Surf Forecasts:
Telescopes surf forecast from 16 Aug 2026:
- Best quality surf: Wednesday 19 Aug, 10AM (local time) - 8ft (2.5m), 18s period, SSW swell with cross-offshore winds.
- Most powerful swell: Wednesday 19 Aug, 4PM (local time) - 8ft (2.5m), 17s period, SSW swell with 4,304 kJ wave energy.
- Next surfable swell (1★+): Sunday 16 Aug, 10PM (local time) - 3.5ft (1.1m), 14s 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 Sunday (Aug 16) at 10PM. The primary swell is predicted to be 1.1m and 14s period with a secondary swell of 0.8m and 9s. 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 2.5m 17s and forecast to arrive on Wednesday (Aug 19) 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 0.9m 5s period and expected on Saturday (Aug 22) at 10AM.
| Wave Type | Time (WIB) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Sun 16th Aug) | 3.5ft (1.1m) 14s |
| Best Surf | 10AM (Wed 19th Aug) | 8ft (2.5m) 18s |
| Most Powerful | 4PM (Wed 19th Aug) | 8ft (2.5m) 17s |
Table - best surf conditions forecast for Telescopes over the next 16 days.
The Lowdown
Alright, Rusty here, let’s talk about what’s coming up at Telescopes.
We’ve got a solid run of surf on the radar, but the real standout is shaping up a fair way out. The water is sitting at 30° right now, which is about normal for this time of year, so no worries there.
The action kicks off on Sunday the 16th with a morning session. Swell is coming in at 4 ft from the south, with a very long 15-second period. That’s proper groundswell energy, and combined energy is moderate at 926. Winds are light cross-off from the SSE, so the waves will be clean. This is a reef break, and that long period can make it a bit fickle, but the conditions are solid. The afternoon drops to 3 ft with cross-shore wind, so it’s a bit messier.
Monday the 17th and Tuesday the 18th offer clean conditions in the mornings with that cross-off wind, but the swell is mixed. Tuesday morning sees the swell bump to 6 ft from the SSW, period 16 seconds, and combined energy jumps to 2041. That’s moderate energy, but the wind is a moderate breeze, so it’s not glassy. The afternoon gets a cross-chop, so mornings are the call.
Now, the first real standout comes on Wednesday the 19th. The morning has 8 ft of SSW swell with an 18-second period—that’s very long period groundswell. Combined energy hits 3823, which is strong. Winds are light cross-off from the SSE, making for clean waves. This is getting into expert territory, size-wise, and at a reef break, it’ll be a proper session for those with skill. The afternoon, the wind picks up and goes cross-shore, so it’s a bit less clean.
Thursday the 20th is also strong, with 8 ft swell and 16-second period, combined energy 3041. The morning is clean with a moderate cross-off breeze, and the afternoon goes lighter and cleaner. This is still expert-level surf.
We’ve got a bit of a lull from Friday the 21st through to Sunday the 23rd, with swell dropping to 5 ft to 6 ft. The mornings are clean, but the energy is moderate. Crowds are sometimes an issue here, so be aware.
The next window that looks good is Monday the 24th. Morning has 4 ft of south swell, 17-second period, combined energy 1421. Light cross-off wind, clean waves. The afternoon gets cross-shore, so morning is best.
From Tuesday the 25th through Thursday the 28th, the swell sits around 3 ft to 4 ft, mostly from the SSW with periods of 14 to 16 seconds. Mornings are clean with light wind, and combined energy is moderate, in the 700 to 1000 range. Good for a longboard or a fun board.
Friday the 28th afternoon has a nice little pulse: 4 ft from the SW, 14 seconds, light cross-off wind, clean.
Saturday the 29th afternoon is worth a mention: 4 ft from the SSW, 17-second period, combined energy 1341. Gentle cross-off breeze, clean. That’s a solid afternoon session.
Sunday the 30th is a beauty: 6 ft swell from the SSW, 16-second period, combined energy 1449. Light cross-off wind all day, clean. That’s a great day for experienced surfers and strong intermediates.
But the absolute standout of the entire forecast is Monday the 31st. Morning has 7 ft of SSW swell, 16-second period, combined energy 3238. Wind is light offshore from the ENE—perfect for a reef break. The waves will be clean, powerful, and well-shaped. This is expert-level surf, no doubt. The afternoon stays clean but the wind goes cross-shore, so get it in the morning.
The only real gap is right at the start. There’s no surf recommended before the 16th, so the first few days of the period are flat. After that, it’s a solid run with only a few quiet days between the 21st and 24th.
Overall, Telescopes is the only break on the menu, and it’s a consistent reef. The 19th and the 31st are the two standouts, with the 31st being the pick of the whole period. Get out there.
Rusty.
Short Range ForecastLight rain (total 8mm), mostly falling on Sun morning. Warm (max 28°C on Sun morning, min 26°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummarySome drizzle, heaviest during Wed afternoon. Warm (max 28°C on Wed morning, min 26°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | |||||||||||||||
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) | S 15 | S 15 | SSW 14 | SSW 14 | SW 14 | SSW 18 | SSW 16 | SSW 16 | SSW 19 | SSW 18 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 16 | SSW 16 | SSW 15 | SSW 14 |
Wave Graph | |||||||||||||||||||||
736 | 343 | 394 | 529 | 288 | 677 | 1628 | 1429 | 3870 | 3790 | 4304 | 3786 | 3005 | 2620 | 1933 | 1676 | 1210 | 2709 | 1956 | 1602 | 1439 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off |
High Tide | 9:01PM1.12m | 9:05AM1.03m | 9:38PM1.10m | 9:38AM0.90m | 10:17PM1.04m | 10:09AM0.77m | 11:00PM0.97m | 10:39AM0.65m | 11:54PM0.90m | 11:18AM0.55m | 1:13AM0.85m | 1:47PM0.49m | 2:41AM0.85m | ||||||||
Low Tide | 2:31PM0.02m | 2:50AM0.14m | 2:59PM0.05m | 3:31AM0.20m | 3:27PM0.10m | 4:12AM0.27m | 3:57PM0.16m | 4:58AM0.35m | 4:30PM0.22m | 5:56AM0.41m | 5:10PM0.28m | 7:37AM0.45m | 6:09PM0.34m | ||||||||
6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | |
— | 6:27 | — | — | 6:27 | — | — | 6:27 | — | — | 6:27 | — | — | 6:25 | — | — | 6:25 | — | — | 6:25 | — | |
mm | 3 | 1 | 3 | — | — | — | 1 | — | — | — | 1 | — | — | — | — | — | — | — | — | — | 3 |
Temp °C | 28 | 28 | 27 | 28 | 28 | 28 | 28 | 28 | 27 | 28 | 28 | 28 | 28 | 28 | 27 | 28 | 28 | 28 | 28 | 28 | 27 |
Feels °C | 31 | 31 | 30 | 31 | 31 | 30 | 29 | 30 | 29 | 31 | 30 | 29 | 29 | 30 | 30 | 30 | 31 | 30 | 29 | 29 | 29 |
Swell 1 Height (m) Direction Period (s) | S 15 | S 15 | SSW 14 | SSW 14 | SW 14 | S 13 | SSW 16 | SSW 16 | SSW 19 | SSW 18 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 16 | SSW 16 | SSW 15 | SSW 14 |
736 | 343 | 394 | 529 | 288 | 513 | 1628 | 1429 | 3870 | 3790 | 4304 | 3786 | 3005 | 2620 | 1933 | 1676 | 1208 | 2709 | 1956 | 1602 | 1439 | |
Swell 2 Height (m) Direction Period (s) | SW 15 | S 10 | S 9 | SW 24 | S 19 | SSW 18 | SSW 22 | SSW 19 | WNW 8 | W 10 | WNW 10 | — | WNW 10 | WNW 11 | S 22 | S 19 | S 18 | W 10 | W 10 | ESE 5 | S 24 |
181 | 148 | 96 | 142 | 192 | 677 | 308 | 1234 | 6 | 8 | 10 | — | 10 | 11 | 37 | 893 | 1210 | 7 | 8 | 17 | 43 | |
Swell 3 Height (m) Direction Period (s) | WNW 10 | SW 15 | WNW 9 | SSW 19 | SW 24 | SSW 22 | WNW 8 | WNW 8 | W 10 | — | — | — | — | — | WNW 11 | WNW 11 | WNW 11 | W 16 | W 16 | W 9 | WNW 9 |
9 | 174 | 7 | 71 | 142 | 589 | 7 | 7 | 2 | — | — | — | — | — | 11 | 11 | 11 | 5 | 5 | 6 | 7 | |
Wind waves Height (m) Direction Period (s) | — | — | — | SSE 4 | SSE 11 | — | SSE 10 | SSE 9 | S 9 | SW 10 | SW 10 | SSW 10 | SW 10 | WSW 11 | SSE 5 | — | — | — | SSE 5 | S 6 | — |
— | — | — | 8 | 161 | — | 98 | 92 | 56 | 25 | 63 | 41 | 26 | 44 | 17 | — | — | — | 37 | 21 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 35 | 0 | 35 | 0 | 35 | 35 | 74 | 35 | 0 | 148 | 148 | 148 | 0 | 0 | 35 | 0 | 35 | 35 | 514 | 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.











