Chaweng, Ko Samui satellite images 2018–2025: how it changed
8 yearly Sentinel-2 images of Chaweng, Ko Samui, Surat Thani, from 8 Dec 2017 to 16 Mar 2025. Green cover in true colour moved from 46% to 40% (-6 percentage points) across a 6 × 6 km box.
Before and after
20182025Drag the divider or use the arrow keys.
Year by year
8 Dec 2017 · cloud 16% · green 46% 
11 Feb 2019 · cloud 1% · green 41% 
23 Dec 2019 · cloud 6% · green 42% 
25 Feb 2021 · cloud 21% · green 35% 
16 Jan 2022 · cloud 4% · green 39% 
16 Jan 2023 · cloud 9% · green 39% 
15 Apr 2024 · cloud 5% · green 26% 16 Mar 2025 · cloud 3% · green 40%
Yearly facts
| Year | Acquired | Cloud cover | Green cover | Valid pixels |
|---|---|---|---|---|
| 2018 | 8 Dec 2017 | 16% | 46% | 100% |
| 2019 | 11 Feb 2019 | 1% | 41% | 100% |
| 2020 | 23 Dec 2019 | 6% | 42% | 100% |
| 2021 | 25 Feb 2021 | 21% | 35% | 100% |
| 2022 | 16 Jan 2022 | 4% | 39% | 100% |
| 2023 | 16 Jan 2023 | 9% | 39% | 100% |
| 2024 | 15 Apr 2024 | 5% | 26% | 100% |
| 2025 | 16 Mar 2025 | 3% | 40% | 100% |
Method and limits
- Sentinel-2 true colour at 10 m per pixel, so single houses are not visible.
- One clear dry-season acquisition per year; seasons and sun angle still differ slightly between years.
- Green cover is an RGB approximation of green-dominant pixels, not NDVI.
- Clouds, haze and shadows can remain in a scene even after selection.
Contains modified Copernicus Sentinel data, processed by MapScale.
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