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Monthly climate in Palmerston, New Zealand

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Palmerston features a oceanic climate (Cfb). Temperatures typically range between 6 °C (43 °F) and 15 °C (59 °F) through the year, but rarely can drop to -1 °C (30 °F) or can rise to as high as 29 °C (84 °F). The average annual precipitation amounts to about 802 mm (31.6 inches) and receives 136 rainy days on the 1 mm (0.04 inches) threshold annually. Palmerston enjoys an average of 2897 hours of sunshine throughout the year, and daylight varies from 8 hours 44 minutes to 15 hours 35 minutes per day.

Monthly average temperatures in Palmerston, New Zealand

The warmest months in Palmerston are January, February and December, with daily mean temperatures ranging from 14 to 15 °C (58 - 59 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 6 to 7 °C (43 - 46 °F) throughout the day. On average each year, Palmerston experiences 1 days above 25 °C (77.0 °F) and 1 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Palmerston. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum28°C
(82°F)		29°C
(84°F)		26°C
(79°F)		24°C
(75°F)		18°C
(65°F)		19°C
(66°F)		15°C
(59°F)		17°C
(63°F)		19°C
(67°F)		21°C
(70°F)		24°C
(75°F)		24°C
(76°F)
Mean maximum24°C
(76°F)		25°C
(78°F)		23°C
(74°F)		20°C
(69°F)		17°C
(63°F)		15°C
(58°F)		14°C
(57°F)		16°C
(61°F)		18°C
(65°F)		19°C
(67°F)		22°C
(72°F)		23°C
(73°F)
Average high18°C
(65°F)		18°C
(65°F)		17°C
(63°F)		15°C
(59°F)		13°C
(55°F)		10°C
(50°F)		10°C
(50°F)		11°C
(52°F)		12°C
(55°F)		14°C
(57°F)		16°C
(61°F)		17°C
(63°F)
Daily mean15°C
(59°F)		15°C
(59°F)		14°C
(57°F)		11°C
(53°F)		9°C
(49°F)		7°C
(44°F)		6°C
(43°F)		7°C
(46°F)		9°C
(48°F)		10°C
(51°F)		12°C
(55°F)		14°C
(58°F)
Average low12°C
(54°F)		11°C
(53°F)		11°C
(52°F)		8°C
(47°F)		6°C
(43°F)		4°C
(40°F)		3°C
(38°F)		4°C
(40°F)		5°C
(42°F)		7°C
(45°F)		9°C
(49°F)		11°C
(52°F)
Mean minimum8°C
(46°F)		7°C
(45°F)		6°C
(43°F)		4°C
(40°F)		2°C
(35°F)		2°C
(36°F)		-0°C
(32°F)		0°C
(33°F)		2°C
(35°F)		3°C
(37°F)		5°C
(41°F)		7°C
(45°F)
Minimum7°C
(45°F)		5°C
(42°F)		5°C
(42°F)		2°C
(36°F)		-0°C
(32°F)		-0°C
(31°F)		-1°C
(30°F)		-1°C
(31°F)		1°C
(33°F)		2°C
(35°F)		3°C
(38°F)		6°C
(42°F)

Compare climate in Palmerston with other places

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

Monthly average precipitation in Palmerston, New Zealand

Palmerston usually has the most precipitation in February, November and December, with an average of 12 rainy days and 95 mm (3.7 inches) of precipitation per month. The driest months in Palmerston are May, June and August. On average, 38 mm (1.5 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Palmerston. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)88 (3.5)97 (3.8)50 (2.0)76 (3.0)40 (1.6)37 (1.5)65 (2.6)38 (1.5)48 (1.9)77 (3.0)90 (3.5)97 (3.8)
Average precipitation days (≥ 1 mm)1211101291191011141314

Monthly sunshine hours in Palmerston, New Zealand

The sunniest months in Palmerston are February, November and December, when the sun shines an average of 10 hours 7 minutes a day. Least sunny months in Palmerston: May, June and July receive an average of 5 hours 44 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Palmerston. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours259283262219190162175203246264302325
Mean daily daylight hours15h 12m13h 56m12h 21m10h 46m9h 25m8h 44m9h 5m10h 15m11h 46m13h 22m14h 49m15h 35m

Solar UV radiation in Palmerston, New Zealand

Palmerston experiences the highest level of ultraviolet (UV) radiation in January, February and December, when the maximum UV index can reach values of 11 - 13, which corresponds to the Extreme category of sun exposure. May, June and July are in the Low / Moderate exposure category. In these months, the maximum values of the UV index do not exceed 3. For more detailed information, check out our hourly Palmerston UV Index data.

Average daily maximum UV levels by month for Palmerston. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)1311853223581012