Thailand surfForecast / Simeulue Island / Indonesia

information circle48hr Weather and Surf, issued 12 am Monday 11 May 2026 WIB
Forecast update in hr  min  s Forecast update imminent
Thailand surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Thailand sea temperature is
30.5° C
(Which is slightly warmer than usual)

How big are the waves at Thailand today?

The current surf forecast for Thailand at 8AM is: 0.9m 14s primary swell from a Southwest direction and 0.4m 8s secondary swell from a South-southeast direction (forecast issued at 12:00am May 11). The wind direction is predicted to be glassy and the swell rating is 2.

Time (WIB) & DateWave HeightWave Period
Morning (11 May)3ft (0.9m)14s
Afternoon (11 May)3ft (0.9m)13s
Evening (11 May)2.5ft (0.8m)13s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Moderate rain (total 18mm), heaviest on Tue night. Warm (max 29°C on Mon morning, min 27°C on Tue night). Wind will be generally light.

Monday
11
Tuesday
12
Wednesday
13
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
Rating
(10 max)
2
2
2
2
1
1
1
1
3
3
3
3
3
3
3
4
3
2
1
3
3
3
3
2
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
0.9
SW
14
0.9
SW
14
0.9
SW
14
0.9
SW
13
0.9
SW
13
0.9
SW
13
0.8
SSW
13
0.8
SSW
13
0.8
SSW
13
1
SSW
14
0.7
SW
18
1.1
SW
15
1.2
SSW
14
1.4
SW
15
1.5
SSW
16
1.5
SSW
16
1.5
SSW
16
1.5
SSW
15
1.4
SSW
15
1.4
SSW
14
1.4
SSW
14
1.4
SSW
14
1.3
SSW
14
1.3
SSW
14
Wave Graph
Metric surfscale
Energy kJ
288
293
293
257
249
245
215
212
212
437
319
496
545
955
1126
1126
1098
1014
807
796
785
774
672
653
Wind (km/h)
5
SW
0
NNE
0
NW
5
ESE
5
SE
5
SE
10
SE
5
SE
5
S
5
SSW
5
SSW
5
SW
5
WSW
5
WSW
5
W
5
SSW
10
WSW
10
WSW
10
WSW
5
W
5
NW
0
WSW
5
W
10
W
glassy
glassy
glassy
glassy
cross
cross
cross
cross
glassy
glassy
glassy
glassy
glassy
cross-on
cross-on
glassy
on
cross-on
cross-on
glassy
glassy
glassy
glassy
cross-on
High Tide
1:58AM0.36m
1:18PM0.50m
3:01AM0.44m
2:27PM0.51m
3:42AM0.53m
3:24PM0.52m
Low Tide
6:36AM0.29m
8:30PM0.16m
8:30AM0.27m
9:09PM0.12m
9:40AM0.22m
9:44PM0.08m
part cloud
cloud
cloud
part cloud
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
thunderstorm
part cloud
part cloud
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
cloud
thunderstorm
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:24
6:24
6:24
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:37
6:37
6:37
1
5
4
2
3
1
2
3
Temp °C
28
28
28
28
29
29
29
28
28
28
28
29
29
29
29
29
27
28
28
28
29
29
28
27
33
33
33
33
33
33
33
32
32
32
33
34
34
33
33
34
31
31
32
32
33
34
32
30
Swell 1
Height (m)
Direction
Period (s)
0.9
SW
14
0.9
SW
14
0.9
SW
14
0.9
SW
13
0.9
SW
13
0.9
SW
13
0.8
SSW
13
0.8
SSW
13
0.8
SSW
13
1
SSW
14
0.8
SSW
15
1.1
SW
15
1.2
SSW
14
1.4
SW
15
1.5
SSW
16
1.5
SSW
16
1.5
SSW
16
1.5
SSW
15
1.4
SSW
15
1.4
SSW
14
1.4
SSW
14
1.4
SSW
14
1.3
SSW
14
1.3
SSW
14
Energy kJ
288
293
293
257
249
245
215
212
212
437
272
496
545
955
1126
1126
1098
1014
807
796
785
774
672
653
Swell 2
Height (m)
Direction
Period (s)
0.4
SSE
8
0.4
SSE
8
0.4
SSE
8
0.4
SSE
8
0.4
SSE
8
0.5
SW
16
0.5
SW
16
0.5
SW
16
0.6
SSW
16
0.5
SW
19
0.7
SW
12
0.7
SW
18
0.8
SSW
18
0.5
W
8
0.5
W
8
0.5
W
8
0.5
W
8
0.5
W
9
0.6
W
8
0.6
W
8
0.6
W
8
0.6
W
8
0.6
W
8
0.6
W
8
Energy kJ
23
22
22
22
24
127
127
127
171
173
147
319
390
29
29
29
29
39
52
51
49
48
45
44
Swell 3
Height (m)
Direction
Period (s)
0.3
WSW
7
0.3
WSW
7
0.3
WSW
7
0.3
WSW
7
0.3
WSW
7
0.4
SSE
9
0.4
SSE
8
0.4
SSW
19
0.4
SSW
20
0.4
WSW
8
0.7
SW
18
0.5
W
8
0.5
W
8
0.4
SSE
8
0.3
SSE
8
0.3
SSE
8
0.3
SSE
8
0.4
SSE
8
0.4
SSE
8
0.4
SSE
8
0.4
SSE
8
0.4
SSE
8
0.3
SSE
8
0.3
SSE
8
Energy kJ
9
9
9
9
9
25
24
148
149
22
319
30
29
22
13
13
13
21
20
20
21
21
13
13
Wind waves
Height (m)
Direction
Period (s)
Energy kJ
Nearest Offshore or Glassy
Rating
(10 max)
2
2
2
2
2
2
2
2
3
3
3
3
3
3
4
4
3
3
3
3
3
3
3
2
Distance (km)
0
0
0
0
14
14
14
14
0
0
0
0
0
118
14
0
118
118
118
0
0
0
0
118
Best forecast wave conditions in Simeulue Island
Rating
(10 max)
2
2
2
2
2
2
2
2
3
3
3
3
3
4
4
3
3
3
3
Best forecast wave conditions in Indonesia
Rating
(10 max)
2
2
3
2
3
2
2
3
3
3
4
4
4
4
4
4
4
3
3
3
3
3
3
3
Header Global
Rating
(10 max)
8
6
5
5
5
5
4
5
5
5
5
9
9
9
9
9
9
9
8
9
9
7
7
5
  • 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

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