532
Data source: Herculian 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 Herculian Compares to Other Months

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

This table compares monthly weather conditions in Herculian, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-5°C (24°F)28 mm (1.1 inches)92%low
February Weather-1°C (30°F)43 mm (1.7 inches)88%moderate
March Weather2°C (36°F)51 mm (2.0 inches)86%high
April Weather7°C (45°F)51 mm (2.0 inches)79%high
May Weather12°C (54°F)103 mm (4.1 inches)73%very high
June Weather16°C (62°F)145 mm (5.7 inches)73%very high
July Weather18°C (64°F)101 mm (4.0 inches)68%very high
August Weather18°C (65°F)80 mm (3.2 inches)56%very high
September Weather13°C (56°F)46 mm (1.8 inches)62%high
October Weather8°C (47°F)41 mm (1.6 inches)80%moderate
November Weather3°C (38°F)30 mm (1.2 inches)89%moderate
December Weather-1°C (31°F)55 mm (2.2 inches)90%low

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