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September Weather in Deva, Romania

Last updated: August 27, 2025

In September, the average temperature in Deva, Romania hovers around 17°C (63°F). Expect a range that can dip to a cool 1°C (34°F) and soar to a warm 33°C (91°F). During this time, precipitation averages 48 mm (1.9 in), falling over 7 days. The average humidity is comfortably set at 58%, making it a pleasant month overall.

September Temperature in Deva

In September in Deva, the average temperature is 17°C (63°F). Maximums can reach 33°C (91°F) and minimums can be as low as 1°C (34°F). Be sure to pack layers to accommodate the wide temperature range while exploring.

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

The chart illustrates September temperature patterns in Deva, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Deva, September typically has an average temperature of 17°C (63°F), with highs reaching up to 33°C (91°F) and lows dropping to around 1°C (34°F).
JanFebMarAprMayJunJulAugSepOctNovDec313742515967707263534436
Data source: Temperature data for Deva 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 Deva

In Deva in September, the total precipitation amount is 48 mm (1.9 in) over a span of 7 days.

September Precipitation Trends in Deva

The chart displays monthly precipitation patterns in Deva, 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 Deva, September typically receives around 48 mm (1.9 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec454854459290785749424172
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Deva

In Deva in September humidity is 58%. With an average temperature of 17°C (63°F), this humidity feels like a refreshing embrace, making it pleasant for traveling as long as you stay hydrated and dress in light layers.

September Average Humidity in Deva

This chart illustrates the average monthly humidity levels in Deva, 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 Deva is approximately 58%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%86%83%74%70%67%65%51%58%80%88%90%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Deva

In Deva 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 Deva.

Maximum UV Index Levels in Deva for September

The chart shows the monthly maximum UV Index (UVI) for Deva 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 Deva typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689987532
Data source: Deva 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 Deva Compares to Other Months

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

This table compares monthly weather conditions in Deva, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (31°F)45 mm (1.8 inches)91%low
February Weather3°C (37°F)48 mm (1.9 inches)86%moderate
March Weather6°C (43°F)54 mm (2.1 inches)83%moderate
April Weather11°C (52°F)45 mm (1.8 inches)74%high
May Weather15°C (59°F)92 mm (3.6 inches)70%very high
June Weather20°C (68°F)90 mm (3.5 inches)67%very high
July Weather21°C (70°F)78 mm (3.1 inches)65%very high
August Weather22°C (72°F)57 mm (2.2 inches)51%very high
September Weather17°C (63°F)48 mm (1.9 inches)58%high
October Weather11°C (53°F)42 mm (1.7 inches)80%moderate
November Weather7°C (45°F)41 mm (1.6 inches)88%moderate
December Weather2°C (36°F)72 mm (2.8 inches)90%low

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