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Monthly climate in Greerton, New Zealand

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Greerton features a oceanic climate (Cfb). Temperatures typically range between 11 °C (51 °F) and 20 °C (68 °F) through the year, but rarely can drop to 2 °C (36 °F) or can rise to as high as 31 °C (88 °F). The average annual precipitation amounts to about 1322 mm (52.1 inches) and receives 134 rainy days on the 1 mm (0.04 inches) threshold annually. Greerton enjoys an average of 3107 hours of sunshine throughout the year, and daylight varies from 9 hours 34 minutes to 14 hours 43 minutes per day.

Monthly average temperatures in Greerton, New Zealand

The warmest months in Greerton are January, February and December, with daily mean temperatures ranging from 19 to 20 °C (66 - 68 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 11 to 12 °C (51 - 54 °F) throughout the day. On average each year, Greerton experiences 15 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 Greerton. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum29°C
(84°F)		31°C
(88°F)		26°C
(80°F)		24°C
(76°F)		20°C
(69°F)		19°C
(66°F)		17°C
(62°F)		17°C
(63°F)		19°C
(66°F)		22°C
(72°F)		26°C
(79°F)		28°C
(82°F)
Mean maximum27°C
(82°F)		27°C
(81°F)		25°C
(76°F)		23°C
(73°F)		20°C
(67°F)		17°C
(63°F)		16°C
(61°F)		16°C
(62°F)		18°C
(65°F)		21°C
(69°F)		23°C
(74°F)		25°C
(78°F)
Average high24°C
(75°F)		23°C
(74°F)		22°C
(71°F)		19°C
(67°F)		17°C
(62°F)		15°C
(58°F)		14°C
(57°F)		14°C
(58°F)		15°C
(60°F)		17°C
(63°F)		20°C
(68°F)		22°C
(71°F)
Daily mean20°C
(68°F)		20°C
(68°F)		18°C
(65°F)		16°C
(61°F)		14°C
(57°F)		12°C
(54°F)		11°C
(51°F)		11°C
(52°F)		12°C
(54°F)		14°C
(57°F)		16°C
(62°F)		19°C
(66°F)
Average low16°C
(61°F)		17°C
(62°F)		15°C
(60°F)		13°C
(55°F)		11°C
(51°F)		9°C
(49°F)		8°C
(46°F)		8°C
(47°F)		9°C
(49°F)		11°C
(52°F)		13°C
(56°F)		15°C
(60°F)
Mean minimum12°C
(54°F)		12°C
(54°F)		12°C
(53°F)		9°C
(48°F)		6°C
(43°F)		7°C
(45°F)		4°C
(39°F)		4°C
(39°F)		6°C
(43°F)		6°C
(43°F)		9°C
(49°F)		11°C
(52°F)
Minimum11°C
(51°F)		11°C
(53°F)		10°C
(50°F)		7°C
(45°F)		4°C
(39°F)		4°C
(40°F)		2°C
(36°F)		3°C
(37°F)		5°C
(41°F)		5°C
(41°F)		8°C
(46°F)		9°C
(48°F)

Compare climate in Greerton with other places

Compare temperature, precipitation, sunshine, UV index in Greerton, New Zealand with other places around the world.

Monthly average precipitation in Greerton, New Zealand

Greerton usually has the most precipitation in April, June and July, with an average of 10 rainy days and 136 mm (5.3 inches) of precipitation per month. The driest months in Greerton are January, May and November. On average, 83 mm (3.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Greerton. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)66 (2.6)101 (4.0)113 (4.4)148 (5.8)93 (3.7)135 (5.3)125 (4.9)123 (4.9)108 (4.2)110 (4.3)90 (3.6)111 (4.4)
Average precipitation days (≥ 1 mm)7812101011111412131214

Monthly sunshine hours in Greerton, New Zealand

The sunniest months in Greerton are January, November and December, when the sun shines an average of 10 hours 9 minutes a day. Least sunny months in Greerton: 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 Greerton. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours286282281239217183205229250282305341
Mean daily daylight hours14h 26m13h 29m12h 17m11h 4m10h 4m9h 34m9h 49m10h 41m11h 50m13h 3m14h 8m14h 43m

Solar UV radiation in Greerton, New Zealand

Greerton 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 4. For more detailed information, check out our hourly Greerton UV Index data.

Average daily maximum UV levels by month for Greerton. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)14131074335791113