Surf Forecasts:
Scarecrows surf forecast from 19 Aug 2026:
- Best quality surf: Thursday 20 Aug, 1AM (local time) - 8ft (2.5m), 17s period, SSW swell with cross-offshore winds.
- Most powerful swell: Wednesday 19 Aug, 10PM (local time) - 10ft (3.0m), 17s period, SSW swell with 4,409 kJ wave energy.
- Next surfable swell (1★+): Thursday 20 Aug, 1AM (local time) - 8ft (2.5m), 17s period with SSW swell.
Best Forecast Surf Conditions for Scarecrows this week:
The surf forecast for Scarecrows over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Aug 20) at 1AM. The primary swell is predicted to be 2.5m and 17s period with a secondary swell of 0.4m and 10s. Another secondary swell of 0.4m and 8s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Scarecrows in the next 16 days are 3.0m 17s and forecast to arrive on Wednesday (Aug 19) at 10PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 5s period and expected on Friday (Aug 21) at 10AM.
| Wave Type | Time (WIB) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Thu 20th Aug) | 8ft (2.5m) 17s |
| Best Surf | 1AM (Thu 20th Aug) | 8ft (2.5m) 17s |
| Most Powerful | 10PM (Wed 19th Aug) | 10ft (3.0m) 17s |
Table - best surf conditions forecast for Scarecrows over the next 16 days.
The Lowdown
Alright, surfers, Rusty here with the same outlook in feet.
We’ve got a solid run of groundswell on the cards at Scarecrows, but you’ll need to be an advanced surfer to handle it. This is a consistent reef break that’s exposed to the swell, with an optimum direction from the southwest. The water is sitting at 85°F, which is about 0.9°F warmer than normal – just a touch of tropical warmth.
The forecast kicks off Wednesday, August 19th, but honestly, it’s a write-off. We’ve got 8ft to 10ft SSW swell, but with a cross-onshore wind and a risk of thunderstorms, it’s going to be choppy and messy. Not worth paddling out.
Thursday, August 20th, is where things start to look up. The swell drops a touch to 8ft, still from the SSW with a very long period of 16 seconds, and the wind swings SE to become a clean cross-off. The wave energy is still strong (3522). The morning is marginal, but the afternoon is flagged as "excellent for experienced surfers" with a 8ft swell and clean conditions. That’s your first real window.
Friday, August 21st, the swell eases to 7ft in the morning with clean cross-off winds, but the wind swings southerly and goes cross-shore in the afternoon, bringing chop. The morning is the pick.
Saturday, August 22nd, and Sunday, August 23rd, are a mixed bag. The swell is still pushing 7ft to 6ft, but the wind is fickle, with some cross-off periods and some cross-shore chop. There’s a risk of thunderstorms on and off. The energy is dropping from 2331 to 1805. It’s surfable for the experienced crew, but not the best.
Monday, August 24th, the swell dips to 4ft to 6ft, with cross-shore winds and a risk of storms. The energy is down to 1285. A bit of a lull, but still rideable for the die-hards.
The real standout of the whole forecast is the window from Monday, August 31st, to Tuesday, September 1st. Hold on to your boards. The swell jumps back to 7ft to 8ft from the SW, with a very long period of 18 seconds, and the wind is light and offshore. The wave energy is massive – 3241 to 3833. The guidance says "excellent surf conditions for experienced surfers" with a score of 5. This is the best on offer. The longer period will make for clean, powerful lines at this reef, but it’ll be a handful for anyone without experience.
The rest of the run into the second week is a slow fade. Thursday, August 27th, has a brief spike of 3ft to 4ft but with a very long period of 19 seconds, giving it some punch. Friday, August 28th, is clean with 6ft. By the time we hit Sunday, August 30th, the swell drops to 2ft, but with a 22-second period – that’s a very long groundswell, which will break clean and make for easy paddling, but it’s small.
Overall, the first week is about persistence and picking the clean windows, but the end of August into September is where the magic happens.
Rusty
Short Range ForecastModerate rain (total 17mm), heaviest on Sat morning. Warm (max 28°C on Wed afternoon, min 27°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 42mm), heaviest during Sun night. Warm (max 28°C on Sat afternoon, min 26°C on Mon night). Wind will be generally light. | |||||||||||||||||||
Wed 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | ||||||||||||||
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 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 18 | S 14 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 |
Wave Graph | ||||||||||||||||||||
4565 | 3985 | 3232 | 2821 | 2386 | 1693 | 1588 | 2751 | 2379 | 1737 | 1321 | 879 | 796 | 2344 | 836 | 1752 | 1349 | 936 | 742 | 595 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-off | cross-off | cross | cross-off | cross-off | cross | cross-off | cross-off | cross | cross-off | cross | cross | cross-off | cross | cross | cross | cross | cross | cross |
High Tide | 10:42PM0.81m | 10:14AM0.53m | 11:33PM0.75m | 10:48AM0.44m | 00:47AM0.71m | 12:42PM0.37m | 2:20AM0.70m | 3:17PM0.38m | 3:34AM0.75m | 4:27PM0.45m | 4:25AM0.81m | 5:07PM0.52m | ||||||||
Low Tide | 4:55AM0.32m | 4:07PM0.18m | 6:08AM0.37m | 4:42PM0.23m | 9:38AM0.36m | 5:39PM0.28m | 10:48AM0.30m | 7:29PM0.31m | 11:11AM0.25m | 9:13PM0.29m | 11:31AM0.19m | 10:15PM0.25m | ||||||||
— | — | 6:24 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | |
6:27 | — | — | 6:25 | — | — | 6:25 | — | — | 6:25 | — | — | 6:25 | — | — | 6:25 | — | — | 6:24 | — | |
mm | 2 | 3 | — | — | — | — | 3 | 5 | 4 | — | 6 | 7 | 1 | 10 | 5 | — | 7 | 6 | 1 | 5 |
Temp °C | 28 | 28 | 28 | 28 | 27 | 28 | 28 | 27 | 28 | 28 | 27 | 27 | 27 | 27 | 27 | 28 | 27 | 27 | 27 | 27 |
Feels °C | 29 | 31 | 30 | 30 | 29 | 30 | 30 | 29 | 31 | 30 | 29 | 29 | 28 | 29 | 29 | 28 | 28 | 28 | 28 | 28 |
Swell 1 Height (m) Direction Period (s) | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 18 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 |
4565 | 3985 | 3232 | 2821 | 2386 | 1693 | 1588 | 2751 | 2379 | 1737 | 1321 | 879 | 743 | 2344 | 597 | 1752 | 1349 | 936 | 742 | 595 | |
Swell 2 Height (m) Direction Period (s) | WNW 10 | WSW 10 | WNW 10 | WSW 10 | WSW 11 | S 19 | SSW 18 | WNW 10 | WNW 10 | WNW 9 | S 18 | SSW 19 | SSW 19 | WNW 11 | SSW 20 | WNW 8 | WNW 10 | SSE 8 | WNW 8 | S 8 |
11 | 34 | 10 | 37 | 37 | 760 | 817 | 19 | 18 | 15 | 225 | 502 | 796 | 11 | 75 | 7 | 9 | 94 | 7 | 93 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | SSW 22 | WNW 11 | WNW 11 | W 16 | W 16 | SSW 24 | SSW 22 | WNW 9 | WNW 8 | — | WNW 9 | W 10 | W 10 | WNW 9 | WNW 8 | WNW 8 |
— | — | — | — | 91 | 22 | 22 | 5 | 5 | 55 | 263 | 15 | 6 | — | 8 | 2 | 2 | 8 | 7 | 6 | |
Wind waves Height (m) Direction Period (s) | WSW 10 | WSW 8 | WSW 10 | — | SSE 4 | SSE 5 | SSE 5 | — | — | — | — | SSE 5 | SSE 5 | — | S 14 | SSE 7 | SSE 7 | — | SSE 8 | — |
67 | 20 | 39 | — | 11 | 28 | 22 | — | — | — | — | 39 | 51 | — | 836 | 105 | 111 | — | 96 | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 41 | 41 | 41 | 11 | 0 | 11 | 41 | 356 | 11 | 41 | 41 | 0 | 41 | 424 | 15 | 11 | 424 | 11 | 0 | 41 |
Best forecast wave conditions in Mentawi Islands | ||||||||||||||||||||
Best forecast wave conditions in Indonesia | ||||||||||||||||||||
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Information about the Scarecrows Surf forecast
The above surf forecast table for Scarecrows provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Scarecrows can be found by selecting the local surf guide option on the grey menu. Our Scarecrows 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 (Scarecrows) 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 Scarecrows 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 Scarecrows, camping, hotels and holiday cottages in Mentawi Islands, consider staying in Padang which is 159 km (99 miles) away.











