Impossibles Surf Break

Lat Long: 8.81° S 115.11° E

Impossibles Surf Forecast and Surf Report

Issued: 1 pm 13 Aug 2026 (local time)

Forecast update in  hr  min

Today's Impossibles sea temperature is
25.8° C
0.4° 

Impossibles surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Impossibles surf forecast from 13 Aug 2026:

  • Best quality surf: Saturday 15 Aug, 8AM (local time) - 7ft (2.2m), 17s period, SSW swell with offshore winds.
  • Most powerful swell: Wednesday 19 Aug, 11PM (local time) - 10ft (3.0m), 17s period, SSW swell with 4,931 kJ wave energy.
  • Next surfable swell (1★+): Thursday 13 Aug, 11PM (local time) - 8ft (2.5m), 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 Thursday (Aug 13) at 11PM. The primary swell is predicted to be 2.5m and 16s period with a secondary swell of 0.2m and 24s. 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 Wednesday (Aug 19) at 11PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 6s period and expected on Monday (Aug 17) at 8AM.

Wave TypeTime (WITA) & Date Wave Height & Period
Next good surf (1 star+)11PM (Thu 13th Aug)8ft (2.5m) 16s
Best Surf 8AM (Sat 15th Aug)7ft (2.2m) 17s
Most Powerful11PM (Wed 19th Aug)10ft (3.0m) 17s

Table - best surf conditions forecast for Impossibles over the next 16 days.


The Lowdown

G’day, it’s Rusty. We’ve only got one break on the menu this outlook, but what a run it’s shaping up to be. Impossibles is the name, and it’s a reef setup that’s very consistent and rated for advanced crew only. The water temp is sitting at 78°, which is about average for this time of year. The overall pattern is a long sequence of solid, clean surf, almost non-stop from Thursday August 13 through Friday August 28.

First up, Thursday August 13 afternoon. Clear skies, a steady offshore wind from the SE at 16 mph, and a solid 10ft SSW groundswell humming in at 16 seconds. That’s very long-period energy, and with the combined swell energy reading 4103 (strong to very strong wave energy), this is serious stuff. Over 8ft means experts only. The reef will handle this kind of long-period swell beautifully.

Friday August 14 morning keeps the clean theme going with SE offshore at 12 mph, and 7ft SSW swell, still 16 seconds. The energy is 2725, still strong. By the afternoon the wind turns cross-off but the swell holds at 7ft, 15 seconds. It stays solid and workable but not quite as tidy.

Saturday August 15 has a gorgeous morning: cloudy but 9 mph offshore from the SE, 7ft SSW swell with a very long 17-second period. Energy at 2895. The afternoon is just a tick bigger at 8ft, 17 seconds, with 12 mph offshore. This is prime.

Sunday August 16 brings clear skies and gentle offshore from the ESE at 9 mph, 7ft SSW, 16 seconds, energy 2243. The afternoon backs off slightly to 6ft with SE offshore. Still excellent.

Monday August 17 sees the swell drop to 5ft in the morning and 5ft in the afternoon, both with 14-second periods and clean offshore wind. Energy around 900 – moderate now. Still very good, but not the standout window.

We get a boost again Tuesday August 18: morning 6ft, afternoon 6ft, both with 16-second SSW groundswell and offshore ESE/SE winds, energy back into the strong range (2317 and 2577). Clean and powerful.

Wednesday August 19 is a standout. Morning brings 8ft at 18 seconds – that’s a monster very-long-period groundswell – with SE offshore 12 mph. Energy 3762. The afternoon is even chunkier: 8ft, 18 seconds, energy 4374. This is the heart of the swell window. Experts only.

Thursday August 20 keeps the heavy stuff coming: 10ft SW at 16 seconds in the morning, energy 4281. Afternoon holds at 8ft, 16 seconds. Offshore wind both sessions. This is world-class reef surf.

Friday August 21 has morning 7ft at 15 seconds, afternoon 8ft at 18 seconds with energy peaking at 4399 – the highest reading in the run. Offshore wind maintains.

Saturday August 22 starts with 8ft SSW, 16 seconds, offshore, then the afternoon goes cross-off with 7ft. Still good but not glassy.

Sunday August 23 through Tuesday August 25, the swell eases. Sizes run from 6ft down to 3ft, periods between 13 and 17 seconds. Still offshore winds, still clean. Energy stays in the moderate range. A nice run of smaller but well-shaped waves.

Wednesday August 26 to Friday August 28, we see a slight bump: 6ft to 7ft, periods 14–15 seconds, mostly offshore but a couple of afternoon cross-off sessions. Energy climbs back into the strong range, especially Friday afternoon at 3505.

The one true standout here is Wednesday August 19 through Thursday August 20 – that’s the peak. Huge 8ft to 10ft very-long-period SSW groundswell, clean offshore winds, max energy readings. If you’re an experienced surfer and you love a heavy reef, that’s your window. Don’t even think about it if you’re a beginner – this is well over 8ft.

Impossibles can get crowded sometimes, so expect company on the best days. The consistency is very high across this whole 16-day run – no gaps, just solid, clean surf for the crew who know what they’re doing.

Stay safe out there.

Rusty

Short Range Forecast

Mostly dry. Warm (max 25°C on Thu afternoon, min 24°C on Thu afternoon). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 25°C on Sun afternoon, min 25°C on Sun afternoon). Wind will be generally light.

Thu
13
Friday
14
Saturday
15
Sunday
16
Monday
17
Tuesday
18
Wednesday
19
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
5
4
4
3
4
4
4
4
4
4
3
3
3
3
4
4
4
4
5
5
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
3
SSW
16
2.5
SSW
16
2.2
SSW
16
2.2
SSW
15
2.1
SSW
15
2.2
SSW
17
2.4
SSW
17
2.2
SSW
16
2.2
SSW
16
1.9
SSW
15
1.7
SSW
14
1.5
SSW
14
1.4
SSW
14
1
SSW
18
1.7
SSW
16
1.9
SW
16
1.8
SW
16
2.5
SSW
18
2.5
SSW
18
3
SW
17
Wave Graph
Metric surfscale
Energy kJ
4103
3341
2379
1939
1776
2895
3202
2329
2243
1599
1175
886
763
651
1594
1892
1551
3747
4354
4715
Wind (km/h)
25
SE
15
SE
20
SE
20
SSE
15
SE
15
SE
20
SE
15
SE
15
ESE
20
SE
15
ESE
20
ESE
20
SE
20
E
20
SE
20
ESE
20
ESE
20
SE
20
ESE
15
ESE
Wind State
off
off
off
cross-off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
High Tide
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
1:11PM2.15m
1:26AM2.51m
1:41PM1.92m
1:55AM2.35m
Low Tide
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
7:16AM0.37m
7:06PM0.45m
7:51AM0.51m
7:29PM0.62m
clear
part cloud
part cloud
clear
part cloud
cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
part cloud
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:30
6:28
6:28
6:28
6:28
6:28
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:17
6:17
6:17
6:17
6:17
6:17
6:17
 mm
Temp °C
25
24
24
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
Feels °C
25
24
25
25
26
26
25
27
27
26
28
26
26
27
27
26
26
26
26
27
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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.

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