nomadseason

Monthly climate in Mannum, Australia

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Mannum features a cold semi-arid climate (BSk). Temperatures typically range between 10 °C (50 °F) and 22 °C (71 °F) through the year, but rarely can drop to -1 °C (30 °F) or can rise to as high as 45 °C (113 °F). The average annual precipitation amounts to about 295 mm (11.6 inches) and receives 59 rainy days on the 1 mm (0.04 inches) threshold annually. Mannum enjoys an average of 3363 hours of sunshine throughout the year, and daylight varies from 9 hours 48 minutes to 14 hours 27 minutes per day.

Monthly average temperatures in Mannum, Australia

The warmest months in Mannum are January, February and December, with daily mean temperatures ranging from 20 to 22 °C (68 - 71 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 10 to 10 °C (50 - 51 °F) throughout the day. On average each year, Mannum experiences 94 days above 25 °C (77.0 °F) and 1 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Mannum. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum45°C
(113°F)		39°C
(103°F)		39°C
(103°F)		37°C
(99°F)		26°C
(80°F)		21°C
(70°F)		23°C
(74°F)		24°C
(75°F)		31°C
(87°F)		37°C
(99°F)		43°C
(110°F)		45°C
(113°F)
Mean maximum42°C
(107°F)		38°C
(100°F)		35°C
(95°F)		32°C
(90°F)		24°C
(76°F)		18°C
(65°F)		21°C
(70°F)		23°C
(73°F)		29°C
(84°F)		33°C
(91°F)		38°C
(100°F)		39°C
(103°F)
Average high29°C
(85°F)		27°C
(80°F)		26°C
(79°F)		23°C
(73°F)		18°C
(64°F)		15°C
(59°F)		15°C
(59°F)		15°C
(59°F)		19°C
(66°F)		22°C
(72°F)		25°C
(76°F)		27°C
(81°F)
Daily mean22°C
(71°F)		20°C
(68°F)		19°C
(66°F)		16°C
(62°F)		12°C
(55°F)		10°C
(50°F)		10°C
(51°F)		10°C
(51°F)		13°C
(55°F)		15°C
(60°F)		18°C
(64°F)		20°C
(68°F)
Average low15°C
(59°F)		14°C
(58°F)		13°C
(56°F)		11°C
(52°F)		8°C
(47°F)		6°C
(43°F)		6°C
(44°F)		6°C
(43°F)		7°C
(45°F)		9°C
(49°F)		11°C
(53°F)		13°C
(55°F)
Mean minimum10°C
(51°F)		9°C
(48°F)		8°C
(46°F)		6°C
(43°F)		3°C
(38°F)		1°C
(35°F)		2°C
(36°F)		1°C
(34°F)		2°C
(36°F)		4°C
(39°F)		5°C
(42°F)		7°C
(45°F)
Minimum9°C
(48°F)		8°C
(47°F)		7°C
(44°F)		4°C
(39°F)		1°C
(34°F)		-1°C
(30°F)		0°C
(33°F)		-0°C
(32°F)		-1°C
(31°F)		3°C
(38°F)		5°C
(41°F)		7°C
(44°F)

Compare climate in Mannum with other places

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

Monthly average precipitation in Mannum, Australia

Mannum usually has the most precipitation in May, August and November, with an average of 7 rainy days and 35 mm (1.4 inches) of precipitation per month. The driest months in Mannum are January, March and December. On average, 13 mm (0.5 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Mannum. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)15 (0.6)19 (0.7)8 (0.3)21 (0.8)30 (1.2)28 (1.1)29 (1.1)44 (1.7)25 (1.0)28 (1.1)32 (1.3)15 (0.6)
Average precipitation days (≥ 1 mm)221376896573

Monthly sunshine hours in Mannum, Australia

The sunniest months in Mannum are March, November and December, when the sun shines an average of 10 hours 42 minutes a day. Least sunny months in Mannum: May, June and July receive an average of 7 hours 32 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Mannum. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours294300311257234222237249276305317356
Mean daily daylight hours14h 12m13h 21m12h 16m11h 10m10h 15m9h 48m10h 2m10h 49m11h 52m12h 58m13h 56m14h 27m

Solar UV radiation in Mannum, Australia

Mannum experiences the highest level of ultraviolet (UV) radiation in January, February 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 Mannum UV Index data.

Average daily maximum UV levels by month for Mannum. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)141312853458101215