September Weather in Arronches, Portugal

Last updated: August 27, 2025

In Arronches, Portugal, the average temperature for September is a pleasant 23°C (74°F). Expect minimums around 10°C (50°F) and maximums soaring up to 37°C (99°F). During this period, average precipitation reaches 27 mm (1.0 in) over approximately 3 days, with an average humidity of 53%. Perfect weather for exploring!

September Temperature in Arronches

In September in Arronches, the average temperature is 23°C (74°F). Maximums can reach up to 37°C (99°F), and minimums can drop as low as 10°C (50°F). Be prepared for warm days and cooler nights while exploring the beautiful surroundings.

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

The chart illustrates September temperature patterns in Arronches, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Arronches, September typically has an average temperature of 23°C (74°F), with highs reaching up to 37°C (99°F) and lows dropping to around 10°C (50°F).

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

September Precipitation in Arronches

In Arronches in September, the precipitation amount is 27 mm (1.0 in) over the course of 3 days.

September Precipitation Trends in Arronches

The chart displays monthly precipitation patterns in Arronches, 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 Arronches, September typically receives around 27 mm (1.0 inches) of precipitation spread over approximately 3 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 Arronches

In Arronches in September, humidity is 53%. With an average temperature of 23°C (74°F), this humidity feels like a warm embrace, making it comfortable for exploring the sights while still requiring occasional breaks in the shade to stay refreshed.

September Average Humidity in Arronches

This chart illustrates the average monthly humidity levels in Arronches, 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 Arronches is approximately 53%, 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 Arronches

In Arronches 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 Arronches.

Maximum UV Index Levels in Arronches for September

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

Data source: Arronches 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 Arronches Compares to Other Months

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

This table compares monthly weather conditions in Arronches, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	8°C (47°F)	30 mm (1.2 inches)	87%	moderate
February Weather	11°C (52°F)	44 mm (1.7 inches)	76%	moderate
March Weather	12°C (54°F)	81 mm (3.2 inches)	68%	high
April Weather	15°C (58°F)	74 mm (2.9 inches)	64%	very high
May Weather	19°C (67°F)	34 mm (1.3 inches)	62%	very high
June Weather	22°C (72°F)	11 mm (0.4 inches)	47%	extreme
July Weather	25°C (77°F)	3 mm (0.1 inches)	46%	very high
August Weather	26°C (79°F)	4 mm (0.2 inches)	42%	very high
September Weather	23°C (74°F)	27 mm (1.0 inches)	53%	very high
October Weather	18°C (65°F)	46 mm (1.8 inches)	69%	high
November Weather	13°C (55°F)	67 mm (2.6 inches)	85%	moderate
December Weather	10°C (51°F)	61 mm (2.4 inches)	87%	moderate