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Weather & Climate in Biak, Indonesia
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Biak has a warm climate with an average annual temperature of 79°F (26°C). Winters average 78°F in January while summers reach 78°F in July / relatively mild seasonal variation. The area gets 131 sunny days per year, below the national average of 205. Annual precipitation totals 113.0 inches (wetter than the 38-inch national average). The city sits at an elevation of 33 feet.
Temperature
78°F Jan (25°C)
78°F Jul (26°C)
| Annual Average | 78.7°F |
| 46% above US avg | |
| January Average | 78°F (25°C) |
| July Average | 78°F (26°C) |
| Sunny Days | 131 days/yr |
Geography
| Elevation | 33 ft (10 m) |
| Area | 3,923.2 sq mi (10,161.1 km²) |
| Population Density | 11/sq mi |
| Coordinates | -1.1767°N, 136.0820°W |
| Timezone | Asia/Jayapura |
Precipitation & Snow
Air Quality
Earthquake History
711 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M8.1.
| Feb 17, 1996 | 1996 Biak, Indonesia Earthquake | M8.1 | 102 km | 33 km |
| Jun 16, 2010 | 121 km SSE of Biak, Indonesia | M7.0 | 122 km | 18 km |
| Jun 16, 2010 | 135 km SSE of Biak, Indonesia | M6.6 | 136 km | 11 km |
| Feb 17, 1996 | 32 km NNE of Biak, Indonesia | M6.5 | 33 km | 32 km |
| Feb 17, 1996 | 67 km NNW of Insrom, Indonesia | M6.5 | 73 km | 19 km |
| Feb 18, 1996 | 46 km ESE of Biak, Indonesia | M6.4 | 46 km | 10 km |
| Nov 20, 1994 | 92 km S of Biak, Indonesia | M6.3 | 93 km | 16 km |
| Jun 26, 2011 | 146 km SSE of Biak, Indonesia | M6.3 | 148 km | 17 km |
| Feb 24, 1996 | 144 km ENE of Biak, Indonesia | M6.2 | 145 km | 33 km |
| Jun 16, 2010 | 147 km SSE of Biak, Indonesia | M6.2 | 148 km | 13 km |
| Feb 17, 1996 | Biak region, Indonesia | M6.0 | 68 km | 33 km |
| Jan 22, 2007 | 132 km NE of Nabire, Indonesia | M5.9 | 150 km | 35 km |
| Feb 18, 1996 | 70 km NNW of Insrom, Indonesia | M5.9 | 76 km | 33 km |
| May 26, 2015 | 96 km NNW of Insrom, Indonesia | M5.8 | 102 km | 15 km |
| Feb 17, 1996 | 76 km E of Biak, Indonesia | M5.8 | 76 km | 33 km |
| Mar 22, 1997 | 112 km ENE of Biak, Indonesia | M5.7 | 113 km | 10 km |
| Mar 3, 1996 | 72 km NE of Biak, Indonesia | M5.7 | 73 km | 33 km |
| Feb 17, 1996 | 28 km NNE of Insrom, Indonesia | M5.7 | 31 km | 33 km |
| May 15, 1996 | 58 km NNW of Insrom, Indonesia | M5.7 | 64 km | 33 km |
| Jul 16, 2012 | 108 km E of Biak, Indonesia | M5.6 | 109 km | 13 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
5 tsunamis recorded within 500 km. Highest wave on record: 7.7 m (25 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1996 | IRIAN JAYA | Eruption + Earthquake | 7.7 m | 164 | 102 km |
| 1864 | NW. IRIAN JAYA | Earthquake | 3.0 m | 250 | 122 km |
| 1979 | IRIAN JAYA | Earthquake | 2.0 m | 115 | 56 km |
| 1957 | NW. IRIAN JAYA | Earthquake | 1.8 m | — | 108 km |
| 1914 | NW. IRIAN JAYA | Earthquake | 0.1 m | — | 120 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 78°F (25°C) | 10.1 in | Coldest |
| February | 78°F (25°C) | 10.0 in | |
| March | 79°F (26°C) | 10.5 in | |
| April | 79°F (26°C) | 9.1 in | |
| May | 79°F (26°C) | 9.8 in | Warmest |
| June | 79°F (26°C) | 8.6 in | |
| July | 78°F (26°C) | 10.6 in | Wettest |
| August | 79°F (26°C) | 9.7 in | |
| September | 79°F (26°C) | 8.5 in | |
| October | 79°F (26°C) | 8.5 in | |
| November | 79°F (26°C) | 7.8 in | Driest |
| December | 78°F (26°C) | 9.7 in |
Biak has a seasonal temperature swing of 2°F / from 78°F in January to 79°F in May. Total annual precipitation is 113.0 inches, with July being the wettest month (10.6") and November the driest (7.8").