September Weather in Aljezur, Portugal

Last updated: August 27, 2025

In September, the average temperature in Aljezur, Portugal is a pleasant 21°C (71°F). You can expect a minimum of 12°C (55°F) and a maximum of 32°C (91°F), providing a comfortable range for outdoor activities. Additionally, anticipate about 7 mm (0.3 in) of precipitation spread over just 1 day, with an average humidity of 71%. Enjoy the mild weather!

September Temperature in Aljezur

In September, in Aljezur, the average temperature is 21°C (71°F). Maximum temperatures can reach up to 32°C (91°F), while minimums can drop as low as 12°C (55°F). This pleasant climate makes Aljezur an ideal destination for travelers seeking comfortable weather during their visit.

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

The chart illustrates September temperature patterns in Aljezur, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Aljezur, September typically has an average temperature of 21°C (71°F), with highs reaching up to 32°C (91°F) and lows dropping to around 12°C (55°F).

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

September Precipitation in Aljezur

In Aljezur in September, the precipitation amount is 7 mm (0.3 in) over the course of 1 day.

September Precipitation Trends in Aljezur

The chart displays monthly precipitation patterns in Aljezur, 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 Aljezur, September typically receives around 7 mm (0.3 inches) of precipitation spread over approximately 1 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 Aljezur

In Aljezur in September humidity is 71%. With an average temperature of 21°C (71°F), this humidity feels like a warm embrace, making it important for travelers to stay hydrated and seek shade during the hottest parts of the day.

September Average Humidity in Aljezur

This chart illustrates the average monthly humidity levels in Aljezur, 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 Aljezur is approximately 71%, 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 Aljezur

In Aljezur in September, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Aljezur.

Maximum UV Index Levels in Aljezur for September

The chart shows the monthly maximum UV Index (UVI) for Aljezur 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 Aljezur typically reaches 9, which falls under the very high exposure category.

Data source: Aljezur 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 Aljezur Compares to Other Months

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

This table compares monthly weather conditions in Aljezur, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	11°C (53°F)	27 mm (1.1 inches)	80%	moderate
February Weather	13°C (56°F)	45 mm (1.8 inches)	73%	moderate
March Weather	14°C (57°F)	75 mm (2.9 inches)	71%	high
April Weather	15°C (60°F)	58 mm (2.3 inches)	69%	very high
May Weather	18°C (65°F)	20 mm (0.8 inches)	69%	very high
June Weather	20°C (67°F)	8 mm (0.3 inches)	67%	extreme
July Weather	21°C (70°F)	3 mm (0.1 inches)	69%	very high
August Weather	22°C (72°F)	1 mm (0.0 inches)	68%	very high
September Weather	21°C (71°F)	7 mm (0.3 inches)	71%	very high
October Weather	19°C (66°F)	32 mm (1.3 inches)	75%	high
November Weather	15°C (59°F)	52 mm (2.1 inches)	78%	moderate
December Weather	13°C (56°F)	49 mm (1.9 inches)	81%	moderate