September Weather in Alerre, Spain

Last updated: August 27, 2025

In Alerre, Spain, the average temperature in September hovers around 19°C (66°F), with minimums dipping to 4°C (40°F) and maximums soaring up to 31°C (89°F). Rainfall is expected, with 68 mm (2.7 in) of precipitation spread over approximately 7 days. The average humidity during this month reaches a comfortable 75%, making for a pleasant atmosphere.

September Temperature in Alerre

In September in Alerre, the average temperature is 19°C (66°F). Maximum temperatures can reach 31°C (89°F), and minimums can drop as low as 4°C (40°F). Be prepared for a range of temperatures to ensure a comfortable and enjoyable travel experience.

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

The chart illustrates September temperature patterns in Alerre, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Alerre, September typically has an average temperature of 19°C (66°F), with highs reaching up to 31°C (89°F) and lows dropping to around 4°C (40°F).

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

September Precipitation in Alerre

In Alerre in September, the precipitation amount is 68 mm (2.7 in) over the course of 7 days.

September Precipitation Trends in Alerre

The chart displays monthly precipitation patterns in Alerre, 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 Alerre, September typically receives around 68 mm (2.7 inches) of precipitation spread over approximately 7 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 Alerre

In Alerre in September humidity is 75%. With an average temperature of 19°C (66°F), this humidity feels like a warm, enveloping blanket, making it slightly uncomfortable for traveling as you navigate through the thick, muggy air.

September Average Humidity in Alerre

This chart illustrates the average monthly humidity levels in Alerre, 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 Alerre 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 Alerre

In Alerre 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 Alerre.

Maximum UV Index Levels in Alerre for September

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

Data source: Alerre 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 Alerre Compares to Other Months

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

This table compares monthly weather conditions in Alerre, 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 (39°F)	51 mm (2.0 inches)	86%	moderate
February Weather	7°C (45°F)	51 mm (2.0 inches)	85%	moderate
March Weather	8°C (47°F)	88 mm (3.4 inches)	82%	high
April Weather	11°C (52°F)	116 mm (4.6 inches)	81%	very high
May Weather	16°C (60°F)	98 mm (3.8 inches)	80%	very high
June Weather	20°C (68°F)	96 mm (3.8 inches)	81%	extreme
July Weather	23°C (74°F)	35 mm (1.4 inches)	80%	extreme
August Weather	23°C (74°F)	45 mm (1.8 inches)	76%	very high
September Weather	19°C (66°F)	68 mm (2.7 inches)	75%	very high
October Weather	13°C (56°F)	100 mm (3.9 inches)	81%	high
November Weather	8°C (46°F)	83 mm (3.3 inches)	85%	moderate
December Weather	5°C (42°F)	74 mm (2.9 inches)	87%	low