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Weather & Climate in Avarua, Cook Islands
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Avarua has a warm climate with an average annual temperature of 74°F (24°C). Winters average 78°F in January while summers reach 71°F in July / relatively mild seasonal variation. The area gets 194 sunny days per year. Annual precipitation totals 78.3 inches (wetter than the 38-inch national average). The city sits at an elevation of 23 feet.
Temperature
78°F Jan (25°C)
71°F Jul (21°C)
| Annual Average | 74.4°F |
| 38% above US avg | |
| January Average | 78°F (25°C) |
| July Average | 71°F (21°C) |
| Sunny Days | 194 days/yr |
Geography
| Elevation | 23 ft (7 m) |
| Area | 265.9 sq mi (688.8 km²) |
| Population Density | 50/sq mi |
| Coordinates | -21.2075°N, 159.7755°W |
| Timezone | Pacific/Rarotonga |
Precipitation & Snow
Air Quality
Hurricane History
8 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 4.
| Year | Name | Category | Max Wind | Closest |
| 2010 | Pat | Category 2 | 75 mph | 192 km |
| 2005 | Meena | Category 4 | 132 mph | 39 km |
| 2005 | Olaf | Category 3 | 104 mph | 270 km |
| 2005 | Nancy | Category 3 | 92 mph | 54 km |
| 1995 | William | Category 1 | 63 mph | 217 km |
| 1993 | Nisha | Category 1 | — | 121 km |
| 1989 | Judy | Category 2 | 81 mph | 162 km |
| 1986 | Ima | Category 1 | 81 mph | 286 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 78°F (25°C) | 10.2 in | Wettest |
| February | 79°F (26°C) | 8.5 in | Warmest |
| March | 78°F (26°C) | 7.8 in | |
| April | 77°F (25°C) | 7.7 in | |
| May | 74°F (23°C) | 6.6 in | |
| June | 72°F (22°C) | 4.3 in | |
| July | 71°F (21°C) | 3.7 in | Coldest, Driest |
| August | 71°F (21°C) | 4.8 in | |
| September | 71°F (22°C) | 4.1 in | |
| October | 73°F (23°C) | 5.0 in | |
| November | 75°F (24°C) | 6.8 in | |
| December | 76°F (25°C) | 8.7 in |
Avarua has a seasonal temperature swing of 8°F / from 71°F in July to 79°F in February. Total annual precipitation is 78.3 inches, with January being the wettest month (10.2") and July the driest (3.7").