April Weather in Portland, Australia

Last updated: August 22, 2025

In April, the average temperature in Portland, Australia is a comfortable 13°C (56°F). Expect a minimum temperature of 0°C (32°F) and a maximum of 28°C (83°F), perfect for a range of activities. With an average precipitation of 23 mm (0.9 in) spread over 3 days, you'll want to keep an umbrella handy. The average humidity sits at a moderate 74%, making this month pleasantly refreshing.

April Temperature in Portland

In April in Portland, the average temperature is 13°C (56°F), with maximums reaching up to 28°C (83°F) and minimums dropping as low as 0°C (32°F). This diverse temperature range makes Portland a great destination for travelers looking to experience both warmth and the crispness of cooler weather.

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

The chart illustrates April 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, April typically has an average temperature of 13°C (56°F), with highs reaching up to 28°C (83°F) and lows dropping to around 0°C (32°F).

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

April Precipitation in Portland

In Portland in April, the precipitation amount is 23 mm (0.9 in) over the course of 3 days.

April Precipitation Trends in Portland

The chart displays monthly precipitation patterns in Portland, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In Portland, April typically receives around 23 mm (0.9 inches) of precipitation spread over approximately 3 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

April Humidity in Portland

In Portland in April humidity is 74%. With an average temperature of 13°C (56°F), this humidity feels like a damp chill that can make outdoor activities uncomfortable, especially for travelers unaccustomed to such conditions.

April Average Humidity in Portland

This chart illustrates the average monthly humidity levels in Portland, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in Portland is approximately 74%, offering insight into how humid the weather typically is during this month.

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

April UV Index in Portland

In Portland in April, 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 Portland.

Maximum UV Index Levels in Portland for April

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

Data source: Portland April 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 April 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 April’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 April’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