September Weather in A dos Francos, Portugal

Last updated: August 27, 2025

In September, the average temperature in A dos Francos, Portugal is a pleasant 21°C (69°F). You'll experience a range from a cool 12°C (54°F) to a warm 35°C (95°F). Be prepared for some light showers, as there's an average precipitation of 27 mm (1.1 in) over 3 days. With an average humidity of 67%, it's the perfect time to enjoy the climate!

September Temperature in A dos Francos

In September in A dos Francos, the average temperature is 21°C (69°F). The maximum can reach 35°C (95°F), and the minimum can be as low as 12°C (54°F). This makes A dos Francos a great destination for travelers seeking warm weather, but it's wise to prepare for both hot days and cooler nights.

September Weather in A dos Francos: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in A dos Francos, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In A dos Francos, September typically has an average temperature of 21°C (69°F), with highs reaching up to 35°C (95°F) and lows dropping to around 12°C (54°F).

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

September Precipitation in A dos Francos

In A dos Francos in September, the total precipitation amount is 27 mm (1.1 in) over the course of 3 days.

September Precipitation Trends in A dos Francos

The chart displays monthly precipitation patterns in A dos Francos, 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 A dos Francos, September typically receives around 27 mm (1.1 inches) of precipitation spread over approximately 3 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

September Humidity in A dos Francos

In A dos Francos in September, humidity is 67%. With an average temperature of 21°C (69°F), this humidity feels like a warm, enveloping embrace, making travel enjoyable yet slightly sticky. It encourages you to seek shade and sip cool drinks while exploring, adding a tropical flair to your adventures.

September Average Humidity in A dos Francos

This chart illustrates the average monthly humidity levels in A dos Francos, 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 A dos Francos is approximately 67%, 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 A dos Francos

In A dos Francos 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 A dos Francos.

Maximum UV Index Levels in A dos Francos for September

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

Data source: A dos Francos 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 A dos Francos Compares to Other Months

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

This table compares monthly weather conditions in A dos Francos, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	10°C (51°F)	41 mm (1.6 inches)	85%	moderate
February Weather	12°C (54°F)	53 mm (2.1 inches)	75%	moderate
March Weather	13°C (56°F)	74 mm (2.9 inches)	72%	high
April Weather	15°C (59°F)	82 mm (3.2 inches)	70%	very high
May Weather	18°C (64°F)	39 mm (1.5 inches)	70%	very high
June Weather	19°C (67°F)	16 mm (0.6 inches)	63%	extreme
July Weather	21°C (70°F)	6 mm (0.2 inches)	60%	very high
August Weather	21°C (70°F)	6 mm (0.2 inches)	60%	very high
September Weather	21°C (69°F)	27 mm (1.1 inches)	67%	very high
October Weather	18°C (65°F)	58 mm (2.3 inches)	74%	high
November Weather	14°C (57°F)	88 mm (3.5 inches)	83%	moderate
December Weather	12°C (54°F)	64 mm (2.5 inches)	85%	moderate