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Weather & Climate in Portobello, New Zealand
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Portobello 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 253 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 | 253 ft (77 m) |
| Area | 221.7 sq mi (574.3 km²) |
| Population Density | 5/sq mi |
| Coordinates | -45.8500°N, 170.6500°W |
| Timezone | Pacific/Auckland |
Precipitation & Snow
Air Quality
Earthquake History
13 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 | 99 km | 10 km |
| Oct 12, 2000 | 15 km N of Papatowai, New Zealand | M4.5 | 108 km | 31 km |
| Feb 11, 2004 | 68 km WSW of Oamaru, New Zealand | M4.5 | 79 km | 12 km |
| Jun 1, 2015 | 33 km WNW of Dunedin, New Zealand | M4.3 | 43 km | 9 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 | 144 km | 5 km |
| Oct 21, 2000 | 36 km ESE of Oamaru, New Zealand | M4.0 | 85 km | 12 km |
| May 3, 1994 | 24 km S of Dunedin, New Zealand | M3.8 | 31 km | 33 km |
| Jun 30, 2003 | 64 km SSE of Cromwell, New Zealand | M3.8 | 88 km | 21 km |
| May 10, 2004 | 16 km WNW of Papatowai, New Zealand | M3.7 | 130 km | 13 km |
| Feb 24, 2006 | 45 km NE of Portobello, New Zealand | M3.7 | 45 km | 12 km |
| Jul 25, 2022 | 3 km ESE of Cromwell, New Zealand | M3.3 | 141 km | 13 km |
| Jul 17, 2022 | 4 km SE of Cromwell, New Zealand | M2.9 | 140 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) | 2.6 in | Warmest |
| February | 58°F (15°C) | 2.2 in | Driest |
| March | 56°F (13°C) | 3.3 in | |
| April | 52°F (11°C) | 2.6 in | |
| May | 47°F (8°C) | 3.4 in | Wettest |
| June | 44°F (6°C) | 2.9 in | Coldest |
| July | 45°F (7°C) | 3.3 in | |
| August | 44°F (7°C) | 2.6 in | |
| September | 47°F (8°C) | 2.3 in | |
| October | 50°F (10°C) | 2.6 in | |
| November | 53°F (12°C) | 2.5 in | |
| December | 56°F (13°C) | 3.1 in |
Portobello has a seasonal temperature swing of 19°F / from 44°F in June to 62°F in January. Total annual precipitation is 33.6 inches, with May being the wettest month (3.4") and February the driest (2.2").