Slide the sun through the year: when it sets, when the golden hour starts and where on the horizon it goes down, seen from the seven west-coast beaches that face it.
21° south of due west: face the sea and look well to the left. It goes down over the open gulf.
February This month
18:29sunset
Golden hour from
18:01
Last light
18:51
Sets at
257°
13° south of due west: face the sea and look a little to the left.
March This month
18:31sunset
Golden hour from
18:04
Last light
18:52
Sets at
268°
Almost due west: straight out to sea. The sun drops toward the Ang Thong islands.
April This month
18:30sunset
Golden hour from
18:02
Last light
18:51
Sets at
280°
10° north of due west: face the sea and look a little to the right. The sun drops toward the Ang Thong islands.
May This month
18:33sunset
Golden hour from
18:04
Last light
18:55
Sets at
289°
19° north of due west: face the sea and look well to the right. The sun drops toward the Ang Thong islands.
June This month
18:40sunset
Golden hour from
18:10
Last light
19:03
Sets at
294°
24° north of due west: face the sea and look well to the right. The sun drops toward the Ang Thong islands.
July This month
18:45sunset
Golden hour from
18:15
Last light
19:07
Sets at
292°
22° north of due west: face the sea and look well to the right. The sun drops toward the Ang Thong islands.
August This month
18:38sunset
Golden hour from
18:09
Last light
19:00
Sets at
284°
14° north of due west: face the sea and look a little to the right. The sun drops toward the Ang Thong islands.
September This month
18:21sunset
Golden hour from
17:53
Last light
18:42
Sets at
273°
Almost due west: straight out to sea. The sun drops toward the Ang Thong islands.
October This month
18:03sunset
Golden hour from
17:35
Last light
18:24
Sets at
262°
8° south of due west: face the sea and look a little to the left.
November This month
17:56sunset
Golden hour from
17:26
Last light
18:18
Sets at
251°
19° south of due west: face the sea and look well to the left. It goes down over the open gulf.
December This month
18:03sunset
Golden hour from
17:32
Last light
18:25
Sets at
247°
23° south of due west: face the sea and look well to the left. It goes down over the open gulf.
Computed, not observed: a solar-position model run for the island, accurate to about a minute. The horizon is drawn as seen from the west coast.
The west coast
Where it goes down
The sun does not set due west most of the year. It swings south of west around the December solstice and north of it around June, toward the Ang Thong islands. Pick a month above and the lines swing with it.
Lines run from each beach toward the setting sun in the month you picked. Pins number the beaches north to south.
Ang Thong islands, off the map
Mid-year, the sun drops toward Ang Thong. From most of this coast the marine park's islands sit on the north-west horizon, where the March to September sunsets go down.November to January, it sets over open water to the south-west, with nothing but sea between you and the mainland far off.
Seven beaches
The beaches lined up to watch it
These are every beach on this coastline that actually faces the sunset, run north to south. A calm sea and an open horizon do the rest; none of them needs a bar or a viewing deck to work at dusk.
A working shore lined with anchored longtail boats and fishermen's houses rather than sunbeds, so the sunset falls behind boat masts and drying nets instead of an empty view.
The island's ferry town, where the piers that carry all its traffic to the mainland double as the best vantage point once the boats stop running for the evening and the working waterfront empties out.
A quieter, less built-up stretch where a shallow reef sits just offshore, so the same low light that colours the sky also catches the water over it at low tide.
A long beach that shelves out so gradually it draws families for the swimming by day, then empties enough by evening that the sunset over its flat water goes largely unwatched.
Its name translates from Thai as beautiful cliff, for the rocky headlands that frame the water here and turn the sunset into a view rather than just a light show.
A quiet, coarse-sand beach with no beach road of bars behind it, where wading birds work the tide flats and the sunset closes out an already slow stretch of coast.
Sunset moves by almost an hour across the year, from 17:56 in November to 18:45 in July. Each bar is one evening: golden hour, the sunset dot, then the last light before dark.
17:3018:0018:3019:0019:30
Jan18:18This month
Feb18:29This month
Mar18:31This month
Apr18:30This month
May18:33This month
Jun18:40This month
Jul18:45This month
Aug18:38This month
Sep18:21This month
Oct18:03This month
Nov17:56This month
Dec18:03This month
Golden hour, sun under 6° highSunsetLast light, until the sun is 6° below
Earliest sunset
17:56
November
Latest sunset
18:45
July
Swing on the horizon
247-294°
December to June
FAQ
Questions about the sunset
Are the sunset times on this page exact?
No. They come from a solar-position approximation, accurate to about a minute at this latitude, not from an observation on the beach. Close enough to plan an evening by, not to bet on the exact instant.
Why does the sun set in a different spot on the horizon depending on the month?
The sun's setting point swings along the horizon across the year rather than staying fixed due west. It reaches its southern and northern extremes around the two solstices and only crosses due west near the equinoxes.
Do all the beaches on this page really face the sunset?
Yes. They are pulled from our own beach survey by the same west-facing orientation, not chosen for having a bar or a view deck, so a beach with neither can still be on the list.
Can you swim at all of these beaches at sunset?
No. A few, like the ferry town waterfront and the working fishing shore, are not swimming beaches at all. Others shelve gently and suit an evening swim; check the beach's own page before you go.
What time is sunset on Koh Samui?
It shifts through the year. This page computes the time from a solar-position model, accurate to about a minute, so check the month row for your travel date rather than relying on one fixed time.
31Oct
Tonight, Saturday 31 October
17:58sunset
Golden hour
17:29
Last light
18:19
Sets at
256°
14° south of due west: face the sea and look a little to the left.
Tonight's pick: Taling Ngam Beach. Of the seven, it faces closest to where the sun goes down tonight, with no headland in the way.