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Monthly climate in Coolamon, Australia

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Coolamon features a humid subtropical climate (Cfa). Temperatures typically range between 8 °C (47 °F) and 26 °C (79 °F) through the year, but rarely can drop to -4 °C (26 °F) or can rise to as high as 45 °C (114 °F). The average annual precipitation amounts to about 514 mm (20.2 inches) and receives 71 rainy days on the 1 mm (0.04 inches) threshold annually. Coolamon enjoys an average of 3364 hours of sunshine throughout the year, and daylight varies from 9 hours 50 minutes to 14 hours 26 minutes per day.

Monthly average temperatures in Coolamon, Australia

The warmest months in Coolamon are January, February and December, with daily mean temperatures ranging from 23 to 26 °C (74 - 79 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 8 to 9 °C (47 - 48 °F) throughout the day. On average each year, Coolamon experiences 140 days above 25 °C (77.0 °F) and 12 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Coolamon. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum45°C
(114°F)		45°C
(114°F)		37°C
(98°F)		35°C
(96°F)		28°C
(83°F)		19°C
(66°F)		21°C
(70°F)		22°C
(72°F)		33°C
(92°F)		35°C
(95°F)		41°C
(105°F)		43°C
(110°F)
Mean maximum42°C
(108°F)		39°C
(103°F)		35°C
(95°F)		29°C
(85°F)		24°C
(76°F)		17°C
(63°F)		19°C
(66°F)		21°C
(69°F)		27°C
(81°F)		30°C
(87°F)		36°C
(97°F)		40°C
(104°F)
Average high33°C
(92°F)		31°C
(87°F)		28°C
(83°F)		23°C
(74°F)		18°C
(64°F)		14°C
(58°F)		14°C
(57°F)		14°C
(58°F)		19°C
(66°F)		23°C
(74°F)		26°C
(80°F)		31°C
(87°F)
Daily mean26°C
(79°F)		24°C
(75°F)		21°C
(70°F)		17°C
(62°F)		12°C
(53°F)		8°C
(47°F)		8°C
(47°F)		9°C
(48°F)		12°C
(54°F)		16°C
(62°F)		20°C
(67°F)		23°C
(74°F)
Average low19°C
(66°F)		17°C
(63°F)		15°C
(59°F)		11°C
(51°F)		7°C
(44°F)		4°C
(39°F)		4°C
(39°F)		3°C
(38°F)		5°C
(42°F)		9°C
(49°F)		13°C
(55°F)		16°C
(60°F)
Mean minimum12°C
(54°F)		9°C
(49°F)		8°C
(47°F)		4°C
(40°F)		1°C
(33°F)		-1°C
(30°F)		-2°C
(29°F)		-2°C
(28°F)		-1°C
(30°F)		2°C
(37°F)		5°C
(40°F)		8°C
(47°F)
Minimum10°C
(51°F)		7°C
(45°F)		5°C
(40°F)		-0°C
(32°F)		-2°C
(29°F)		-3°C
(27°F)		-3°C
(27°F)		-4°C
(26°F)		-2°C
(28°F)		2°C
(35°F)		2°C
(35°F)		7°C
(44°F)

Compare climate in Coolamon with other places

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

Monthly average precipitation in Coolamon, Australia

Coolamon usually has the most precipitation in March, October and November, with an average of 6 rainy days and 66 mm (2.6 inches) of precipitation per month. The driest months in Coolamon are January, April and September. On average, 29 mm (1.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Coolamon. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)33 (1.3)34 (1.3)61 (2.4)26 (1.0)37 (1.5)40 (1.6)39 (1.5)39 (1.6)28 (1.1)55 (2.2)80 (3.2)40 (1.6)
Average precipitation days (≥ 1 mm)455376885875

Monthly sunshine hours in Coolamon, Australia

The sunniest months in Coolamon are October, November and December, when the sun shines an average of 10 hours 54 minutes a day. Least sunny months in Coolamon: June, July and August receive an average of 7 hours 19 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Coolamon. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours293310303266242212223238271314321367
Mean daily daylight hours14h 10m13h 20m12h 16m11h 11m10h 17m9h 50m10h 3m10h 50m11h 52m12h 57m13h 55m14h 26m

Solar UV radiation in Coolamon, Australia

Coolamon experiences the highest level of ultraviolet (UV) radiation in January, November and December, when the maximum UV index can reach values of 13 - 15, 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 5. For more detailed information, check out our hourly Coolamon UV Index data.

Average daily maximum UV levels by month for Coolamon. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)141312853458101315