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Monthly climate in Shellharbour, Australia

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Shellharbour features a oceanic climate (Cfb). Temperatures typically range between 11 °C (52 °F) and 21 °C (71 °F) through the year, but rarely can drop to 3 °C (37 °F) or can rise to as high as 37 °C (100 °F). The average annual precipitation amounts to about 1091 mm (42.9 inches) and receives 135 rainy days on the 1 mm (0.04 inches) threshold annually. Shellharbour enjoys an average of 3288 hours of sunshine throughout the year, and daylight varies from 9 hours 51 minutes to 14 hours 24 minutes per day.

Monthly average temperatures in Shellharbour, Australia

The warmest months in Shellharbour are January, February and December, with daily mean temperatures ranging from 19 to 21 °C (67 - 71 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 11 to 11 °C (52 - 53 °F) throughout the day. On average each year, Shellharbour experiences 47 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 Shellharbour. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum37°C
(100°F)		36°C
(97°F)		35°C
(95°F)		30°C
(87°F)		23°C
(75°F)		20°C
(67°F)		22°C
(72°F)		22°C
(72°F)		29°C
(84°F)		30°C
(86°F)		35°C
(96°F)		34°C
(93°F)
Mean maximum33°C
(91°F)		32°C
(90°F)		30°C
(86°F)		26°C
(79°F)		23°C
(73°F)		17°C
(63°F)		21°C
(69°F)		21°C
(70°F)		26°C
(78°F)		27°C
(81°F)		29°C
(85°F)		31°C
(89°F)
Average high25°C
(78°F)		24°C
(75°F)		22°C
(73°F)		21°C
(70°F)		18°C
(64°F)		15°C
(59°F)		15°C
(59°F)		15°C
(60°F)		18°C
(65°F)		20°C
(68°F)		21°C
(70°F)		23°C
(74°F)
Daily mean21°C
(71°F)		20°C
(69°F)		19°C
(67°F)		17°C
(62°F)		14°C
(57°F)		11°C
(53°F)		11°C
(52°F)		11°C
(52°F)		13°C
(57°F)		16°C
(61°F)		17°C
(63°F)		19°C
(67°F)
Average low18°C
(65°F)		17°C
(64°F)		16°C
(62°F)		14°C
(57°F)		11°C
(51°F)		9°C
(48°F)		8°C
(46°F)		8°C
(46°F)		9°C
(49°F)		12°C
(54°F)		14°C
(57°F)		16°C
(61°F)
Mean minimum14°C
(58°F)		14°C
(57°F)		12°C
(54°F)		10°C
(50°F)		7°C
(44°F)		5°C
(42°F)		4°C
(40°F)		4°C
(40°F)		6°C
(42°F)		8°C
(46°F)		9°C
(49°F)		12°C
(55°F)
Minimum11°C
(53°F)		13°C
(55°F)		10°C
(51°F)		8°C
(47°F)		6°C
(43°F)		3°C
(37°F)		3°C
(38°F)		3°C
(38°F)		5°C
(41°F)		7°C
(44°F)		9°C
(48°F)		11°C
(53°F)

Compare climate in Shellharbour with other places

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

Monthly average precipitation in Shellharbour, Australia

Shellharbour usually has the most precipitation in February, March and November, with an average of 15 rainy days and 161 mm (6.3 inches) of precipitation per month. The driest months in Shellharbour are April, July and September. On average, 45 mm (1.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Shellharbour. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)67 (2.6)145 (5.7)207 (8.1)42 (1.7)65 (2.5)63 (2.5)44 (1.7)66 (2.6)48 (1.9)108 (4.2)129 (5.1)107 (4.2)
Average precipitation days (≥ 1 mm)1116188812577151315

Monthly sunshine hours in Shellharbour, Australia

The sunniest months in Shellharbour are October, November and December, when the sun shines an average of 10 hours 12 minutes a day. Least sunny months in Shellharbour: May, June and July receive an average of 7 hours 47 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Shellharbour. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours259278271269247221246267287301309327
Mean daily daylight hours14h 9m13h 19m12h 15m11h 11m10h 18m9h 51m10h 4m10h 51m11h 52m12h 57m13h 54m14h 24m

Solar UV radiation in Shellharbour, Australia

Shellharbour experiences the highest level of ultraviolet (UV) radiation in January, February and December, when the maximum UV index can reach values of 13 - 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 5. For more detailed information, check out our hourly Shellharbour UV Index data.

Average daily maximum UV levels by month for Shellharbour. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)141312853458101214