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Similan Islands Surf Forecast
/ Andaman Sea (9 surf breaks) /
Similan Islands surfForecast / Andaman Sea / Thailand
12 Day Weather and Surf, issued 6 pm Saturday 22 Feb 2025 +07
Best Forecast Surf Conditions for Similan Islands this week:
The surf forecast for Similan Islands over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Feb 22) at 10PM. The primary swell is predicted to be 0.6m and 16s period with a secondary swell of 0.3m and 12s. Another secondary swell of 0.4m and 12s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Similan Islands in the next 12 days are 0.7m 16s and forecast to arrive on Sunday (Feb 23) at 1AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 6s period and expected on Monday (Feb 24) at 10PM.
| Wave Type | Time (+07) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Sat 22nd Feb) | 2ft (0.6m) 16s |
| Best Surf | 10PM (Sat 22nd Feb) | 2ft (0.6m) 16s |
| Most Powerful | 1AM (Sun 23rd Feb) | 2.5ft (0.7m) 16s |
Table - best surf conditions forecast for Similan Islands over the next 12 days.
Sat 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 01 | Sunday 02 | Monday 03 | Tuesday 04 | Wednesday 05 | Thu 06 | ||||||||||||||||||||||||
| PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Rating (10 max) | ||||||||||||||||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  |  |  |  |  |  | |||||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||||||||||||||
| Period(s) (?) | 16 | 16 | 15 | 15 | 14 | 14 | 14 | 16 | 16 | 16 | 15 | 14 | 14 | 13 | 16 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 13 | 13 | 13 | 14 | 13 | 13 | 13 | 13 | 9 | 9 | 15 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||
| Energy (?) | 165 | 251 | 143 | 136 | 206 | 167 | 119 | 91 | 90 | 239 | 134 | 130 | 127 | 113 | 89 | 130 | 103 | 71 | 63 | 61 | 44 | 26 | 23 | 23 | 23 | 28 | 17 | 28 | 29 | 28 | 26 | 25 | 27 | 54 | 84 | 33 |
Wind (km/h) | ||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | off | off | cross- on | cross | off | off | off | off | off | off | off | glass | off | cross- off | glass | off | cross- off | glass | glass | off | cross- on | glass | cross- off | on | cross | glass | cross- on | cross- off | cross- off | cross- on | cross- off | cross- off | cross- on | cross- on | cross |
High Tide / height (m) | 5:03PM 1.46 | 6:16AM 1.18 | 7:09PM 1.56 | 8:03AM 1.36 | 8:16PM 1.78 | 8:53AM 1.59 | 9:01PM 2.01 | 9:32AM 1.84 | 9:39PM 2.23 | 10:07AM 2.07 | 10:14PM 2.40 | 10:42AM 2.25 | 10:49PM 2.49 | 11:16AM 2.38 | 11:24PM 2.50 | 11:50AM 2.42 | 12:00AM 2.41 | 12:25PM 2.38 | 12:36AM 2.24 | 1:01PM 2.27 | 1:13AM 2.01 | 1:39PM 2.09 | 1:54AM 1.74 | |||||||||||||
Low Tide / height (m) | 12:37AM 0.95 | 12:06PM 0.91 | 2:15AM 0.75 | 1:56PM 0.75 | 2:56AM 0.51 | 2:47PM 0.54 | 3:30AM 0.28 | 3:28PM 0.33 | 4:03AM 0.07 | 4:06PM 0.16 | 4:35AM -0.09 | 4:43PM 0.04 | 5:08AM -0.19 | 5:20PM -0.03 | 5:41AM -0.20 | 5:57PM -0.02 | 6:14AM -0.13 | 6:35PM 0.06 | 6:48AM 0.02 | 7:14PM 0.21 | 7:22AM 0.22 | 7:57PM 0.41 | 7:58AM 0.46 | |||||||||||||
Sat 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 01 | Sunday 02 | Monday 03 | Tuesday 04 | Wednesday 05 | Thu 06 | ||||||||||||||||||||||||
| Sunrise | - | - | 6:45 | - | - | 6:45 | - | - | 6:43 | - | - | 6:43 | - | - | 6:43 | - | - | 6:43 | - | - | 6:43 | - | - | 6:41 | - | - | 6:41 | - | - | 6:41 | - | - | 6:41 | - | - | 6:41 |
| Sunset | 6:39 | - | - | 6:39 | - | - | 6:39 | - | - | 6:39 | - | - | 6:39 | - | - | 6:39 | - | - | 6:39 | - | - | 6:39 | - | - | 6:39 | - | - | 6:39 | - | - | 6:39 | - | - | 6:39 | - | - |
 |  |  | | | |  | | | | | | |  | | | | | |  | | |  |  | | | | | | | | | | | | | |
Rain (mm) | - | 3 | 1 | 4 | 11 | 1 | 1 | 5 | - | 5 | 1 | - | 1 | - | - | - | 12 | 4 | 1 | 1 | - | 1 | - | - | - | 7 | 1 | 1 | 2 | 2 | - | 3 | 2 | 4 | 5 | 3 |
| Temp. °C | 29 | 29 | 28 | 28 | 27 | 27 | 27 | 27 | 28 | 29 | 27 | 27 | 28 | 28 | 27 | 28 | 28 | 27 | 28 | 28 | 28 | 29 | 29 | 27 | 29 | 29 | 28 | 29 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 |
| Feels °C (?) | 31 | 31 | 32 | 31 | 30 | 29 | 29 | 27 | 29 | 29 | 26 | 29 | 32 | 29 | 29 | 31 | 30 | 31 | 31 | 32 | 32 | 31 | 32 | 30 | 32 | 33 | 33 | 31 | 30 | 32 | 30 | 31 | 30 | 30 | 30 | 31 |
Short Range Forecast: Heavy rain (total 26mm), heaviest during Sun night. Warm (max 29°C on Sat afternoon, min 25°C on Sun night). Wind will be generally light. | Days 3-6 Weather Summary Heavy rain (total 23mm), heaviest during Thu night. Warm (max 29°C on Tue afternoon, min 26°C on Thu night). Winds decreasing (fresh winds from the ENE on Tue night, calm by Wed morning). | Days 6-9 Weather Summary Moderate rain (total 11mm), heaviest on Sun night. Warm (max 29°C on Sat afternoon, min 27°C on Fri afternoon). Wind will be generally light. | Long Range Forecast: Heavy rain (total 22mm), heaviest during Wed night. Warm (max 29°C on Mon afternoon, min 27°C on Tue night). Wind will be generally light. | |||||||||||||||||||||||||||||||||
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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 Similan Islands 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.
Information about the Similan Islands Surf forecast
The above surf forecast table for Similan Islands provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Similan Islands can be found by selecting the local surf guide option on the grey menu. Our Similan Islands 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 (Similan Islands) 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 Similan Islands 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.
Similan Islands is 107 km (66 miles) from Kathu. If you plan a holiday in Andaman Sea, look for hotels and other accommodation in Kathu. Kathu has rooms for a wide range of budgets as well as car hire and transport links.
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