nomadseason

Monthly climate in Glenbrook, Australia

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Glenbrook features a humid subtropical climate (Cfa). Temperatures typically range between 9 °C (49 °F) and 22 °C (72 °F) through the year, but rarely can drop to -2 °C (29 °F) or can rise to as high as 41 °C (106 °F). The average annual precipitation amounts to about 1007 mm (39.7 inches) and receives 122 rainy days on the 1 mm (0.04 inches) threshold annually. Glenbrook enjoys an average of 3273 hours of sunshine throughout the year, and daylight varies from 9 hours 55 minutes to 14 hours 20 minutes per day.

Monthly average temperatures in Glenbrook, Australia

The warmest months in Glenbrook are January, February and December, with daily mean temperatures ranging from 20 to 22 °C (68 - 72 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 9 to 10 °C (49 - 50 °F) throughout the day. On average each year, Glenbrook experiences 83 days above 25 °C (77.0 °F) and 2 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Glenbrook. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum41°C
(106°F)		40°C
(104°F)		35°C
(96°F)		31°C
(89°F)		24°C
(76°F)		22°C
(72°F)		23°C
(73°F)		23°C
(74°F)		31°C
(89°F)		32°C
(90°F)		37°C
(99°F)		39°C
(103°F)
Mean maximum36°C
(97°F)		35°C
(95°F)		32°C
(90°F)		28°C
(82°F)		23°C
(74°F)		18°C
(64°F)		21°C
(70°F)		22°C
(72°F)		27°C
(81°F)		30°C
(86°F)		31°C
(88°F)		36°C
(97°F)
Average high28°C
(82°F)		26°C
(79°F)		23°C
(75°F)		22°C
(71°F)		18°C
(65°F)		15°C
(59°F)		15°C
(60°F)		16°C
(61°F)		19°C
(67°F)		22°C
(72°F)		24°C
(75°F)		26°C
(79°F)
Daily mean22°C
(72°F)		20°C
(69°F)		19°C
(66°F)		16°C
(61°F)		12°C
(54°F)		10°C
(49°F)		9°C
(49°F)		10°C
(50°F)		13°C
(55°F)		16°C
(60°F)		18°C
(64°F)		20°C
(68°F)
Average low17°C
(63°F)		16°C
(61°F)		15°C
(59°F)		11°C
(52°F)		7°C
(45°F)		5°C
(42°F)		4°C
(40°F)		5°C
(40°F)		7°C
(45°F)		10°C
(51°F)		12°C
(54°F)		15°C
(59°F)
Mean minimum12°C
(54°F)		11°C
(52°F)		9°C
(49°F)		5°C
(42°F)		2°C
(36°F)		2°C
(35°F)		-1°C
(31°F)		-0°C
(32°F)		2°C
(35°F)		5°C
(41°F)		7°C
(44°F)		10°C
(51°F)
Minimum9°C
(49°F)		9°C
(48°F)		6°C
(43°F)		3°C
(38°F)		-0°C
(32°F)		0°C
(33°F)		-2°C
(29°F)		-1°C
(30°F)		1°C
(33°F)		4°C
(39°F)		6°C
(43°F)		10°C
(49°F)

Compare climate in Glenbrook with other places

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

Monthly average precipitation in Glenbrook, Australia

Glenbrook usually has the most precipitation in February, March and November, with an average of 15 rainy days and 168 mm (6.6 inches) of precipitation per month. The driest months in Glenbrook are April, June and July. On average, 30 mm (1.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Glenbrook. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)79 (3.1)160 (6.3)221 (8.7)28 (1.1)38 (1.5)31 (1.2)32 (1.2)44 (1.7)43 (1.7)86 (3.4)124 (4.9)122 (4.8)
Average precipitation days (≥ 1 mm)141518756466131216

Monthly sunshine hours in Glenbrook, Australia

The sunniest months in Glenbrook are October, November and December, when the sun shines an average of 10 hours 8 minutes a day. Least sunny months in Glenbrook: May, June and July receive an average of 7 hours 42 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Glenbrook. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours258280269266247217245271284297309326
Mean daily daylight hours14h 6m13h 17m12h 15m11h 13m10h 21m9h 55m10h 8m10h 53m11h 52m12h 55m13h 51m14h 20m

Solar UV radiation in Glenbrook, Australia

Glenbrook experiences the highest level of ultraviolet (UV) radiation in January, February and December, when the maximum UV index can reach values of 14 - 15, which corresponds to the Extreme category of sun exposure. May, June and July are in the Moderate / High exposure category. In these months, the maximum values of the UV index do not exceed 6. For more detailed information, check out our hourly Glenbrook UV Index data.

Average daily maximum UV levels by month for Glenbrook. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)151412864468111215