July Weather in Porto, Brazil

Last updated: August 22, 2025

In Porto, Brazil, the average temperature in July is a warm 28°C (82°F). Expect a comfortable range with minimums dipping to 18°C (65°F) and maximums soaring to 35°C (95°F). During this month, you can anticipate about 18 mm (0.7 in) of precipitation over 3 days, all while enjoying an average humidity of 52%.

July Temperature in Porto

In July in Porto, the average temperature is 28°C (82°F), with maximums reaching up to 35°C (95°F) and minimums dropping as low as 18°C (65°F). This pleasant climate makes it an ideal time for travelers to explore and enjoy outdoor activities in Porto.

July Weather in Porto: Daily Temperature Highs, Lows, and Averages

The chart illustrates July temperature patterns in Porto, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Porto, July typically has an average temperature of 28°C (82°F), with highs reaching up to 35°C (95°F) and lows dropping to around 18°C (65°F).

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

July Precipitation in Porto

In Porto in July, the precipitation amount is 18 mm (0.7 in) over a span of 3 days.

July Precipitation Trends in Porto

The chart displays monthly precipitation patterns in Porto, with values for each month alongside July’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how July’s conditions compare to those of other months. In Porto, July typically receives around 18 mm (0.7 inches) of precipitation spread over approximately 3 days.

Data source: Precipitation data for July generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

July Humidity in Porto

In Porto in July, humidity is 52%. With an average temperature of 28°C (82°F), this humidity feels like a gentle embrace, making travel pleasant yet slightly sticky, prompting you to seek out refreshing drinks and shaded spots as you explore.

July Average Humidity in Porto

This chart illustrates the average monthly humidity levels in Porto, with July’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In July, average humidity in Porto is approximately 52%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for July generated using information from the Copernicus Climate Change Service.

July UV Index in Porto

In Porto in July, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Porto.

Maximum UV Index Levels in Porto for July

The chart shows the monthly maximum UV Index (UVI) for Porto in July, 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 July, the maximum UV index in Porto typically reaches 11, which falls under the extreme exposure category.

Data source: Porto July 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 July Weather in Porto Compares to Other Months

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

This table compares monthly weather conditions in Porto, showing how July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	28°C (82°F)	194 mm (7.6 inches)	90%	extreme
February Weather	27°C (81°F)	315 mm (12.4 inches)	91%	extreme
March Weather	27°C (80°F)	409 mm (16.1 inches)	92%	extreme
April Weather	27°C (81°F)	312 mm (12.3 inches)	93%	extreme
May Weather	27°C (81°F)	149 mm (5.9 inches)	88%	extreme
June Weather	28°C (82°F)	22 mm (0.9 inches)	75%	extreme
July Weather	28°C (82°F)	18 mm (0.7 inches)	52%	extreme
August Weather	29°C (84°F)	3 mm (0.1 inches)	42%	extreme
September Weather	30°C (86°F)	2 mm (0.1 inches)	36%	extreme
October Weather	30°C (87°F)	7 mm (0.3 inches)	35%	extreme
November Weather	30°C (86°F)	61 mm (2.4 inches)	43%	extreme
December Weather	29°C (85°F)	69 mm (2.7 inches)	76%	extreme