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Monthly climate in Portland, New South Wales, Australia

Last updated: March 2, 2024

Under the Köppen–Geiger climate classification Portland features a oceanic climate (Cfb). Temperatures typically range between 6 °C (43 °F) and 21 °C (70 °F) through the year, but rarely can drop to -5 °C (24 °F) or can rise to as high as 38 °C (100 °F). The average annual precipitation amounts to about 642 mm (25.3 inches) and receives 89 rainy days on the 1 mm (0.04 inches) threshold annually. Portland enjoys an average of 3194 hours of sunshine throughout the year, and daylight varies from 9 hours 57 minutes to 14 hours 18 minutes per day.

Monthly average temperatures in Portland, New South Wales, Australia §

The warmest months in Portland are January, February and December, with daily mean temperatures ranging from 19 to 21 °C (66 - 70 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 6 to 7 °C (43 - 44 °F) throughout the day. On average each year, Portland experiences 67 days above 25 °C (77.0 °F) and 24 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Portland, New South Wales, Australia. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 38°C
(100°F)		 38°C
(100°F)		 32°C
(90°F)		 28°C
(83°F)		 21°C
(71°F)		 19°C
(66°F)		 18°C
(65°F)		 20°C
(68°F)		 27°C
(82°F)		 28°C
(83°F)		 33°C
(92°F)		 37°C
(99°F)
Mean maximum 34°C
(94°F)		 33°C
(91°F)		 29°C
(85°F)		 25°C
(77°F)		 20°C
(68°F)		 14°C
(58°F)		 16°C
(62°F)		 18°C
(65°F)		 24°C
(75°F)		 26°C
(79°F)		 29°C
(84°F)		 33°C
(92°F)
Average high 27°C
(81°F)		 25°C
(77°F)		 22°C
(72°F)		 19°C
(67°F)		 15°C
(59°F)		 12°C
(54°F)		 12°C
(53°F)		 12°C
(54°F)		 16°C
(62°F)		 20°C
(68°F)		 22°C
(72°F)		 25°C
(77°F)
Daily mean 21°C
(70°F)		 19°C
(66°F)		 17°C
(63°F)		 13°C
(56°F)		 9°C
(49°F)		 7°C
(44°F)		 6°C
(43°F)		 6°C
(44°F)		 10°C
(50°F)		 14°C
(57°F)		 16°C
(61°F)		 19°C
(66°F)
Average low 15°C
(60°F)		 14°C
(57°F)		 13°C
(55°F)		 8°C
(47°F)		 5°C
(41°F)		 3°C
(37°F)		 1°C
(35°F)		 1°C
(35°F)		 4°C
(39°F)		 8°C
(46°F)		 10°C
(50°F)		 13°C
(55°F)
Mean minimum 11°C
(51°F)		 8°C
(47°F)		 7°C
(44°F)		 3°C
(38°F)		 -1°C
(30°F)		 -2°C
(29°F)		 -4°C
(26°F)		 -3°C
(26°F)		 -2°C
(29°F)		 2°C
(35°F)		 4°C
(39°F)		 7°C
(45°F)
Minimum 8°C
(46°F)		 5°C
(42°F)		 3°C
(38°F)		 -0°C
(32°F)		 -3°C
(27°F)		 -4°C
(24°F)		 -5°C
(24°F)		 -4°C
(25°F)		 -4°C
(26°F)		 0°C
(33°F)		 3°C
(38°F)		 5°C
(41°F)

Compare climate in Portland with other places

Compare temperature, precipitation, sunshine, UV index in Portland, New South Wales, Australia with other places around the world.

Monthly average precipitation in Portland, New South Wales, Australia §

Portland usually has the most precipitation in March, November and December, with an average of 11 rainy days and 92 mm (3.6 inches) of precipitation per month. The driest months in Portland are April, May and June. On average, 26 mm (1.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Portland, New South Wales, Australia. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 44 (1.7) 72 (2.8) 113 (4.4) 23 (0.9) 26 (1.0) 28 (1.1) 33 (1.3) 46 (1.8) 35 (1.4) 57 (2.3) 88 (3.5) 76 (3.0)
Average precipitation days (≥ 1 mm) 7 10 12 3 5 4 5 7 5 10 11 10

Monthly sunshine hours in Portland, New South Wales, Australia §

The sunniest months in Portland are October, November and December, when the sun shines an average of 9 hours 53 minutes a day. Least sunny months in Portland: May, June and July receive an average of 7 hours 17 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Portland, New South Wales, Australia. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 266 277 269 260 236 201 232 262 277 287 299 323
Mean daily daylight hours 14h 4m 13h 16m 12h 15m 11h 13m 10h 23m 9h 57m 10h 10m 10h 54m 11h 53m 12h 54m 13h 49m 14h 18m

Solar UV radiation in Portland, New South Wales, Australia §

Portland experiences the highest level of ultraviolet (UV) radiation in January, February and December, when the maximum UV index can reach values of 14 - 15, which corresponds to the Extreme category of sun exposure. May, June and July are in the Moderate / High exposure category. In these months, the maximum values of the UV index do not exceed 6. For more detailed information, check out our hourly Portland UV Index data.

Average daily maximum UV levels by month for Portland, New South Wales, Australia. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 15 14 12 8 6 4 4 6 8 11 13 15

Detailed Monthly Weather Insights for Portland, New South Wales, Australia

Discover in-depth weather details for every month in Portland. Click through the links below for comprehensive overviews of temperature trends, precipitation levels, sunshine hours, and solar UV radiation specifics. Whether planning a visit or simply curious about Portland's climate nuances, these monthly breakdowns provide the information you need for an informed understanding of what to expect throughout the year.

Each link leads to a detailed account of the typical weather conditions for that month, providing both locals and tourists with vital information to plan their daily activities, wardrobe, and travel itineraries accordingly.