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Weather & Climate in Castlepoint, New Zealand
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Castlepoint experiences four distinct seasons with an average annual temperature of 55°F (13°C). Winters average 63°F in January while summers reach 48°F in July / relatively mild seasonal variation. The area gets 261 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 41.5 inches. The city sits at an elevation of 89 feet.
Temperature
63°F Jan (17°C)
48°F Jul (9°C)
| Annual Average | 55.3°F |
| 2% above US avg | |
| January Average | 63°F (17°C) |
| July Average | 48°F (9°C) |
| Sunny Days | 261 days/yr |
Geography
| Elevation | 89 ft (27 m) |
| Area | 1,028.7 sq mi (2,664.3 km²) |
| Population Density | 2/sq mi |
| Coordinates | -40.9000°N, 176.2167°W |
| Timezone | Pacific/Auckland |
Precipitation & Snow
Air Quality
Earthquake History
836 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.4.
| May 13, 1990 | 39 km E of Palmerston North, New Zealand | M6.4 | 68 km | 21 km |
| Feb 19, 1990 | 41 km E of Palmerston North, New Zealand | M6.3 | 62 km | 24 km |
| Jan 20, 2014 | 35 km NNE of Masterton, New Zealand | M6.1 | 43 km | 28 km |
| Feb 15, 2023 | 55 km NW of Raumati Beach, New Zealand | M5.7 | 147 km | 78 km |
| Apr 11, 1993 | 28 km WSW of Hastings, New Zealand | M5.7 | 132 km | 33 km |
| May 24, 2020 | 29 km WNW of Foxton, New Zealand | M5.6 | 121 km | 46 km |
| Oct 4, 1990 | 25 km SE of Brooklyn, New Zealand | M5.6 | 124 km | 37 km |
| Sep 8, 1991 | 29 km WSW of Bulls, New Zealand | M5.6 | 122 km | 88 km |
| Oct 15, 2001 | 21 km WSW of Hastings, New Zealand | M5.5 | 137 km | 48 km |
| Oct 6, 1990 | 24 km SW of Waipawa, New Zealand | M5.5 | 106 km | 39 km |
| Mar 2, 1992 | 63 km N of Castlepoint, New Zealand | M5.5 | 64 km | 28 km |
| Apr 25, 2023 | 37 km E of Dannevirke, New Zealand | M5.4 | 76 km | 22 km |
| Sep 24, 2001 | 67 km NNE of Castlepoint, New Zealand | M5.4 | 67 km | 33 km |
| Feb 18, 2003 | 63 km NNE of Castlepoint, New Zealand | M5.3 | 64 km | 22 km |
| Jan 20, 2005 | 16 km SE of Upper Hutt, New Zealand | M5.3 | 92 km | 39 km |
| Jul 4, 2011 | 68 km E of Castlepoint, New Zealand | M5.3 | 68 km | 12 km |
| Apr 25, 2023 | North Island of New Zealand | M5.3 | 72 km | 20 km |
| Aug 15, 1990 | 59 km NNE of Castlepoint, New Zealand | M5.2 | 60 km | 31 km |
| Jan 28, 2025 | 22 km NE of Kopuaranga, New Zealand | M5.2 | 35 km | 46 km |
| Mar 29, 2000 | 18 km WSW of Masterton, New Zealand | M5.2 | 65 km | 33 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
2 tsunamis recorded within 500 km. Highest wave on record: 15.0 m (49 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1931 | N. NEW ZEALAND | Eruption + Earthquake | 15.0 m | 261 | 127 km |
| 1855 | NORTHERN ISLAND | Earthquake | 11.0 m | — | 109 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
1 volcano within 200 km. Closest: Ruapehu (188 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Ruapehu | Stratovolcano | 2,797 m (9,177 ft) | 2007 | 188 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 63°F (17°C) | 2.1 in | Driest |
| February | 63°F (17°C) | 2.2 in | Warmest |
| March | 61°F (16°C) | 3.5 in | |
| April | 57°F (14°C) | 3.3 in | |
| May | 53°F (11°C) | 4.3 in | |
| June | 49°F (10°C) | 5.1 in | |
| July | 48°F (9°C) | 5.1 in | Coldest, Wettest |
| August | 49°F (9°C) | 4.9 in | |
| September | 51°F (11°C) | 3.4 in | |
| October | 54°F (12°C) | 2.4 in | |
| November | 57°F (14°C) | 2.3 in | |
| December | 60°F (16°C) | 2.9 in |
Castlepoint has a seasonal temperature swing of 15°F / from 48°F in July to 63°F in February. Total annual precipitation is 41.5 inches, with July being the wettest month (5.1") and January the driest (2.1").