September Weather in Irurtzun, Spain

Last updated: August 27, 2025

In September, the average temperature in Irurtzun, Spain hovers around 17°C (62°F). Expect a minimum of 3°C (38°F) and a comfortable maximum of 31°C (89°F). Be prepared for 71 mm (2.8 in) of precipitation spread across 12 days, contributing to an average humidity of 75%.

September Temperature in Irurtzun

In September in Irurtzun, the average temperature is 17°C (62°F). Maximum temperatures can reach 31°C (89°F), while minimums can drop as low as 3°C (38°F). This varied climate makes Irurtzun a perfect destination for travelers seeking both warm and cooler weather experiences.

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

The chart illustrates September temperature patterns in Irurtzun, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Irurtzun, September typically has an average temperature of 17°C (62°F), with highs reaching up to 31°C (89°F) and lows dropping to around 3°C (38°F).

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

September Precipitation in Irurtzun

In Irurtzun in September, the precipitation amount is 71 mm (2.8 in) during a total of 12 days.

September Precipitation Trends in Irurtzun

The chart displays monthly precipitation patterns in Irurtzun, 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 Irurtzun, September typically receives around 71 mm (2.8 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 Irurtzun

In Irurtzun in September, humidity is 75%. With an average temperature of 17°C (62°F), this humidity feels like a warm, muggy embrace that can leave travelers feeling sticky and a bit sluggish as they navigate the sights.

September Average Humidity in Irurtzun

This chart illustrates the average monthly humidity levels in Irurtzun, 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 Irurtzun is approximately 75%, 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 Irurtzun

In Irurtzun 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 Irurtzun.

Maximum UV Index Levels in Irurtzun for September

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

Data source: Irurtzun 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 Irurtzun Compares to Other Months

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

This table compares monthly weather conditions in Irurtzun, 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)	112 mm (4.4 inches)	86%	low
February Weather	7°C (45°F)	98 mm (3.9 inches)	85%	moderate
March Weather	8°C (47°F)	111 mm (4.4 inches)	82%	high
April Weather	10°C (51°F)	111 mm (4.4 inches)	81%	high
May Weather	14°C (57°F)	109 mm (4.3 inches)	80%	very high
June Weather	17°C (63°F)	124 mm (4.9 inches)	81%	very high
July Weather	19°C (66°F)	70 mm (2.8 inches)	80%	very high
August Weather	19°C (66°F)	82 mm (3.2 inches)	76%	very high
September Weather	17°C (62°F)	71 mm (2.8 inches)	75%	high
October Weather	13°C (55°F)	107 mm (4.2 inches)	81%	moderate
November Weather	8°C (47°F)	132 mm (5.2 inches)	85%	moderate
December Weather	6°C (44°F)	155 mm (6.1 inches)	87%	low