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Monthly climate in Seymour, Australia

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Seymour features a oceanic climate (Cfb). Temperatures typically range between 7 °C (45 °F) and 22 °C (71 °F) through the year, but rarely can drop to -4 °C (25 °F) or can rise to as high as 43 °C (109 °F). The average annual precipitation amounts to about 646 mm (25.4 inches) and receives 87 rainy days on the 1 mm (0.04 inches) threshold annually. Seymour enjoys an average of 3228 hours of sunshine throughout the year, and daylight varies from 9 hours 38 minutes to 14 hours 38 minutes per day.

Monthly average temperatures in Seymour, Australia

The warmest months in Seymour are January, February and December, with daily mean temperatures ranging from 19 to 22 °C (66 - 71 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 7 to 8 °C (45 - 46 °F) throughout the day. On average each year, Seymour experiences 88 days above 25 °C (77.0 °F) and 8 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Seymour. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum43°C
(109°F)		42°C
(108°F)		36°C
(96°F)		31°C
(89°F)		24°C
(75°F)		17°C
(62°F)		17°C
(62°F)		20°C
(68°F)		27°C
(82°F)		32°C
(89°F)		39°C
(102°F)		42°C
(108°F)
Mean maximum38°C
(101°F)		36°C
(96°F)		32°C
(90°F)		27°C
(81°F)		21°C
(70°F)		14°C
(58°F)		15°C
(60°F)		17°C
(63°F)		23°C
(74°F)		27°C
(81°F)		33°C
(92°F)		37°C
(99°F)
Average high29°C
(85°F)		27°C
(80°F)		25°C
(77°F)		20°C
(69°F)		15°C
(59°F)		12°C
(54°F)		11°C
(53°F)		12°C
(54°F)		15°C
(60°F)		19°C
(67°F)		23°C
(73°F)		26°C
(79°F)
Daily mean22°C
(71°F)		20°C
(68°F)		18°C
(65°F)		14°C
(58°F)		10°C
(51°F)		8°C
(46°F)		7°C
(45°F)		8°C
(46°F)		10°C
(50°F)		13°C
(56°F)		16°C
(62°F)		19°C
(66°F)
Average low15°C
(58°F)		13°C
(56°F)		12°C
(55°F)		9°C
(49°F)		6°C
(43°F)		4°C
(39°F)		4°C
(39°F)		4°C
(39°F)		5°C
(41°F)		7°C
(46°F)		10°C
(50°F)		12°C
(53°F)
Mean minimum9°C
(48°F)		7°C
(45°F)		6°C
(44°F)		4°C
(39°F)		1°C
(34°F)		-1°C
(31°F)		-1°C
(30°F)		-1°C
(30°F)		-1°C
(31°F)		2°C
(36°F)		3°C
(38°F)		7°C
(44°F)
Minimum8°C
(47°F)		5°C
(41°F)		5°C
(41°F)		2°C
(36°F)		-1°C
(30°F)		-2°C
(28°F)		-4°C
(26°F)		-4°C
(25°F)		-2°C
(28°F)		1°C
(33°F)		2°C
(35°F)		6°C
(43°F)

Compare climate in Seymour with other places

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

Monthly average precipitation in Seymour, Australia

Seymour usually has the most precipitation in August, October and December, with an average of 9 rainy days and 65 mm (2.6 inches) of precipitation per month. The driest months in Seymour are January, February and March. On average, 40 mm (1.6 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Seymour. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)35 (1.4)44 (1.7)41 (1.6)51 (2.0)60 (2.3)56 (2.2)59 (2.3)64 (2.5)53 (2.1)69 (2.7)51 (2.0)63 (2.5)
Average precipitation days (≥ 1 mm)43558811119977

Monthly sunshine hours in Seymour, Australia

The sunniest months in Seymour are February, November and December, when the sun shines an average of 10 hours 45 minutes a day. Least sunny months in Seymour: May, June and July receive an average of 6 hours 49 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Seymour. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours290304304250220199208229260297307355
Mean daily daylight hours14h 21m13h 26m12h 17m11h 6m10h 7m9h 38m9h 53m10h 44m11h 51m13h 2m14h 5m14h 38m

Solar UV radiation in Seymour, Australia

Seymour 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 Seymour UV Index data.

Average daily maximum UV levels by month for Seymour. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)14121174335791214