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Weather & Climate in Garapan, Northern Mariana Islands
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Garapan has a warm climate with an average annual temperature of 81°F (27°C). Winters average 79°F in January while summers reach 82°F in July / relatively mild seasonal variation. The area gets 191 sunny days per year. Annual precipitation totals 80.7 inches (wetter than the 38-inch national average). The city sits at an elevation of 220 feet.
Temperature
79°F Jan (26°C)
82°F Jul (28°C)
| Annual Average | 81.0°F |
| 50% above US avg | |
| January Average | 79°F (26°C) |
| July Average | 82°F (28°C) |
| Sunny Days | 191 days/yr |
Geography
| Elevation | 220 ft (67 m) |
| Area | 0.7 sq mi (1.8 km²) |
| Population Density | 7,684/sq mi |
| Coordinates | 15.2111°N, 145.7204°W |
| Timezone | Pacific/Saipan |
Precipitation & Snow
Air Quality
Earthquake History
787 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.6.
| Feb 5, 2005 | 89 km N of Saipan, Northern Mariana Islands | M6.6 | 90 km | 143 km |
| Jun 6, 1993 | 112 km NE of Saipan, Northern Mariana Islands | M6.5 | 116 km | 14 km |
| Aug 14, 2002 | 114 km SSE of San Jose Village, Northern Mariana Islands | M6.5 | 134 km | 30 km |
| Apr 2, 2024 | 137 km ENE of Saipan, Northern Mariana Islands | M6.2 | 141 km | 10 km |
| May 15, 1998 | 71 km N of Yigo Village, Guam | M6.0 | 146 km | 154 km |
| Jun 21, 2000 | 64 km N of Yigo Village, Guam | M5.9 | 147 km | 112 km |
| Jun 23, 2020 | 91 km NE of Yigo Village, Guam | M5.9 | 135 km | 65 km |
| Dec 18, 1997 | 107 km WSW of San Jose Village, Northern Mariana Islands | M5.8 | 128 km | 33 km |
| Aug 30, 1997 | 90 km WSW of San Jose Village, Northern Mariana Islands | M5.8 | 112 km | 33 km |
| May 27, 1997 | 127 km NNW of Saipan, Northern Mariana Islands | M5.6 | 127 km | 536 km |
| Oct 30, 1990 | 135 km ESE of Saipan, Northern Mariana Islands | M5.6 | 139 km | 41 km |
| Jan 4, 1994 | 133 km N of Saipan, Northern Mariana Islands | M5.5 | 134 km | 535 km |
| Jun 19, 2009 | 68 km NNE of Yigo Village, Guam | M5.5 | 139 km | 114 km |
| Apr 11, 2008 | 130 km NW of Saipan, Northern Mariana Islands | M5.5 | 128 km | 10 km |
| May 29, 2005 | 141 km NW of Saipan, Northern Mariana Islands | M5.5 | 140 km | 10 km |
| Mar 13, 2017 | 77 km SW of San Jose Village, Northern Mariana Islands | M5.5 | 107 km | 99 km |
| Sep 14, 1999 | 52 km ESE of Saipan, Northern Mariana Islands | M5.5 | 56 km | 92 km |
| Apr 11, 2008 | 141 km NW of Saipan, Northern Mariana Islands | M5.5 | 140 km | 10 km |
| Apr 17, 2008 | 119 km NW of Saipan, Northern Mariana Islands | M5.5 | 117 km | 10 km |
| Jul 17, 1990 | 146 km E of Saipan, Northern Mariana Islands | M5.4 | 150 km | 27 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
20 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 5.
| Year | Name | Category | Max Wind | Closest |
| 2023 | Bolaven | Category 5 | 115 mph | 73 km |
| 2023 | Mawar | Category 5 | 115 mph | 185 km |
| 2019 | Hagibis | Category 5 | 121 mph | 121 km |
| 2019 | Bualoi | Category 4 | 104 mph | 98 km |
| 2018 | Yutu | Category 5 | 132 mph | 25 km |
| 2018 | Jebi | Category 5 | 121 mph | 290 km |
| 2018 | Mangkhut | Category 3 | 98 mph | 102 km |
| 2018 | Maria | Category 1 | 63 mph | 240 km |
| 2015 | Soudelor | Category 4 | 109 mph | 23 km |
| 2015 | Nangka | Category 4 | 115 mph | 236 km |
| 2015 | Dolphin | Category 3 | 109 mph | 171 km |
| 2015 | Champi | Category 1 | 75 mph | 296 km |
| 2015 | Goni | Category 1 | 75 mph | 164 km |
| 2014 | Vongfong | Category 2 | 69 mph | 106 km |
| 2014 | Tapah | Category 1 | 58 mph | 185 km |
| 2009 | Melor | Category 5 | 115 mph | 136 km |
| 2009 | Choi-wan | Category 4 | 121 mph | 206 km |
| 2007 | Kong-rey | Category 3 | 92 mph | 76 km |
| 2005 | Nabi | Category 3 | 104 mph | 76 km |
| 2004 | Chaba | Category 5 | 127 mph | 83 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Nearby Volcanoes
3 volcanoes within 200 km. Closest: East Diamante (80 km).
| Name | Type | Elevation | Last Eruption | Distance |
| East Diamante | Submarine | -127 m (-417 ft) | Unknown | 80 km |
| NW Rota-1 | Submarine | -517 m (-1,696 ft) | 2010 | 122 km |
| Anatahan | Stratovolcano | 790 m (2,592 ft) | 2008 | 127 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 79°F (26°C) | 4.5 in | |
| February | 79°F (26°C) | 3.2 in | Coldest |
| March | 79°F (26°C) | 3.1 in | Driest |
| April | 81°F (27°C) | 3.5 in | |
| May | 82°F (28°C) | 3.8 in | |
| June | 83°F (28°C) | 4.8 in | Warmest |
| July | 82°F (28°C) | 9.8 in | |
| August | 82°F (28°C) | 11.9 in | |
| September | 82°F (28°C) | 13.6 in | Wettest |
| October | 82°F (28°C) | 10.6 in | |
| November | 81°F (27°C) | 6.9 in | |
| December | 80°F (27°C) | 4.9 in |
Garapan has a seasonal temperature swing of 4°F / from 79°F in February to 83°F in June. Total annual precipitation is 80.7 inches, with September being the wettest month (13.6") and March the driest (3.1").