
Surf Forecasts:
Impossibles surf forecast from 4 Sep 2026:
- Best quality surf: Saturday 5 Sep, 8AM (local time) - 6ft (1.9m), 14s period, SSW swell with offshore winds.
- Most powerful swell: Wednesday 9 Sep, 8AM (local time) - 8ft (2.5m), 16s period, SSW swell with 3,455 kJ wave energy.
- Next surfable swell (1★+): Saturday 5 Sep, 8AM (local time) - 6ft (1.9m), 14s 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 (Sep 05) at 8AM. The primary swell is predicted to be 1.9m and 14s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Impossibles in the next 16 days are 2.5m 16s and forecast to arrive on Wednesday (Sep 09) at 8AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 5s period and expected on Sunday (Sep 06) at 2AM.
| Wave Type | Time (WITA) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Sat 5th Sep) | 6ft (1.9m) 14s |
| Best Surf | 8AM (Sat 5th Sep) | 6ft (1.9m) 14s |
| Most Powerful | 8AM (Wed 9th Sep) | 8ft (2.5m) 16s |
Table - best surf conditions forecast for Impossibles over the next 16 days.
The Lowdown
Alright, Rusty here, lookin' at the charts for the next couple of weeks and I gotta say, there's a solid run of swell on the horizon for the reef.
We're starting with a bang on Saturday, September 5th. The morning session at Impossibles is looking clean with a moderate offshore breeze from the ESE, grooming a solid 6 ft SSW groundswell. The water temp is sitting at 79°, which is pretty average for this time of year—nothing weird going on there. The wave energy is pumping, clocking in at 1826 (moderate to strong), and with a 16-second period, this is a proper long-period groundswell. That's a lot of water moving, creating some serious shape on the reef. The afternoon gets a little bigger, hitting 7 ft, but the wind swings cross-offshore, making it a bit less crisp. This is a solid start.
Sunday the 6th keeps the swell pumping, but the wind stays cross-off all day, which takes the edge off the perfection. Still, 7 ft SSW on the morning with a 17-second period (2844 energy) is a heavy amount of water. This is expert territory, no doubt.
Monday the 7th through to the end of the first week is a mixed bag. The swell holds between 5 ft and 8 ft, but the wind is consistently cross-off. The standout so far in the first week is that Saturday morning, and the Wednesday afternoon on the 9th, with a 8 ft SSW swell and a gentle cross-off breeze, offering some cleaner lines.
Now, the real standout that's got me excited is the second week. Starting Sunday, September 13th, we have a string of absolute beauty. The morning of the 13th is clean with a 7 ft SW groundswell (2986 energy) and a moderate offshore breeze, and the afternoon is even better—8 ft SW (3087 energy) with a gentle offshore breeze. That's as good as it gets for a reef setup like this.
Then Monday the 14th and Tuesday the 15th hold up with offshore winds, keeping the 6 ft to 6 ft range clean. The mid-week, Wednesday the 16th, is another cracker: 7 ft SSW swell with a 17-second period (2404 energy) and a solid offshore breeze.
The best of the best, though, looks like the final weekend. Sunday, September 20th, is firing. The morning has a 6 ft SW swell (2149 energy) with a strong offshore breeze, and the afternoon just gets better—7 ft SW (2205 energy) with a gentle offshore breeze. That's the kind of day you call in sick for.
This break is very consistent, being a reef, so it handles the swell well. But with that much energy and long period, the sets will be big and powerful—this is strictly for advanced surfers. Crowds are possible here, so get out early.
Overall, we've got a 16-day window that's looking really promising. There's no gap in the surf; it's pretty much on from the start. The first week has some good windows, but the second week, especially September 13th and September 20th, are the ones you want to circle. A long-range promise like that is worth keeping an eye on.
Rusty.
Short Range ForecastLight rain (total 3mm), mostly falling on Sat night. Warm (max 25°C on Sat morning, min 24°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 25°C on Tue morning, min 24°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | |||||||||||||||
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 16 | SSW 16 | SSW 14 | SSW 17 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 19 | SSW 18 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SW 15 |
Wave Graph | |||||||||||||||||||||
1826 | 2028 | 1475 | 2612 | 1245 | 2242 | 1797 | 1513 | 1155 | 1451 | 1944 | 2110 | 3182 | 2615 | 2061 | 1946 | 2372 | 2318 | 1982 | 1982 | 1271 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | off |
High Tide | 2:45PM1.48m | 2:59AM2.17m | 4:52PM1.28m | 4:46AM1.99m | 8:19PM1.46m | 7:11AM2.04m | 9:00PM1.74m | 8:29AM2.23m | 9:31PM2.03m | 9:20AM2.41m | 10:00PM2.30m | 10:02AM2.53m | 10:28PM2.52m | ||||||||
Low Tide | 9:04AM0.69m | 7:59PM0.94m | 10:43AM0.86m | 8:48PM1.18m | 1:15PM0.81m | 00:24AM1.29m | 2:30PM0.61m | 2:16AM1.05m | 3:12PM0.43m | 3:12AM0.76m | 3:46PM0.29m | 3:54AM0.49m | 4:16PM0.21m | 4:32AM0.28m | |||||||
6:18 | — | — | 6:18 | — | — | 6:18 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | |
— | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:15 | — | — | 6:15 | — | |
mm | — | — | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 |
Temp °C | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 24 | 25 | 25 | 24 | 24 | 24 | 25 | 26 | 26 |
Feels °C | 25 | 25 | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 26 | 25 | 25 | 25 | 26 | 27 | 25 | 24 | 25 | 26 | 27 | 27 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 16 | SSW 14 | SSW 17 | SSW 13 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 12 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SW 15 |
1826 | 2028 | 1475 | 2612 | 892 | 2242 | 1797 | 1513 | 1155 | 1236 | 1376 | 2110 | 3182 | 2615 | 2061 | 1946 | 2372 | 2318 | 1982 | 1982 | 1271 | |
Swell 2 Height (m) Direction Period (s) | — | — | SSW 18 | S 18 | SSW 16 | — | SSW 22 | SSW 22 | SSW 21 | SSW 19 | SSW 18 | SSW 12 | — | — | SSW 18 | SSW 18 | — | SW 26 | SSW 26 | SW 24 | SW 24 |
— | — | 541 | 232 | 1245 | — | 47 | 91 | 487 | 1451 | 1944 | 964 | — | — | 209 | 257 | — | 27 | 66 | 142 | 142 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | SW 13 | — | — | — | — | — | — | — | — | — | — | SW 24 |
— | — | — | — | — | — | — | — | — | 87 | — | — | — | — | — | — | — | — | — | — | 142 | |
Wind waves Height (m) Direction Period (s) | SE 5 | — | SE 5 | SE 5 | SE 5 | — | ESE 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | S 9 |
24 | — | 40 | 21 | 15 | — | 13 | — | — | — | — | — | — | — | — | — | — | — | — | — | 113 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 40 | 82 | 7 | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 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.










