September Weather in Sao Joao das Lampas, Portugal

Last updated: August 27, 2025

In September, the average temperature in Sao Joao das Lampas, Portugal hovers around 18°C (65°F), providing a pleasant climate for outdoor activities. Expect a minimum of 15°C (60°F) and a comfy maximum of 23°C (74°F). While enjoying the mild weather, be aware that precipitation can reach 32 mm (1.2 in) over approximately 2 days, and the average humidity sits at 67%, adding a touch of warmth to the air.

September Temperature in Sao Joao das Lampas

In September in Sao Joao das Lampas, the average temperature is 18°C (65°F). Maximums can reach 23°C (74°F), and minimums can be as low as 15°C (60°F). This pleasant climate makes it an ideal time for travelers to explore the sights and enjoy outdoor activities.

September Weather in Sao Joao das Lampas: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Sao Joao das Lampas, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sao Joao das Lampas, September typically has an average temperature of 18°C (65°F), with highs reaching up to 23°C (74°F) and lows dropping to around 15°C (60°F).

Data source: Temperature data for Sao Joao das Lampas generated using information from the Copernicus Climate Change Service.

September Precipitation in Sao Joao das Lampas

In Sao Joao das Lampas in September, the precipitation amount is 32 mm (1.2 in) over the course of 2 days.

September Precipitation Trends in Sao Joao das Lampas

The chart displays monthly precipitation patterns in Sao Joao das Lampas, 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 Sao Joao das Lampas, September typically receives around 32 mm (1.2 inches) of precipitation spread over approximately 2 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 Sao Joao das Lampas

In Sao Joao das Lampas in September humidity is 67%. With an average temperature of 18°C (65°F), this humidity feels like a mild blanket wrapping around you, making outdoor activities feel pleasantly refreshing, yet you may find yourself reaching for a drink more often to stay hydrated while exploring the sights.

September Average Humidity in Sao Joao das Lampas

This chart illustrates the average monthly humidity levels in Sao Joao das Lampas, 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 Sao Joao das Lampas 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 Sao Joao das Lampas

In Sao Joao das Lampas 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 Sao Joao das Lampas.

Maximum UV Index Levels in Sao Joao das Lampas for September

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

Data source: Sao Joao das Lampas 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 Sao Joao das Lampas Compares to Other Months

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

This table compares monthly weather conditions in Sao Joao das Lampas, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	13°C (56°F)	42 mm (1.7 inches)	85%	moderate
February Weather	13°C (56°F)	59 mm (2.3 inches)	75%	moderate
March Weather	14°C (57°F)	64 mm (2.5 inches)	72%	high
April Weather	14°C (58°F)	71 mm (2.8 inches)	70%	very high
May Weather	16°C (61°F)	33 mm (1.3 inches)	70%	very high
June Weather	17°C (63°F)	12 mm (0.5 inches)	63%	extreme
July Weather	18°C (64°F)	3 mm (0.1 inches)	60%	very high
August Weather	18°C (65°F)	4 mm (0.1 inches)	60%	very high
September Weather	18°C (65°F)	32 mm (1.2 inches)	67%	very high
October Weather	18°C (64°F)	53 mm (2.1 inches)	74%	high
November Weather	16°C (60°F)	89 mm (3.5 inches)	83%	moderate
December Weather	14°C (58°F)	73 mm (2.9 inches)	85%	moderate