September Weather in Mosteni, Romania

Last updated: August 27, 2025

In Mosteni, Romania, the average temperature in September hovers around 20°C (68°F), making it a pleasant time to visit. Be prepared for a temperature range that can dip as low as 1°C (34°F) and soar up to 37°C (99°F). During your stay, expect about 16 mm (0.6 in) of precipitation over just 2 days, with an average humidity level of 57% adding a touch of moisture to the air. Enjoy your trip!

September Temperature in Mosteni

In September, in Mosteni, the average temperature is 20°C (68°F), with maximums reaching up to 37°C (99°F) and minimums dropping as low as 1°C (34°F). Be prepared for a wide range of temperatures and pack accordingly for your travels!

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

The chart illustrates September temperature patterns in Mosteni, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mosteni, September typically has an average temperature of 20°C (68°F), with highs reaching up to 37°C (99°F) and lows dropping to around 1°C (34°F).

Data source: Temperature data for Mosteni generated using information from the Copernicus Climate Change Service.

September Precipitation in Mosteni

In Mosteni in September, the precipitation amount is 16 mm (0.6 in) over a period of 2 days.

September Precipitation Trends in Mosteni

The chart displays monthly precipitation patterns in Mosteni, 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 Mosteni, September typically receives around 16 mm (0.6 inches) of precipitation spread over approximately 2 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

September Humidity in Mosteni

In Mosteni in September humidity is 57%. With an average temperature of 20°C (68°F), this humidity feels like a pleasantly mild and comfortable climate for traveling, making outdoor exploration enjoyable without the discomfort of excessive heat or stickiness.

September Average Humidity in Mosteni

This chart illustrates the average monthly humidity levels in Mosteni, 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 Mosteni is approximately 57%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Mosteni

In Mosteni 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 Mosteni.

Maximum UV Index Levels in Mosteni for September

The chart shows the monthly maximum UV Index (UVI) for Mosteni 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 Mosteni typically reaches 7, which falls under the high exposure category.

Data source: Mosteni 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 Mosteni Compares to Other Months

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

This table compares monthly weather conditions in Mosteni, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	0°C (32°F)	42 mm (1.6 inches)	88%	low
February Weather	3°C (38°F)	43 mm (1.7 inches)	85%	moderate
March Weather	7°C (44°F)	66 mm (2.6 inches)	82%	moderate
April Weather	12°C (54°F)	40 mm (1.6 inches)	73%	high
May Weather	18°C (64°F)	69 mm (2.7 inches)	71%	very high
June Weather	22°C (71°F)	116 mm (4.6 inches)	70%	very high
July Weather	24°C (75°F)	78 mm (3.1 inches)	66%	very high
August Weather	25°C (77°F)	32 mm (1.2 inches)	48%	very high
September Weather	20°C (68°F)	16 mm (0.6 inches)	57%	high
October Weather	13°C (56°F)	69 mm (2.7 inches)	79%	moderate
November Weather	7°C (46°F)	42 mm (1.6 inches)	87%	moderate
December Weather	3°C (37°F)	62 mm (2.5 inches)	88%	low