Snow-ForecastSnow-ForecastMountain-ForecastMountain-ForecastTide-ForecastTide-ForecastWeather-ForecastWeather-Forecast
Search by country, region, or break
Search by country, region, or break

Quick Links

Surf Forecasts:

Thailand surfForecast / Simeulue Island / Indonesia

information circle12 Day Weather and Surf, issued 6 pm Monday 09 Mar 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
30.0° 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 Tuesday (Mar 10) at 10AM. The primary swell is predicted to be 0.8m and 14s period with a secondary swell of 0.5m and 10s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Thailand in the next 12 days are 1.3m 15s and forecast to arrive on Monday (Mar 16) at 7AM. Winds are predicted to be cross-onshore at the time the swell arrives.

Wave TypeTime (WIB) & Date Wave Height & Period
Next good surf (1 star+)10AM (Tue 10th Mar)2.5ft (0.8m) 14s
Best Surf 7AM (Sat 14th Mar)1.5ft (0.5m) 22s
Most Powerful 7AM (Mon 16th Mar)4.5ft (1.3m) 15s

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

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

Short Range Forecast Heavy rain (total 29mm), heaviest during Tue night. Warm (max 29°C on Mon afternoon, min 26°C on Mon night). Wind will be generally light.

Days 3-6 Weather Summary Light rain (total 9mm), mostly falling on Thu night. Warm (max 28°C on Thu afternoon, min 26°C on Thu night). Wind will be generally light.

Mon
09
Tuesday
10
Wednesday
11
Thursday
12
Friday
13
Saturday
14
Sunday
15
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
1
1
2
1
1
2
1
2
2
1
1
2
1
1
3
3
2
3
2
2
3
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.7
SSW
0.6
SW
0.8
SSW
0.7
SW
0.9
SW
0.9
SSW
0.9
SSW
0.9
SSW
1
SSW
0.9
SSW
0.7
SSW
0.7
S
0.8
S
0.9
S
0.7
SSW
0.9
SSW
1
SSW
1
SSW
1.2
SSW
1.2
SW
1.2
SW
Period(s) (?)161514141313131212121211111021201817171516
Wave
Graph
(?)Metric surfscale
Energy kJ (?)250139261206257304261210318233145114146172393596696608771666702
Wind
(km/h)
10
SSW
10
SW
5
SW
5
SSW
10
SSW
0
SSW
10
SW
5
W
0
SSE
10
SW
5
SW
5
ESE
5
SSW
5
SW
5
SE
5
WSW
5
NW
5
NNW
10
W
10
WNW
5
WNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
ononglassononglassonglassglassononglassononglassglasscrossglasscross-
on		crossglass
High Tide
/ height (m)
9:06PM
0.40
10:01AM
0.53
9:16PM
0.34
10:46AM
0.48
8:57PM
0.29
12:14PM
0.43
2:43PM
0.45
4:27AM
0.26
3:56PM
0.51
4:50AM
0.33
4:37PM
0.57
5:14AM
0.41
Low Tide
/ height (m)
3:00AM
0.07
4:13PM
0.21
3:21AM
0.11
5:19PM
0.26
3:41AM
0.15
4:05AM
0.20
11:18PM
0.19
8:17AM
0.23
11:16PM
0.15
9:49AM
0.20
11:28PM
0.11
10:38AM
0.15
Mon
09
Tuesday
10
Wednesday
11
Thursday
12
Friday
13
Saturday
14
Sunday
15
Sunrise--6:41--6:41--6:41--6:41--6:41--6:41--6:39
Sunset6:47--6:46--6:46--6:46--6:46--6:46--6:45--
clear
rain showers
thunderstorm
part cloud
rain showers
thunderstorm
clear
clear
thunderstorm
clear
rain showers
thunderstorm
clear
rain showers
thunderstorm
thunderstorm
thunderstorm
clear
clear
clear
clear
Rain (mm)
-84-95--3-31-1211----
Temp. °C292828282828282828282828282828282728292828
Feels °C (?)323132313132313232313231313232323031323132
  • 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

Latest Updates

Surf-Forecast Premium Launches 16-day Forecast and New, Improved Modelling
Ben Mondy

Surf-Forecast Premium Launches 16-day Forecast and New, Improved Modelling

Get 16% off your subscription with code 16DAYS—available for 16 days only, until March 25, 2026. Surf-Forecast Premium just got better. All paid subscribers will now see a full 16-day forecast, surf reports and wind and tide data for over 7,000 of the world's best surf spots. Premium members will also have access to a new high-resolution forecast model, which enhances our current forecasts by making them quicker and more accurate. That’s more lead time. More confidence. More chances to score g

Save Up to 20% on SIXT Rental Cars Worldwide – Exclusive Surf-Forecast Deal
travel
Surf Forecast

Save Up to 20% on SIXT Rental Cars Worldwide – Exclusive Surf-Forecast Deal

Surf road trips just got even better. Surf-Forecast users can now save up to 20% on SIXT rental cars worldwide during the promotional period until March 31, 2026. Whether you’re planning a legendary California road trip, chasing waves along Europe’s coasts, or exploring remote surf destinations, this exclusive SIXT offer helps you travel smarter and cheaper. And if you want some inspiration on where to go, check out our article Five Iconic Surf Road Trips. Click and get your SIXT discount

Read more

Read more

Discover more articles and updates in the Greenroom.

submit an eyeball surf report

Quick surf report for Thailand:

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 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.

Nearest locationNearest
Nearest locationNearest
Nearest locationNearest