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Weather & Climate in Seria, Brunei
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Seria 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 129 sunny days per year, below the national average of 205. Annual precipitation totals 118.1 inches (wetter than the 38-inch national average). The city sits at an elevation of 20 feet.
Temperature
80°F Jan (26°C)
81°F Jul (27°C)
| Annual Average | 80.8°F |
| 50% above US avg | |
| January Average | 80°F (26°C) |
| July Average | 81°F (27°C) |
| Sunny Days | 129 days/yr |
Geography
| Elevation | 20 ft (6 m) |
| Area | 63.1 sq mi (163.3 km²) |
| Population Density | 477/sq mi |
| Coordinates | 4.6064°N, 114.3248°W |
| Timezone | Asia/Brunei |
Precipitation & Snow
Air Quality
Earthquake History
4 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.2.
| May 1, 2004 | 78 km SSW of Marudi, Malaysia | M5.2 | 121 km | 10 km |
| Feb 22, 1992 | 68 km N of Tutong, Brunei | M5.2 | 93 km | 40 km |
| Jun 30, 2005 | 63 km SSE of Lawas, Malaysia | M4.5 | 147 km | 25 km |
| Apr 19, 2005 | 90 km SSW of Marudi, Malaysia | M4.2 | 134 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 80°F (26°C) | 14.4 in | Coldest, Wettest |
| February | 80°F (27°C) | 7.1 in | |
| March | 81°F (27°C) | 6.7 in | Driest |
| April | 82°F (28°C) | 8.1 in | |
| May | 82°F (28°C) | 9.3 in | Warmest |
| June | 82°F (28°C) | 7.7 in | |
| July | 81°F (27°C) | 8.3 in | |
| August | 81°F (27°C) | 7.9 in | |
| September | 81°F (27°C) | 9.7 in | |
| October | 80°F (27°C) | 11.3 in | |
| November | 80°F (27°C) | 13.7 in | |
| December | 80°F (27°C) | 13.9 in |
Seria has a seasonal temperature swing of 2°F / from 80°F in January to 82°F in May. Total annual precipitation is 118.1 inches, with January being the wettest month (14.4") and March the driest (6.7").