September Weather in Onate, Spain

Last updated: August 27, 2025

In September, the average temperature in Onate, Spain is a comfortable 17°C (63°F). However, temperatures can vary significantly, with a minimum of 5°C (42°F) and a maximum of 32°C (90°F). Expect about 68 mm (2.7 in) of precipitation spread over 12 days, contributing to an average humidity of 77%. Enjoy the dynamic climate of this vibrant destination!

September Temperature in Onate

In September in Onate, the average temperature is 17°C (63°F). Maximum temperatures can reach 32°C (90°F), while minimums can drop to as low as 5°C (42°F). Be prepared for a wide range of temperatures when traveling during this time.

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

The chart illustrates September temperature patterns in Onate, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Onate, September typically has an average temperature of 17°C (63°F), with highs reaching up to 32°C (90°F) and lows dropping to around 5°C (42°F).

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

September Precipitation in Onate

In Onate in September, the precipitation amount is 68 mm (2.7 in) over the course of 12 days.

September Precipitation Trends in Onate

The chart displays monthly precipitation patterns in Onate, 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 Onate, September typically receives around 68 mm (2.7 inches) of precipitation spread over approximately 12 days.

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

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Millimeters (mm) Inches (in)

September Humidity in Onate

In Onate in September, humidity is 77%. With an average temperature of 17°C (63°F), this humidity feels like a cozy blanket wrapped around you, creating a muggy atmosphere that can be a bit uncomfortable for traveling, making you want to seek shade and hydration as you explore.

September Average Humidity in Onate

This chart illustrates the average monthly humidity levels in Onate, 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 Onate is approximately 77%, 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 Onate

In Onate 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 Onate.

Maximum UV Index Levels in Onate for September

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

Data source: Onate 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 Onate Compares to Other Months

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

This table compares monthly weather conditions in Onate, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	5°C (41°F)	105 mm (4.1 inches)	85%	low
February Weather	8°C (46°F)	94 mm (3.7 inches)	83%	moderate
March Weather	9°C (48°F)	98 mm (3.8 inches)	82%	high
April Weather	11°C (51°F)	100 mm (3.9 inches)	81%	high
May Weather	14°C (57°F)	92 mm (3.6 inches)	81%	very high
June Weather	17°C (62°F)	112 mm (4.4 inches)	83%	very high
July Weather	19°C (66°F)	62 mm (2.4 inches)	87%	very high
August Weather	19°C (66°F)	58 mm (2.3 inches)	82%	very high
September Weather	17°C (63°F)	68 mm (2.7 inches)	77%	high
October Weather	13°C (56°F)	101 mm (4.0 inches)	80%	moderate
November Weather	9°C (48°F)	134 mm (5.3 inches)	83%	moderate
December Weather	7°C (45°F)	138 mm (5.4 inches)	85%	low