All Countries
Weather & Climate in Port Chalmers, New Zealand
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Port Chalmers experiences four distinct seasons with an average annual temperature of 53°F (12°C). Winters average 62°F in January while summers reach 45°F in July / relatively mild seasonal variation. The area gets 283 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 34.8 inches. The area receives 1.1 inches of snow annually. The city sits at an elevation of 443 feet.
Temperature
62°F Jan (17°C)
45°F Jul (7°C)
| Annual Average | 52.7°F |
| 2% below US avg | |
| January Average | 62°F (17°C) |
| July Average | 45°F (7°C) |
| Sunny Days | 283 days/yr |
Geography
| Elevation | 443 ft (135 m) |
| Area | 221.7 sq mi (574.3 km²) |
| Population Density | 7/sq mi |
| Coordinates | -45.8166°N, 170.6204°W |
| Timezone | Pacific/Auckland |
Precipitation & Snow
Air Quality
Earthquake History
14 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.8.
| Feb 8, 1998 | 42 km WNW of Oamaru, New Zealand | M4.8 | 95 km | 10 km |
| Oct 12, 2000 | 15 km N of Papatowai, New Zealand | M4.5 | 109 km | 31 km |
| Feb 11, 2004 | 68 km WSW of Oamaru, New Zealand | M4.5 | 75 km | 12 km |
| Jun 1, 2015 | 33 km WNW of Dunedin, New Zealand | M4.3 | 40 km | 9 km |
| May 21, 1999 | 62 km ENE of Wanaka, New Zealand | M4.3 | 148 km | 12 km |
| Feb 6, 2011 | 19 km NNW of Papatowai, New Zealand | M4.1 | 113 km | 12 km |
| Jul 1, 2017 | 6 km NE of Cromwell, New Zealand | M4.1 | 140 km | 5 km |
| Oct 21, 2000 | 36 km ESE of Oamaru, New Zealand | M4.0 | 84 km | 12 km |
| May 3, 1994 | 24 km S of Dunedin, New Zealand | M3.8 | 33 km | 33 km |
| Jun 30, 2003 | 64 km SSE of Cromwell, New Zealand | M3.8 | 85 km | 21 km |
| May 10, 2004 | 16 km WNW of Papatowai, New Zealand | M3.7 | 131 km | 13 km |
| Feb 24, 2006 | 45 km NE of Portobello, New Zealand | M3.7 | 44 km | 12 km |
| Jul 25, 2022 | 3 km ESE of Cromwell, New Zealand | M3.3 | 137 km | 13 km |
| Jul 17, 2022 | 4 km SE of Cromwell, New Zealand | M2.9 | 136 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
1 tsunami recorded within 500 km.
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1839 | WAIKAWA, SOUTHLAND | Unknown | — | — | 146 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 62°F (17°C) | 3.2 in | Warmest |
| February | 57°F (14°C) | 2.4 in | |
| March | 55°F (13°C) | 3.5 in | Wettest |
| April | 51°F (11°C) | 2.6 in | |
| May | 46°F (8°C) | 2.9 in | |
| June | 43°F (6°C) | 2.4 in | Coldest |
| July | 45°F (7°C) | 2.6 in | |
| August | 43°F (6°C) | 2.5 in | |
| September | 46°F (8°C) | 2.2 in | Driest |
| October | 49°F (10°C) | 3.0 in | |
| November | 52°F (11°C) | 3.0 in | |
| December | 55°F (13°C) | 3.2 in |
Port Chalmers has a seasonal temperature swing of 20°F / from 43°F in June to 62°F in January. Total annual precipitation is 33.3 inches, with March being the wettest month (3.5") and September the driest (2.2").