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Surf Forecasts

Ko Samui surfForecast / Gulf of Thailand / Thailand

information circle48hr Weather and Surf, issued 6 am Saturday 19 Apr 2025 +07
Forecast update in hr  min  s Forecast update imminent
Ko Samui surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Ko Samui sea temperature is
30.5° C
 (Which is slightly warmer than usual)

How big are the waves at Ko Samui today?

The current surf forecast for Ko Samui at 9AM is: 0.1m 4s primary swell from a East direction (forecast issued at 06:00am April 19). The wind direction is predicted to be glassy.

Time (+07) & DateWave HeightWave Period
Morning (19 Apr)0.5ft (0.1m)4s
Afternoon (19 Apr)0.5ft (0.1m)4s
Evening (19 Apr)0.5ft (0.1m)2s

Table - waves today at Ko Samui. (Swell directed towards the surf break)

Hourly12 Days
Gulf of Thailand Surf
Print Surf Table
Updates in  hr  min  s Forecast update imminent 
Saturday
19
Sunday
20
Monday
21
Tuesday
22
Wednesday
23
Thursday
24
Friday
25
Saturday
26
4 AM7 AM10 AM1 PM4 PM7 PM10 PM1 AM4 AM7 AM10 AM1 PM4 PM7 PM10 PM1 AM4 AM7 AM10 AM1 PM4 PM7 PM10 PM1 AM4 AM7 AM10 AM1 PM4 PM7 PM10 PM1 AM4 AM7 AM10 AM1 PM4 PM7 PM10 PM1 AM4 AM7 AM10 AM1 PM4 PM7 PM10 PM1 AM4 AM7 AM10 AM1 PM4 PM7 PM10 PM1 AM4 AM7 AM10 AM1 PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.1
E
0.1
E
0.1
E
0.1
E
0.1
E
0.1
SE
0.1
SE
0.2
SSE
0.2
SSE
0.2
SSE
0.2
SSE
0.2
SSE
0.3
SE
0.2
ESE
0.2
SSE
0.2
SSE
0.2
E
0.2
E
0.1
E
0.1
E
0.1
SE
0.1
E
0.2
ESE
0.2
ESE
0.1
SE
0.1
SE
—
0.1
SE
0.1
SE
0.1
SE
0.1
SE
0.1
E
0.1
E
0.1
E
0.1
E
0.1
E
0.1
E
0.1
E
0.1
E
0.1
E
0.1
E
0.1
E
0.1
E
0.1
E
0.1
E
0.1
E
0.1
E
0.1
E
0.2
S
0.1
E
0.2
SSE
0.1
SE
0.1
SE
0.1
N
0.1
S
0.1
E
0.1
E
0.1
SE
0.1
SE
0.2
ESE
Period(s) (?)44444222222222224443322223-332244444555566555555263332366665
Wave
Graph
(?)Metric surfscale
Energy (?)000000001111100011000000000000000000000011111000011000011113
Wind
(km/h)
5
NW
0
SSE
5
SSW
5
E
10
ESE
10
SE
10
SE
10
SSE
15
SSE
15
S
15
S
10
SSE
15
SE
15
SE
15
SSE
15
SSE
15
S
10
SSW
5
SSE
5
ESE
10
E
15
E
20
ESE
15
SE
10
SSE
10
S
10
SSW
5
SSW
10
ESE
15
ESE
15
SSE
20
S
15
SW
15
SW
15
W
15
WNW
5
NE
5
SSW
15
WSW
15
WNW
20
WSW
20
W
20
WSW
10
W
5
SE
15
SSE
20
SW
5
SW
10
SW
20
WSW
20
W
15
WNW
5
NE
10
SE
15
S
20
S
15
WSW
15
WSW
15
WNW
10
NW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
glassglassglassglassononcross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		ononcross-
on		cross-
on		crosscrosscross-
on		ononononcross-
on		cross-
on		cross-
on		crossglassononcross-
on		cross-
on		cross-
off		cross-
off		cross-
off		offcross-
on		crosscross-
off		offcross-
off		cross-
off		cross-
off		offcross-
on		cross-
on		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		offglassoncross-
on		crosscross-
off		cross-
off		offcross-
off
High Tide
/ height (m)
2:24AM
1.29
3:06AM
1.29
3:51AM
1.28
4:37AM
1.25
5:26AM
1.19
6:20AM
1.08
7:24AM
0.93
12:07AM
0.71
8:54AM
0.74
Low Tide
/ height (m)
12:40PM
0.15
1:48PM
0.13
2:47PM
0.11
3:32PM
0.11
4:05PM
0.15
4:23PM
0.24
4:20PM
0.37
4:15AM
0.67
Saturday
19
Sunday
20
Monday
21
Tuesday
22
Wednesday
23
Thursday
24
Friday
25
Saturday
26
Sunrise-6:07-------6:07-------6:07-------6:05-------6:05-------6:05-------6:05-------6:05--
Sunset----6:29-------6:30-------6:30-------6:30-------6:30-------6:30-------6:30-------
part cloudclearclearthunderstorm clearclearthunderstorm thunderstorm clearpart cloudpart cloudclearpart cloudclearclearclearpart cloudpart cloudclearclearclearclearclearclearclearpart cloudpart cloudclearclearclearclearpart cloudpart cloudclearclearclearclearclearclearpart cloudthunderstorm thunderstorm part cloudpart cloudclearclearclearthunderstorm part cloudthunderstorm part cloudpart cloudpart cloudthunderstorm thunderstorm part cloudpart cloudpart cloudpart cloudpart cloud
Rain (mm)
---2--31--------------------------------11-----1-2---11-----
Temp. °C292929293030292929292929292929292929292929292929292928282929292928282929293030292828282829293029292828282929292929282828
Feels °C (?)343534333433323332323233313131313133333332313031323332333331313131313231333432313029303133313233333029303332313132303032
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
<span class="translation_missing" title="translation missing: en.leaflet.map_placeholder_alt">Map Placeholder Alt</span>

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Ko Samui surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.

View detailed surf forecast for Ko Samui at:
surf-forecast.com

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