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Surf Forecasts:

Thailand surfForecast / Simeulue Island / Indonesia

information circle12 Day Weather and Surf, issued 12 pm Wednesday 14 Jan 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
29.5° 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 Thursday (Jan 15) at 4AM. The primary swell is predicted to be 1.0m and 15s period with a secondary swell of 0.5m and 9s. 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 1.3m 18s and forecast to arrive on Sunday (Jan 18) at 10PM. Winds are predicted to be cross-shore at the time the swell arrives.

Wave TypeTime (WIB) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Thu 15th Jan)3.5ft (1.0m) 15s
Best Surf 7AM (Sun 18th Jan)3ft (0.9m) 19s
Most Powerful10PM (Sun 18th Jan)4.5ft (1.3m) 18s

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 Some drizzle, heaviest during Wed morning. Warm (max 28°C on Wed morning, min 25°C on Fri night). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Warm (max 28°C on Sat morning, min 26°C on Sat night). Wind will be generally light.

Wednesday
14
Thursday
15
Friday
16
Saturday
17
Sunday
18
Monday
19
Tuesday
20
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
1
1
1
2
1
1
2
0
1
2
1
1
3
1
3
2
1
2
2
1
2
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.8
SW
0.8
SW
0.9
SW
1.1
SW
1.1
SW
1
SW
1
SW
0.8
SW
1
SW
1
SW
0.9
SW
0.9
SW
0.9
SW
1
SW
1.3
SSW
1.2
SSW
1.2
SSW
1.2
SSW
1
SSW
1
SSW
1
SSW
Period(s) (?)161615141414141313131315151418161616141414
Wave
Graph
(?)Metric surfscale
Energy kJ (?)3102993704284343933502503353052733443804121021683666649431413373
Wind
(km/h)
10
NW
10
WNW
10
NW
5
NNW
5
WNW
10
WNW
5
NW
10
W
10
WNW
10
NW
10
W
5
NW
5
NNW
15
WNW
10
NW
15
NW
15
WNW
10
NW
10
NNW
15
WNW
10
NNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscrosscrosscross-
off		cross-
on		crossglasscross-
on		crosscrosscross-
on		crosscross-
off		cross-
on		crosscrosscross-
on		crosscross-
off		crosscross-
off
High Tide
/ height (m)
3:55PM
0.53
4:04AM
0.28
4:44PM
0.57
5:01AM
0.30
5:24PM
0.61
5:41AM
0.33
6:00PM
0.65
6:16AM
0.36
6:33PM
0.69
6:49AM
0.40
7:04PM
0.72
7:21AM
0.44
7:33PM
0.74
Low Tide
/ height (m)
11:30PM
0.19
9:16AM
0.14
11:59PM
0.14
10:13AM
0.11
12:25AM
0.10
10:58AM
0.08
12:51AM
0.08
11:37AM
0.06
1:17AM
0.06
12:14PM
0.05
1:42AM
0.05
12:49PM
0.05
2:08AM
0.05
Wednesday
14
Thursday
15
Friday
16
Saturday
17
Sunday
18
Monday
19
Tuesday
20
Sunrise6:43--6:43--6:43--6:43--6:43--6:45--6:45--
Sunset-6:43--6:43--6:44--6:44--6:45--6:45--6:45-
thunderstorm
clear
part cloud
part cloud
clear
clear
clear
clear
part cloud
part cloud
clear
part cloud
clear
clear
clear
clear
clear
part cloud
rain showers
thunderstorm
rain showers
Rain (mm)
1-----------------111
Temp. °C282827282827272827282827282827282827282827
Feels °C (?)313029313130313029303029302929292929303030
  • 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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