Surf Forecasts:
Impossibles surf forecast from 15 Aug 2026:
- Best quality surf: Wednesday 19 Aug, 5PM (local time) - 8ft (2.5m), 17s period, SSW swell with offshore winds.
- Most powerful swell: Thursday 20 Aug, 2AM (local time) - 10ft (3.0m), 17s period, SW swell with 4,501 kJ wave energy.
- Next surfable swell (1★+): Saturday 15 Aug, 11PM (local time) - 7ft (2.2m), 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 Saturday (Aug 15) at 11PM. The primary swell is predicted to be 2.2m and 16s period with a secondary swell of 0.5m and 5s. 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 17s and forecast to arrive on Thursday (Aug 20) at 2AM. Winds are predicted to be 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 Sunday (Aug 23) at 2AM.
| Wave Type | Time (WITA) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Sat 15th Aug) | 7ft (2.2m) 16s |
| Best Surf | 5PM (Wed 19th Aug) | 8ft (2.5m) 17s |
| Most Powerful | 2AM (Thu 20th Aug) | 10ft (3.0m) 17s |
Table - best surf conditions forecast for Impossibles over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s have a look at what’s coming down the line over the next couple of weeks.
We’ve got one spot, and it’s a proper gem for the crew that can handle it: Impossibles (reef break). This place is an advanced-only setup that’s very consistent, so it almost always has something rumbling in. It’s fairly exposed to the swell, and the optimal direction is a solid SSW, which is what we’re seeing for the bulk of this run. That’s a good sign.
The water temp is running about average for the time of year, so no surprises there.
The action kicks off on Sunday the 16th. Morning sees a clean 7 ft SSW groundswell at a very long 16 seconds, with a light offshore breeze from the ESE. The wave energy is pumping hard (2243), making for excellent conditions, but that size is starting to push it for anyone but experienced surfers. It holds through the afternoon at 7 ft with a moderate offshore, still excellent.
Monday the 17th backs off a touch to 5 ft in the morning, with a 14-second period (still solid groundswell). Moderate offshore keeps it clean. The afternoon drops to 5 ft, gentle offshore. Very good surf, but the standout energy is definitely in the first and middle days.
Tuesday the 18th is a real highlight. Morning kicks back up to 6 ft, 16 seconds, with a moderate offshore and massive energy (2883). The afternoon switches slightly to a 6 ft SW direction, still excellent. This day has a bit of everything – size, power, and clean conditions.
Wednesday the 19th is the peak of the week. Morning brings a 8 ft SSW groundswell, 18 seconds, with a moderate offshore and massive energy (3535). The afternoon hits a solid 8 ft, 17 seconds, with energy cracking 4037. This is big, powerful, and clean – expert territory only, but it’s the best on offer for experienced surfers looking for a proper challenge.
Thursday the 20th holds at 8 ft through the day, with the wind staying offshore and moderate. Still excellent, but you’re dealing with serious size.
Things start to get a bit trickier from Friday the 21st through Sunday the 23rd. The swell stays solid – 6 ft to 8 ft – but the wind picks up to a fresh 19 mph offshore on Friday morning, and we start seeing “cross-off” winds in the afternoons. The energy is still there, but the conditions get a little mixed. Still rideable, but not as pristine as the midweek window.
Monday the 24th sees a drop to 7 ft in the morning with a moderate offshore, but the afternoon goes cross-off again. That pattern of clean mornings and cross-off afternoons sticks around for a few days.
From Tuesday the 25th to Thursday the 27th, the size settles into the 5 ft to 5 ft range. The swell periods are still solid, and the wind remains offshore most mornings. These are very good, more manageable days, especially for someone comfortable at a reef break. The energy dips a bit but is still respectable.
Friday the 28th is another standout morning. 7 ft SW groundswell, 16 seconds, and a light 6 mph offshore breeze. The energy is strong (1988), and it’s clean as a whistle. That morning session is prime.
The last few days, Saturday the 29th through Monday the 31st, stay good. Saturday morning is 5 ft but cross-off, though the afternoon swings back to offshore. Sunday the 30th has a gentle offshore morning with a 5 ft SW groundswell at a very long 19 seconds – that’s going to be a slow, powerful, and super clean session at a reef break like Impossibles. The energy is high. Then Monday the 31st closes out the run with an 8 ft SW groundswell, 17 seconds, and a light offshore breeze. Energy is through the roof at 4511. That’s a monster day, and it caps off the whole window with a bang.
So, the best of the best? Wednesday the 19th is the biggest and most powerful day, but it’s for experts only. The standout for a slightly more manageable but still excellent session would be Sunday the 30th morning – that 19-second groundswell at 5 ft with gentle offshore winds is going to reel in beautifully at this reef.
If you’re not an expert, stay off the biggest days, but the 5 ft to 6 ft windows from Monday 17th and the end of the month are still going to offer some very clean, quality waves for those with the skill.
Rusty.
Short Range ForecastMostly dry. Warm (max 25°C on Sat night, min 25°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 25°C on Tue night, min 25°C on Tue night). Mainly fresh winds. | ||||||||||||||||||
Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | ||||||||||||||
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 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 18 | SSW 16 | SW 16 | SW 16 | SSW 18 | SSW 17 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SSW 17 | SSW 16 |
Wave Graph | |||||||||||||||||||
2535 | 2243 | 1857 | 1175 | 886 | 763 | 651 | 1594 | 1467 | 1412 | 3535 | 4037 | 4501 | 3808 | 3137 | 2352 | 1343 | 3192 | 3010 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off |
High Tide | 11:59PM2.61m | 12:06PM2.54m | 00:29AM2.65m | 12:40PM2.37m | 00:58AM2.61m | 1:11PM2.15m | 1:26AM2.51m | 1:41PM1.92m | 1:55AM2.35m | 2:11PM1.68m | 2:25AM2.17m | 2:45PM1.45m | 3:04AM1.98m | ||||||
Low Tide | 6:03AM0.27m | 6:14PM0.16m | 6:40AM0.29m | 6:41PM0.29m | 7:16AM0.37m | 7:06PM0.45m | 7:51AM0.51m | 7:29PM0.62m | 8:29AM0.68m | 7:49PM0.80m | 9:16AM0.87m | 8:05PM0.98m | |||||||
— | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:26 | — | — | 6:26 | — | — | |
6:17 | — | 6:17 | — | — | 6:17 | — | — | 6:17 | — | — | 6:17 | — | — | 6:17 | — | — | 6:17 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 |
Temp °C | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
Feels °C | 26 | 27 | 25 | 27 | 26 | 26 | 27 | 25 | 26 | 26 | 26 | 24 | 26 | 25 | 24 | 25 | 25 | 23 | 24 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 16 | SW 16 | SW 16 | SSW 18 | SSW 17 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SSW 17 | SSW 16 |
2535 | 2243 | 1857 | 1175 | 886 | 763 | 472 | 1594 | 1467 | 1412 | 3535 | 4037 | 4501 | 3808 | 3137 | 2352 | 1343 | 3192 | 3010 | |
Swell 2 Height (m) Direction Period (s) | SE 5 | — | — | SE 5 | SW 26 | SSW 20 | SSW 18 | SSW 21 | SSW 20 | SSW 19 | — | — | SE 6 | — | — | — | SSW 18 | — | — |
12 | — | — | 18 | 25 | 75 | 651 | 584 | 961 | 1242 | — | — | 31 | — | — | — | 1131 | — | — | |
Swell 3 Height (m) Direction Period (s) | SSE 6 | — | — | S 26 | — | SSW 24 | SSW 24 | SSW 21 | — | SE 6 | — | — | — | — | — | — | — | — | — |
3 | — | — | 13 | — | 55 | 109 | 705 | — | 29 | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | SE 5 | SE 5 | SE 5 | ESE 6 | SE 6 | SE 6 | SE 6 | SE 5 | SE 5 | ESE 6 | SE 6 | SE 6 | ESE 6 | SE 6 | SE 7 | SE 6 | SE 7 | SE 7 | SE 6 |
19 | 16 | 25 | 40 | 24 | 32 | 27 | 17 | 40 | 65 | 30 | 51 | 69 | 49 | 102 | 104 | 169 | 151 | 100 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 13 | 38 | 38 | 40 |
Best forecast wave conditions in The Bukit - Bali | |||||||||||||||||||
Best forecast wave conditions in Indonesia | |||||||||||||||||||
Header Global | |||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
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.











