Climate and monthly weather forecastPortland, Australia
Climate and monthly weather forecast
Weather in January
January in Portland, Australia, is a pleasant summer month, with temperature in the range of an average low of 15.1°C (59.2°F) and an average high of 20.6°C (69.1°F). As January takes hold, the average high-temperature is a pleasant 20.6°C (69.1°F), nearly mirroring that of the previous month. Weather in January »Weather in February
The last month of the summer, February, is also an agreeable month in Portland, Australia, with an average temperature varying between 15.8°C (60.4°F) and 20.8°C (69.4°F). February, recording an average high temperature of 20.8°C (69.4°F) and a low temperature of 15.8°C (60.4°F), is Portland's warmest month. Weather in February »Weather in March
March, the first month of the autumn in Portland, is also an enjoyable month, with an average temperature ranging between min 15.1°C (59.2°F) and max 19.7°C (67.5°F). March's arrival brings an average high-temperature of a refreshing 19.7°C (67.5°F), slightly deviating from February's 20.8°C (69.4°F). Weather in March »Weather in April
April, the same as March, is another enjoyable autumn month in Portland, Australia, with temperature in the range of an average high of 17.8°C (64°F) and an average low of 13.5°C (56.3°F). Portland records an average high-temperature of a still comfortable 17.8°C (64°F) in April, closely mirroring the climate of the previous month. Weather in April »Weather in May
The last month of the autumn, May, is another refreshing month in Portland, Australia, with temperature in the range of an average low of 12.2°C (54°F) and an average high of 15.3°C (59.5°F). 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. Weather in May »Weather in June
June, the first month of the winter in Portland, is still a refreshing month, with an average temperature ranging between min 10.4°C (50.7°F) and max 13.7°C (56.7°F). Entering June, Portland's average high-temperature reads a still refreshing 13.7°C (56.7°F), indicating a close resemblance to the previous month's climate. Weather in June »Weather in July
July, the same as June, in Portland, Australia, is another refreshing winter month, with an average temperature varying between 9.9°C (49.8°F) and 13.1°C (55.6°F). July is the coldest month, with an average high-temperature of 13.1°C (55.6°F) and an average low-temperature of 9.9°C (49.8°F). Weather in July »Weather in August
The last month of the winter, August, is another mild month in Portland, Australia, with an average temperature fluctuating between 13.4°C (56.1°F) and 9.6°C (49.3°F). Entering August, Portland's average high-temperature reads a still refreshing 13.4°C (56.1°F), indicating a close resemblance to the previous month's climate. Weather in August »Weather in September
September, the first month of the spring in Portland, is still a mild month, with an average temperature ranging between min 10.2°C (50.4°F) and max 14.4°C (57.9°F). As August transitions into September, the average high-temperature rests at a still mild 14.4°C (57.9°F), maintaining a close resemblance to the previous month. Weather in September »Weather in October
October in Portland, Australia, is a refreshing spring month, with an average temperature fluctuating between 11.3°C (52.3°F) and 16.4°C (61.5°F). A minimal variation is noted in Portland's average high-temperature at the onset of October, reaching a still refreshing 16.4°C (61.5°F) from September's 14.4°C (57.9°F). Weather in October »Weather in November
November, the last month of the spring in Portland, is another refreshing month, with an average temperature ranging between max 17.6°C (63.7°F) and min 12.3°C (54.1°F). Portland registers an average high-temperature of a still comfortable 17.6°C (63.7°F) at the commencement of November, closely related to the preceding month. Weather in November »Weather in December
The first month of the summer, December, is still a refreshing month in Portland, Australia, with temperature in the range of an average low of 13.7°C (56.7°F) and an average high of 19°C (66.2°F). December notes an average high-temperature of a still enjoyable 19°C (66.2°F), subtly differing from November's 17.6°C (63.7°F). Weather in December »Updated: Jan 26, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
The least humid month in Portland, Australia, is January, with an average relative humidity of 72%.
In Portland, Australia, during the entire year, the rain falls for 182 days and collects up to 532mm (20.94") of precipitation.
The months with the warmest seawater in Portland, Australia, are January and February, with an average sea temperature of 17.3°C (63.1°F).
January has the most sunshine of the year in Portland, with an average of 8.8h of sunshine.
January through March and December, with an average maximum UV index of 5, are months with the highest UV index in Portland.
The month of February, characterized by an average high of 20.8°C (69.4°F) and a low of 15.8°C (60.4°F), is recognized as the warmest in Portland, Australia.
February is the month with the least rainfall in Portland. Rain falls for 8.8 days and accumulates 22mm (0.87") of precipitation.
On Sunday, 07. April 2024, at 3:00 am, Daylight Saving Time ends, and the time zone changes from AEDT to AEST. The next Daylight Saving Time starts on Sunday, 06. October 2024, at 2:00 am, and the time zone reverts from AEST to AEDT.
May has the least sunshine of the year, with an average of 5.9h of sunshine.
June and July, with an average relative humidity of 77%, are most humid months in Portland.
With an average of 9h and 30min of daylight, June has the shortest days of the year in Portland.
The months with the lowest UV index in Portland are June through August, with an average maximum UV index of 3.
Portland's temperature records reveal July as the coldest month, marked by average highs of 13.1°C (55.6°F) and lows of 9.9°C (49.8°F).
The month with the most rainfall is August, when the rain falls for 21.2 days and typically aggregates up to 74mm (2.91") of precipitation.
September is the month with the coldest seawater in Portland, with an average sea temperature of 14.2°C (57.6°F).
December has the longest days of the year in Portland, Australia, with an average of 14h and 48min of daylight.
Average temperature
Portland, Australia
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).
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
Portland, Australia
- Average pressure in January:
1013.1mbar - Average pressure in February:
1015.4mbar - Average pressure in March:
1017.2mbar - Average pressure in April:
1019.3mbar - Average pressure in May:
1019.6mbar - Average pressure in June:
1020.7mbar
- Average pressure in July:
1018.4mbar - Average pressure in August:
1016.4mbar - Average pressure in September:
1015.9mbar - Average pressure in October:
1017.3mbar - Average pressure in November:
1014.9mbar - Average pressure in December:
1013.2mbar
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
Portland, Australia
- Average wind speed in January:
17.9km/h - Average wind speed in February:
18.5km/h - Average wind speed in March:
17.8km/h - Average wind speed in April:
17.6km/h - Average wind speed in May:
20km/h - Average wind speed in June:
19.8km/h
- Average wind speed in July:
22.9km/h - Average wind speed in August:
23.6km/h - Average wind speed in September:
21.6km/h - Average wind speed in October:
19.8km/h - Average wind speed in November:
18.4km/h - Average wind speed in December:
18.3km/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
Portland, Australia
The months with the highest relative humidity are June and July (77%).
The month with the lowest relative humidity is January (72%).
Average rainfall
Portland, Australia
The wettest month (with the highest rainfall) is August (74mm).
The driest month (with the least rainfall) is February (22mm).
Average rainfall days
Portland, Australia
- Average rainfall days in January:
9.3 days - Average rainfall days in February:
8.8 days - Average rainfall days in March:
13.6 days - Average rainfall days in April:
15.1 days - Average rainfall days in May:
18.4 days - Average rainfall days in June:
16.7 days
- Average rainfall days in July:
21 days - Average rainfall days in August:
21.2 days - Average rainfall days in September:
18.2 days - Average rainfall days in October:
14.1 days - Average rainfall days in November:
13.1 days - Average rainfall days in December:
12.5 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
Portland, Australia
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 / Average sunshine
Portland, Australia
- Average daylight in January:
14h and 30min - Average daylight in February:
13h and 30min - Average daylight in March:
12h and 18min - Average daylight in April:
11h and 6min - Average daylight in May:
10h and 6min - Average daylight in June:
9h and 30min
- Average daylight in July:
9h and 48min - Average daylight in August:
10h and 42min - Average daylight in September:
11h and 48min - Average daylight in October:
13h and 6min - Average daylight in November:
14h and 12min - Average daylight in December:
14h and 48min
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 January:
8h and 48min - Average sunshine in February:
7h and 36min - Average sunshine in March:
7h and 18min - Average sunshine in April:
6h and 48min - Average sunshine in May:
5h and 54min - Average sunshine in June:
6h and 6min
- Average sunshine in July:
6h and 6min - Average sunshine in August:
6h and 0min - Average sunshine in September:
6h and 42min - Average sunshine in October:
7h and 6min - Average sunshine in November:
7h and 18min - Average sunshine in December:
7h and 54min
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
Portland, Australia
- Average sunshine days in January:
18.1 days - Average sunshine days in February:
15.4 days - Average sunshine days in March:
14 days - Average sunshine days in April:
11.1 days - Average sunshine days in May:
9.2 days - Average sunshine days in June:
11.1 days
- Average sunshine days in July:
8.1 days - Average sunshine days in August:
6.9 days - Average sunshine days in September:
8.2 days - Average sunshine days in October:
13.2 days - Average sunshine days in November:
13.5 days - Average sunshine days in December:
16.2 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
Portland, Australia
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
Portland, Australia
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
Portland, Australia
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).
