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Tomohon, Indonesia

Full City Profile

27,624 Population 486/sq mi density
2,408 ft Elevation 734 meters
74°F Avg Temperature 23°C
Tomohon has a warm climate with an average annual temperature of 74°F (23°C). Winters average 73°F in January while summers reach 74°F in July. The area gets 169 sunny days per year. Annual precipitation totals 91.9 inches. The area receives 0.0 inches of snow annually.

Temperature

73°F Jan (23°C) 74°F Jul (24°C)
Annual Average74.2°F
37% above US avg
January Average73°F (23°C)
July Average74°F (24°C)
Sunny Days169 days/yr

Geography

Elevation2,408 ft (734 m)
Area56.8 sq mi (147.1 km²)
Population Density486/sq mi
Coordinates1.3168°N, 124.8038°W
TimezoneAsia/Makassar

Precipitation & Snow

Annual Rainfall 91.9"
142% above US avg
Snowfall 0.0"
Wettest Month (Jan) 10.20"
Driest Month (Aug) 3.66"

Air Quality

Earthquake History

1,048 earthquakes (M2.5+) within 150 km since 1990. Strongest: M6.6. Most recent: M4.4 on Aug 24, 2025.

Oct 28, 1998 128 km ESE of Tondano, Indonesia M6.6 140 km
Feb 28, 1996 123 km ENE of Laikit, Laikit II (Dimembe), Indonesia M6.4 147 km
Jun 30, 2004 58 km S of Tomohon, Indonesia M6.3 58 km
Dec 13, 1990 88 km WSW of Tomohon, Indonesia M6.2 88 km
Feb 25, 2025 45 km E of Modisi, Indonesia M6.1 102 km
May 15, 1990 105 km W of Tomohon, Indonesia M6.0 105 km
Oct 29, 1995 119 km ESE of Tondano, Indonesia M6.0 131 km
Jun 10, 1992 83 km WSW of Tomohon, Indonesia M6.0 84 km
Oct 13, 2001 129 km ESE of Tondano, Indonesia M6.0 141 km
Jun 6, 1992 89 km WSW of Tomohon, Indonesia M6.0 89 km
Jan 19, 1993 125 km ESE of Laikit, Laikit II (Dimembe), Indonesia M5.9 141 km
Jan 20, 1995 118 km ESE of Laikit, Laikit II (Dimembe), Indonesia M5.9 134 km
Apr 7, 1997 114 km SSE of Tondano, Indonesia M5.8 121 km
Oct 29, 1995 129 km ESE of Tondano, Indonesia M5.8 141 km
Jul 24, 2003 132 km S of Tomohon, Indonesia M5.8 134 km
Nov 30, 1990 98 km WSW of Tomohon, Indonesia M5.8 98 km
Jun 11, 1992 81 km WSW of Tomohon, Indonesia M5.8 81 km
Jul 1, 2009 120 km ESE of Laikit, Laikit II (Dimembe), Indonesia M5.8 132 km
May 16, 2010 90 km S of Tomohon, Indonesia M5.8 91 km
May 4, 2019 143 km WNW of Manado, Indonesia M5.7 147 km
Source: USGS (M2.5+, 1990–2025)

Tsunami History

5 tsunamis recorded within 500 km. Highest wave on record: 25.0 m (82 ft).

Year Location Cause Max Wave Deaths Distance
1871 RUANG Astronomical 25.0 m 400 127 km
1885 SULAWESI ISLAND Unknown 61 km
1859 N. MOLUCCAS ISLANDS Unknown 34 km
1857 KEMA, SULAWESI I, N. MOLUCCAS IS Earthquake 44 km
1845 CELEBES SEA Earthquake 118 21 km
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.

Nearby Volcanoes

7 volcanoes within 200 km. Closest: Lokon-Empung (5 km).

Name Type Elevation Last Eruption Distance
Lokon-Empung Stratovolcano(es) 1,580 m (5,184 ft) 2015 5 km
Mahawu Stratovolcano 1,299 m (4,262 ft) 1977 8 km
Tondano Caldera Caldera 1,202 m (3,944 ft) Unknown 10 km
Soputan Stratovolcano 1,785 m (5,856 ft) 2020 24 km
Klabat Stratovolcano 1,968 m (6,457 ft) Unknown 30 km
Tangkoko-Duasudara Stratovolcano 1,334 m (4,377 ft) 1880 48 km
Ambang Complex 1,795 m (5,889 ft) 2005 76 km
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.

Monthly Weather

Month Avg Temperature Precipitation Summary
January 73°F (23°C) 10.2 in Coldest, Wettest
February 73°F (23°C) 8.5 in
March 74°F (23°C) 8.4 in
April 74°F (23°C) 9.1 in
May 75°F (24°C) 9.6 in Warmest
June 75°F (24°C) 7.1 in
July 74°F (24°C) 4.9 in
August 75°F (24°C) 3.7 in Driest
September 74°F (24°C) 4.7 in
October 75°F (24°C) 6.8 in
November 75°F (24°C) 9.5 in
December 74°F (23°C) 9.5 in

Tomohon has a seasonal temperature swing of 2°F / from 73°F in January to 75°F in May. Total annual precipitation is 91.9 inches, with January being the wettest month (10.2") and August the driest (3.7").

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