nomadseason

Monthly climate in Macarthur, Australia

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Macarthur features a oceanic climate (Cfb). Temperatures typically range between 9 °C (48 °F) and 19 °C (66 °F) through the year, but rarely can drop to -1 °C (30 °F) or can rise to as high as 43 °C (109 °F). The average annual precipitation amounts to about 692 mm (27.2 inches) and receives 117 rainy days on the 1 mm (0.04 inches) threshold annually. Macarthur enjoys an average of 3120 hours of sunshine throughout the year, and daylight varies from 9 hours 33 minutes to 14 hours 44 minutes per day.

Monthly average temperatures in Macarthur, Australia

The warmest months in Macarthur are January, February and March, with daily mean temperatures ranging from 17 to 19 °C (63 - 66 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 9 to 9 °C (48 - 49 °F) throughout the day. On average each year, Macarthur experiences 54 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 Macarthur. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum41°C
(107°F)		38°C
(100°F)		39°C
(102°F)		33°C
(92°F)		24°C
(75°F)		18°C
(65°F)		17°C
(64°F)		20°C
(68°F)		27°C
(80°F)		32°C
(90°F)		34°C
(94°F)		43°C
(109°F)
Mean maximum39°C
(102°F)		35°C
(95°F)		33°C
(92°F)		29°C
(84°F)		21°C
(71°F)		16°C
(60°F)		17°C
(62°F)		18°C
(64°F)		23°C
(74°F)		28°C
(83°F)		32°C
(89°F)		36°C
(97°F)
Average high25°C
(78°F)		24°C
(75°F)		23°C
(74°F)		19°C
(67°F)		15°C
(60°F)		13°C
(56°F)		12°C
(55°F)		13°C
(56°F)		15°C
(59°F)		17°C
(64°F)		20°C
(69°F)		22°C
(72°F)
Daily mean19°C
(66°F)		18°C
(64°F)		17°C
(63°F)		14°C
(58°F)		11°C
(53°F)		9°C
(49°F)		9°C
(48°F)		9°C
(49°F)		11°C
(52°F)		13°C
(55°F)		15°C
(59°F)		16°C
(62°F)
Average low13°C
(55°F)		13°C
(55°F)		12°C
(54°F)		10°C
(50°F)		8°C
(47°F)		6°C
(43°F)		6°C
(43°F)		6°C
(43°F)		7°C
(44°F)		8°C
(46°F)		9°C
(49°F)		11°C
(51°F)
Mean minimum8°C
(46°F)		7°C
(44°F)		7°C
(44°F)		5°C
(41°F)		3°C
(38°F)		2°C
(36°F)		1°C
(34°F)		1°C
(35°F)		1°C
(34°F)		3°C
(38°F)		4°C
(39°F)		5°C
(41°F)
Minimum6°C
(44°F)		5°C
(40°F)		5°C
(41°F)		3°C
(37°F)		0°C
(33°F)		0°C
(33°F)		-1°C
(30°F)		1°C
(33°F)		-1°C
(31°F)		2°C
(36°F)		2°C
(37°F)		3°C
(37°F)

Compare climate in Macarthur with other places

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

Monthly average precipitation in Macarthur, Australia

Macarthur usually has the most precipitation in July, August and October, with an average of 13 rainy days and 79 mm (3.1 inches) of precipitation per month. The driest months in Macarthur are January, February and March. On average, 31 mm (1.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Macarthur. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)30 (1.2)28 (1.1)34 (1.3)48 (1.9)76 (3.0)57 (2.2)76 (3.0)85 (3.4)72 (2.8)76 (3.0)67 (2.6)43 (1.7)
Average precipitation days (≥ 1 mm)45781391216141397

Monthly sunshine hours in Macarthur, Australia

The sunniest months in Macarthur are February, November and December, when the sun shines an average of 10 hours 24 minutes a day. Least sunny months in Macarthur: May, June and July receive an average of 6 hours 39 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Macarthur. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours284287285231205194212235254279306342
Mean daily daylight hours14h 27m13h 29m12h 17m11h 4m10h 3m9h 33m9h 48m10h 41m11h 50m13h 4m14h 10m14h 44m

Solar UV radiation in Macarthur, Australia

Macarthur experiences the highest level of ultraviolet (UV) radiation in January, November and December, when the maximum UV index can reach values of 12 - 14, which corresponds to the Extreme category of sun exposure. May, June and July are in the Moderate exposure category. In these months, the maximum values of the UV index do not exceed 4. For more detailed information, check out our hourly Macarthur UV Index data.

Average daily maximum UV levels by month for Macarthur. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)14121174335791214