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Monthly climate in Killarney, Australia

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Killarney features a humid subtropical climate (Cfa). Temperatures typically range between 11 °C (52 °F) and 23 °C (74 °F) through the year, but rarely can drop to -3 °C (26 °F) or can rise to as high as 40 °C (105 °F). The average annual precipitation amounts to about 645 mm (25.4 inches) and receives 81 rainy days on the 1 mm (0.04 inches) threshold annually. Killarney enjoys an average of 3331 hours of sunshine throughout the year, and daylight varies from 10 hours 21 minutes to 13 hours 53 minutes per day.

Monthly average temperatures in Killarney, Australia

The warmest months in Killarney are January, February and December, with daily mean temperatures ranging from 22 to 23 °C (72 - 74 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 11 to 12 °C (52 - 53 °F) throughout the day. On average each year, Killarney experiences 134 days above 25 °C (77.0 °F) and 6 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Killarney. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum37°C
(99°F)		40°C
(105°F)		33°C
(92°F)		29°C
(85°F)		26°C
(80°F)		23°C
(73°F)		24°C
(75°F)		28°C
(82°F)		33°C
(91°F)		34°C
(94°F)		36°C
(98°F)		38°C
(101°F)
Mean maximum34°C
(94°F)		36°C
(96°F)		32°C
(90°F)		27°C
(82°F)		25°C
(77°F)		21°C
(70°F)		22°C
(73°F)		25°C
(78°F)		29°C
(85°F)		31°C
(88°F)		33°C
(91°F)		36°C
(96°F)
Average high29°C
(85°F)		28°C
(83°F)		26°C
(79°F)		23°C
(74°F)		20°C
(68°F)		18°C
(64°F)		18°C
(65°F)		20°C
(68°F)		23°C
(74°F)		25°C
(77°F)		27°C
(80°F)		29°C
(84°F)
Daily mean23°C
(74°F)		22°C
(72°F)		21°C
(69°F)		17°C
(63°F)		14°C
(57°F)		11°C
(52°F)		11°C
(52°F)		12°C
(53°F)		15°C
(60°F)		18°C
(65°F)		20°C
(68°F)		22°C
(72°F)
Average low18°C
(64°F)		17°C
(63°F)		16°C
(61°F)		12°C
(54°F)		9°C
(49°F)		6°C
(43°F)		5°C
(41°F)		5°C
(41°F)		8°C
(46°F)		12°C
(54°F)		13°C
(56°F)		16°C
(62°F)
Mean minimum13°C
(56°F)		13°C
(56°F)		12°C
(53°F)		7°C
(45°F)		2°C
(36°F)		1°C
(34°F)		-2°C
(28°F)		-1°C
(30°F)		2°C
(35°F)		6°C
(44°F)		8°C
(46°F)		11°C
(52°F)
Minimum11°C
(52°F)		11°C
(52°F)		10°C
(51°F)		2°C
(37°F)		-1°C
(31°F)		-2°C
(29°F)		-3°C
(26°F)		-3°C
(27°F)		-1°C
(31°F)		4°C
(39°F)		6°C
(44°F)		9°C
(49°F)

Compare climate in Killarney with other places

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

Monthly average precipitation in Killarney, Australia

Killarney usually has the most precipitation in March, October and December, with an average of 12 rainy days and 107 mm (4.2 inches) of precipitation per month. The driest months in Killarney are May, August and September. On average, 16 mm (0.6 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Killarney. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)59 (2.3)79 (3.1)114 (4.5)20 (0.8)20 (0.8)28 (1.1)29 (1.2)17 (0.7)12 (0.5)108 (4.3)61 (2.4)98 (3.8)
Average precipitation days (≥ 1 mm)7101433442313711

Monthly sunshine hours in Killarney, Australia

The sunniest months in Killarney are September, November and December, when the sun shines an average of 10 hours 12 minutes a day. Least sunny months in Killarney: May, June and July receive an average of 8 hours 7 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Killarney. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours267274267268251238256289292287311325
Mean daily daylight hours13h 42m13h 3m12h 13m11h 23m10h 41m10h 21m10h 31m11h 7m11h 54m12h 45m13h 30m13h 53m

Solar UV radiation in Killarney, Australia

Killarney experiences the highest level of ultraviolet (UV) radiation in January, February and December, when the maximum UV index can reach values of 15 - 16, 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 7. For more detailed information, check out our hourly Killarney UV Index data.

Average daily maximum UV levels by month for Killarney. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)1615141075589121415