September Weather in Rios, Spain

Last updated: August 27, 2025

In September, the average temperature in Rios, Spain is a pleasant 17°C (63°F), with daily variations ranging from a cool 4°C (40°F) to a warm 30°C (87°F). Expect about 43 mm (1.7 in) of rainfall spread over 6 days, contributing to an average humidity of around 63%. This blend of warmth and occasional showers makes for a delightful time to explore!

September Temperature in Rios

In September in Rios, the average temperature is 17°C (63°F). Maximum temperatures can reach 30°C (87°F), while minimums can drop as low as 4°C (40°F). This makes it an ideal time for travelers to enjoy a mix of pleasant weather, suitable for both outdoor activities and exploring the local culture.

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

The chart illustrates September temperature patterns in Rios, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rios, September typically has an average temperature of 17°C (63°F), with highs reaching up to 30°C (87°F) and lows dropping to around 4°C (40°F).

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

September Precipitation in Rios

In Rios in September, the precipitation amount is 43 mm (1.7 in) over a period of 6 days.

September Precipitation Trends in Rios

The chart displays monthly precipitation patterns in Rios, 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 Rios, September typically receives around 43 mm (1.7 inches) of precipitation spread over approximately 6 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 Rios

In Rios in September humidity is 63%. With average temperature 17°C (63°F), this humidity feels like a comfortable embrace, making it ideal for leisurely strolls and sightseeing without feeling overly sticky or uncomfortable for travelers.

September Average Humidity in Rios

This chart illustrates the average monthly humidity levels in Rios, 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 Rios is approximately 63%, 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 Rios

In Rios in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Rios.

Maximum UV Index Levels in Rios for September

The chart shows the monthly maximum UV Index (UVI) for Rios 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 Rios typically reaches 8, which falls under the very high exposure category.

Data source: Rios 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 Rios Compares to Other Months

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

This table compares monthly weather conditions in Rios, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	4°C (40°F)	85 mm (3.3 inches)	91%	low
February Weather	7°C (44°F)	131 mm (5.2 inches)	85%	moderate
March Weather	8°C (46°F)	125 mm (4.9 inches)	79%	high
April Weather	10°C (50°F)	103 mm (4.0 inches)	77%	very high
May Weather	14°C (58°F)	77 mm (3.0 inches)	76%	very high
June Weather	17°C (62°F)	53 mm (2.1 inches)	64%	extreme
July Weather	20°C (68°F)	24 mm (0.9 inches)	54%	very high
August Weather	20°C (67°F)	23 mm (0.9 inches)	52%	very high
September Weather	17°C (63°F)	43 mm (1.7 inches)	63%	very high
October Weather	13°C (55°F)	105 mm (4.1 inches)	78%	high
November Weather	8°C (46°F)	140 mm (5.5 inches)	90%	moderate
December Weather	6°C (43°F)	189 mm (7.4 inches)	91%	low