Surf Forecasts:
Telescopes surf forecast from 25 Jul 2026:
- Best quality surf: Friday 31 Jul, 1AM (local time) - 4ft (1.2m), 18s period, SSW swell with cross-offshore winds.
- Most powerful swell: Saturday 1 Aug, 7AM (local time) - 5ft (1.5m), 18s period, SSW swell with 1,309 kJ wave energy.
- Next surfable swell (1★+): Sunday 26 Jul, 10PM (local time) - 4.5ft (1.3m), 10s period with SSE 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 Sunday (Jul 26) at 10PM. The primary swell is predicted to be 1.3m and 10s period with a secondary swell of 0.6m and 14s. 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 1.5m 18s and forecast to arrive on Saturday (Aug 01) at 7AM. Winds are predicted to be glassy at the time the swell arrives.
| Wave Type | Time (WIB) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Sun 26th Jul) | 4.5ft (1.3m) 10s |
| Best Surf | 1AM (Fri 31st Jul) | 4ft (1.2m) 18s |
| Most Powerful | 7AM (Sat 1st Aug) | 5ft (1.5m) 18s |
Table - best surf conditions forecast for Telescopes over the next 16 days.
The Lowdown
Alright folks, it’s Rusty here. Let’s have a look at the only game in town for the next couple of weeks.
Telescopes is a reef break that knows how to handle a bit of energy. It’s exposed, and it loves a good SW swell, which is exactly what we’ve got lining up. The water’s sitting at a warm 86°, which is about average for this time of year, so no surprises there.
The first few days are a bit of a tease. Saturday and Sunday the 25th and 26th of July have some size – 5ft to 6ft – but it’s coming from the SSE with a cross-off wind that’s a bit fresh. The combined energy is moderate (885 to 897), and the comment says it’s marginal, so I’d be twiddling my thumbs. Monday and Tuesday the 27th and 28th drop off a bit in size, down to 2ft, but the wind glassed right off on Tuesday afternoon. The swell direction swings to SSW with a very long period groundswell of 15 to 16 seconds (energy 376 to 421). That’s a classic reef-building pulse, but it’s on the small side.
Now, Thursday the 30th of July is where my ears perk up. The morning session shows a 3ft SSW swell with a 19-second period – that’s as long as it gets, proper groundswell energy. The cross-off wind is light, and the combined energy is getting up there at 939. The forecast says “very good,” and I’m leaning that way.
But the real standout window is from Friday the 31st of July through to Saturday the 8th of August. We’ve got a solid run of SSW swell pushing 4ft to 7ft, with periods between 14 and 19 seconds. The energy numbers are telling a story: 1048, 1377, 1123, 1354, all the way up to a massive 2404 on the 8th. That’s strong to very strong energy. The wind is glassy or light cross-off for most of these sessions, meaning clean, groomed lines. Break just keeps getting better.
The 8th of August is the big one. A 7ft SSW swell, period 16 seconds, clean cross-off wind, and the combined energy is roaring at 2404. That’s expert territory, boys. It’s big, powerful, and will be bending around that reef with authority. The 9th is still good, but the wind picks up a bit so it’s not as perfect.
Crowds can pop up at Telescopes, so be ready for company on the best days. The consistency is there, and this reef will hold the long-period groundswell beautifully.
Rusty.
Short Range ForecastLight rain (total 7mm), mostly falling on Sun night. Warm (max 28°C on Sat morning, min 27°C on Sat morning). Winds decreasing (fresh winds from the SSE on Sat morning, calm by Mon night). | Days 4-6 Weather SummaryModerate rain (total 11mm), heaviest on Wed night. Warm (max 28°C on Tue morning, min 26°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | |||||||||||||||
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) | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SW 14 | SSW 14 | SSW 20 | SSW 19 | SSW 18 | SSW 18 | SSW 17 | SSW 16 | SSW 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 550 | 650 | 471 | 399 | 334 | 295 | 205 | 236 | 220 | 217 | 196 | 256 | 214 | 325 | 395 | 651 | 721 | 887 | 587 | 808 | 683 |
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-off | cross-off | cross-off | cross-off | cross-off | cross-off | glassy | cross-off | cross-off | cross | cross-off | cross-off | cross | cross-off | cross-off | glassy | cross-off |
High Tide | 3:47PM0.54m | 4:12AM0.96m | 4:50PM0.58m | 5:02AM1.02m | 5:37PM0.63m | 5:44AM1.08m | 6:17PM0.69m | 6:22AM1.13m | 6:53PM0.75m | 6:55AM1.16m | 7:25PM0.82m | 7:26AM1.18m | 7:56PM0.88m | ||||||||
Low Tide | 10:47AM0.37m | 8:19PM0.32m | 11:29AM0.30m | 9:31PM0.30m | 11:57AM0.24m | 10:31PM0.26m | 12:23PM0.19m | 11:21PM0.22m | 12:49PM0.14m | 00:04AM0.18m | 1:15PM0.11m | 00:44AM0.16m | 1:42PM0.08m | 1:22AM0.15m | |||||||
 |  |  | | |  |  | |  | | | | | | | | | | | | | |
 | 6:26 | — | — | 6:26 | — | — | 6:26 | — | — | 6:26 | — | — | 6:26 | — | — | 6:26 | — | — | 6:26 | — | — |
 | — | 6:28 | — | — | 6:28 | — | — | 6:29 | — | — | 6:29 | — | — | 6:29 | — | — | 6:29 | — | — | 6:29 | — |
mm | — | — | — | — | — | 1 | 2 | 1 | 3 | — | — | 3 | 2 | 1 | 3 | — | — | 2 | — | — | 1 |
Temp °C | 28 | 28 | 27 | 28 | 28 | 27 | 27 | 27 | 27 | 28 | 28 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 28 | 28 |
Feels °C | 27 | 27 | 26 | 28 | 29 | 29 | 29 | 29 | 30 | 31 | 32 | 30 | 31 | 30 | 30 | 32 | 31 | 32 | 33 | 32 | 32 |
Swell 1 Height (m) Direction Period (s) | SW 15 | S 15 | SW 14 | SW 14 | SW 14 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 9 | SSW 14 | SSW 14 | SSW 19 | SSW 18 | SSW 18 | SSW 17 | SSW 16 | SSW 16 |
| kJ | 209 | 113 | 189 | 186 | 149 | 295 | 205 | 236 | 169 | 169 | 146 | 140 | 110 | 325 | 299 | 651 | 721 | 887 | 587 | 808 | 683 |
Swell 2 Height (m) Direction Period (s) | S 16 | SW 14 | W 11 | W 10 | SSW 19 | SW 13 | SW 12 | SW 13 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SW 14 | SSE 9 | S 8 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 20 | SSW 20 |
| kJ | 124 | 132 | 2 | 2 | 34 | 138 | 77 | 78 | 220 | 217 | 196 | 256 | 214 | 111 | 66 | 225 | 149 | 108 | 198 | 227 | 298 |
Swell 3 Height (m) Direction Period (s) | W 9 | W 9 | W 11 | W 11 | W 10 | SSW 18 | SSW 17 | SSW 17 | SW 12 | SW 12 | SW 12 | SW 11 | S 15 | SSW 21 | SSW 20 | SSE 8 | S 7 | SSE 8 | SSW 22 | S 7 | SSW 12 |
| kJ | 2 | 2 | 2 | 2 | 2 | 33 | 113 | 113 | 71 | 35 | 34 | 19 | 40 | 180 | 395 | 63 | 27 | 53 | 263 | 27 | 115 |
Wind waves Height (m) Direction Period (s) | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 550 | 650 | 471 | 399 | 334 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 350 | 417 | 35 | 35 | 369 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 35 | 0 | 0 | 35 | 0 | 0 | 0 | 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.
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