Surf Forecasts:
Telescopes surf forecast from 25 Aug 2026:
- Best quality surf: Tuesday 25 Aug, 10AM (local time) - 5ft (1.5m), 15s period, SSW swell with cross-offshore winds.
- Most powerful swell: Tuesday 1 Sep, 7AM (local time) - 7ft (2.1m), 16s period, SSW swell with 2,461 kJ wave energy.
- Next surfable swell (1★+): Tuesday 25 Aug, 10AM (local time) - 5ft (1.5m), 15s period with SSW 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 Tuesday (Aug 25) at 10AM. The primary swell is predicted to be 1.5m and 15s period with a secondary swell of 0.7m and 7s. 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 2.1m 16s and forecast to arrive on Tuesday (Sep 01) at 7AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Thursday (Aug 27) at 4AM.
| Wave Type | Time (WIB) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10AM (Tue 25th Aug) | 5ft (1.5m) 15s |
| Best Surf | 10AM (Tue 25th Aug) | 5ft (1.5m) 15s |
| Most Powerful | 7AM (Tue 1st Sep) | 7ft (2.1m) 16s |
Table - best surf conditions forecast for Telescopes over the next 16 days.
The Lowdown
Alright folks, Rusty here, and I've got the lowdown on the only game in town for the next couple of weeks. We're looking at a solid run of swell at Telescopes, a reef break that's exposed to the southwest and handles a good SSW groundswell.
The water temp is sitting pretty much where it should be for this time of year, no major anomalies to worry about. The forecast kicks off on Tuesday, 25th August, with a clean 5ft SSW swell rolling in, a long 15-second period, and a light cross-off breeze. The combined energy is strong at 1067, so there's plenty of punch. This is world-class for experienced surfers—set up for a good session.
We get a bit of a lull through Wednesday, with the swell dropping to 4ft, but the wind goes glassy on Wednesday morning, making it clean. The energy is still moderate at 688. The real highlight fires up on Thursday, 27th August. Thursday morning sees a 4ft SSW swell with an incredibly long 19-second period and a light cross-off, with energy hitting 1738. By Thursday afternoon, the swell bumps up to 6ft, period drops slightly to 18 seconds, and the energy goes through the roof to 2163. This is a standout—long-period groundswell with clean conditions. It's a bit much for the average punter, but for the crew on a reef, this is going to be epic.
Friday, 28th August, holds the size at 6-7ft in the morning, with a 16-second period, but the wind picks up to a gentle breeze (15 km/h) from the southeast. The energy is still very strong at 1913. It's a bit more challenging, but still clean. We ease through the weekend with smaller, clean surf and gentle breezes, and the energy dips into the moderate range.
Another standout comes on Monday, 31st August. Both morning and afternoon sessions are firing with 5ft and 6ft SSW swells, periods around 18 seconds, and the energy is back up to 1952 and 2143. Glassy offshore winds would be ideal, but we're getting a solid cross-off, so it's still clean. Tuesday, 1st September, is another cracker, with 6-7ft SSW swell, 16-second period, and energy at 2339. These are the days to circle.
We then see a gradual taper through the first week of September. The wind goes glassy again on Thursday, 3rd September, with a 5-6ft SSW swell and 14-second period, and on Friday, 4th September, with a 5ft S swell. The energy stays moderate. The swell finally drops off towards 9th September, with the last decent-looking session being glassy again on Wednesday morning, 9th September, with a knee-high 2-3ft SSW swell.
Overall, the first two weeks are pretty consistent. The best on offer is hands-down the Thursday, 27th August morning and afternoon, and the Monday, 31st August sessions. The energy is high, the direction is perfect, and the winds are favorable. The crowd situation at Telescopes can be "sometimes" busy, so early morning or late afternoon will be your best bet. This is a reef break, so take your A-game.
Stay stoked, and don't be late.
Rusty.
Short Range ForecastHeavy rain (total 23mm), heaviest during Thu night. Warm (max 28°C on Tue afternoon, min 26°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 16mm), heaviest on Sat night. Warm (max 28°C on Fri afternoon, min 27°C on Fri morning). Wind will be generally light. | ||||||||||||||||||||
Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 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) | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 16 | SSW 19 | SSW 18 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SW 13 | SSW 21 | SSW 19 | SSW 18 | SSW 18 | SSW 18 | SW 17 |
Wave Graph | |||||||||||||||||||||
1010 | 845 | 672 | 545 | 479 | 425 | 1066 | 1988 | 1975 | 1650 | 1292 | 899 | 638 | 493 | 406 | 672 | 766 | 1020 | 1399 | 1837 | 1842 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross-off | glassy | cross-on | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off |
High Tide | 5:22PM0.67m | 5:23AM1.05m | 5:57PM0.77m | 5:58AM1.11m | 6:27PM0.86m | 6:29AM1.15m | 6:56PM0.95m | 6:59AM1.16m | 7:24PM1.04m | 7:27AM1.14m | 7:52PM1.10m | 7:56AM1.09m | 8:22PM1.14m | ||||||||
Low Tide | 11:37AM0.26m | 10:21PM0.30m | 11:55AM0.19m | 11:10PM0.24m | 12:16PM0.14m | 11:51PM0.18m | 12:40PM0.08m | 00:30AM0.13m | 1:05PM0.04m | 1:08AM0.10m | 1:32PM0.02m | 1:46AM0.08m | 2:00PM0.01m | 2:26AM0.09m | |||||||
6:22 | — | — | 6:22 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — | — | |
— | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:23 | — | — | 6:23 | — | — | 6:23 | — | |
mm | — | 1 | 4 | 3 | — | 6 | 1 | — | 8 | 1 | 1 | 2 | — | — | 5 | 1 | 2 | 4 | 1 | 2 | 6 |
Temp °C | 27 | 28 | 27 | 27 | 27 | 27 | 27 | 28 | 27 | 27 | 28 | 27 | 28 | 28 | 27 | 27 | 27 | 27 | 27 | 28 | 27 |
Feels °C | 30 | 31 | 30 | 32 | 31 | 30 | 30 | 31 | 29 | 29 | 30 | 29 | 30 | 30 | 29 | 30 | 30 | 30 | 30 | 31 | 30 |
Swell 1 Height (m) Direction Period (s) | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 16 | SW 14 | SSW 18 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SW 13 | SSW 21 | SSW 19 | SSW 18 | SSW 18 | SSW 18 | SW 17 |
1010 | 845 | 672 | 545 | 479 | 425 | 614 | 1988 | 1975 | 1650 | 1292 | 899 | 638 | 493 | 406 | 672 | 766 | 1020 | 1399 | 1837 | 1842 | |
Swell 2 Height (m) Direction Period (s) | SSE 7 | SSE 7 | SSE 7 | SSE 8 | SSE 8 | SSW 12 | SSW 19 | SE 7 | — | W 11 | W 11 | W 10 | W 10 | S 16 | SSW 21 | SW 13 | S 13 | S 9 | S 12 | S 11 | S 11 |
55 | 52 | 57 | 75 | 81 | 187 | 1066 | 19 | — | 2 | 2 | 2 | 2 | 46 | 178 | 208 | 340 | 133 | 276 | 22 | 181 | |
Swell 3 Height (m) Direction Period (s) | W 9 | W 9 | W 8 | SW 18 | SW 24 | SSE 8 | S 7 | — | — | — | WNW 11 | WNW 10 | SW 22 | SSW 23 | W 10 | S 13 | SW 12 | SW 12 | SW 12 | W 10 | W 9 |
2 | 2 | 1 | 81 | 22 | 60 | 38 | — | — | — | 11 | 10 | 18 | 51 | 2 | 82 | 126 | 120 | 95 | 8 | 2 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 8 | SSE 7 | SSE 7 | SSE 8 | SSE 7 | — | — | SSE 9 | — |
— | — | — | — | — | — | 62 | 74 | 91 | 115 | 93 | 117 | 138 | 134 | 101 | 105 | 76 | — | — | 138 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 35 | 0 | 0 | 51 | 0 | 0 | 0 | 0 | 3 | 35 | 0 | 0 | 74 | 0 | 0 | 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.











