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Monthly climate in Wilmington, Australia

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Wilmington features a cold semi-arid climate (BSk). Temperatures typically range between 11 °C (51 °F) and 24 °C (76 °F) through the year, but rarely can drop to 0 °C (33 °F) or can rise to as high as 45 °C (113 °F). The average annual precipitation amounts to about 252 mm (9.9 inches) and receives 44 rainy days on the 1 mm (0.04 inches) threshold annually. Wilmington enjoys an average of 3509 hours of sunshine throughout the year, and daylight varies from 10 hours 1 minutes to 14 hours 14 minutes per day.

Monthly average temperatures in Wilmington, Australia

The warmest months in Wilmington are January, February and December, with daily mean temperatures ranging from 22 to 24 °C (73 - 76 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 11 to 11 °C (51 - 52 °F) throughout the day. On average each year, Wilmington experiences 127 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 Wilmington. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum45°C
(113°F)		42°C
(108°F)		39°C
(102°F)		37°C
(99°F)		27°C
(81°F)		23°C
(74°F)		23°C
(74°F)		25°C
(77°F)		34°C
(93°F)		38°C
(101°F)		41°C
(106°F)		45°C
(113°F)
Mean maximum41°C
(107°F)		38°C
(101°F)		36°C
(97°F)		33°C
(91°F)		25°C
(77°F)		19°C
(67°F)		21°C
(71°F)		24°C
(75°F)		31°C
(88°F)		34°C
(93°F)		37°C
(98°F)		40°C
(104°F)
Average high30°C
(87°F)		29°C
(84°F)		28°C
(82°F)		24°C
(76°F)		18°C
(65°F)		16°C
(60°F)		16°C
(61°F)		16°C
(62°F)		21°C
(71°F)		24°C
(76°F)		26°C
(79°F)		29°C
(84°F)
Daily mean24°C
(76°F)		23°C
(73°F)		22°C
(71°F)		18°C
(65°F)		13°C
(56°F)		11°C
(51°F)		11°C
(51°F)		11°C
(52°F)		15°C
(59°F)		18°C
(64°F)		20°C
(68°F)		22°C
(73°F)
Average low18°C
(65°F)		17°C
(63°F)		16°C
(61°F)		13°C
(55°F)		9°C
(49°F)		6°C
(44°F)		6°C
(44°F)		7°C
(44°F)		9°C
(48°F)		11°C
(53°F)		14°C
(57°F)		16°C
(61°F)
Mean minimum14°C
(57°F)		12°C
(54°F)		11°C
(52°F)		8°C
(47°F)		5°C
(41°F)		3°C
(37°F)		2°C
(37°F)		2°C
(37°F)		4°C
(40°F)		7°C
(44°F)		8°C
(46°F)		11°C
(52°F)
Minimum12°C
(54°F)		11°C
(51°F)		9°C
(49°F)		7°C
(44°F)		3°C
(37°F)		0°C
(33°F)		1°C
(33°F)		2°C
(35°F)		2°C
(36°F)		6°C
(43°F)		7°C
(45°F)		10°C
(51°F)

Compare climate in Wilmington with other places

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

Monthly average precipitation in Wilmington, Australia

Wilmington usually has the most precipitation in August, October and November, with an average of 5 rainy days and 32 mm (1.3 inches) of precipitation per month. The driest months in Wilmington are January, March and September. On average, 12 mm (0.5 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Wilmington. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)13 (0.5)19 (0.7)7 (0.3)21 (0.8)22 (0.9)21 (0.8)19 (0.7)28 (1.1)15 (0.6)29 (1.2)38 (1.5)21 (0.8)
Average precipitation days (≥ 1 mm)212344463564

Monthly sunshine hours in Wilmington, Australia

The sunniest months in Wilmington are October, November and December, when the sun shines an average of 11 hours 3 minutes a day. Least sunny months in Wilmington: May, June and July receive an average of 8 hours 0 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Wilmington. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours293310318274255231249262294322334360
Mean daily daylight hours14h 0m13h 14m12h 15m11h 15m10h 25m10h 1m10h 13m10h 56m11h 53m12h 53m13h 46m14h 14m

Solar UV radiation in Wilmington, Australia

Wilmington 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 Wilmington UV Index data.

Average daily maximum UV levels by month for Wilmington. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)151412964468111315