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Monthly climate in Alton Downs, Australia

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Alton Downs features a humid subtropical climate (Cfa). Temperatures typically range between 17 °C (63 °F) and 28 °C (82 °F) through the year, but rarely can drop to 2 °C (36 °F) or can rise to as high as 42 °C (109 °F). The average annual precipitation amounts to about 593 mm (23.3 inches) and receives 56 rainy days on the 1 mm (0.04 inches) threshold annually. Alton Downs enjoys an average of 3437 hours of sunshine throughout the year, and daylight varies from 10 hours 42 minutes to 13 hours 31 minutes per day.

Monthly average temperatures in Alton Downs, Australia

The warmest months in Alton Downs are January, February and December, with daily mean temperatures ranging from 27 to 28 °C (81 - 82 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 17 to 18 °C (63 - 65 °F) throughout the day. On average each year, Alton Downs experiences 278 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 Alton Downs. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum40°C
(105°F)		41°C
(107°F)		41°C
(105°F)		35°C
(95°F)		32°C
(90°F)		28°C
(83°F)		29°C
(85°F)		32°C
(89°F)		37°C
(98°F)		40°C
(104°F)		42°C
(109°F)		40°C
(105°F)
Mean maximum37°C
(99°F)		40°C
(104°F)		37°C
(99°F)		33°C
(92°F)		30°C
(86°F)		26°C
(80°F)		28°C
(82°F)		31°C
(88°F)		33°C
(93°F)		37°C
(98°F)		38°C
(100°F)		38°C
(101°F)
Average high33°C
(91°F)		34°C
(93°F)		32°C
(89°F)		29°C
(85°F)		26°C
(80°F)		24°C
(76°F)		24°C
(76°F)		26°C
(79°F)		28°C
(84°F)		31°C
(88°F)		32°C
(90°F)		33°C
(91°F)
Daily mean28°C
(82°F)		28°C
(82°F)		27°C
(80°F)		24°C
(75°F)		20°C
(69°F)		17°C
(64°F)		17°C
(63°F)		18°C
(65°F)		21°C
(70°F)		24°C
(76°F)		26°C
(79°F)		27°C
(81°F)
Average low23°C
(74°F)		23°C
(74°F)		22°C
(72°F)		19°C
(66°F)		15°C
(60°F)		12°C
(53°F)		11°C
(52°F)		11°C
(51°F)		14°C
(57°F)		19°C
(66°F)		20°C
(69°F)		22°C
(72°F)
Mean minimum20°C
(68°F)		20°C
(68°F)		18°C
(65°F)		14°C
(57°F)		9°C
(48°F)		5°C
(42°F)		3°C
(38°F)		5°C
(41°F)		10°C
(50°F)		13°C
(55°F)		16°C
(61°F)		18°C
(66°F)
Minimum19°C
(66°F)		18°C
(65°F)		17°C
(63°F)		9°C
(49°F)		5°C
(42°F)		3°C
(38°F)		2°C
(36°F)		3°C
(37°F)		9°C
(48°F)		11°C
(53°F)		14°C
(58°F)		17°C
(64°F)

Compare climate in Alton Downs with other places

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

Monthly average precipitation in Alton Downs, Australia

Alton Downs usually has the most precipitation in February, March and December, with an average of 9 rainy days and 93 mm (3.7 inches) of precipitation per month. The driest months in Alton Downs are June, August and September. On average, 11 mm (0.4 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Alton Downs. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)47 (1.9)81 (3.2)116 (4.6)49 (1.9)31 (1.2)16 (0.6)35 (1.4)9 (0.4)8 (0.3)58 (2.3)60 (2.4)82 (3.2)
Average precipitation days (≥ 1 mm)6812323211657

Monthly sunshine hours in Alton Downs, Australia

The sunniest months in Alton Downs are October, November and December, when the sun shines an average of 10 hours 24 minutes a day. Least sunny months in Alton Downs: January, June and July receive an average of 8 hours 27 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Alton Downs. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours261283278276268248268294299311319326
Mean daily daylight hours13h 22m12h 51m12h 11m11h 31m10h 58m10h 42m10h 50m11h 19m11h 57m12h 37m13h 13m13h 31m

Solar UV radiation in Alton Downs, Australia

Alton Downs experiences the highest level of ultraviolet (UV) radiation in January, November and December, when the maximum UV index can reach values of 15 - 15, which corresponds to the Extreme category of sun exposure. May, June and July are in the High / Very High exposure category. In these months, the maximum values of the UV index do not exceed 8. For more detailed information, check out our hourly Alton Downs UV Index data.

Average daily maximum UV levels by month for Alton Downs. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)151514118671011131515