Surf Forecast Surf Report

Thailand surfForecast / Simeulue Island / Indonesia

information circle12 Day Weather and Surf, issued 6 am Saturday 19 Apr 2025 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
29.7° C
(Which is normal for this time of year)


Best Forecast Surf Conditions for Thailand this week:

The surf forecast for Thailand over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Apr 19) at 10AM. The primary swell is predicted to be 0.9m and 18s period with a secondary swell of 0.9m and 14s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Thailand in the next 12 days are 2.0m 17s and forecast to arrive on Wednesday (Apr 23) at 10AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 4s period and expected on Sunday (Apr 20) at 1PM.

Wave TypeTime (WIB) & Date Wave Height & Period
Next good surf (1 star+)10AM (Sat 19th Apr)3ft (0.9m) 18s
Best Surf 1AM (Wed 23rd Apr)5ft (1.5m) 18s
Most Powerful10AM (Wed 23rd Apr)6.5ft (2.0m) 17s

Table - best surf conditions forecast for Thailand over the next 12 days.

Updates in  hr  min  s Forecast update imminent
Saturday
19
Sunday
20
Monday
21
Tuesday
22
Wednesday
23
Thursday
24
Friday
25
Saturday
26
Sunday
27
Monday
28
Tuesday
29
Wednesday
30
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.9
S
1.2
SSW
1.3
SSW
1.3
SSW
1.2
SSW
1.1
S
1
S
1
S
0.9
S
0.8
SSW
1.4
SSW
1.5
SSW
2
SSW
1.8
SW
1.7
SW
1.7
SSW
1.5
SSW
1.4
SW
1.2
SSW
1.2
SSW
1
SSW
1
SSW
0.9
SSW
0.9
SSW
0.9
SSW
1.4
SSW
1.3
SSW
1.2
SSW
1.1
SSW
1
S
1.1
SSW
0.9
S
1.2
SSW
0.9
SSW
0.9
SSW
0.8
SSW
Period(s) (?)181715141414131213201918171616161615141414131318161614131313151215141413
Wave
Graph
(?)Metric surfscale
Energy (?)4928777446335274603343192684951395143122831735146713391112795553553419331273510427966724539437324543220693330321222
Wind
(km/h)
10
NNW
20
WNW
25
NNW
20
NNW
20
NNW
20
NNW
15
NW
20
WNW
20
NW
10
NNW
10
NW
5
SW
5
SSE
5
NW
10
NE
5
NW
5
WNW
5
WSW
5
ENE
5
S
0
NNW
0
SSE
5
S
5
S
5
SE
5
SSW
5
S
10
S
10
SW
10
SW
5
S
10
SSW
5
S
5
ESE
10
SSW
5
SW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
crosscross-
off
cross-
off
cross-
off
cross-
off
crosscross-
on
crosscross-
off
crossglassglassglassoffglassglassglassglassglassglassglassglassglasscrossonglasscross-
on
ononcross-
on
cross-
on
glassglasscross-
on
on
High Tide
/ height (m)
9:12PM
0.31
10:21AM
0.53
10:20PM
0.27
11:41AM
0.51
1:26AM
0.28
1:22PM
0.52
3:12AM
0.36
2:42PM
0.56
3:56AM
0.46
3:39PM
0.59
4:33AM
0.56
4:28PM
0.61
5:08AM
0.66
5:12PM
0.61
5:45AM
0.74
5:54PM
0.59
6:22AM
0.79
6:35PM
0.55
7:01AM
0.81
7:15PM
0.49
7:42AM
0.80
7:56PM
0.43
Low Tide
/ height (m)
4:12PM
0.19
2:46AM
0.13
5:45PM
0.22
3:24AM
0.19
8:07PM
0.21
5:08AM
0.26
9:08PM
0.17
8:05AM
0.26
9:44PM
0.12
9:30AM
0.22
10:16PM
0.08
10:28AM
0.15
10:47PM
0.04
11:17AM
0.09
11:18PM
0.00
12:04PM
0.03
11:49PM
-0.02
12:49PM
0.00
12:21AM
-0.03
1:34PM
-0.00
12:53AM
-0.03
2:21PM
0.02
1:26AM
-0.01
Saturday
19
Sunday
20
Monday
21
Tuesday
22
Wednesday
23
Thursday
24
Friday
25
Saturday
26
Sunday
27
Monday
28
Tuesday
29
Wednesday
30
Sunrise6:28--6:28--6:28--6:28--6:26--6:26--6:26--6:26--6:26--6:26--6:26--6:26--
Sunset-6:38--6:38--6:37--6:37--6:37--6:37--6:37--6:37--6:37--6:37--6:37--6:37-
cloudcloudmod raincloudpart cloudpart cloudrain showersthunderstorm rain showersthunderstorm part cloudthunderstorm cloudcloudpart cloudpart cloudpart cloudcloudpart cloudpart cloudpart cloudclearclearclearpart cloudclearpart cloudpart cloudclearpart cloudclearclearpart cloudclearclearclear
Rain (mm)
--6---1251-13------------------------
Temp. °C292828282827292928293027252627282928292928292928282928292928292928292928
Feels °C (?)322929292927323130323330293030323332333333333332323332323231323231323131

Short Range Forecast: Moderate rain (total 14mm), heaviest on Sat night. Warm (max 29°C on Sat morning, min 26°C on Sat night). Wind will be generally light.

Days 3-6 Weather Summary Moderate rain (total 14mm), heaviest on Tue night. Warm (max 30°C on Tue afternoon, min 25°C on Tue night). Wind will be generally light.

Days 6-9 Weather Summary Mostly dry. Warm (max 29°C on Fri morning, min 27°C on Fri night). Wind will be generally light.

Long Range Forecast: Mostly dry. Warm (max 29°C on Mon morning, min 27°C on Mon night). Wind will be generally light.

  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Information about the Thailand Surf forecast

The above surf forecast table for Thailand provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Thailand can be found by selecting the local surf guide option on the grey menu. Our Thailand 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 (Thailand) 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 Thailand 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.

Are you planning a holiday in Simeulue Island? If you are looking for accommodation near Thailand, camping, hotels and holiday cottages in Simeulue Island, consider staying in Batoe Nasera which is 84 km (52 miles) away.

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