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Surf Forecasts:

Thailand surfForecast / Simeulue Island / Indonesia

information circle12 Day Weather and Surf, issued 12 am Sunday 23 Nov 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
29.1° C
 (Which is slightly warmer than usual)

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 Tuesday (Nov 25) at 10PM. The primary swell is predicted to be 3.0m and 10s period with a secondary swell of 0.9m and 13s. The wind is predicted to be cross-onshore as the swell arrives.

The most powerful waves expected at Thailand in the next 12 days are 4.5m 10s and forecast to arrive on Tuesday (Nov 25) at 4PM. Winds are predicted to be onshore at the time the swell arrives.

Wave TypeTime (WIB) & Date Wave Height & Period
Next good surf (1 star+)10PM (Tue 25th Nov)10ft (3.0m) 10s
Best Surf10PM (Tue 25th Nov)10ft (3.0m) 10s
Most Powerful 4PM (Tue 25th Nov)15ft (4.5m) 10s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Heavy rain (total 156mm), heaviest during Mon afternoon. Warm (max 26°C on Sat night, min 24°C on Mon afternoon). Winds increasing (moderate winds from the WNW on Sun night, strong winds from the WSW by Tue morning).

Days 3-6 Weather Summary Heavy rain (total 40mm), heaviest during Tue night. Warm (max 28°C on Thu morning, min 24°C on Tue night). Wind will be generally light.

Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Sat
29
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
2
3
3
3
3
2
2
3
3
4
3
3
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1
SW
0.9
SW
0.9
SW
0.7
SW
0.7
SW
1.7
WSW
2.1
W
4
WSW
4.5
WSW
2.5
W
1.8
W
1.6
W
0.8
SW
1.7
WNW
1
SW
1.1
SW
1.4
SW
1.5
SW
1.6
SW
1.6
SW
1.6
SW
Period(s) (?)121212111267910999181217161616161515
Wave
Graph
(?)Metric surfscale
Energy kJ (?)2922052051301401734573112383011025153803838055876869401129122411711045
Wind
(km/h)
30
W
30
WNW
25
NW
25
W
25
W
40
WNW
45
W
45
WSW
30
SW
15
WNW
5
N
5
WSW
10
NNW
10
NW
15
W
10
WNW
10
NW
10
W
10
NNW
10
NW
15
NNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		crosscrosscross-
on		cross-
on		cross-
on		cross-
on		cross-
on		oncross-
on		glassglasscross-
off		crosscross-
on		cross-
on		crosscross-
on		cross-
off		crosscross-
off
High Tide
/ height (m)
7:28AM
0.37
7:52PM
0.66
7:59AM
0.35
8:26PM
0.64
8:36AM
0.34
9:03PM
0.61
9:24AM
0.33
9:44PM
0.59
10:32AM
0.34
10:35PM
0.56
12:04PM
0.37
11:39PM
0.53
1:33PM
0.43
Low Tide
/ height (m)
1:55AM
0.07
12:53PM
0.04
2:30AM
0.09
1:22PM
0.06
3:09AM
0.12
1:54PM
0.10
3:54AM
0.15
2:30PM
0.16
4:49AM
0.17
3:19PM
0.22
5:54AM
0.17
4:42PM
0.28
6:58AM
0.16
6:50PM
0.30
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Sat
29
Sunrise-6:20--6:20--6:20--6:20--6:22--6:22--6:22-
Sunset--6:21--6:21--6:21--6:21--6:22--6:22--6:22
mod rain
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
mod rain
thunderstorm
rain showers
clear
part cloud
rain showers
thunderstorm
thunderstorm
thunderstorm
clear
part cloud
Rain (mm)
93219142538301623751--1122--
Temp. °C262626262626262526262525262828272828272827
Feels °C (?)252626272725252127282930293030303130292929
  • 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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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 Thailand 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 Thailand at:
surf-forecast.com

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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