July Weather in Portland, Australia

Last updated: August 22, 2025

In July, the average temperature in Portland, Australia is a cool 11°C (52°F), with highs reaching a comfortable 17°C (63°F) and lows dipping down to 5°C (42°F). Expect about 122 mm (4.8 in) of precipitation spread over 17 days, contributing to a relatively high average humidity of 78%. Stay prepared for wet weather while enjoying the crisp atmosphere!

July Temperature in Portland

In July in Portland, the average temperature is 11°C (52°F). Maximums can reach 17°C (63°F) and minimums can be as low as 5°C (42°F). This mild climate makes it a great time to explore the sights and enjoy outdoor activities.

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

The chart illustrates July temperature patterns in Portland, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Portland, July typically has an average temperature of 11°C (52°F), with highs reaching up to 17°C (63°F) and lows dropping to around 5°C (42°F).

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

July Precipitation in Portland

In Portland in July, the precipitation amount is 122 mm (4.8 in) spread over the course of 17 days.

July Precipitation Trends in Portland

The chart displays monthly precipitation patterns in Portland, 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 Portland, July typically receives around 122 mm (4.8 inches) of precipitation spread over approximately 17 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 Portland

In Portland in July humidity is 78%. With an average temperature of 11°C (52°F), this humidity feels like a damp blanket wrapping around you, making outdoor activities somewhat uncomfortable and travel more challenging as you navigate the moist air.

July Average Humidity in Portland

This chart illustrates the average monthly humidity levels in Portland, 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 Portland is approximately 78%, 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 Portland

In Portland in July, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Portland, you can check the information here.

Maximum UV Index Levels in Portland for July

The chart shows the monthly maximum UV Index (UVI) for Portland 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 Portland typically reaches 3, which falls under the moderate exposure category.

Data source: Portland 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 Portland Compares to Other Months

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

This table compares monthly weather conditions in Portland, showing how July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	18°C (64°F)	32 mm (1.3 inches)	76%	extreme
February Weather	17°C (63°F)	31 mm (1.2 inches)	75%	extreme
March Weather	17°C (63°F)	35 mm (1.4 inches)	76%	very high
April Weather	15°C (60°F)	51 mm (2.0 inches)	76%	high
May Weather	13°C (56°F)	92 mm (3.6 inches)	79%	moderate
June Weather	11°C (53°F)	81 mm (3.2 inches)	78%	moderate
July Weather	11°C (52°F)	122 mm (4.8 inches)	78%	moderate
August Weather	11°C (52°F)	113 mm (4.4 inches)	77%	moderate
September Weather	12°C (54°F)	86 mm (3.4 inches)	76%	high
October Weather	13°C (56°F)	74 mm (2.9 inches)	76%	very high
November Weather	15°C (59°F)	68 mm (2.7 inches)	76%	extreme
December Weather	16°C (61°F)	44 mm (1.7 inches)	76%	extreme