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Weather & Climate in Rantau Prapat, Indonesia
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Rantau Prapat has a warm climate with an average annual temperature of 78°F (26°C). Winters average 77°F in January while summers reach 78°F in July / relatively mild seasonal variation. The area gets 319 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 146.3 inches (wetter than the 38-inch national average). The city sits at an elevation of 33 feet.
Temperature
77°F Jan (25°C)
78°F Jul (26°C)
| Annual Average | 78.2°F |
| 45% above US avg | |
| January Average | 77°F (25°C) |
| July Average | 78°F (26°C) |
| Sunny Days | 319 days/yr |
Geography
| Elevation | 33 ft (10 m) |
| Area | 2,044.3 sq mi (5,294.7 km²) |
| Population Density | 0/sq mi |
| Coordinates | 2.3321°N, 100.0521°W |
| Timezone | Asia/Jakarta |
Precipitation & Snow
Air Quality
Earthquake History
291 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.2.
| Nov 11, 1999 | 106 km SSE of Rantauprapat, Indonesia | M6.2 | 121 km | 211 km |
| May 19, 2008 | 31 km NNW of Padangsidempuan, Indonesia | M6.0 | 127 km | 10 km |
| Jun 14, 2011 | 38 km ENE of Sibolga, Indonesia | M5.6 | 118 km | 22 km |
| Jun 14, 2011 | 50 km N of Padangsidempuan, Indonesia | M5.5 | 108 km | 17 km |
| Mar 29, 2005 | 44 km N of Padangsidempuan, Indonesia | M5.5 | 112 km | 30 km |
| Mar 15, 2014 | 13 km S of Pematangsiantar, Indonesia | M5.4 | 123 km | 172 km |
| Mar 17, 2025 | 41 km ENE of Sibolga, Indonesia | M5.4 | 114 km | 47 km |
| Jul 11, 2017 | 10 km NNE of Parapat, Indonesia | M5.4 | 128 km | 147 km |
| Jul 15, 1995 | 14 km E of Parapat, Indonesia | M5.4 | 116 km | 165 km |
| Apr 19, 2015 | 26 km NE of Sibolga, Indonesia | M5.3 | 131 km | 123 km |
| May 19, 2008 | 39 km NNW of Padangsidempuan, Indonesia | M5.3 | 118 km | 10 km |
| Feb 20, 2012 | 30 km SW of Bandar, Indonesia | M5.2 | 77 km | 193 km |
| Dec 4, 2000 | 22 km WNW of Padangsidempuan, Indonesia | M5.2 | 148 km | 95 km |
| Aug 27, 2012 | 33 km SSE of Parapat, Indonesia | M5.2 | 114 km | 150 km |
| Oct 3, 2016 | 34 km ESE of Parapat, Indonesia | M5.1 | 97 km | 158 km |
| Mar 13, 2018 | 37 km NE of Sibolga, Indonesia | M5.1 | 122 km | 124 km |
| Apr 19, 2009 | 17 km S of Pematangsiantar, Indonesia | M5.1 | 119 km | 175 km |
| May 27, 1992 | 26 km WNW of Padangsidempuan, Indonesia | M5.1 | 144 km | 126 km |
| Feb 28, 2010 | 48 km NNE of Sibolga, Indonesia | M5.1 | 118 km | 58 km |
| Sep 14, 2024 | 34 km ENE of Sibolga, Indonesia | M5.0 | 121 km | 128 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
1 tsunami recorded within 500 km.
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1892 | NORTHEAST SUMATRA | Earthquake | — | — | 64 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
4 volcanoes within 200 km. Closest: Sibualbuali (124 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Sibualbuali | Stratovolcano | 1,819 m (5,968 ft) | Unknown | 124 km |
| Lubukraya | Stratovolcano | 1,862 m (6,109 ft) | Unknown | 133 km |
| Toba | Caldera | 2,157 m (7,077 ft) | Unknown | 139 km |
| Sorikmarapi | Stratovolcano | 2,145 m (7,037 ft) | 1986 | 192 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 77°F (25°C) | 8.5 in | Coldest |
| February | 78°F (26°C) | 6.4 in | |
| March | 79°F (26°C) | 7.8 in | |
| April | 79°F (26°C) | 8.2 in | |
| May | 79°F (26°C) | 6.7 in | Warmest |
| June | 79°F (26°C) | 5.3 in | |
| July | 78°F (26°C) | 5.2 in | Driest |
| August | 78°F (26°C) | 6.5 in | |
| September | 78°F (25°C) | 9.4 in | |
| October | 78°F (25°C) | 10.6 in | Wettest |
| November | 78°F (25°C) | 10.2 in | |
| December | 77°F (25°C) | 10.1 in |
Rantau Prapat has a seasonal temperature swing of 2°F / from 77°F in January to 79°F in May. Total annual precipitation is 94.9 inches, with October being the wettest month (10.6") and July the driest (5.2").