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Weather & Climate in Kampong Ayer, Brunei
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Kampong Ayer has a warm climate with an average annual temperature of 81°F (27°C). Winters average 80°F in January while summers reach 81°F in July / relatively mild seasonal variation. The area gets 91 sunny days per year, below the national average of 205. Annual precipitation totals 146.1 inches (wetter than the 38-inch national average). The city sits at an elevation of 3 feet.
Temperature
80°F Jan (27°C)
81°F Jul (27°C)
| Annual Average | 81.2°F |
| 50% above US avg | |
| January Average | 80°F (27°C) |
| July Average | 81°F (27°C) |
| Sunny Days | 91 days/yr |
Geography
| Elevation | 3 ft (1 m) |
| Area | 52.9 sq mi (137.1 km²) |
| Population Density | 194/sq mi |
| Coordinates | 4.8827°N, 114.9449°W |
| Timezone | Asia/Pontianak |
Precipitation & Snow
Air Quality
Earthquake History
2 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.2.
| Feb 22, 1992 | 68 km N of Tutong, Brunei | M5.2 | 74 km | 40 km |
| Jun 30, 2005 | 63 km SSE of Lawas, Malaysia | M4.5 | 97 km | 25 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 80°F (27°C) | 14.8 in | Coldest |
| February | 80°F (27°C) | 8.9 in | |
| March | 81°F (27°C) | 7.9 in | Driest |
| April | 82°F (28°C) | 10.5 in | Warmest |
| May | 82°F (28°C) | 12.2 in | |
| June | 82°F (28°C) | 10.5 in | |
| July | 81°F (27°C) | 10.5 in | |
| August | 82°F (28°C) | 11.1 in | |
| September | 81°F (27°C) | 13.6 in | |
| October | 81°F (27°C) | 15.0 in | |
| November | 81°F (27°C) | 15.8 in | Wettest |
| December | 81°F (27°C) | 15.4 in |
Kampong Ayer has a seasonal temperature swing of 2°F / from 80°F in January to 82°F in April. Total annual precipitation is 146.1 inches, with November being the wettest month (15.8") and March the driest (7.9").