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Weather & Climate in Isimu, Indonesia
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Isimu has a warm climate with an average annual temperature of 79°F (26°C). Winters average 79°F in January while summers reach 78°F in July / relatively mild seasonal variation. The area gets 343 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 78.2 inches (wetter than the 38-inch national average). The city sits at an elevation of 102 feet.
Temperature
79°F Jan (26°C)
78°F Jul (25°C)
| Annual Average | 78.5°F |
| 45% above US avg | |
| January Average | 79°F (26°C) |
| July Average | 78°F (25°C) |
| Sunny Days | 343 days/yr |
Geography
| Elevation | 102 ft (31 m) |
| Area | 25.0 sq mi (64.8 km²) |
| Population Density | 0/sq mi |
| Coordinates | 0.6446°N, 122.8614°W |
| Timezone | Asia/Makassar |
Precipitation & Snow
Air Quality
Earthquake History
1,503 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M7.8.
| Apr 18, 1990 | 75 km NNW of Gorontalo, Indonesia | M7.8 | 60 km | 26 km |
| Jun 20, 1991 | 79 km NNW of Gorontalo, Indonesia | M7.5 | 62 km | 31 km |
| Nov 25, 1997 | 97 km NW of Gorontalo, Indonesia | M7.0 | 76 km | 24 km |
| May 19, 1991 | 69 km N of Gorontalo, Indonesia | M7.0 | 58 km | 33 km |
| Aug 8, 1991 | 67 km NW of Gorontalo, Indonesia | M6.7 | 45 km | 12 km |
| Apr 18, 1990 | 86 km N of Gorontalo, Indonesia | M6.5 | 77 km | 19 km |
| Apr 19, 1990 | 75 km NNE of Gorontalo, Indonesia | M6.5 | 82 km | 24 km |
| Sep 29, 1993 | 170 km W of Gorontalo, Indonesia | M6.4 | 149 km | 97 km |
| Jul 23, 2025 | 109 km W of Gorontalo, Indonesia | M6.3 | 89 km | 142 km |
| Jun 24, 2006 | 76 km NE of Luwuk, Indonesia | M6.3 | 121 km | 26 km |
| Dec 13, 1990 | 88 km WSW of Tomohon, Indonesia | M6.2 | 141 km | 33 km |
| Apr 16, 1992 | 89 km NW of Gorontalo, Indonesia | M6.1 | 68 km | 30 km |
| Jan 19, 2020 | 108 km SE of Gorontalo, Indonesia | M6.1 | 134 km | 122 km |
| Jan 6, 2021 | 53 km SSW of Gorontalo, Indonesia | M6.1 | 65 km | 148 km |
| Dec 9, 2001 | 63 km SSW of Gorontalo, Indonesia | M6.1 | 72 km | 156 km |
| Mar 15, 2015 | 70 km NW of Luwuk, Indonesia | M6.1 | 146 km | 31 km |
| Mar 14, 2001 | 130 km W of Gorontalo, Indonesia | M6.0 | 110 km | 109 km |
| Nov 8, 1995 | 175 km WNW of Gorontalo, Indonesia | M6.0 | 150 km | 20 km |
| Nov 1, 1991 | 131 km NW of Gorontalo, Indonesia | M6.0 | 107 km | 37 km |
| Apr 26, 1990 | 63 km NNW of Gorontalo, Indonesia | M6.0 | 46 km | 24 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
2 tsunamis recorded within 500 km. Highest wave on record: 0.1 m (0 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 2008 | SULAWESI | Earthquake | 0.1 m | 6 | 110 km |
| 1939 | N. MOLUCCAS ISLANDS | Earthquake | — | — | 73 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
1 volcano within 200 km. Closest: Ambang (174 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Ambang | Complex | 1,795 m (5,889 ft) | 2005 | 174 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 79°F (26°C) | 6.7 in | Warmest |
| February | 78°F (26°C) | 6.0 in | |
| March | 79°F (26°C) | 6.2 in | |
| April | 79°F (26°C) | 6.8 in | |
| May | 79°F (26°C) | 7.5 in | Wettest |
| June | 78°F (26°C) | 6.4 in | |
| July | 78°F (25°C) | 5.5 in | Coldest |
| August | 78°F (26°C) | 3.9 in | |
| September | 79°F (26°C) | 3.7 in | Driest |
| October | 79°F (26°C) | 4.9 in | |
| November | 79°F (26°C) | 6.9 in | |
| December | 79°F (26°C) | 6.5 in |
Isimu has a seasonal temperature swing of 2°F / from 78°F in July to 79°F in January. Total annual precipitation is 71.0 inches, with May being the wettest month (7.5") and September the driest (3.7").