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Monthly climate in Casterton, Victoria, Australia

Last updated: March 2, 2024

Under the Köppen–Geiger climate classification Casterton 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 (29 °F) or can rise to as high as 45 °C (113 °F). The average annual precipitation amounts to about 587 mm (23.1 inches) and receives 103 rainy days on the 1 mm (0.04 inches) threshold annually. Casterton 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 Casterton, Victoria, Australia §

The warmest months in Casterton are January, February and March, with daily mean temperatures ranging from 18 to 20 °C (64 - 68 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 8 to 9 °C (47 - 48 °F) throughout the day. On average each year, Casterton experiences 69 days above 25 °C (77.0 °F) and 3 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Casterton, Victoria, Australia. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 42°C
(108°F)		 39°C
(102°F)		 39°C
(102°F)		 33°C
(92°F)		 24°C
(75°F)		 18°C
(65°F)		 18°C
(64°F)		 20°C
(69°F)		 27°C
(81°F)		 33°C
(91°F)		 35°C
(95°F)		 45°C
(113°F)
Mean maximum 40°C
(104°F)		 36°C
(98°F)		 34°C
(93°F)		 30°C
(86°F)		 21°C
(71°F)		 15°C
(60°F)		 16°C
(62°F)		 18°C
(64°F)		 23°C
(74°F)		 28°C
(83°F)		 32°C
(90°F)		 37°C
(99°F)
Average high 27°C
(82°F)		 25°C
(78°F)		 24°C
(76°F)		 20°C
(68°F)		 15°C
(60°F)		 13°C
(55°F)		 12°C
(54°F)		 13°C
(55°F)		 15°C
(60°F)		 18°C
(64°F)		 21°C
(71°F)		 24°C
(76°F)
Daily mean 20°C
(68°F)		 18°C
(65°F)		 18°C
(64°F)		 14°C
(58°F)		 11°C
(52°F)		 9°C
(48°F)		 8°C
(47°F)		 9°C
(48°F)		 10°C
(51°F)		 12°C
(55°F)		 15°C
(60°F)		 17°C
(63°F)
Average low 13°C
(55°F)		 12°C
(55°F)		 12°C
(54°F)		 9°C
(49°F)		 7°C
(46°F)		 5°C
(42°F)		 5°C
(42°F)		 5°C
(41°F)		 6°C
(42°F)		 7°C
(45°F)		 9°C
(49°F)		 10°C
(51°F)
Mean minimum 7°C
(45°F)		 6°C
(43°F)		 6°C
(43°F)		 4°C
(39°F)		 2°C
(36°F)		 1°C
(33°F)		 0°C
(33°F)		 -0°C
(32°F)		 0°C
(33°F)		 2°C
(35°F)		 2°C
(37°F)		 5°C
(41°F)
Minimum 5°C
(42°F)		 4°C
(39°F)		 4°C
(39°F)		 3°C
(37°F)		 -0°C
(32°F)		 -1°C
(30°F)		 -2°C
(29°F)		 -1°C
(30°F)		 -2°C
(29°F)		 1°C
(34°F)		 1°C
(34°F)		 3°C
(38°F)

Compare climate in Casterton with other places

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

Monthly average precipitation in Casterton, Victoria, Australia §

Casterton usually has the most precipitation in May, July and August, with an average of 12 rainy days and 71 mm (2.8 inches) of precipitation per month. The driest months in Casterton are January, February and March. On average, 24 mm (0.9 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Casterton, Victoria, Australia. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 26 (1.0) 23 (0.9) 23 (0.9) 37 (1.5) 67 (2.7) 44 (1.7) 73 (2.9) 73 (2.9) 66 (2.6) 63 (2.5) 57 (2.3) 35 (1.4)
Average precipitation days (≥ 1 mm) 2 4 5 7 11 9 13 14 13 11 8 6

Monthly sunshine hours in Casterton, Victoria, Australia §

The sunniest months in Casterton are February, November and December, when the sun shines an average of 10 hours 9 minutes a day. Least sunny months in Casterton: 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 Casterton, Victoria, Australia. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 282 284 281 219 202 194 209 230 247 262 293 335
Mean daily daylight hours 14h 24m 13h 28m 12h 17m 11h 5m 10h 5m 9h 35m 9h 50m 10h 42m 11h 50m 13h 3m 14h 7m 14h 41m

Solar UV radiation in Casterton, Victoria, Australia §

Casterton 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 Casterton UV Index data.

Average daily maximum UV levels by month for Casterton, Victoria, Australia. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 14 12 11 7 4 3 3 5 7 9 12 14

Detailed Monthly Weather Insights for Casterton, Victoria, Australia

Discover in-depth weather details for every month in Casterton. Click through the links below for comprehensive overviews of temperature trends, precipitation levels, sunshine hours, and solar UV radiation specifics. Whether planning a visit or simply curious about Casterton's climate nuances, these monthly breakdowns provide the information you need for an informed understanding of what to expect throughout the year.

Each link leads to a detailed account of the typical weather conditions for that month, providing both locals and tourists with vital information to plan their daily activities, wardrobe, and travel itineraries accordingly.