Brunei Climate
This month in numbers
Brunei experienced its 12th warmest April on record, with an average temperature of 26.96°C, marking an anomaly of +1°C compared to the 1961–1990 baseline. Globally, April 2026 was the 2nd warmest April for land temperatures on record, with an anomaly of +1.1°C.
What changed
The three-month period from February to April 2026 saw Brunei record its 8th warmest such period on record, with an average temperature of 26.71°C, an anomaly of +1.2°C. This trend aligns with the global picture, as global land temperatures for the same three-month period also ranked as the 2nd warmest on record, with an anomaly of +1.2°C. Brunei's annual average temperature for 2025 was 27.35°C, making it the warmest year on record since 1941.
What’s driving change?
Brunei is currently in its inter-monsoon phase, which typically lasts until the end of May. This period has seen unusually hot and dry conditions, with April 2026 rainfall at 65.7 millimetres, approximately 70 percent lower than the normal monthly average of 242 millimetres. This dry spell, coupled with extreme heat, led to a significant increase in forest and bush fires in April. The Fire and Rescue Department reported 88 forest fires and 47 bush fires in April alone, damaging over 415 hectares of land since January. The current ENSO state is Neutral, with a weekly Niño 3.4 SST anomaly of +0.9°C. However, there is a strong forecast for El Niño to develop in the coming months, with a 79% probability for June-August and 87% for July-September. The ENSO tracker tracker provides more details.
Looking ahead
The evolving El Niño phase suggests a likelihood of warmer and drier conditions for Brunei in the coming months.
Generated by Gemini from climate data and web sources
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Data Sources
Data Sources for Brunei
Every figure on this page is sourced from official, openly published climate datasets. Anomalies are calculated against the 1961–1990 baseline (temperature) and 1991–2020 (rainfall, sunshine, frost) — see the Methodology & Sources page for the complete dataset list and update calendar.
FAQs
FAQs
How is the climate in Brunei changing?
Brunei is warming in line with the rest of the world. The page above shows the latest monthly temperature anomaly versus the 1961-1990 baseline, the long-term annual trend, and the region's rank in the historical record. The trend rate is shown as °C per decade in the headline panel; you can also see the warmest and coolest years on file.
Where does the climate data for Brunei come from?
Climate data for Brunei comes from Our World in Data, sourcing Copernicus ERA5 and HadCRUT5 (national temperature anomaly) and the Global Carbon Project via Our World in Data (CO₂ emissions), refreshed every month, when the upstream temperature and rainfall data are refreshed.
What is the climate baseline used on this page?
Anomalies on this page are calculated against the 1961-1990 climatological baseline, which is the standard reference period used by the Met Office, NOAA, IPCC and most national climate services. Some panels also show the source-native 1901-2000 (NOAA) or 1991-2020 (WMO) baselines for verification. See Methodology & Sources for the full reference.
Which areas does the Brunei climate data cover?
Temperature, rainfall and emissions data for Brunei Brunei climate profile with temperature anomalies, rainfall (CRU TS), warm/wet-season shift analysis, CO₂ emissions (Our World in Data) and electricity generation mix — all vs the 1961–1990 baseline..
How often is the Brunei climate update refreshed?
The Brunei climate update is refreshed monthly, typically a few days after the previous month closes and the upstream provider (Met Office HadUK-Grid, NOAA Climate at a Glance, Copernicus ERA5 or the Global Carbon Project) publishes its update. See the Climate Rankings for cross-region comparisons.