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Weather & Climate in Bontang, Indonesia
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Bontang has a warm climate with an average annual temperature of 82°F (28°C). Winters average 82°F in January while summers reach 82°F in July / relatively mild seasonal variation. The area gets 201 sunny days per year. Annual precipitation totals 74.5 inches (wetter than the 38-inch national average). The city sits at an elevation of 33 feet.
Temperature
82°F Jan (28°C)
82°F Jul (28°C)
| Annual Average | 82.2°F |
| 52% above US avg | |
| January Average | 82°F (28°C) |
| July Average | 82°F (28°C) |
| Sunny Days | 201 days/yr |
Geography
| Elevation | 33 ft (10 m) |
| Area | 157.0 sq mi (406.7 km²) |
| Population Density | 1,210/sq mi |
| Coordinates | 0.1324°N, 117.4854°W |
| Timezone | Asia/Makassar |
Precipitation & Snow
Air Quality
Earthquake History
9 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.4.
| Jun 16, 2000 | 145 km NE of Bontang, Indonesia | M5.4 | 146 km | 33 km |
| Dec 26, 1994 | 131 km NNE of Bontang, Indonesia | M4.9 | 132 km | 33 km |
| Apr 26, 2017 | 100 km ENE of Bontang, Indonesia | M4.6 | 100 km | 10 km |
| Sep 7, 2001 | 137 km NE of Bontang, Indonesia | M4.6 | 137 km | 33 km |
| Jun 16, 2025 | 137 km ENE of Bontang, Indonesia | M4.5 | 138 km | 13 km |
| Feb 24, 2007 | 138 km ENE of Bontang, Indonesia | M4.4 | 139 km | 30 km |
| Aug 31, 2004 | 147 km ENE of Bontang, Indonesia | M4.4 | 148 km | 130 km |
| Apr 22, 2000 | 132 km NE of Bontang, Indonesia | M4.2 | 133 km | 33 km |
| May 4, 1995 | 140 km ENE of Bontang, Indonesia | M4.1 | 141 km | 33 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 82°F (28°C) | 6.4 in | |
| February | 82°F (28°C) | 5.5 in | |
| March | 82°F (28°C) | 8.3 in | |
| April | 83°F (28°C) | 8.4 in | Wettest |
| May | 83°F (28°C) | 7.6 in | Warmest |
| June | 82°F (28°C) | 5.6 in | |
| July | 82°F (28°C) | 3.5 in | Coldest, Driest |
| August | 82°F (28°C) | 4.2 in | |
| September | 82°F (28°C) | 5.0 in | |
| October | 83°F (28°C) | 5.1 in | |
| November | 82°F (28°C) | 7.6 in | |
| December | 82°F (28°C) | 7.3 in |
Bontang has a seasonal temperature swing of 1°F / from 82°F in July to 83°F in May. Total annual precipitation is 74.5 inches, with April being the wettest month (8.4") and July the driest (3.5").