
Surf Forecasts:
Impossibles surf forecast from 11 Aug 2026:
- Best quality surf: Tuesday 11 Aug, 8PM (local time) - 10ft (3.0m), 16s period, SSW swell with offshore winds.
- Most powerful swell: Tuesday 11 Aug, 2PM (local time) - 10ft (3.0m), 16s period, SSW swell with 5,012 kJ wave energy.
- Next surfable swell (1★+): Tuesday 11 Aug, 8PM (local time) - 10ft (3.0m), 16s period with SSW swell.
Best Forecast Surf Conditions for Impossibles this week:
The surf forecast for Impossibles over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Aug 11) at 8PM. The primary swell is predicted to be 3.0m and 16s period with a secondary swell of 0.4m and 7s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Impossibles in the next 16 days are 3.0m 16s and forecast to arrive on Tuesday (Aug 11) at 2PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 6s period and expected on Thursday (Aug 13) at 5AM.
| Wave Type | Time (WITA) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Tue 11th Aug) | 10ft (3.0m) 16s |
| Best Surf | 8PM (Tue 11th Aug) | 10ft (3.0m) 16s |
| Most Powerful | 2PM (Tue 11th Aug) | 10ft (3.0m) 16s |
Table - best surf conditions forecast for Impossibles over the next 16 days.
The Lowdown
Alright, grab a coffee. It's Rusty, and I've got the scoop on the local stretch. We're looking at a solid run, so let's get into it.
The first call is on Tuesday, August 11th and right out of the gate, it's a ripper. We're talking about Impossibles, and this is the one to circle on your calendar. The wind's going to be offshore and clean all day, and we've got a proper, powerful SSW groundswell pulsing in with a very long 17 second period. The combined energy rating is a massive 5261, which is just insane – you'll feel that water moving. This is big, powerful stuff at 10 ft though, so this is strictly for the experienced crew; beginners should give this place a wide berth. The water temp is sitting at a normal 79°, so the water feels about right for the time of year. This is the standout of the whole outlook.
The run continues into Wednesday, August 12th, with the swell easing a touch but still holding at 7 ft from the SSW. More top-notch, clean, offshore conditions. This is still a high-quality, expert-only day. The same goes for Thursday, though the wind goes a little cross-offshore on the 13th, so it won't be as pristine as the first two days, but it’s still surfable for the advanced crew.
The first weekend – Saturday and Sunday, August 15th & 16th – the swell backs off a little more, with cross-offshore winds. By Monday, August 17th, we drop to around 5 ft to 5 ft, but the wind is still clean and offshore. This is when the wave size gets a bit more user-friendly for the strong intermediate surfer.
Then we hit another interesting window. Tuesday, August 18th, the swell drops to 4 ft, but the period jumps to a massive 19 seconds. The combined energy is still high at 2719. This is a classic long-period groundswell, so while the height is down, the push is real. This kind of swell will be working best on the reef at Impossibles; it might close out a bit on a beach break, but here it should hold some nice shape.
Looking further out, Wednesday, August 19th sees a bump back up to 8 ft with clean offshore winds. Then Thursday, August 20th brings a fresh breeze, pushing up to 19 mph, but still offshore from the ESE. Swell is 7 ft from the SW.
We have a long, consistent run of surfable days through the second week, all with clean offshore winds and solid SSW groundswell. There's plenty of wave energy (mostly in the 2000-3000 range). The crowd factor at Impossibles is listed as "sometimes," but with this level of quality and consistency over such a long period, don't be surprised to see more than a few locals out there for the early sessions.
Honestly, the entire 16-day window is a winner for crew who know what they're doing, but that opening Tuesday is the absolute bullet. Don't sleep on it.
- Rusty
Short Range ForecastMostly dry. Warm (max 25°C on Tue night, min 24°C on Tue morning). Wind will be generally light. | Days 4-6 Weather SummarySome drizzle, heaviest during Sat night. Warm (max 25°C on Sat afternoon, min 24°C on Fri morning). Wind will be generally light. | ||||||||||||||||||||
Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | |||||||||||||||
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 17 | SSW 16 | SSW 16 | SSW 17 | SSW 16 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 18 |
Wave Graph | |||||||||||||||||||||
5261 | 3369 | 3040 | 2726 | 2054 | 1585 | 3894 | 3823 | 3341 | 2379 | 1737 | 1822 | 2895 | 2862 | 2329 | 2080 | 1642 | 1191 | 996 | 752 | 659 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | off | off | off | off | cross-off | cross-off | off | off | cross-off | off | cross-off | cross-off | off | off | off | off | off | off | off |
High Tide | 8:19AM2.33m | 9:48PM1.83m | 9:20AM2.51m | 10:24PM2.08m | 10:09AM2.64m | 10:56PM2.31m | 10:51AM2.69m | 11:28PM2.49m | 11:30AM2.66m | 11:59PM2.61m | 12:06PM2.54m | 00:29AM2.65m | 12:40PM2.37m | 00:58AM2.61m | |||||||
Low Tide | 3:26PM0.34m | 3:03AM0.91m | 4:07PM0.18m | 3:57AM0.67m | 4:42PM0.08m | 4:42AM0.47m | 5:15PM0.05m | 5:24AM0.33m | 5:45PM0.08m | 6:03AM0.27m | 6:14PM0.16m | 6:40AM0.29m | 6:41PM0.29m | ||||||||
6:31 | — | — | 6:30 | — | — | 6:30 | — | — | 6:30 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | |
— | 6:17 | — | — | 6:17 | — | — | 6:17 | — | — | 6:17 | — | — | 6:17 | — | — | 6:17 | — | — | 6:17 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — |
Temp °C | 24 | 24 | 25 | 24 | 25 | 25 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
Feels °C | 24 | 24 | 25 | 23 | 24 | 25 | 25 | 24 | 25 | 24 | 23 | 24 | 24 | 25 | 26 | 27 | 26 | 27 | 26 | 26 | 27 |
Swell 1 Height (m) Direction Period (s) | SSW 17 | SSW 16 | SSW 16 | SSW 17 | SSW 16 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 13 |
5261 | 3369 | 3040 | 2726 | 2054 | 1585 | 3894 | 3823 | 3341 | 2379 | 1737 | 1822 | 2895 | 2862 | 2329 | 2080 | 1642 | 1191 | 996 | 752 | 590 | |
Swell 2 Height (m) Direction Period (s) | — | SSW 19 | — | SSW 21 | S 20 | S 13 | — | — | SSW 24 | SSW 21 | SSW 21 | SSW 19 | — | — | SSE 6 | — | — | SE 5 | SW 24 | SW 20 | SSW 18 |
— | 1288 | — | 45 | 196 | 862 | — | — | 54 | 260 | 333 | 788 | — | — | 20 | — | — | 16 | 23 | 98 | 659 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | SSW 21 | — | — | — | — | — | — | — | SSE 7 | — | — | — | — | — | S 26 | — | SSW 24 | SE 6 |
— | — | — | 86 | — | — | — | — | — | — | — | 38 | — | — | — | — | — | 13 | — | 55 | 29 | |
Wind waves Height (m) Direction Period (s) | — | SE 8 | SE 7 | SE 5 | SE 5 | — | — | ESE 5 | SE 5 | SSE 8 | SSE 8 | SE 7 | SE 5 | SE 5 | SE 6 | SSE 5 | SE 5 | SE 5 | SE 5 | SE 5 | — |
— | 57 | 29 | 19 | 32 | — | — | 23 | 22 | 88 | 72 | 52 | 21 | 27 | 34 | 19 | 21 | 28 | 15 | 25 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in The Bukit - Bali | |||||||||||||||||||||
Best forecast wave conditions in Indonesia | |||||||||||||||||||||
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Information about the Impossibles Surf forecast
The above surf forecast table for Impossibles provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Impossibles can be found by selecting the local surf guide option on the grey menu. Our Impossibles 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 (Impossibles) 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 Impossibles 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.
Impossibles is 12 km (7 miles) from the city of Kuta. If you plan a holiday in The Bukit - Bali, look for hotels and other accommodation in Kuta. Kuta has rooms for a wide range of budgets as well as car hire and transport links.











