September Weather in Lajes, Portugal

Last updated: August 27, 2025

In September, the average temperature in Lajes, Portugal is a comfortable 22°C (71°F). Expect a minimum of 19°C (66°F) and a maximum of 24°C (76°F). With 52 mm (2.1 in) of precipitation spread over 11 days, it's wise to bring an umbrella. The average humidity hovers around 83%, adding to the overall balmy atmosphere. Enjoy your visit!

September Temperature in Lajes

In September in Lajes, the average temperature is 22°C (71°F). Maximum temperatures can reach 24°C (76°F), while minimums can drop to as low as 19°C (66°F). This pleasant climate makes Lajes an ideal destination for travelers looking to enjoy mild weather and outdoor activities.

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

The chart illustrates September temperature patterns in Lajes, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lajes, September typically has an average temperature of 22°C (71°F), with highs reaching up to 24°C (76°F) and lows dropping to around 19°C (66°F).

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

September Precipitation in Lajes

In Lajes in September, the total precipitation amount is 52 mm (2.1 in) over the course of 11 days.

September Precipitation Trends in Lajes

The chart displays monthly precipitation patterns in Lajes, 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 Lajes, September typically receives around 52 mm (2.1 inches) of precipitation spread over approximately 11 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 Lajes

In Lajes in September humidity is 83%. With an average temperature of 22°C (71°F), this humidity feels like a warm blanket wrapping around you, making travel a bit sticky but still enjoyable, as long as you stay hydrated and take breaks in the shade.

September Average Humidity in Lajes

This chart illustrates the average monthly humidity levels in Lajes, 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 Lajes is approximately 83%, 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 Lajes

In Lajes 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 Lajes.

Maximum UV Index Levels in Lajes for September

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

Data source: Lajes 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 Lajes Compares to Other Months

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

This table compares monthly weather conditions in Lajes, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	16°C (60°F)	92 mm (3.6 inches)	84%	moderate
February Weather	15°C (59°F)	79 mm (3.1 inches)	83%	moderate
March Weather	15°C (59°F)	56 mm (2.2 inches)	85%	high
April Weather	15°C (59°F)	74 mm (2.9 inches)	85%	very high
May Weather	16°C (62°F)	59 mm (2.3 inches)	83%	very high
June Weather	18°C (65°F)	41 mm (1.6 inches)	85%	extreme
July Weather	21°C (69°F)	24 mm (1.0 inches)	86%	very high
August Weather	22°C (72°F)	53 mm (2.1 inches)	83%	very high
September Weather	22°C (71°F)	52 mm (2.1 inches)	83%	very high
October Weather	20°C (68°F)	79 mm (3.1 inches)	79%	high
November Weather	18°C (64°F)	137 mm (5.4 inches)	80%	moderate
December Weather	17°C (62°F)	118 mm (4.6 inches)	85%	moderate