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Monthly climate in Coleraine, Australia

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Coleraine features a warm-summer Mediterranean climate (Csb). Temperatures typically range between 8 °C (47 °F) and 20 °C (68 °F) through the year, but rarely can drop to -2 °C (28 °F) or can rise to as high as 44 °C (111 °F). The average annual precipitation amounts to about 607 mm (23.9 inches) and receives 103 rainy days on the 1 mm (0.04 inches) threshold annually. Coleraine enjoys an average of 3044 hours of sunshine throughout the year, and daylight varies from 9 hours 35 minutes to 14 hours 41 minutes per day.

Monthly average temperatures in Coleraine, Australia

The warmest months in Coleraine are January, February and March, with daily mean temperatures ranging from 17 to 20 °C (63 - 68 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 8 to 8 °C (47 - 47 °F) throughout the day. On average each year, Coleraine experiences 66 days above 25 °C (77.0 °F) and 4 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Coleraine. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum41°C
(107°F)		39°C
(102°F)		38°C
(101°F)		33°C
(92°F)		23°C
(74°F)		18°C
(65°F)		17°C
(63°F)		19°C
(67°F)		26°C
(80°F)		32°C
(90°F)		34°C
(93°F)		44°C
(111°F)
Mean maximum39°C
(103°F)		36°C
(97°F)		33°C
(92°F)		29°C
(85°F)		21°C
(70°F)		15°C
(59°F)		16°C
(61°F)		17°C
(63°F)		23°C
(73°F)		28°C
(83°F)		32°C
(89°F)		37°C
(98°F)
Average high27°C
(81°F)		25°C
(77°F)		24°C
(75°F)		20°C
(68°F)		15°C
(59°F)		12°C
(55°F)		12°C
(54°F)		12°C
(55°F)		15°C
(59°F)		18°C
(64°F)		21°C
(70°F)		24°C
(75°F)
Daily mean20°C
(68°F)		18°C
(65°F)		17°C
(63°F)		14°C
(58°F)		11°C
(51°F)		8°C
(47°F)		8°C
(47°F)		8°C
(47°F)		10°C
(50°F)		12°C
(54°F)		15°C
(59°F)		17°C
(63°F)
Average low12°C
(55°F)		12°C
(54°F)		12°C
(53°F)		9°C
(49°F)		7°C
(45°F)		5°C
(41°F)		5°C
(41°F)		5°C
(41°F)		5°C
(42°F)		7°C
(45°F)		9°C
(48°F)		10°C
(51°F)
Mean minimum7°C
(44°F)		6°C
(42°F)		5°C
(42°F)		4°C
(39°F)		2°C
(35°F)		0°C
(33°F)		-0°C
(32°F)		-1°C
(31°F)		-0°C
(32°F)		1°C
(35°F)		2°C
(36°F)		5°C
(40°F)
Minimum4°C
(40°F)		3°C
(38°F)		3°C
(38°F)		2°C
(36°F)		-0°C
(32°F)		-2°C
(29°F)		-2°C
(28°F)		-2°C
(29°F)		-2°C
(29°F)		1°C
(33°F)		0°C
(33°F)		3°C
(38°F)

Compare climate in Coleraine with other places

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

Monthly average precipitation in Coleraine, Australia

Coleraine usually has the most precipitation in May, July and August, with an average of 12 rainy days and 73 mm (2.9 inches) of precipitation per month. The driest months in Coleraine are January, February and March. On average, 26 mm (1.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Coleraine. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)27 (1.1)24 (1.0)25 (1.0)40 (1.6)72 (2.8)46 (1.8)72 (2.8)75 (2.9)66 (2.6)63 (2.5)61 (2.4)36 (1.4)
Average precipitation days (≥ 1 mm)34571191314121186

Monthly sunshine hours in Coleraine, Australia

The sunniest months in Coleraine are February, November and December, when the sun shines an average of 10 hours 9 minutes a day. Least sunny months in Coleraine: May, June and July receive an average of 6 hours 35 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Coleraine. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours282284281219202194209230247262293335
Mean daily daylight hours14h 24m13h 28m12h 17m11h 5m10h 5m9h 35m9h 50m10h 42m11h 50m13h 3m14h 8m14h 41m

Solar UV radiation in Coleraine, Australia

Coleraine 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 Coleraine UV Index data.

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