September Weather in Roa, Spain

Last updated: August 27, 2025

In September, the average temperature in Roa, Spain is a pleasant 18°C (65°F). Expect nighttime lows to dip to a chilly 2°C (36°F), while daytime highs can reach a warm 34°C (93°F). Rainfall is minimal, with an average of 30 mm (1.2 in) spread over 5 days, and humidity levels hover around 65%, ensuring a comfortable atmosphere overall.

September Temperature in Roa

In September in Roa, the average temperature is 18°C (65°F). The maximum can reach 34°C (93°F), while the minimum can drop as low as 2°C (36°F). Be prepared for a wide range of temperatures, making it essential to pack layers for your trip.

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

The chart illustrates September temperature patterns in Roa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Roa, September typically has an average temperature of 18°C (65°F), with highs reaching up to 34°C (93°F) and lows dropping to around 2°C (36°F).

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

September Precipitation in Roa

In Roa in September, the precipitation amount is 30 mm (1.2 in) over the course of 5 days.

September Precipitation Trends in Roa

The chart displays monthly precipitation patterns in Roa, 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 Roa, September typically receives around 30 mm (1.2 inches) of precipitation spread over approximately 5 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 Roa

In Roa in September, humidity is 65%. With an average temperature of 18°C (65°F), this humidity feels like a warm embrace that clings to your skin, making you feel slightly sticky as you explore. It's comfortable enough for sightseeing, but breathable enough to enjoy a leisurely stroll, though you might find yourself seeking shade during the warmest parts of the day.

September Average Humidity in Roa

This chart illustrates the average monthly humidity levels in Roa, 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 Roa is approximately 65%, 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 Roa

In Roa 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 Roa.

Maximum UV Index Levels in Roa for September

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

Data source: Roa 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 Roa Compares to Other Months

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

This table compares monthly weather conditions in Roa, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	3°C (39°F)	36 mm (1.4 inches)	90%	moderate
February Weather	6°C (44°F)	46 mm (1.8 inches)	86%	moderate
March Weather	8°C (47°F)	51 mm (2.0 inches)	79%	high
April Weather	11°C (51°F)	83 mm (3.2 inches)	74%	very high
May Weather	15°C (59°F)	55 mm (2.1 inches)	71%	very high
June Weather	19°C (67°F)	51 mm (2.0 inches)	63%	extreme
July Weather	23°C (73°F)	20 mm (0.8 inches)	59%	extreme
August Weather	22°C (73°F)	16 mm (0.6 inches)	58%	very high
September Weather	18°C (65°F)	30 mm (1.2 inches)	65%	very high
October Weather	13°C (56°F)	47 mm (1.9 inches)	77%	high
November Weather	8°C (46°F)	65 mm (2.6 inches)	87%	moderate
December Weather	6°C (42°F)	53 mm (2.1 inches)	90%	low