June Weather in Portland, Australia

Last updated: August 22, 2025

In June, the average temperature in Portland, Australia hovers around 7°C (44°F), with a potential dip to a chilly -4°C (24°F) and peaks reaching up to 19°C (66°F). Expect about 28 mm (1.1 in) of rainfall spread over 4 days, contributing to a relatively high average humidity of 78%.

June Temperature in Portland

In June in Portland, the average temperature is 7°C (44°F). The maximum can reach 19°C (66°F), while the minimum can drop as low as -4°C (24°F). Make sure to pack layers to stay comfortable during your travels!

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

The chart illustrates June 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, June typically has an average temperature of 7°C (44°F), with highs reaching up to 19°C (66°F) and lows dropping to around -4°C (24°F).

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

June Precipitation in Portland

In Portland in June, the precipitation amount is 28 mm (1.1 in) over the course of 4 days.

June Precipitation Trends in Portland

The chart displays monthly precipitation patterns in Portland, with values for each month alongside June’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how June’s conditions compare to those of other months. In Portland, June typically receives around 28 mm (1.1 inches) of precipitation spread over approximately 4 days.

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

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Millimeters (mm) Inches (in)

June Humidity in Portland

In Portland in June, humidity is 78%. With an average temperature of 7°C (44°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities less enjoyable and prompting travelers to seek cozy indoor spaces or warm beverages for comfort.

June Average Humidity in Portland

This chart illustrates the average monthly humidity levels in Portland, with June’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In June, average humidity in Portland is approximately 78%, offering insight into how humid the weather typically is during this month.

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

June UV Index in Portland

In Portland in June, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Portland for better planning.

Maximum UV Index Levels in Portland for June

The chart shows the monthly maximum UV Index (UVI) for Portland in June, 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 June, the maximum UV index in Portland typically reaches 4, which falls under the moderate exposure category.

Data source: Portland June 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 June 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 June’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 June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	21°C (70°F)	44 mm (1.7 inches)	55%	extreme
February Weather	19°C (66°F)	72 mm (2.8 inches)	60%	extreme
March Weather	17°C (63°F)	113 mm (4.4 inches)	68%	extreme
April Weather	13°C (56°F)	23 mm (0.9 inches)	74%	very high
May Weather	9°C (49°F)	26 mm (1.0 inches)	78%	high
June Weather	7°C (44°F)	28 mm (1.1 inches)	78%	moderate
July Weather	6°C (43°F)	33 mm (1.3 inches)	79%	moderate
August Weather	6°C (44°F)	46 mm (1.8 inches)	74%	high
September Weather	10°C (50°F)	35 mm (1.4 inches)	69%	very high
October Weather	14°C (57°F)	57 mm (2.3 inches)	57%	extreme
November Weather	16°C (61°F)	88 mm (3.5 inches)	53%	extreme
December Weather	19°C (66°F)	76 mm (3.0 inches)	62%	extreme