Similan Islands surfForecast / Andaman Sea / Thailand

information circle16 Day Weather and Surf, issued 6 am Tuesday 26 May 2026 +07
Forecast update in hr  min  s Forecast update imminent
Similan Islands surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Similan Islands sea temperature is
30.2° C
(Which is slightly warmer than usual)

Best Forecast Surf Conditions for Similan Islands this week:

The most powerful waves expected at Similan Islands in the next 16 days are 3.0m 9s and forecast to arrive on Tuesday (Jun 02) at 7AM. Winds are predicted to be onshore at the time the swell arrives.

Wave TypeTime (+07) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 7AM (Tue 2nd Jun)10ft (3.0m) 9s

Table - best surf conditions forecast for Similan Islands over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Heavy rain (total 66mm), heaviest during Thu afternoon. Warm (max 29°C on Wed morning, min 25°C on Thu morning). Mainly fresh winds.

Days 4-6 Weather Summary

Heavy rain (total 69mm), heaviest during Sat afternoon. Warm (max 28°C on Fri morning, min 26°C on Fri afternoon). Mainly strong winds.

Tuesday
26
Wednesday
27
Thursday
28
Friday
29
Saturday
30
Sunday
31
Monday
1
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.7
WSW
7
1.5
WSW
7
1.4
WSW
7
0.6
SW
16
0.6
SW
15
0.6
SW
15
1.7
W
6
1.9
WSW
7
1.7
W
7
1.4
WSW
7
1.6
WSW
6
1.9
WSW
7
2.5
WSW
8
3
WSW
8
2.5
WSW
8
2.1
WSW
8
2.1
WSW
7
2.5
WSW
8
3
WSW
8
3
WSW
9
3
W
9
Wave Graph
Metric surfscale
Energy kJ
301
198
191
157
139
146
232
352
298
220
188
376
744
1186
871
522
456
765
1120
1288
1285
Wind (km/h)
20
WSW
25
W
25
W
25
W
25
W
30
W
30
WSW
35
W
35
W
30
WSW
40
WSW
35
W
30
W
35
W
40
WSW
40
WSW
35
WSW
40
WSW
35
WSW
40
WSW
40
WSW
cross-on
on
on
on
on
on
on
on
on
cross-on
on
on
on
on
on
on
on
on
cross-on
cross-on
on
High Tide
6:59PM1.63m
7:38AM1.84m
7:50PM1.66m
8:17AM1.94m
8:33PM1.69m
8:52AM2.01m
9:11PM1.72m
9:25AM2.07m
9:47PM1.75m
9:58AM2.10m
10:21PM1.75m
10:32AM2.11m
10:55PM1.74m
Low Tide
1:13PM0.72m
1:21AM0.55m
2:05PM0.60m
2:03AM0.50m
2:46PM0.49m
2:40AM0.45m
3:22PM0.39m
3:14AM0.40m
3:55PM0.32m
3:46AM0.37m
4:28PM0.27m
4:19AM0.36m
5:00PM0.26m
cloud
thunderstorm
thunderstorm
cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
mod rain
thunderstorm
mod rain
thunderstorm
mod rain
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:09
6:09
6:09
6:09
6:09
6:09
6:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:43
6:43
6:43
6:44
6:44
6:44
6:44
1
19
3
3
10
21
9
4
7
16
10
12
12
2
3
3
2
3
28
Temp °C
28
28
28
29
29
29
28
25
27
28
28
28
27
27
28
28
28
28
28
28
28
30
28
28
30
30
29
28
23
27
27
26
27
27
25
25
26
26
27
27
26
26
Swell 1
Height (m)
Direction
Period (s)
1.7
WSW
7
0.3
SW
16
0.3
SW
16
0.6
W
8
0.6
SW
15
0.6
SW
15
0.5
SW
14
0.5
SW
17
1.7
W
7
0.6
SW
15
0.6
SW
15
0.5
SW
14
0.4
SW
14
0.3
SW
14
0.3
SW
13
0.3
SW
13
0.3
SW
13
0.2
SSW
13
0.1
SW
17
0.1
SW
16
0.3
SW
16
Energy kJ
301
42
41
50
139
134
97
142
298
149
136
102
71
30
28
28
27
16
12
10
43
Swell 2
Height (m)
Direction
Period (s)
0.3
SW
13
0.3
SW
13
0.3
SW
13
0.6
SW
16
0.1
SW
20
0.3
SW
18
0.4
SW
13
0.6
SW
16
0.1
SW
15
Energy kJ
26
27
27
157
15
50
61
203
9
Swell 3
Height (m)
Direction
Period (s)
0.3
SW
16
0.3
SW
13
0.3
SW
13
Energy kJ
41
27
27
Wind waves
Height (m)
Direction
Period (s)
1.5
WSW
7
1.4
WSW
7
1.2
WSW
6
1.3
WSW
6
1.4
W
6
1.7
W
6
1.9
WSW
7
1.4
WSW
7
1.6
WSW
6
1.9
WSW
7
2.5
WSW
8
3
WSW
8
2.5
WSW
8
2.1
WSW
8
2.1
WSW
7
2.5
WSW
8
3
WSW
8
3
WSW
9
3
W
9
Energy kJ
198
191
123
126
146
232
352
220
188
376
744
1186
871
522
456
765
1120
1288
1285
Nearest Offshore or Glassy
Rating
(10 max)
4
2
2
2
3
2
4
3
4
4
2
4
2
2
2
4
4
3
3
3
2
Distance (km)
864
633
633
67
716
633
698
633
698
698
633
698
618
633
633
612
612
698
698
698
716
Best forecast wave conditions in Andaman Sea
Rating
(10 max)
2
Best forecast wave conditions in Thailand
Rating
(10 max)
2
Header Global
Rating
(10 max)
4
9
9
7
6
6
9
9
9
9
5
5
5
4
7
7
7
5
4
4
6
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
submit an eyeball surf report

Quick surf report for Similan Islands:

join our community of surf reporters

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 Similan Islands 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.


Information about the Similan Islands Surf forecast

The above surf forecast table for Similan Islands provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Similan Islands can be found by selecting the local surf guide option on the grey menu. Our Similan Islands surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Similan Islands) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Similan Islands may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Similan Islands is 107 km (66 miles) from Kathu. If you plan a holiday in Andaman Sea, look for hotels and other accommodation in Kathu. Kathu has rooms for a wide range of budgets as well as car hire and transport links.

Nearest locationNearest
Nearest locationNearest
Nearest locationNearest