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Monthly climate in Orewa, New Zealand

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Orewa features a oceanic climate (Cfb). Temperatures typically range between 12 °C (54 °F) and 21 °C (70 °F) through the year, but rarely can drop to 5 °C (41 °F) or can rise to as high as 28 °C (82 °F). The average annual precipitation amounts to about 1062 mm (41.8 inches) and receives 135 rainy days on the 1 mm (0.04 inches) threshold annually. Orewa enjoys an average of 3152 hours of sunshine throughout the year, and daylight varies from 9 hours 41 minutes to 14 hours 35 minutes per day.

Monthly average temperatures in Orewa, New Zealand

The warmest months in Orewa are January, February and March, with daily mean temperatures ranging from 20 to 21 °C (67 - 70 °F) throughout the day. The coldest temperatures usually occur in July, August and September, when daily mean temperatures range from 12 to 13 °C (54 - 56 °F) throughout the day. On average each year, Orewa experiences 9 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 Orewa. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum27°C
(80°F)		28°C
(82°F)		26°C
(78°F)		24°C
(75°F)		22°C
(71°F)		19°C
(67°F)		18°C
(65°F)		19°C
(66°F)		20°C
(69°F)		22°C
(72°F)		24°C
(76°F)		25°C
(78°F)
Mean maximum26°C
(79°F)		26°C
(79°F)		24°C
(76°F)		23°C
(74°F)		21°C
(70°F)		18°C
(65°F)		17°C
(64°F)		18°C
(64°F)		19°C
(66°F)		21°C
(69°F)		23°C
(73°F)		25°C
(77°F)
Average high23°C
(74°F)		23°C
(75°F)		22°C
(72°F)		20°C
(68°F)		18°C
(64°F)		16°C
(60°F)		15°C
(59°F)		15°C
(59°F)		16°C
(61°F)		17°C
(64°F)		20°C
(68°F)		22°C
(72°F)
Daily mean20°C
(69°F)		21°C
(70°F)		20°C
(67°F)		17°C
(64°F)		15°C
(60°F)		13°C
(56°F)		12°C
(54°F)		13°C
(55°F)		13°C
(56°F)		15°C
(59°F)		17°C
(63°F)		19°C
(67°F)
Average low18°C
(64°F)		18°C
(65°F)		17°C
(63°F)		15°C
(59°F)		13°C
(56°F)		11°C
(53°F)		10°C
(50°F)		11°C
(51°F)		11°C
(52°F)		13°C
(55°F)		14°C
(58°F)		17°C
(62°F)
Mean minimum14°C
(58°F)		15°C
(59°F)		14°C
(58°F)		11°C
(53°F)		8°C
(47°F)		9°C
(48°F)		6°C
(43°F)		7°C
(45°F)		8°C
(47°F)		9°C
(48°F)		11°C
(53°F)		13°C
(56°F)
Minimum12°C
(54°F)		14°C
(57°F)		13°C
(55°F)		10°C
(51°F)		6°C
(44°F)		6°C
(42°F)		5°C
(41°F)		6°C
(43°F)		6°C
(43°F)		7°C
(46°F)		10°C
(51°F)		12°C
(54°F)

Compare climate in Orewa with other places

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

Monthly average precipitation in Orewa, New Zealand

Orewa usually has the most precipitation in June, August and September, with an average of 13 rainy days and 109 mm (4.3 inches) of precipitation per month. The driest months in Orewa are January, May and December. On average, 66 mm (2.6 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Orewa. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)54 (2.1)80 (3.1)92 (3.6)102 (4.0)77 (3.0)111 (4.4)99 (3.9)103 (4.1)112 (4.4)86 (3.4)78 (3.1)68 (2.7)
Average precipitation days (≥ 1 mm)6912111111131414121111

Monthly sunshine hours in Orewa, New Zealand

The sunniest months in Orewa are March, November and December, when the sun shines an average of 10 hours 15 minutes a day. Least sunny months in Orewa: May, June and July receive an average of 6 hours 47 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Orewa. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours284282288235218188218233260287308346
Mean daily daylight hours14h 19m13h 25m12h 17m11h 7m10h 9m9h 41m9h 55m10h 45m11h 51m13h 0m14h 3m14h 35m

Solar UV radiation in Orewa, New Zealand

Orewa 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 Orewa UV Index data.

Average daily maximum UV levels by month for Orewa. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)141410753357101213