September Weather in Mealhada, Portugal

Last updated: August 27, 2025

In September, the average temperature in Mealhada, Portugal hovers around 20°C (69°F). Expect a range where temperatures can drop to a chilly 10°C (50°F) or soar to a sweltering 36°C (97°F). This month, you can also anticipate 37 mm (1.4 in) of precipitation spread over 4 days, with an average humidity level of 71%. Stay prepared and enjoy the seasonal shifts!

September Temperature in Mealhada

In September in Mealhada, the average temperature is 20°C (69°F), with maximums reaching up to 36°C (97°F) and minimums dropping as low as 10°C (50°F). It's a great time to visit for those who enjoy mild temperatures during the day and cooler evenings.

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

The chart illustrates September temperature patterns in Mealhada, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mealhada, September typically has an average temperature of 20°C (69°F), with highs reaching up to 36°C (97°F) and lows dropping to around 10°C (50°F).

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

September Precipitation in Mealhada

In Mealhada in September, the precipitation amount is 37 mm (1.4 in) over the course of 4 days.

September Precipitation Trends in Mealhada

The chart displays monthly precipitation patterns in Mealhada, 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 Mealhada, September typically receives around 37 mm (1.4 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 Mealhada

In Mealhada in September, humidity is 71%. With an average temperature of 20°C (69°F), this humidity feels like a warm, enveloping blanket that can quickly lead to discomfort for travelers. Staying hydrated and taking breaks in shaded areas becomes essential to enjoy sightseeing without feeling fatigued.

September Average Humidity in Mealhada

This chart illustrates the average monthly humidity levels in Mealhada, 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 Mealhada is approximately 71%, 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 Mealhada

In Mealhada 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 Mealhada.

Maximum UV Index Levels in Mealhada for September

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

Data source: Mealhada 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 Mealhada Compares to Other Months

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

This table compares monthly weather conditions in Mealhada, 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 (49°F)	70 mm (2.7 inches)	87%	moderate
February Weather	11°C (53°F)	101 mm (4.0 inches)	81%	moderate
March Weather	12°C (55°F)	121 mm (4.8 inches)	78%	high
April Weather	14°C (58°F)	121 mm (4.8 inches)	79%	very high
May Weather	17°C (64°F)	60 mm (2.4 inches)	78%	very high
June Weather	19°C (66°F)	35 mm (1.4 inches)	71%	extreme
July Weather	21°C (70°F)	11 mm (0.4 inches)	63%	very high
August Weather	21°C (70°F)	12 mm (0.5 inches)	64%	very high
September Weather	20°C (69°F)	37 mm (1.4 inches)	71%	very high
October Weather	17°C (63°F)	94 mm (3.7 inches)	79%	high
November Weather	13°C (55°F)	133 mm (5.3 inches)	86%	moderate
December Weather	11°C (52°F)	135 mm (5.3 inches)	87%	low