nomadseason

Monthly climate in Willunga, Australia

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Willunga features a warm-summer Mediterranean climate (Csb). Temperatures typically range between 11 °C (52 °F) and 20 °C (69 °F) through the year, but rarely can drop to 3 °C (39 °F) or can rise to as high as 38 °C (100 °F). The average annual precipitation amounts to about 546 mm (21.5 inches) and receives 83 rainy days on the 1 mm (0.04 inches) threshold annually. Willunga enjoys an average of 3313 hours of sunshine throughout the year, and daylight varies from 9 hours 48 minutes to 14 hours 28 minutes per day.

Monthly average temperatures in Willunga, Australia

The warmest months in Willunga are January, February and March, with daily mean temperatures ranging from 19 to 20 °C (66 - 69 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 11 to 11 °C (52 - 53 °F) throughout the day. On average each year, Willunga experiences 51 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 Willunga. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum38°C
(100°F)		34°C
(93°F)		34°C
(93°F)		30°C
(87°F)		25°C
(76°F)		18°C
(65°F)		18°C
(65°F)		20°C
(68°F)		25°C
(77°F)		29°C
(84°F)		33°C
(92°F)		36°C
(97°F)
Mean maximum34°C
(94°F)		31°C
(87°F)		30°C
(86°F)		27°C
(80°F)		21°C
(70°F)		16°C
(62°F)		17°C
(62°F)		18°C
(65°F)		23°C
(73°F)		26°C
(78°F)		30°C
(86°F)		32°C
(89°F)
Average high25°C
(77°F)		23°C
(74°F)		23°C
(73°F)		20°C
(69°F)		16°C
(62°F)		14°C
(57°F)		13°C
(56°F)		13°C
(56°F)		15°C
(60°F)		18°C
(65°F)		20°C
(69°F)		23°C
(73°F)
Daily mean20°C
(69°F)		19°C
(67°F)		19°C
(66°F)		17°C
(62°F)		14°C
(57°F)		11°C
(53°F)		11°C
(52°F)		11°C
(52°F)		12°C
(55°F)		14°C
(58°F)		17°C
(62°F)		18°C
(65°F)
Average low16°C
(61°F)		16°C
(60°F)		15°C
(60°F)		14°C
(57°F)		11°C
(53°F)		9°C
(49°F)		9°C
(49°F)		9°C
(48°F)		9°C
(49°F)		11°C
(52°F)		13°C
(55°F)		14°C
(58°F)
Mean minimum13°C
(55°F)		12°C
(54°F)		11°C
(53°F)		10°C
(51°F)		8°C
(46°F)		6°C
(44°F)		6°C
(43°F)		5°C
(41°F)		6°C
(43°F)		7°C
(46°F)		8°C
(47°F)		10°C
(51°F)
Minimum12°C
(54°F)		12°C
(53°F)		10°C
(51°F)		9°C
(48°F)		6°C
(44°F)		4°C
(40°F)		5°C
(42°F)		3°C
(39°F)		5°C
(41°F)		7°C
(45°F)		8°C
(46°F)		9°C
(49°F)

Compare climate in Willunga with other places

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

Monthly average precipitation in Willunga, Australia

Willunga usually has the most precipitation in May, July and August, with an average of 11 rainy days and 82 mm (3.2 inches) of precipitation per month. The driest months in Willunga are January, March and December. On average, 17 mm (0.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Willunga. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)17 (0.7)22 (0.9)15 (0.6)34 (1.4)68 (2.7)63 (2.5)85 (3.3)94 (3.7)51 (2.0)40 (1.6)38 (1.5)18 (0.7)
Average precipitation days (≥ 1 mm)2345109121210763

Monthly sunshine hours in Willunga, Australia

The sunniest months in Willunga are October, November and December, when the sun shines an average of 10 hours 32 minutes a day. Least sunny months in Willunga: May, June and July receive an average of 7 hours 27 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Willunga. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours289289300251228221236247278301316350
Mean daily daylight hours14h 13m13h 21m12h 16m11h 9m10h 15m9h 48m10h 1m10h 49m11h 51m12h 58m13h 57m14h 28m

Solar UV radiation in Willunga, Australia

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

Average daily maximum UV levels by month for Willunga. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)141312853357101214