September Weather in Penela, Portugal

Last updated: August 27, 2025

The average temperature in Penela, Portugal during September is a pleasant 20°C (68°F). Temperatures can vary significantly, with a minimum of 9°C (48°F) and soaring up to a maximum of 37°C (98°F). Expect approximately 40 mm (1.6 in) of precipitation over 4 days, and enjoy a comfortable average humidity of 67%.

September Temperature in Penela

In September in Penela, the average temperature is 20°C (68°F). The maximum can reach 37°C (98°F), and the minimum can be as low as 9°C (48°F). This climate makes Penela an ideal destination for travelers seeking warm and varied weather.

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

The chart illustrates September temperature patterns in Penela, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Penela, September typically has an average temperature of 20°C (68°F), with highs reaching up to 37°C (98°F) and lows dropping to around 9°C (48°F).

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

September Precipitation in Penela

In Penela in September, the precipitation amount is 40 mm (1.6 in) spread over a duration of 4 days.

September Precipitation Trends in Penela

The chart displays monthly precipitation patterns in Penela, 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 Penela, September typically receives around 40 mm (1.6 inches) of precipitation spread over approximately 4 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 Penela

In Penela in September humidity is 67%. With an average temperature of 20°C (68°F), this humidity feels like a warm embrace, making travel comfortable yet slightly sticky, as the air clings to your skin and invites you to enjoy the sights at a leisurely pace.

September Average Humidity in Penela

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

In Penela 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 Penela.

Maximum UV Index Levels in Penela for September

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

Data source: Penela 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 Penela Compares to Other Months

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

This table compares monthly weather conditions in Penela, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	9°C (48°F)	63 mm (2.5 inches)	85%	moderate
February Weather	11°C (52°F)	88 mm (3.5 inches)	75%	moderate
March Weather	12°C (54°F)	121 mm (4.8 inches)	72%	high
April Weather	14°C (57°F)	123 mm (4.8 inches)	70%	very high
May Weather	17°C (63°F)	65 mm (2.6 inches)	70%	very high
June Weather	18°C (65°F)	33 mm (1.3 inches)	63%	extreme
July Weather	20°C (69°F)	10 mm (0.4 inches)	60%	very high
August Weather	21°C (70°F)	10 mm (0.4 inches)	60%	very high
September Weather	20°C (68°F)	40 mm (1.6 inches)	67%	very high
October Weather	17°C (62°F)	98 mm (3.9 inches)	74%	high
November Weather	12°C (54°F)	127 mm (5.0 inches)	83%	moderate
December Weather	11°C (51°F)	115 mm (4.5 inches)	85%	moderate