Sembawang Air Base (WSAG)
Medium airport · Sembawang, North West, Singapore
Airport data
| Name | Sembawang Air Base |
|---|---|
| ICAO | WSAG |
| Elevation | 86 ft (26 m) above mean sea level |
| Coordinates | N 1°25'31" E 103°48'47" 1.42526, 103.81300 |
| Location | Sembawang, North West, Singapore |
| Scheduled service | No |
Runways
| Runway | Length | Width | Surface | Lighted |
|---|---|---|---|---|
| 04/22 | 6,255 ft (1907 m) | 100 ft | ASP | No |
| 05/23 | 3,400 ft (1036 m) | 100 ft | ASP | Yes |
Sembawang Air Base at a glance
Sembawang Air Base is a medium airport in Sembawang, North West, Singapore. The field elevation of 86 ft (26 m) is the number every arriving pilot dials against QNH — circuit heights and initial approach altitudes at WSAG are all figured from it. There is no scheduled airline service listed here — typical traffic is general aviation, training and local operations.
Of its 2 runways, the longest — 04/22 — offers 6,255 ft (1907 m) of asp surface, without recorded lighting. Runway numbers give magnetic orientation: runway 04 points roughly 40° magnetic.
For the weather side of planning, the live METAR and TAF page for WSAG shows the current observation decoded line by line — wind on an instrument dial, visibility, cloud layers and the resulting flight rules — refreshed continuously from official sources.
Nearest airports to Sembawang Air Base
Distances are great-circle, measured from the field reference point — planning distances along airways or roads will run longer.
| Airport | Code | Distance |
|---|---|---|
| Seletar Airport | WSSL | 6 km (3 NM) |
| Tengah Air Base | WSAT | 12 km (6 NM) |
| Paya Lebar Air Base | WSAP | 13 km (7 NM) |
| Singapore Changi Airport | WSSS | 22 km (12 NM) |
| Changi Air Base (East) | WSAC | 24 km (13 NM) |
Flight-planning notes for Sembawang Air Base
Density altitude is the quiet performance-killer at any field: on a hot day the 86 ft field elevation of Sembawang Air Base can translate into a substantially higher density altitude, stretching take-off rolls and flattening climb rates — run the numbers rather than trusting the feel of a standard day. Expect published instrument procedures, controlled airspace and clearance requirements; slots and handling may apply to general aviation traffic.
This entry is one of 6 airports and airfields we list for Singapore — the country index on the airports hub links the rest. Coordinates above are given in both DMS and decimal degrees so they can go straight into a GPS, a flight planner or a chart plot without conversion.
Where this data comes from
The reference layer behind this page builds on the OurAirports dataset — a public-domain, community-maintained register of the world's airports that many flight planners and apps rely on — with equity records preserved from documented historical listings where the dataset is silent. Figures are carried as published: elevations as surveyed, coordinates as filed, runway dimensions as recorded. Nothing is estimated to fill a gap, and the whole layer regenerates from source on every site build, so corrections upstream arrive here automatically.
Frequently asked questions about Sembawang Air Base
What is the ICAO code of Sembawang Air Base?
The ICAO identifier of Sembawang Air Base is WSAG, and it has no IATA code assigned. The ICAO code is the one used in flight plans, METAR reports and aeronautical charts.
How high is Sembawang Air Base above sea level?
Sembawang Air Base sits at an elevation of 86 feet (26 metres) above mean sea level. Field elevation is the reference for pattern altitudes and for setting the altimeter on the ground.
Where exactly is Sembawang Air Base located?
The airport lies at 1.4253, 103.8130 — in Sembawang, North West, Singapore, in the northern hemisphere. The closest listed field is Seletar Airport, about 6 km away.
Does WSAG publish METAR weather reports?
Where the station reports, the current METAR and TAF for WSAG appear on its live weather page on this site, refreshed continuously from the US NWS Aviation Weather Center feed.
How long is the runway at Sembawang Air Base?
Sembawang Air Base has 2 runways. The longest, 04/22, measures 6,255 ft (1907 m) with a ASP surface.