
Surf Forecasts:
Telescopes surf forecast from 9 Aug 2026:
- Best quality surf: Monday 10 Aug, 10PM (local time) - 5.5ft (1.7m), 19s period, S swell with cross-offshore winds.
- Most powerful swell: Tuesday 11 Aug, 4PM (local time) - 7ft (2.2m), 17s period, S swell with 2,733 kJ wave energy.
- Next surfable swell (1★+): Monday 10 Aug, 10AM (local time) - 5ft (1.6m), 14s period with S swell.
Best Forecast Surf Conditions for Telescopes this week:
The surf forecast for Telescopes over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Aug 10) at 10AM. The primary swell is predicted to be 1.6m and 14s period with a secondary swell of 1.0m and 22s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Telescopes in the next 16 days are 2.2m 17s and forecast to arrive on Tuesday (Aug 11) at 4PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 5s period and expected on Sunday (Aug 09) at 10AM.
| Wave Type | Time (WIB) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10AM (Mon 10th Aug) | 5ft (1.6m) 14s |
| Best Surf | 10PM (Mon 10th Aug) | 5.5ft (1.7m) 19s |
| Most Powerful | 4PM (Tue 11th Aug) | 7ft (2.2m) 17s |
Table - best surf conditions forecast for Telescopes over the next 16 days.
The Lowdown
Alright, Rusty here. Let's have a look at what's cookin' down at Telescopes.
Alright, we’ve got a solid run of surf starting this Sunday, the 9th of August, all the way through to Monday the 24th. No real gap at the start, we’re into it from the get-go. The standout window is looking like Monday the10th through to Tuesday the11th, and then again around Thursday the13th. The water temp is sitting about average for this time of year, nothing crazy to report there.
First up, Sunday the9th is a bit of a warm-up. We’ve got a 6ft SSW groundswell rolling in with a very long 16-second period, and the wave energy is solid (1544). The wind is a moderate cross-off from the SE, so the faces will be clean, but the tide or something is making it a bit marginal. Not the day to go all out.
Now, Monday the10th – this is where it gets good. The morning is looking prime: a 5ft S swell with a 14-second period, light SE cross-off breeze, and the energy is pumping (2195). The report says it’s excellent for experienced surfers, and I’d agree. That 5ft is a sweet spot for this reef, not too big, not too small. The afternoon drops off a touch as the wind goes cross and the period jumps to 20 seconds, which can get a bit weird on a reef setup, but the morning is the pick.
Tuesday the11th is another ripper. The swell has built to 7ft from the S, 17-second period, and the energy is cranked up to 3287. That’s some serious grunt. Light cross-off wind again in the morning keeps it clean. This is expert territory now – over 5ft, and pushing towards that 8ft mark. For the crew who know the lineup, it’s going to be on. The afternoon gets a bit more crossed up.
Wednesday the12th holds in the 6-6ft range with the same long period, but we’ve got a risk of thunderstorms. Still, the wind stays light and cross-off, so the surface should stay clean. The energy is still strong (1801).
Thursday the13th morning is a glassy dream. A 5ft S swell with a 12-second period, and the wind is dead calm – glass. That’s a rare treat. The wave energy is a moderate 1307, but the conditions will be perfect. This is the morning to get an early session in.
We see a bit of a drop-off in size towards the weekend of the15th and16th, with waves around 4-5ft, but the wind stays favorable. The Sunday the16th afternoon gets a bit messy with a moderate cross-shore wind.
Then we get a second pulse. Monday the17th is smaller, but from Tuesday the18th we see a new SSW swell building fast – 7ft on Tuesday morning, hitting 8ft by the afternoon, and then peaking at 8ft on Wednesday the19th. The energy numbers are huge: 4218. This is big, powerful stuff – only for experts. The wind stays cross-off through the mornings, keeping the waves clean, but that’s a lot of water moving around. The afternoons get a cross-chop.
The last standout in this run is Thursday the20th. We’ve still got a solid 8ft SSW swell, but the wind goes glassy in the afternoon. That’s a magical combo if the tide lines up. From there, the swell slowly eases through the end of the run, staying in the 5-7ft range with clean conditions.
Honestly, if I had to pick the one day, it’s Thursday the13th morning for the glassy, clean perfection on a manageable 5ft swell. The Monday the10th morning and Tuesday the11th morning are the heavy-hitters for power and size. Crowds are “sometimes” here, so expect a few locals out, but it’s not a zoo.
So, get on it. This is a proper run of surf.
Rusty.
Short Range ForecastLight rain (total 3mm), mostly falling on Sat night. Warm (max 28°C on Sat night, min 26°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 23mm), heaviest during Wed morning. Warm (max 28°C on Tue night, min 27°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map | |||||||||||||||||||||
Wave Height (m) Direction Period (s) | SSW 16 | SSW 16 | S 15 | S 14 | S 20 | S 18 | S 17 | S 17 | S 17 | S 16 | S 16 | S 16 | S 12 | S 19 | S 17 | S 16 | S 15 | S 14 | S 14 | S 13 | S 12 |
Wave Graph | |||||||||||||||||||||
1518 | 1324 | 1392 | 1063 | 1514 | 2111 | 2564 | 2733 | 2373 | 1787 | 1571 | 1416 | 638 | 1178 | 1508 | 2164 | 2055 | 1321 | 929 | 663 | 409 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | glassy | cross-on | cross-off | cross-off | cross | cross-off | glassy | cross | cross-off |
High Tide | 3:19PM0.57m | 3:52AM1.12m | 4:36PM0.64m | 4:54AM1.20m | 5:33PM0.75m | 5:46AM1.27m | 6:20PM0.86m | 6:32AM1.30m | 7:03PM0.97m | 7:14AM1.29m | 7:44PM1.05m | 7:53AM1.24m | 8:23PM1.10m | ||||||||
Low Tide | 9:36AM0.30m | 8:19PM0.24m | 10:51AM0.21m | 9:43PM0.21m | 11:42AM0.12m | 10:53PM0.15m | 12:23PM0.06m | 11:50PM0.10m | 12:59PM0.01m | 00:40AM0.06m | 1:31PM-0.01m | 1:26AM0.06m | 2:02PM-0.00m | 2:09AM0.09m | |||||||
6:26 | — | — | 6:26 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | |
— | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:27 | — | — | 6:27 | — | |
mm | — | — | — | — | — | — | — | — | 4 | 6 | 2 | 6 | 1 | — | 3 | 1 | — | 7 | 1 | 1 | 11 |
Temp °C | 28 | 28 | 27 | 28 | 28 | 27 | 28 | 28 | 28 | 28 | 28 | 27 | 28 | 28 | 28 | 27 | 28 | 27 | 27 | 28 | 27 |
Feels °C | 28 | 28 | 27 | 30 | 30 | 29 | 32 | 31 | 31 | 31 | 32 | 30 | 32 | 31 | 31 | 31 | 32 | 31 | 31 | 32 | 30 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 16 | S 15 | S 14 | S 14 | S 18 | S 17 | S 17 | S 17 | S 16 | S 16 | S 16 | S 12 | S 12 | S 17 | S 16 | S 15 | S 14 | S 14 | S 13 | S 12 |
1518 | 1324 | 1392 | 1063 | 874 | 2111 | 2564 | 2733 | 2373 | 1787 | 1571 | 1416 | 638 | 596 | 1508 | 2164 | 2055 | 1321 | 929 | 663 | 409 | |
Swell 2 Height (m) Direction Period (s) | WNW 9 | WNW 9 | WNW 9 | S 22 | S 20 | SSW 13 | SSW 19 | WNW 8 | WNW 8 | WNW 9 | WNW 9 | S 20 | S 18 | S 19 | S 11 | SSW 22 | SSW 20 | SW 16 | SW 16 | S 17 | S 16 |
26 | 15 | 16 | 915 | 1514 | 617 | 716 | 7 | 6 | 7 | 7 | 186 | 521 | 1178 | 467 | 91 | 78 | 159 | 264 | 274 | 313 | |
Swell 3 Height (m) Direction Period (s) | — | S 27 | S 24 | SSW 24 | WNW 8 | SSW 21 | WNW 9 | WNW 8 | W 10 | W 20 | S 22 | WNW 10 | SSW 15 | SW 15 | SW 15 | WNW 11 | WNW 11 | SSW 20 | S 18 | SW 15 | SW 16 |
— | 14 | 44 | 217 | 14 | 404 | 7 | 14 | 2 | 7 | 36 | 10 | 148 | 77 | 110 | 12 | 12 | 127 | 230 | 239 | 196 | |
Wind waves Height (m) Direction Period (s) | SE 5 | SSE 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
74 | 55 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 35 | 350 | 103 | 0 | 35 | 0 | 0 | 74 | 35 | 41 | 0 | 0 | 0 | 51 | 0 | 0 | 35 | 0 | 0 | 35 | 0 |
Best forecast wave conditions in Mentawi Islands | |||||||||||||||||||||
Best forecast wave conditions in Indonesia | |||||||||||||||||||||
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Information about the Telescopes Surf forecast
The above surf forecast table for Telescopes provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Telescopes can be found by selecting the local surf guide option on the grey menu. Our Telescopes 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 (Telescopes) 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 Telescopes 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 Telescopes, camping, hotels and holiday cottages in Mentawi Islands, consider staying in Padang which is 148 km (92 miles) away.











