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Monthly climate in Northam, Western Australia, Australia

Last updated: March 2, 2024

Under the Köppen–Geiger climate classification Northam features a hot-summer Mediterranean climate (Csa). Temperatures typically range between 11 °C (53 °F) and 25 °C (77 °F) through the year, but rarely can drop to 0 °C (33 °F) or can rise to as high as 43 °C (109 °F). The average annual precipitation amounts to about 371 mm (14.6 inches) and receives 49 rainy days on the 1 mm (0.04 inches) threshold annually. Northam enjoys an average of 3657 hours of sunshine throughout the year, and daylight varies from 10 hours 6 minutes to 14 hours 9 minutes per day.

Monthly average temperatures in Northam, Western Australia, Australia §

The warmest months in Northam are January, February and December, with daily mean temperatures ranging from 24 to 25 °C (75 - 77 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 11 to 12 °C (53 - 54 °F) throughout the day. On average each year, Northam experiences 151 days above 25 °C (77.0 °F) and 0 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Northam, Western Australia, 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 43°C
(109°F)		 41°C
(106°F)		 39°C
(103°F)		 37°C
(98°F)		 30°C
(87°F)		 25°C
(78°F)		 23°C
(74°F)		 27°C
(80°F)		 30°C
(86°F)		 35°C
(95°F)		 40°C
(105°F)		 42°C
(108°F)
Mean maximum 40°C
(105°F)		 39°C
(102°F)		 37°C
(98°F)		 33°C
(92°F)		 28°C
(83°F)		 22°C
(71°F)		 21°C
(70°F)		 24°C
(75°F)		 28°C
(82°F)		 33°C
(91°F)		 37°C
(99°F)		 40°C
(103°F)
Average high 32°C
(90°F)		 31°C
(88°F)		 29°C
(84°F)		 25°C
(78°F)		 21°C
(70°F)		 18°C
(65°F)		 17°C
(62°F)		 17°C
(62°F)		 20°C
(68°F)		 23°C
(74°F)		 27°C
(82°F)		 32°C
(89°F)
Daily mean 25°C
(77°F)		 24°C
(76°F)		 22°C
(73°F)		 19°C
(66°F)		 14°C
(58°F)		 12°C
(54°F)		 12°C
(53°F)		 11°C
(53°F)		 13°C
(56°F)		 17°C
(62°F)		 20°C
(68°F)		 24°C
(75°F)
Average low 17°C
(63°F)		 18°C
(64°F)		 17°C
(62°F)		 13°C
(56°F)		 9°C
(49°F)		 8°C
(46°F)		 7°C
(46°F)		 6°C
(44°F)		 7°C
(46°F)		 10°C
(50°F)		 13°C
(55°F)		 16°C
(61°F)
Mean minimum 12°C
(53°F)		 12°C
(53°F)		 10°C
(50°F)		 7°C
(45°F)		 4°C
(40°F)		 3°C
(38°F)		 3°C
(37°F)		 2°C
(35°F)		 2°C
(36°F)		 4°C
(40°F)		 7°C
(46°F)		 9°C
(49°F)
Minimum 10°C
(50°F)		 8°C
(47°F)		 7°C
(46°F)		 4°C
(40°F)		 1°C
(35°F)		 0°C
(33°F)		 2°C
(35°F)		 1°C
(34°F)		 1°C
(34°F)		 3°C
(37°F)		 6°C
(43°F)		 6°C
(43°F)

Compare climate in Northam with other places

Compare temperature, precipitation, sunshine, UV index in Northam, Western Australia, Australia with other places around the world.

Monthly average precipitation in Northam, Western Australia, Australia §

Northam usually has the most precipitation in June, July and August, with an average of 8 rainy days and 55 mm (2.2 inches) of precipitation per month. The driest months in Northam are April, November and December. On average, 10 mm (0.4 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Northam, Western Australia, 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) 22 (0.9) 49 (1.9) 27 (1.1) 14 (0.5) 31 (1.2) 52 (2.0) 58 (2.3) 55 (2.2) 22 (0.9) 24 (1.0) 13 (0.5) 4 (0.2)
Average precipitation days (≥ 1 mm) 1 4 3 1 4 7 10 8 4 4 2 1

Monthly sunshine hours in Northam, Western Australia, Australia §

The sunniest months in Northam are October, November and December, when the sun shines an average of 11 hours 31 minutes a day. Least sunny months in Northam: May, June and July receive an average of 8 hours 41 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Northam, Western Australia, 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 306 310 321 287 278 254 266 279 292 328 350 380
Mean daily daylight hours 13h 56m 13h 11m 12h 14m 11h 16m 10h 29m 10h 6m 10h 17m 10h 59m 11h 53m 12h 51m 13h 43m 14h 9m

Solar UV radiation in Northam, Western Australia, Australia §

Northam 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 Northam UV Index data.

Average daily maximum UV levels by month for Northam, Western Australia, 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 15 12 9 6 4 5 6 9 11 14 14

Detailed Monthly Weather Insights for Northam, Western Australia, Australia

Discover in-depth weather details for every month in Northam. 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 Northam'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.