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Weather & Climate in Bonak, Indonesia
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Bonak has a warm climate with an average annual temperature of 80°F (27°C). Winters average 80°F in January while summers reach 77°F in July / relatively mild seasonal variation. The area gets 349 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 46.1 inches (wetter than the 38-inch national average). The city sits at an elevation of 1,637 feet.
Temperature
80°F Jan (27°C)
77°F Jul (25°C)
| Annual Average | 80.1°F |
| 48% above US avg | |
| January Average | 80°F (27°C) |
| July Average | 77°F (25°C) |
| Sunny Days | 349 days/yr |
Geography
| Elevation | 1,637 ft (499 m) |
| Area | 1,646.4 sq mi (4,264.0 km²) |
| Population Density | 0/sq mi |
| Coordinates | -9.8949°N, 123.8961°W |
| Timezone | Asia/Makassar |
Precipitation & Snow
Air Quality
Earthquake History
751 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.7.
| Apr 23, 2004 | 105 km WNW of Naisano Dua, Indonesia | M6.7 | 130 km | 66 km |
| Dec 5, 1995 | 25 km WNW of Atambua, Indonesia | M6.4 | 129 km | 33 km |
| Jan 17, 1997 | 81 km NNW of Naisano Dua, Indonesia | M6.2 | 117 km | 111 km |
| Jun 15, 2015 | 47 km S of Suai, Timor Leste | M5.8 | 150 km | 20 km |
| Jan 15, 2020 | Timor region, Indonesia | M5.7 | 57 km | 10 km |
| Jan 28, 2009 | 38 km NW of Pante Makasar, Timor Leste | M5.7 | 110 km | 66 km |
| Sep 18, 1995 | 74 km WNW of Pante Makasar, Timor Leste | M5.7 | 113 km | 33 km |
| Feb 11, 1992 | 16 km SSW of Atambua, Indonesia | M5.7 | 125 km | 27 km |
| Jul 25, 2023 | 53 km WNW of Pante Makasar, Timor Leste | M5.6 | 95 km | 88 km |
| Dec 29, 1992 | 41 km NE of Naisano Dua, Indonesia | M5.5 | 67 km | 95 km |
| Dec 14, 2009 | 16 km NNE of Kupang, Indonesia | M5.5 | 30 km | 46 km |
| Jan 10, 1990 | 25 km ENE of Kupang, Indonesia | M5.5 | 22 km | 33 km |
| Jul 18, 2005 | 7 km SW of Soe, Indonesia | M5.5 | 38 km | 10 km |
| Aug 31, 2023 | 19 km NE of Naisano Dua, Indonesia | M5.4 | 47 km | 47 km |
| Jun 24, 1991 | 45 km SE of Kupang, Indonesia | M5.4 | 60 km | 28 km |
| Jul 18, 2005 | 23 km ESE of Soe, Indonesia | M5.4 | 64 km | 10 km |
| Nov 18, 2013 | 20 km NE of Kupang, Indonesia | M5.4 | 24 km | 29 km |
| Oct 31, 1990 | 68 km NW of Pante Makasar, Timor Leste | M5.4 | 129 km | 76 km |
| Apr 25, 2000 | 89 km W of Kupang, Indonesia | M5.4 | 123 km | 33 km |
| Nov 14, 2001 | 41 km NNW of Pante Makasar, Timor Leste | M5.3 | 121 km | 85 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
3 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 1.
| Year | Name | Category | Max Wind | Closest |
| 2017 | Frances | Category 1 | 81 mph | 280 km |
| 1991 | Marian | Category 1 | 98 mph | 238 km |
| 1981 | Max | Category 1 | 92 mph | 268 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
1 tsunami recorded within 500 km.
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1891 | TIMOR SEA | Earthquake | — | — | 100 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
5 volcanoes within 200 km. Closest: Iliwerung (156 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Iliwerung | Complex | 1,018 m (3,340 ft) | 2013 | 156 km |
| Sirung | Complex | 862 m (2,828 ft) | 2015 | 156 km |
| Ililabalekan | Stratovolcano | 1,018 m (3,340 ft) | Unknown | 160 km |
| Iliboleng | Stratovolcano | 1,659 m (5,443 ft) | 1993 | 186 km |
| Lewotobi | Stratovolcano(es) | 1,703 m (5,587 ft) | 2003 | 194 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).