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Weather & Climate in Ratahan, Indonesia
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Ratahan has a warm climate with an average annual temperature of 74°F (24°C). Winters average 80°F in January while summers reach 74°F in July / relatively mild seasonal variation. The area gets 339 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 124.9 inches (wetter than the 38-inch national average). The city sits at an elevation of 1,155 feet.
Temperature
80°F Jan (27°C)
74°F Jul (24°C)
| Annual Average | 74.3°F |
| 38% above US avg | |
| January Average | 80°F (27°C) |
| July Average | 74°F (24°C) |
| Sunny Days | 339 days/yr |
Geography
| Elevation | 1,155 ft (352 m) |
| Area | 56.8 sq mi (147.1 km²) |
| Population Density | 0/sq mi |
| Coordinates | 1.0549°N, 124.8012°W |
| Timezone | Asia/Makassar |
Precipitation & Snow
Air Quality
Earthquake History
1,405 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.9.
| Dec 9, 1993 | 150 km SE of Tondano, Indonesia | M6.9 | 147 km | 15 km |
| Dec 9, 1993 | Molucca Sea | M6.8 | 140 km | 16 km |
| Oct 28, 1998 | 128 km ESE of Tondano, Indonesia | M6.6 | 132 km | 33 km |
| Jun 30, 2004 | 58 km S of Tomohon, Indonesia | M6.3 | 30 km | 91 km |
| May 19, 2006 | 161 km S of Tondano, Indonesia | M6.3 | 134 km | 35 km |
| Apr 5, 2010 | 164 km S of Tondano, Indonesia | M6.2 | 140 km | 25 km |
| Dec 13, 1990 | 88 km WSW of Tomohon, Indonesia | M6.2 | 86 km | 33 km |
| Sep 10, 2014 | 172 km S of Tondano, Indonesia | M6.2 | 148 km | 35 km |
| Feb 25, 2025 | 45 km E of Modisi, Indonesia | M6.1 | 73 km | 22 km |
| Aug 28, 1998 | 161 km S of Tondano, Indonesia | M6.1 | 137 km | 66 km |
| Jun 10, 1992 | 83 km WSW of Tomohon, Indonesia | M6.0 | 79 km | 31 km |
| Oct 29, 1995 | 119 km ESE of Tondano, Indonesia | M6.0 | 123 km | 69 km |
| Feb 9, 2008 | 171 km S of Tondano, Indonesia | M6.0 | 147 km | 38 km |
| Jun 6, 1992 | 89 km WSW of Tomohon, Indonesia | M6.0 | 85 km | 18 km |
| May 15, 1990 | 105 km W of Tomohon, Indonesia | M6.0 | 104 km | 30 km |
| Oct 13, 2001 | 129 km ESE of Tondano, Indonesia | M6.0 | 133 km | 33 km |
| Dec 12, 1993 | 154 km SE of Tondano, Indonesia | M5.9 | 148 km | 33 km |
| Sep 10, 2014 | 166 km S of Tondano, Indonesia | M5.9 | 142 km | 30 km |
| Dec 11, 1996 | 154 km S of Tondano, Indonesia | M5.9 | 131 km | 10 km |
| Jan 20, 1995 | 118 km ESE of Laikit, Laikit II (Dimembe), Indonesia | M5.9 | 134 km | 57 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
6 tsunamis recorded within 500 km. Highest wave on record: 1.0 m (3 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1859 | N. MOLUCCAS ISLANDS | Earthquake | 1.0 m | — | 140 km |
| 1932 | NORTH SULAWESI | Earthquake | — | 7 | 142 km |
| 1885 | SULAWESI ISLAND | Unknown | — | — | 56 km |
| 1859 | N. MOLUCCAS ISLANDS | Unknown | — | — | 48 km |
| 1857 | KEMA, SULAWESI I, N. MOLUCCAS IS | Earthquake | — | — | 55 km |
| 1845 | CELEBES SEA | Earthquake | — | 118 | 50 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
7 volcanoes within 200 km. Closest: Soputan (10 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Soputan | Stratovolcano | 1,785 m (5,856 ft) | 2020 | 10 km |
| Tondano Caldera | Caldera | 1,202 m (3,944 ft) | Unknown | 20 km |
| Lokon-Empung | Stratovolcano(es) | 1,580 m (5,184 ft) | 2015 | 34 km |
| Mahawu | Stratovolcano | 1,299 m (4,262 ft) | 1977 | 34 km |
| Klabat | Stratovolcano | 1,968 m (6,457 ft) | Unknown | 51 km |
| Ambang | Complex | 1,795 m (5,889 ft) | 2005 | 54 km |
| Tangkoko-Duasudara | Stratovolcano | 1,334 m (4,377 ft) | 1880 | 67 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 80°F (27°C) | 10.7 in | Warmest, Wettest |
| February | 73°F (23°C) | 9.1 in | Coldest |
| March | 74°F (23°C) | 8.8 in | |
| April | 74°F (24°C) | 9.3 in | |
| May | 75°F (24°C) | 9.7 in | |
| June | 75°F (24°C) | 7.3 in | |
| July | 74°F (24°C) | 5.1 in | |
| August | 75°F (24°C) | 3.9 in | Driest |
| September | 74°F (24°C) | 5.0 in | |
| October | 75°F (24°C) | 7.0 in | |
| November | 75°F (24°C) | 9.8 in | |
| December | 74°F (23°C) | 10.1 in |
Ratahan has a seasonal temperature swing of 7°F / from 73°F in February to 80°F in January. Total annual precipitation is 95.8 inches, with January being the wettest month (10.7") and August the driest (3.9").