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Weather & Climate in Banjarmasin, Indonesia
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Banjarmasin has a warm climate with an average annual temperature of 81°F (27°C). Winters average 79°F in January while summers reach 80°F in July / relatively mild seasonal variation. The area gets 313 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 118.8 inches (wetter than the 38-inch national average). The city sits at an elevation of 26 feet.
Temperature
79°F Jan (26°C)
80°F Jul (27°C)
| Annual Average | 81.0°F |
| 50% above US avg | |
| January Average | 79°F (26°C) |
| July Average | 80°F (27°C) |
| Sunny Days | 313 days/yr |
Geography
| Elevation | 26 ft (8 m) |
| Area | 0.3 sq mi (0.7 km²) |
| Population Density | 2,348,796/sq mi |
| Coordinates | -3.3199°N, 114.5908°W |
| Timezone | Asia/Makassar |
Precipitation & Snow
Air Quality
Earthquake History
3 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.9.
| Feb 13, 2024 | 25 km NE of Martapura, Indonesia | M4.9 | 51 km | 14 km |
| Aug 5, 1998 | 36 km SSE of Barabai, Indonesia | M4.4 | 114 km | 33 km |
| Apr 6, 2016 | 21 km N of Amuntai, Indonesia | M4.1 | 142 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 79°F (26°C) | 12.8 in | Coldest, Wettest |
| February | 81°F (27°C) | 11.5 in | |
| March | 82°F (28°C) | 12.1 in | |
| April | 83°F (28°C) | 9.5 in | |
| May | 83°F (28°C) | 7.7 in | Warmest |
| June | 82°F (28°C) | 5.1 in | |
| July | 80°F (27°C) | 4.5 in | |
| August | 81°F (27°C) | 4.0 in | Driest |
| September | 82°F (28°C) | 4.1 in | |
| October | 83°F (28°C) | 5.4 in | |
| November | 82°F (28°C) | 9.4 in | |
| December | 81°F (27°C) | 12.5 in |
Banjarmasin has a seasonal temperature swing of 3°F / from 79°F in January to 83°F in May. Total annual precipitation is 98.8 inches, with January being the wettest month (12.8") and August the driest (4.0").