Satellite: Sentinel-2 cloudless 2016 by EOX (CC BY 4.0). Outline and points © OpenStreetMap contributors / Natural Earth. North up.
In numbers
11.0km²
Area
13km
Coastline
80m
Highest point
0
People
30°C
Warmest sea
December
567km
To the mainland
When to go to Jaco
Best for the beach from July to October.
The sea is warmest in December (30 °C) and coolest in August (27 °C). You can swim comfortably all year (21 °C or more).
Averages 1991–2020. Sea: NOAA OISST, the water within 35 km of the coast. Air, rain and sun: NASA POWER. Best months weigh warm afternoons (23–30 °C), sea of 24 °C or more and few wet days.
Island in eastern Indian Ocean
Jaco is an island in Timor Leste. It covers 11.0 km², with 13 km of coastline. Its highest point rises to 80 m. Nobody lives on it. The nearest mainland is 567 km away.
Getting there
- Baucau Airport (BCH)nearest airport with scheduled flights · 102 km in a straight line
- 567 km from the mainlanddistance to the nearest continental coast
- From July to Octoberbest months to go (from 30 years of averages)
Plan the trip
Ferries, stays and things to do
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On the island
What you find on Jaco.
- 9beachesPraia and 8 more
Counted in OpenStreetMap, the map anyone can edit, inside the island's outline. A low number may only mean nobody has mapped it yet.
Cross-checked with our atlases
Jaco in our other atlases
Everything Coastya, Peakyas, Lakeyas and Cascadyas know about what lies inside Jaco, each with its own numbers.
1mountainPeakyas
The shape of the land.
On average the island stands 42 m above the sea. 100 % of it is below 200 m.
- 70 %0–50 m
- 30 %50–200 m
Share of the island's area in each altitude band, from the Copernicus DEM (30 m, read at 30–240 m on large islands).
Size, for real
Next to islands you may know.
5 km
All outlines drawn to the same scale (Natural Earth and OpenStreetMap).
Month by month
The weather on the island.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Afternoon high (°C) | 29 | 29 | 29 | 29 | 28 | 27 | 26 | 26 | 27 | 28 | 29 | 30 |
| Night low (°C) | 28 | 28 | 28 | 28 | 28 | 26 | 26 | 25 | 26 | 27 | 28 | 29 |
| Sea (°C) | 30 | 29 | 29 | 29 | 28 | 28 | 27 | 27 | 27 | 28 | 30 | 30 |
| Rain (mm) | 207 | 161 | 129 | 78 | 68 | 40 | 17 | 6 | 7 | 12 | 43 | 151 |
| Wet days | 24 | 22 | 20 | 16 | 13 | 7 | 4 | 1 | 2 | 3 | 9 | 21 |
| Sun h/day | 6.8 | 7.6 | 7.1 | 7.6 | 7.1 | 6.9 | 7.7 | 9.0 | 9.8 | 9.7 | 9.2 | 7.2 |
| Wind (km/h) | 18 | 18 | 14 | 16 | 23 | 25 | 25 | 22 | 18 | 15 | 12 | 13 |
Averages 1991–2020 for the ~55 km NASA POWER cell over the island; the sea from NOAA OISST.
Recent years
Warmer and cooler years at sea.
Each month's sea temperature compared with its 1991–2020 average, in degrees.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2020 | +0.6 | +0.8 | +0.5 | +0.5 | +0.1 | +0.1 | +0.3 | +0.6 | +0.4 | +0.4 | +0.6 | +0.2 |
| 2021 | +0.3 | −0.1 | +0.4 | −0.1 | +0.1 | +0.4 | +0.6 | +0.8 | +0.7 | +0.9 | +0.3 | +0.3 |
| 2022 | −0.2 | −0.2 | +0.2 | +0.6 | +1.0 | +1.1 | +0.9 | +0.7 | +0.9 | +1.1 | +0.5 | +0.1 |
| 2023 | −0.1 | −0.2 | +0.1 | ±0.0 | +0.2 | +0.2 | +0.7 | +0.4 | −0.3 | −0.2 | −0.1 | −0.1 |
| 2024 | +0.2 | +0.1 | +0.5 | +0.4 | +0.4 | +0.4 | +0.5 | +0.3 | +0.4 | +0.5 | +0.4 | −0.1 |
| 2025 | +0.8 | +0.4 | +0.8 | +0.5 | +0.4 | +0.5 | +0.5 | +0.4 | +0.3 | +0.3 | −0.2 | −0.3 |
+1 warmer than usual −1 cooler than usual
Photos
Seen by visitors.
Nearby
More islands nearby.
Wetar Island
Indonesia2,622 km²493 m135 km away
Atauro
Timor Leste140 km²975 m193 km away
Damar IslandIndonesia193 km²868 m202 km away
Alor IslandIndonesia2,123 km²875 m285 km away
Babar IslandIndonesia626 km²833 m270 km away
TimorIndonesia30,777 km²2,963 m356 km away
Pantar IslandIndonesia733 km²862 m351 km awayAbout these numbers
| Names, area, population | Wikidata (Q960906) · CC0 |
|---|---|
| Outline | © OpenStreetMap contributors · ODbL |
| Sea temperature | NOAA OISST v2.1 · 1991–2020 |
| Climate | NASA POWER · 1991–2020 |
| Relief, 3D model | Copernicus DEM GLO-30 · © DLR e.V., © Airbus Defence and Space GmbH, Copernicus/ESA |
| Beaches, ports, lighthouses, trails | © OpenStreetMap contributors · ODbL |
| Towns | GeoNames · CC BY 4.0 |
| Images | EOX Sentinel-2 cloudless 2016 · CC BY 4.0; Wikimedia Commons |
| Beaches, mountains, lakes and waterfalls | Peakyas — Wikidata · CC0; © OpenStreetMap contributors · ODbL; GeoNames · CC BY 4.0 |
Every figure is an average, an estimate or a count from a public dataset. Licences and methods: data sources.
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