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Monthly climate in Castlepoint, New Zealand

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Castlepoint features a oceanic climate (Cfb). Temperatures typically range between 11 °C (52 °F) and 18 °C (65 °F) through the year, but rarely can drop to 6 °C (43 °F) or can rise to as high as 26 °C (80 °F). The average annual precipitation amounts to about 966 mm (38.1 inches) and receives 127 rainy days on the 1 mm (0.04 inches) threshold annually. Castlepoint enjoys an average of 2989 hours of sunshine throughout the year, and daylight varies from 9 hours 15 minutes to 15 hours 2 minutes per day.

Monthly average temperatures in Castlepoint, New Zealand

The warmest months in Castlepoint are January, February and March, with daily mean temperatures ranging from 17 to 18 °C (63 - 65 °F) throughout the day. The coldest temperatures usually occur in July, August and September, when daily mean temperatures range from 11 to 11 °C (52 - 53 °F) throughout the day. On average each year, Castlepoint experiences 0 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 Castlepoint. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum24°C
(76°F)		26°C
(80°F)		23°C
(73°F)		22°C
(71°F)		19°C
(67°F)		17°C
(63°F)		15°C
(60°F)		15°C
(60°F)		17°C
(63°F)		19°C
(67°F)		21°C
(69°F)		23°C
(73°F)
Mean maximum23°C
(74°F)		24°C
(75°F)		22°C
(71°F)		20°C
(68°F)		18°C
(65°F)		16°C
(60°F)		15°C
(59°F)		15°C
(58°F)		16°C
(61°F)		17°C
(64°F)		20°C
(68°F)		22°C
(71°F)
Average high19°C
(67°F)		20°C
(68°F)		18°C
(65°F)		17°C
(62°F)		15°C
(59°F)		13°C
(56°F)		12°C
(54°F)		12°C
(55°F)		13°C
(56°F)		14°C
(58°F)		16°C
(61°F)		18°C
(64°F)
Daily mean18°C
(64°F)		18°C
(65°F)		17°C
(63°F)		15°C
(59°F)		14°C
(57°F)		12°C
(54°F)		11°C
(52°F)		11°C
(52°F)		11°C
(53°F)		13°C
(55°F)		14°C
(58°F)		16°C
(62°F)
Average low16°C
(61°F)		16°C
(62°F)		16°C
(60°F)		14°C
(57°F)		12°C
(54°F)		11°C
(52°F)		9°C
(49°F)		10°C
(49°F)		10°C
(50°F)		11°C
(52°F)		13°C
(56°F)		15°C
(59°F)
Mean minimum13°C
(56°F)		13°C
(56°F)		13°C
(55°F)		10°C
(50°F)		8°C
(48°F)		8°C
(47°F)		6°C
(44°F)		7°C
(44°F)		7°C
(45°F)		8°C
(46°F)		10°C
(51°F)		12°C
(53°F)
Minimum12°C
(53°F)		12°C
(54°F)		11°C
(51°F)		9°C
(48°F)		7°C
(45°F)		6°C
(43°F)		6°C
(43°F)		6°C
(43°F)		6°C
(44°F)		7°C
(44°F)		10°C
(50°F)		10°C
(51°F)

Compare climate in Castlepoint with other places

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

Monthly average precipitation in Castlepoint, New Zealand

Castlepoint usually has the most precipitation in April, June and December, with an average of 12 rainy days and 106 mm (4.2 inches) of precipitation per month. The driest months in Castlepoint are January, February and May. On average, 55 mm (2.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Castlepoint. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)42 (1.7)57 (2.2)92 (3.6)101 (4.0)65 (2.6)103 (4.0)82 (3.2)69 (2.7)90 (3.6)71 (2.8)81 (3.2)113 (4.5)
Average precipitation days (≥ 1 mm)669101115131311121011

Monthly sunshine hours in Castlepoint, New Zealand

The sunniest months in Castlepoint are October, November and December, when the sun shines an average of 9 hours 56 minutes a day. Least sunny months in Castlepoint: May, June and July receive an average of 6 hours 3 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Castlepoint. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours279281262225202162192227239286303325
Mean daily daylight hours14h 43m13h 39m12h 19m10h 57m9h 50m9h 15m9h 32m10h 31m11h 48m13h 10m14h 23m15h 2m

Solar UV radiation in Castlepoint, New Zealand

Castlepoint experiences the highest level of ultraviolet (UV) radiation in January, February and December, when the maximum UV index can reach values of 13 - 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 4. For more detailed information, check out our hourly Castlepoint UV Index data.

Average daily maximum UV levels by month for Castlepoint. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)1313974224691113