Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average sea temperature in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
Portland's entry into May measures an average high-temperature of a moderate 15.3°C (59.5°F), closely parallel to the preceding month. May witnesses a minor deviation from daytime peaks, with an average nighttime temperature of 12.2°C (54°F).Humidity
In Portland, the average relative humidity in May is 75%.Rainfall
In Portland, Australia, in May, during 18.4 rainfall days, 64mm (2.52") of precipitation is typically accumulated. In Portland, during the entire year, the rain falls for 182 days and collects up to 532mm (20.94") of precipitation.Sea temperature
In Portland, Australia, the average seawater temperature in May is 16.1°C (61°F).Note: Most people do not find pleasure in swimming when the water temperature is 16.1°C (61°F). Breathing becomes increasingly difficult to manage as the water temperature drops from 21°C (69.8°F) to 15°C (59°F).
Daylight
In Portland, the average length of the day in May is 10h and 4min.On the first day of the month, sunrise is at 7:15 am and sunset at 5:45 pm. On the last day of May, sunrise is at 7:40 am and sunset at 5:21 pm AEST.
Sunshine
With an average of 5.9h of sunshine, May has the least sunshine of the year.UV index
In May, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In May, a daily UV index of 4 turns into the following recommendations:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Portland in May?
What is the average humidity in May in Portland?
How much does it rain in Portland in May?
What is the sea temperature in May in Portland?
What is the average length of the day in May in Portland?
When is the sunrise / sunset in May in Portland?
What is the month with the least sunshine in Portland?
How many hours of sunshine does Portland have in May?
What is the UV index intensity in May in Portland?
Average temperature in May
Portland, Australia
- Average high temperature in May: 15.3°C
The warmest month (with the highest average high temperature) is February (20.8°C).
The month with the lowest average high temperature is July (13.1°C).
- Average low temperature in May: 12.2°C
The month with the highest average low temperature is February (15.8°C).
The coldest month (with the lowest average low temperature) is August (9.6°C).
Average pressure in May
Portland, Australia
- Average pressure in May: 1019.6mbar
The month with the highest atmospheric pressure is June (1020.7mbar).
The month with the lowest atmospheric pressure is January (1013.1mbar).
Average wind speed in May
Portland, Australia
- Average wind speed in May: 20km/h
The windiest month (with the highest average wind speed) is August (23.6km/h).
The calmest month (with the lowest average wind speed) is April (17.6km/h).
Average humidity in May
Portland, Australia
- Average humidity in May: 75%
The months with the highest relative humidity are June and July (77%).
The month with the lowest relative humidity is January (72%).
Average rainfall in May
Portland, Australia
- Average rainfall in May: 64mm
The wettest month (with the highest rainfall) is August (74mm).
The driest month (with the least rainfall) is February (22mm).
Average rainfall days in May
Portland, Australia
- Average rainfall days in May: 18.4 days
The month with the highest number of rainy days is August (21.2 days).
The month with the least rainy days is February (8.8 days).
Average sea temperature in May
Portland, Australia
- Average sea temperature in May: 16.1°C
The best months for swimming (with the highest average sea temperature) are January and February (17.3°C).
The coldest month (with the lowest average sea temperature) is September (14.2°C).
Average daylight in May /
Average sunshine in May
Portland, Australia
- Average daylight in May: 10h and 1min
The month with the longest days is December (Average daylight: 14h and 48min).
The month with the shortest days is June (Average daylight: 9h and 30min).
- Average sunshine in May: 5h and 5min
The month with the most sunshine is January (Average sunshine: 8h and 48min).
The month with the least sunshine is May (Average sunshine: 5h and 54min).
Average sunshine days in May
Portland, Australia
- Average sunshine days in May: 9.2 days
The month with the most sunshine days is January (18.1 days).
The month with the least sunshine days is August (6.9 days).
Average UV index in May
Portland, Australia
- Average UV index in May: 4
The months with the highest UV index are January, February, March and December (UV index 5).
The months with the lowest UV index are June, July and August (UV index 3).
Average cloud cover in May
Portland, Australia
- Average cloud cover in May: 54
The months with the most cloud cover are May and August (Cloud cover 54).
The month with the least cloud cover is January (Cloud cover 34).
Average visibility in May
Portland, Australia
- Average visibility in May: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Portland, Australia
Weather forecast for your location
2. Allow the app to use your location
