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Weather & Climate in Lamasi, Indonesia
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Lamasi has a warm climate with an average annual temperature of 80°F (27°C). Winters average 81°F in January while summers reach 79°F in July / relatively mild seasonal variation. The area gets 346 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 102.9 inches (wetter than the 38-inch national average). The city sits at an elevation of 102 feet.
Temperature
81°F Jan (27°C)
79°F Jul (26°C)
| Annual Average | 80.0°F |
| 48% above US avg | |
| January Average | 81°F (27°C) |
| July Average | 79°F (26°C) |
| Sunny Days | 346 days/yr |
Geography
| Elevation | 102 ft (31 m) |
| Area | 114.4 sq mi (296.4 km²) |
| Population Density | 0/sq mi |
| Coordinates | -2.8166°N, 120.1763°W |
| Timezone | Asia/Makassar |
Precipitation & Snow
Air Quality
Earthquake History
177 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.2.
| Jan 14, 2021 | 32 km S of Mamuju, Indonesia | M6.2 | 144 km | 18 km |
| Feb 15, 2011 | 146 km SSE of Poso, Indonesia | M6.1 | 149 km | 16 km |
| Sep 28, 1997 | 28 km NNE of Parepare, Indonesia | M5.9 | 118 km | 33 km |
| Mar 28, 2020 | 73 km WSW of Poso, Indonesia | M5.9 | 123 km | 10 km |
| Jan 14, 2021 | 33 km S of Mamuju, Indonesia | M5.7 | 144 km | 18 km |
| Jul 24, 2025 | 69 km NNE of Masamba, Indonesia | M5.6 | 103 km | 10 km |
| Feb 8, 2015 | 60 km ENE of Mamuju, Indonesia | M5.6 | 99 km | 37 km |
| Jul 24, 2025 | 64 km S of Poso, Indonesia | M5.5 | 114 km | 10 km |
| Mar 24, 2019 | 58 km SSW of Poso, Indonesia | M5.5 | 112 km | 10 km |
| Feb 27, 2023 | 60 km WSW of Poso, Indonesia | M5.5 | 134 km | 39 km |
| Jun 3, 1997 | 88 km N of Palopo, Indonesia | M5.4 | 69 km | 33 km |
| Dec 7, 1994 | 7 km WNW of Rantepao, Indonesia | M5.3 | 41 km | 28 km |
| Jun 12, 1995 | 118 km SSE of Poso, Indonesia | M5.3 | 124 km | 64 km |
| May 9, 1990 | 25 km NW of Rantepao, Indonesia | M5.2 | 50 km | 33 km |
| Jan 14, 2021 | 37 km S of Mamuju, Indonesia | M5.2 | 138 km | 10 km |
| Jul 21, 2021 | 56 km W of Rantepao, Indonesia | M5.2 | 88 km | 13 km |
| Feb 24, 2009 | 45 km SSW of Poso, Indonesia | M5.1 | 126 km | 35 km |
| Feb 14, 2002 | 53 km WSW of Poso, Indonesia | M5.1 | 136 km | 19 km |
| Nov 10, 2001 | 39 km WSW of Poso, Indonesia | M5.1 | 144 km | 70 km |
| Dec 28, 1993 | 58 km SSE of Poso, Indonesia | M5.1 | 132 km | 61 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
2 tsunamis recorded within 500 km. Highest wave on record: 4.0 m (13 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1969 | MAKASSAR STRAIT | Earthquake | 4.0 m | 664 | 148 km |
| 1967 | MAKASSAR STRAIT | Earthquake | — | 71 | 138 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 81°F (27°C) | 10.9 in | Warmest |
| February | 77°F (25°C) | 10.5 in | |
| March | 77°F (25°C) | 12.2 in | |
| April | 77°F (25°C) | 14.6 in | Wettest |
| May | 77°F (25°C) | 12.5 in | |
| June | 77°F (25°C) | 9.7 in | |
| July | 79°F (26°C) | 7.3 in | |
| August | 76°F (25°C) | 6.2 in | Coldest |
| September | 77°F (25°C) | 4.9 in | Driest |
| October | 78°F (26°C) | 5.4 in | |
| November | 78°F (25°C) | 8.3 in | |
| December | 77°F (25°C) | 11.6 in |
Lamasi has a seasonal temperature swing of 5°F / from 76°F in August to 81°F in January. Total annual precipitation is 114.1 inches, with April being the wettest month (14.6") and September the driest (4.9").