About BorneoSky

Last updated: 5 October 2026

What this is

BorneoSky shows live conditions across the island of Borneo in one place: fire hotspots detected by satellite, smoke, wind and weather forecasts, and links to each country’s official air-quality readings. It covers Sarawak, Sabah and Labuan in Malaysia, all four districts of Brunei Darussalam, and the five provinces of Kalimantan in Indonesia. The site is available in English, Bahasa Malaysia and Bahasa Indonesia.

The map shows the weather forecast, the wind and, from June to November (the haze season), the smoke forecast and fire hotspots; you choose the layers you want, or pick a quick selection. Every town has its own page, and the main pages are saved on your device so they still open when your connection drops.

The Alerts page says whom to call when your power or water goes out in Sarawak, Sabah, Labuan, Brunei and Kalimantan.

It also shows official outage notices: the notices of planned and short-notice power work that SESB, the electricity supplier in Sabah and Labuan, publishes on its own outage portal, which we read automatically.

It also shows notices from Sarawak Energy, the electricity supplier in Sarawak, about power interruptions and their repairs, which we read automatically from its public posts on X.

Weather warnings published by MetMalaysia (for Sarawak, Sabah and Labuan) are shown in their own words on the Alerts page, on the map and on the town pages, and on the front page when one is urgent. We read them automatically. We do not currently read or show weather warnings for Kalimantan.

The front page is Explore: the weather forecast, smoke forecast, sunrise and sunset and best day for more than 200 places people visit, this weekend’s weather and events, a calendar of festivals, sports meets and conferences in Sabah, Sarawak, Brunei and Kalimantan, and the public holidays and long weekends of Sabah, Sarawak, Labuan, Brunei and Indonesia. Each town page also lists the events and places to visit near it.

Why it exists

Conditions on Borneo don’t stop at borders, but the information does. Readings, fires and forecasts sit on separate portals in three countries and several formats. BorneoSky puts them on one page, labelled with where each figure comes from.

Measured, detected or forecast: how we label data

• Official readings (API, PSI, ISPU) are only ever shown when the government agency has measured and published them. We never estimate a reading. Where we don’t yet have permission to show readings, we say so and link to the official portal.
• Fire hotspots are satellite detections of heat. A detection is not a confirmed fire; it can also be a gas flare or another hot site.
• The smoke forecast, the wind forecast and the weather forecast are forecasts from computer models, always labelled as forecasts. They are not measurements, and the smoke forecast is not an official index. The wind is the model’s wind about 10 metres above the ground, shown on the map; it is not a reading from a weather station.
• Outage notices are published by the utility (SESB, for Sabah and Labuan) and read automatically by BorneoSky. Work can be postponed or run late, and notices do not cover faults: the absence of a notice never means there is no outage.
• Sarawak Energy notices are Sarawak Energy’s own public posts on X, read automatically by BorneoSky. Not every interruption is posted, a repair time is an estimate that can slip, and a post can be late or deleted: the absence of a notice never means there is no outage.
• Weather warnings are MetMalaysia’s own, read automatically by BorneoSky. A warning can be updated, extended or cancelled before we read it again, and no warning does not mean the weather is safe.
• On Explore, the best day is a ranking of the weather forecast (the day with the least daytime rain), not a promise. Holiday and event dates are compiled by BorneoSky from official announcements and can change; replacement days are worked out by us and marked as expected.

Where the information comes from

* Generated using Copernicus Atmosphere Monitoring Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the information it contains.

How often it updates

Hotspots and the weather forecast are checked every hour; the smoke and wind forecasts change when CAMS publishes a new model run, twice a day. Every page shows when its data was last updated.

Official outage notices are checked every hour. SESB itself updates its list once a day.

Sarawak Energy’s posts are checked every hour, and each stored notice is checked against X once a day, so that a deleted post is removed here too.

Weather warnings are checked every hour, so a new warning can appear here up to an hour after the agency issues it. The warnings list shows when they were last checked.

What this is not

BorneoSky is an independent site. It is not operated by, endorsed by or affiliated with any government agency in Malaysia, Brunei or Indonesia, and it is not an official advisory. For school closures, health warnings and official instructions, follow DOE Malaysia, MetMalaysia and NADMA; the Department of Environment, Parks and Recreation and the Ministry of Health in Brunei; and BMKG, KLHK and local authorities in Indonesia.

BorneoSky is not operated by, endorsed by or affiliated with SESB or any other utility. Outage notices are the utility’s own, and its name is used only to say where they come from.

BorneoSky is not operated by, endorsed by or affiliated with Sarawak Energy or X. Its notices are Sarawak Energy’s own, and the names are used only to say where they come from.

BorneoSky is not operated by, endorsed by or affiliated with MetMalaysia. Weather warnings are its own, and its name is used only to say where they come from.

Who runs it

BorneoSky is run by Syarikat Kawan Kita, a business that offers data processing services. It is registered in Malaysia with the Inland Revenue Board of Malaysia (Lembaga Hasil Dalam Negeri, LHDN), registration number 011503646250, owned by Llewelyn L., and based in Kuching, Sarawak, Malaysia.

Contact

[email protected]. Postal address: B424-Bt433, Lot 11054, Tower B2, Level 4, ICOM Square, Jalan Pending, 93450 Kuching, Sarawak, Malaysia. Corrections about a town, a boundary or a data label are especially welcome.