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Weather & Climate in Trianon, New Caledonia
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Trianon has a warm climate with an average annual temperature of 74°F (23°C). Winters average 78°F in January while summers reach 70°F in July / relatively mild seasonal variation. The area gets 330 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 60.2 inches (wetter than the 38-inch national average). The city sits at an elevation of 66 feet.
Temperature
78°F Jan (26°C)
70°F Jul (21°C)
| Annual Average | 73.9°F |
| 37% above US avg | |
| January Average | 78°F (26°C) |
| July Average | 70°F (21°C) |
| Sunny Days | 330 days/yr |
Geography
| Elevation | 66 ft (20 m) |
| Area | 17.6 sq mi (45.7 km²) |
| Population Density | 167/sq mi |
| Coordinates | -22.2871°N, 166.4491°W |
| Timezone | Pacific/Noumea |
Precipitation & Snow
Air Quality
Earthquake History
5 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.6.
| Dec 3, 1990 | 53 km SSE of Mont-Dore, New Caledonia | M5.6 | 55 km | 12 km |
| Feb 24, 1991 | 47 km S of Mont-Dore, New Caledonia | M5.2 | 49 km | 33 km |
| Mar 17, 2023 | 39 km SE of Vao, New Caledonia | M4.6 | 150 km | 10 km |
| Jan 17, 2009 | 35 km NW of Vao, New Caledonia | M4.5 | 86 km | 10 km |
| Feb 19, 1999 | 29 km SE of Mont-Dore, New Caledonia | M4.2 | 36 km | 33 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
27 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 4.
| Year | Name | Category | Max Wind | Closest |
| 2022 | Dovi | Category 2 | 92 mph | 102 km |
| 2022 | Ruby | Category 1 | 63 mph | 88 km |
| 2021 | Niran | Category 3 | 127 mph | 46 km |
| 2018 | Hola | Category 2 | 81 mph | 269 km |
| 2018 | Gita | Category 2 | 81 mph | 216 km |
| 2017 | Donna | Category 2 | 63 mph | 191 km |
| 2017 | Cook | Category 2 | 98 mph | 78 km |
| 2006 | Jim | Category 1 | 92 mph | 193 km |
| 2003 | Erica | Category 4 | 115 mph | 33 km |
| 2003 | Beni | Category 2 | 92 mph | 299 km |
| 1999 | Frank | Category 2 | 92 mph | 46 km |
| 1999 | Dani | Category 2 | 92 mph | 224 km |
| 1997 | Drena | Category 3 | 92 mph | 71 km |
| 1996 | Beti | Category 3 | 104 mph | 46 km |
| 1994 | Theodore | Category 3 | — | 94 km |
| 1994 | Sarah | Category 2 | — | 299 km |
| 1994 | Rewa | Category 1 | 75 mph | 192 km |
| 1993 | Prema | Category 4 | — | 261 km |
| 1993 | Polly | Category 2 | — | 261 km |
| 1992 | Esau | Category 2 | 92 mph | 98 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 78°F (26°C) | 6.5 in | |
| February | 79°F (26°C) | 6.9 in | Warmest |
| March | 78°F (26°C) | 7.8 in | Wettest |
| April | 75°F (24°C) | 4.5 in | |
| May | 72°F (22°C) | 3.9 in | |
| June | 69°F (21°C) | 4.3 in | |
| July | 70°F (21°C) | 3.4 in | |
| August | 68°F (20°C) | 2.7 in | Coldest |
| September | 70°F (21°C) | 1.9 in | Driest |
| October | 72°F (22°C) | 2.2 in | |
| November | 75°F (24°C) | 3.3 in | |
| December | 77°F (25°C) | 4.8 in |
Trianon has a seasonal temperature swing of 12°F / from 68°F in August to 79°F in February. Total annual precipitation is 52.2 inches, with March being the wettest month (7.8") and September the driest (1.9").