- Forecast
- Maps
- Live
- Weather State
- Spot Information
Thunders surfForecast / Mentawi Islands / Indonesia
12 Day Weather and Surf, issued 6 am Friday 16 May 2025 WIB
Best Forecast Surf Conditions for Thunders this week:
The surf forecast for Thunders over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (May 16) at 1PM. The primary swell is predicted to be 1.2m and 15s period with a secondary swell of 0.7m and 10s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Thunders in the next 12 days are 1.6m 16s and forecast to arrive on Thursday (May 22) 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 1.1m 6s period and expected on Friday (May 16) at 1PM.
| Wave Type | Time (WIB) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1PM (Fri 16th May) | 4ft (1.2m) 15s |
| Best Surf | 1AM (Thu 22nd May) | 4.5ft (1.4m) 17s |
| Most Powerful | 10AM (Thu 22nd May) | 5ft (1.6m) 16s |
Table - best surf conditions forecast for Thunders over the next 12 days.
Friday 16 | Saturday 17 | Sunday 18 | Monday 19 | Tuesday 20 | Wednesday 21 | Thursday 22 | Friday 23 | Saturday 24 | Sunday 25 | Monday 26 | Tuesday 27 | |||||||||||||||||||||||||
| 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 | PM | Night | |
Rating (10 max) | ||||||||||||||||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  |  |  |  |  | ||||||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||||||||||||||
| Period(s) (?) | 15 | 15 | 15 | 14 | 14 | 16 | 15 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 17 | 17 | 17 | 16 | 16 | 15 | 18 | 17 | 16 | 15 | 15 | 14 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 19 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||
| Energy (?) | 581 | 568 | 568 | 357 | 362 | 330 | 537 | 412 | 272 | 206 | 261 | 295 | 250 | 290 | 202 | 410 | 754 | 1048 | 1239 | 1224 | 918 | 1086 | 1561 | 1415 | 1067 | 911 | 732 | 634 | 506 | 427 | 238 | 173 | 210 | 161 | 158 | 336 |
Wind (km/h) | ||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | off | cross- off | cross- off | cross- off | cross- off | off | cross- off | cross- off | off | cross- off | glass | glass | glass | cross- on | cross- on | on | glass | glass | cross- on | glass | cross- off | cross- off | glass | cross | cross | off | cross- off | cross- off | cross- off | cross- off | cross- off | off | cross- off | cross | glass |
High Tide / height (m) | 8:16PM 0.51 | 8:27AM 0.91 | 8:56PM 0.49 | 9:05AM 0.88 | 9:47PM 0.49 | 9:50AM 0.85 | 10:56PM 0.50 | 10:46AM 0.81 | 12:18AM 0.56 | 11:53AM 0.77 | 1:31AM 0.65 | 1:09PM 0.74 | 2:31AM 0.76 | 2:23PM 0.71 | 3:22AM 0.88 | 3:29PM 0.68 | 4:09AM 1.00 | 4:28PM 0.66 | 4:55AM 1.08 | 5:21PM 0.63 | 5:42AM 1.14 | 6:12PM 0.61 | ||||||||||||||
Low Tide / height (m) | 2:40PM 0.11 | 1:34AM 0.15 | 3:20PM 0.14 | 2:09AM 0.20 | 4:06PM 0.17 | 2:51AM 0.25 | 4:58PM 0.19 | 3:50AM 0.31 | 5:56PM 0.20 | 5:15AM 0.36 | 6:54PM 0.19 | 7:00AM 0.37 | 7:48PM 0.17 | 8:34AM 0.31 | 8:37PM 0.14 | 9:47AM 0.21 | 9:23PM 0.11 | 10:48AM 0.12 | 10:08PM 0.07 | 11:42AM 0.04 | 10:53PM 0.05 | 12:32PM -0.01 | 11:37PM 0.03 | |||||||||||||
Friday 16 | Saturday 17 | Sunday 18 | Monday 19 | Tuesday 20 | Wednesday 21 | Thursday 22 | Friday 23 | Saturday 24 | Sunday 25 | Monday 26 | Tuesday 27 | |||||||||||||||||||||||||
| Sunrise | 6:16 | - | - | 6:16 | - | - | 6:16 | - | - | 6:16 | - | - | 6:16 | - | - | 6:16 | - | - | 6:16 | - | - | 6:16 | - | - | 6:16 | - | - | 6:16 | - | - | 6:16 | - | - | 6:16 | - | - |
| Sunset | - | 6:14 | - | - | 6:14 | - | - | 6:14 | - | - | 6:14 | - | - | 6:14 | - | - | 6:14 | - | - | 6:14 | - | - | 6:14 | - | - | 6:14 | - | - | 6:14 | - | - | 6:15 | - | - | 6:15 | - |
 |  |  | | |  | |  | | | | | | | | | |  | | |  | | | | | | | | | | | | | |  | | |
Rain (mm) | - | - | 1 | - | - | 5 | - | - | 9 | - | - | 3 | - | - | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | - |
| Temp. °C | 28 | 28 | 28 | 29 | 29 | 28 | 30 | 30 | 28 | 29 | 29 | 28 | 29 | 29 | 28 | 29 | 28 | 27 | 29 | 29 | 28 | 29 | 29 | 27 | 29 | 28 | 27 | 29 | 28 | 27 | 29 | 29 | 27 | 29 | 28 | 27 |
| Feels °C (?) | 28 | 29 | 30 | 30 | 30 | 31 | 32 | 32 | 31 | 31 | 32 | 33 | 33 | 34 | 33 | 33 | 32 | 31 | 32 | 32 | 32 | 31 | 32 | 30 | 31 | 30 | 30 | 31 | 30 | 29 | 31 | 32 | 30 | 33 | 31 | 31 |
Short Range Forecast: Moderate rain (total 15mm), heaviest on Sun night. Warm (max 30°C on Sun morning, min 27°C on Fri night). Winds decreasing (fresh winds from the NNW on Fri morning, light winds from the N by Sun night). | Days 3-6 Weather Summary Light rain (total 4mm), mostly falling on Mon night. Warm (max 29°C on Mon morning, min 27°C on Mon night). Wind will be generally light. | Days 6-9 Weather Summary Mostly dry. Warm (max 29°C on Thu morning, min 26°C on Fri night). Wind will be generally light. | Long Range Forecast: Some drizzle, heaviest during Tue afternoon. Warm (max 29°C on Sun morning, min 26°C on Sun 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)
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 Thunders 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 Thunders Surf forecast
The above surf forecast table for Thunders provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Thunders can be found by selecting the local surf guide option on the grey menu. Our Thunders 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 (Thunders) 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 Thunders 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 Mentawi Islands? If you are looking for accommodation near Thunders, camping, hotels and holiday cottages in Mentawi Islands, consider staying in Sungaipenuh which is 172 km (107 miles) away.
Nearest