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Weather & Climate in Arno, Marshall Islands
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Arno has a warm climate with an average annual temperature of 81°F (27°C). Winters average 81°F in January while summers reach 81°F in July / relatively mild seasonal variation. The area gets 104 sunny days per year, below the national average of 205. Annual precipitation totals 128.0 inches (wetter than the 38-inch national average). The city sits at an elevation of 46 feet.
Temperature
81°F Jan (27°C)
81°F Jul (27°C)
| Annual Average | 81.4°F |
| 51% above US avg | |
| January Average | 81°F (27°C) |
| July Average | 81°F (27°C) |
| Sunny Days | 104 days/yr |
Geography
| Elevation | 46 ft (14 m) |
| Area | 3.8 sq mi (9.7 km²) |
| Population Density | 552/sq mi |
| Coordinates | 7.0669°N, 171.5541°W |
| Timezone | Pacific/Majuro |
Precipitation & Snow
Air Quality
Hurricane History
1 hurricane (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 2.
| Year | Name | Category | Max Wind | Closest |
| 1997 | Paka | Category 2 | 75 mph | 78 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 81°F (27°C) | 7.8 in | Coldest |
| February | 81°F (27°C) | 6.9 in | Driest |
| March | 81°F (27°C) | 7.8 in | |
| April | 81°F (27°C) | 10.9 in | |
| May | 81°F (27°C) | 11.6 in | |
| June | 82°F (28°C) | 11.0 in | |
| July | 81°F (27°C) | 12.1 in | |
| August | 82°F (28°C) | 11.7 in | |
| September | 82°F (28°C) | 11.6 in | Warmest |
| October | 82°F (28°C) | 13.1 in | Wettest |
| November | 82°F (28°C) | 12.2 in | |
| December | 81°F (27°C) | 11.2 in |
Arno has a seasonal temperature swing of 1°F / from 81°F in January to 82°F in September. Total annual precipitation is 128.0 inches, with October being the wettest month (13.1") and February the driest (6.9").