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Weather & Climate in Sasi, Indonesia
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Sasi has a warm climate with an average annual temperature of 77°F (25°C). Winters average 76°F in January while summers reach 74°F in July / relatively mild seasonal variation. The area gets 347 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 40.2 inches. The city sits at an elevation of 1,250 feet.
Temperature
76°F Jan (25°C)
74°F Jul (23°C)
| Annual Average | 76.9°F |
| 42% above US avg | |
| January Average | 76°F (25°C) |
| July Average | 74°F (23°C) |
| Sunny Days | 347 days/yr |
Geography
| Elevation | 1,250 ft (381 m) |
| Area | 1,507.9 sq mi (3,905.5 km²) |
| Population Density | 0/sq mi |
| Coordinates | -9.4992°N, 124.4928°W |
| Timezone | Asia/Makassar |
Precipitation & Snow
Air Quality
Earthquake History
822 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.9.
| May 14, 1995 | 27 km NNW of Maubara, Timor Leste | M6.9 | 143 km | 11 km |
| Dec 5, 1995 | 25 km WNW of Atambua, Indonesia | M6.4 | 56 km | 33 km |
| Jan 17, 1997 | 81 km NNW of Naisano Dua, Indonesia | M6.2 | 124 km | 111 km |
| Jun 15, 2015 | 47 km S of Suai, Timor Leste | M5.8 | 88 km | 20 km |
| Jan 15, 2020 | Timor region, Indonesia | M5.7 | 107 km | 10 km |
| Feb 11, 1992 | 16 km SSW of Atambua, Indonesia | M5.7 | 47 km | 27 km |
| Sep 18, 1995 | 74 km WNW of Pante Makasar, Timor Leste | M5.7 | 103 km | 33 km |
| Jan 28, 2009 | 38 km NW of Pante Makasar, Timor Leste | M5.7 | 73 km | 66 km |
| Jul 25, 2023 | 53 km WNW of Pante Makasar, Timor Leste | M5.6 | 80 km | 88 km |
| Mar 3, 2016 | 50 km S of Suai, Timor Leste | M5.6 | 95 km | 30 km |
| Dec 14, 2009 | 16 km NNE of Kupang, Indonesia | M5.5 | 109 km | 46 km |
| Jan 10, 1990 | 25 km ENE of Kupang, Indonesia | M5.5 | 98 km | 33 km |
| Jul 18, 2005 | 7 km SW of Soe, Indonesia | M5.5 | 54 km | 10 km |
| Dec 29, 1992 | 41 km NE of Naisano Dua, Indonesia | M5.5 | 60 km | 95 km |
| May 20, 1994 | 67 km NW of Maubara, Timor Leste | M5.5 | 149 km | 25 km |
| Feb 10, 2014 | 87 km WNW of Maubara, Timor Leste | M5.5 | 144 km | 19 km |
| Nov 18, 2013 | 20 km NE of Kupang, Indonesia | M5.4 | 102 km | 29 km |
| Oct 31, 1990 | 68 km NW of Pante Makasar, Timor Leste | M5.4 | 102 km | 76 km |
| Mar 3, 2016 | 13 km SW of Suai, Timor Leste | M5.4 | 77 km | 20 km |
| Aug 31, 2023 | 19 km NE of Naisano Dua, Indonesia | M5.4 | 65 km | 47 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
1 hurricane (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 1.
| Year | Name | Category | Max Wind | Closest |
| 2017 | Frances | Category 1 | 81 mph | 283 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
3 tsunamis recorded within 500 km. Highest wave on record: 9.0 m (30 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1979 | LOMBLEN ISLAND [LEMBATA] | Meteorological | 9.0 m | 1,239 | 148 km |
| 1995 | TIMOR SEA | Eruption + Earthquake | 4.0 m | 11 | 132 km |
| 1891 | TIMOR SEA | Earthquake | — | — | 78 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
4 volcanoes within 200 km. Closest: Sirung (117 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Sirung | Complex | 862 m (2,828 ft) | 2015 | 117 km |
| Iliwerung | Complex | 1,018 m (3,340 ft) | 2013 | 148 km |
| Ililabalekan | Stratovolcano | 1,018 m (3,340 ft) | Unknown | 162 km |
| Iliboleng | Stratovolcano | 1,659 m (5,443 ft) | 1993 | 187 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 76°F (25°C) | 10.4 in | Wettest |
| February | 76°F (25°C) | 9.2 in | |
| March | 77°F (25°C) | 7.8 in | |
| April | 77°F (25°C) | 4.0 in | |
| May | 76°F (25°C) | 2.5 in | |
| June | 75°F (24°C) | 1.1 in | |
| July | 74°F (23°C) | 0.9 in | |
| August | 74°F (23°C) | 0.3 in | Coldest |
| September | 75°F (24°C) | 0.2 in | Driest |
| October | 78°F (25°C) | 1.2 in | |
| November | 79°F (26°C) | 4.2 in | Warmest |
| December | 79°F (26°C) | 9.2 in |
Sasi has a seasonal temperature swing of 6°F / from 74°F in August to 79°F in November. Total annual precipitation is 51.0 inches, with January being the wettest month (10.4") and September the driest (0.2").