September Weather in Cela, Portugal

Last updated: August 27, 2025

In September, the average temperature in Cela, Portugal is a pleasant 20°C (68°F), with daytime highs reaching up to 34°C (94°F) and lows dipping to a cool 12°C (54°F). Expect about 30 mm (1.2 in) of precipitation spread over 3 days, and an average humidity of 67%, creating a comfortable atmosphere for exploration.

September Temperature in Cela

In September in Cela, the average temperature is 20°C (68°F). Maximum temperatures can reach 34°C (94°F) while the minimum can drop to as low as 12°C (54°F). This mild climate makes it an ideal time for travelers to explore the outdoors and enjoy various activities.

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

The chart illustrates September temperature patterns in Cela, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cela, September typically has an average temperature of 20°C (68°F), with highs reaching up to 34°C (94°F) and lows dropping to around 12°C (54°F).

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

September Precipitation in Cela

In Cela in September, the precipitation amount is 30 mm (1.2 in) over the course of 3 days.

September Precipitation Trends in Cela

The chart displays monthly precipitation patterns in Cela, 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 Cela, September typically receives around 30 mm (1.2 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 Cela

In Cela 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 Cela

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

In Cela 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 Cela.

Maximum UV Index Levels in Cela for September

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

Data source: Cela 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 Cela Compares to Other Months

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

This table compares monthly weather conditions in Cela, 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 (51°F)	50 mm (2.0 inches)	85%	moderate
February Weather	12°C (54°F)	58 mm (2.3 inches)	75%	moderate
March Weather	13°C (56°F)	87 mm (3.4 inches)	72%	high
April Weather	14°C (58°F)	95 mm (3.7 inches)	70%	very high
May Weather	17°C (63°F)	47 mm (1.8 inches)	70%	very high
June Weather	18°C (65°F)	25 mm (1.0 inches)	63%	extreme
July Weather	20°C (68°F)	10 mm (0.4 inches)	60%	very high
August Weather	20°C (69°F)	7 mm (0.3 inches)	60%	very high
September Weather	20°C (68°F)	30 mm (1.2 inches)	67%	very high
October Weather	18°C (64°F)	72 mm (2.8 inches)	74%	high
November Weather	14°C (57°F)	97 mm (3.8 inches)	83%	moderate
December Weather	12°C (54°F)	74 mm (2.9 inches)	85%	moderate