Surf Forecasts:
Ketewel surf forecast from 31 Aug 2026:
- Most powerful swell: Sunday 6 Sep, 11PM (local time) - 8ft (2.4m), 16s period, SSW swell with 2,801 kJ wave energy.
Best Forecast Surf Conditions for Ketewel this week:
The most powerful waves expected at Ketewel in the next 16 days are 2.4m 16s and forecast to arrive on Sunday (Sep 06) at 11PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 7s period and expected on Tuesday (Sep 01) at 11AM.
| Wave Type | Time (WITA) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11PM (Sun 6th Sep) | 8ft (2.4m) 16s |
Table - best surf conditions forecast for Ketewel over the next 16 days.
The Lowdown
Right then, Rusty here. Let’s have a look at what’s cookin’ for the next couple of weeks on this stretch of coast.
We’re in for a pretty frustrating run, to be honest. For the first week and a half or so, the wind is just not playing ball. It’s mostly a cross-on or onshore breeze from the ESE through to SE, which is gonna leave things choppy and messy. There’s a decent amount of energy in the water, but the quality just isn't there for a proper surf. This is a reef set-up, so it needs clean conditions to shine, and we’re not gettin’ ‘em.
The swell is mainly a long-period groundswell from the SSW, and there’s plenty of size – mostly in the 5 ft to 8 ft range. The combined energy is strong, often in the thousands (1473 to 3753), but that doesn’t mean much when the wind is trashing it. For the advanced crew, a lot of these days will be frustrating, and for anyone else, it’s a total write-off. The water temp is around 81°, which is pretty average for this time of year, so no surprises there.
Let's break it down. The first recommendation doesn't pop up until Saturday the 5th of September, and even then, it’s just a “marginal” call. That’s a solid 5-day wait from the start of this outlook with nothing worth paddling for. From that point on, right through to Tuesday the 15th of September, every single session is rated as marginal at best.
Now, for the one small light in the tunnel. The standout window, if we can even call it that, looks to be around Tuesday the 8th of September. On the Tuesday afternoon, we get a little lull in the wind – a light breeze from the SSE, putting it onshore but glassy enough to clean things up. The swell is a solid 8 ft from the SSW, with a very long period of 18 seconds. That’s a proper groundswell. The combined energy is a massive 3753. This is a big, powerful swell. It will be breaking a bit straight at this reef, but for an expert surfer, that’s some serious juice. This is the closest we get to a top pick, but it’s still only a 2 out of 10, so keep your expectations low.
Wednesday the 9th of September morning is another one to eye, with the same light onshore flow, 8 ft SSW swell, and a score of 3 out of 10. Similar deal.
Any other day, you’re battling 9 to 12 mph cross-on winds, which is just no good for this spot. Because of the consistent onshore wind and the exposed nature of the break, this setup honestly looks more interesting for kite surfing than paddle surfing through this whole period. The reef is an advanced-only wave anyway, and with the wind in this direction, the quality just isn't there for us.
All in all, a tough stretch. There’s plenty of swell, but the conditions are stubborn. Keep your eye on that window around the 8th and 9th of September for the best chance.
Rusty.
Short Range ForecastMostly dry. Warm (max 27°C on Tue morning, min 23°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 3mm), mostly falling on Sat night. Warm (max 27°C on Fri afternoon, min 24°C on Thu night). Wind will be generally light. | ||||||||||||||||||
Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | ||||||||||||||
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 18 | SSW 18 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SW 14 | SSW 14 | SSW 16 | SSW 16 | SSW 14 | SSW 14 | SSW 17 | SSW 16 |
Wave Graph | |||||||||||||||||||
1683 | 1944 | 1821 | 1910 | 1614 | 1321 | 1141 | 933 | 770 | 561 | 630 | 395 | 672 | 1411 | 1551 | 1399 | 1341 | 1738 | 2696 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | on | on | on | cross-on | on | on |
High Tide | 00:03AM2.62m | 12:18PM2.33m | 00:29AM2.64m | 12:50PM2.16m | 00:58AM2.61m | 1:23PM1.94m | 1:30AM2.51m | 2:00PM1.69m | 2:08AM2.35m | 2:52PM1.44m | 3:03AM2.15m | 5:18PM1.25m | 4:52AM1.98m | ||||||
Low Tide | 6:17AM0.24m | 6:14PM0.32m | 6:51AM0.25m | 6:39PM0.43m | 7:28AM0.34m | 7:04PM0.58m | 8:12AM0.49m | 7:31PM0.75m | 9:11AM0.69m | 8:01PM0.95m | 10:54AM0.85m | 8:46PM1.19m | |||||||
— | 6:20 | — | — | 6:20 | — | — | 6:18 | — | — | 6:18 | — | — | 6:18 | — | — | 6:18 | — | — | |
6:16 | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:15 | — | — | 6:15 | — | — | 6:15 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 1 | — | 1 |
Temp °C | 24 | 27 | 27 | 25 | 26 | 27 | 25 | 27 | 27 | 24 | 26 | 27 | 25 | 27 | 27 | 24 | 27 | 27 | 24 |
Feels °C | 27 | 27 | 27 | 27 | 27 | 27 | 26 | 27 | 27 | 26 | 26 | 27 | 27 | 27 | 27 | 26 | 27 | 27 | 26 |
Swell 1 Height (m) Direction Period (s) | SSW 18 | SSW 18 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SW 14 | SSW 14 | SSW 16 | SSW 16 | SSW 14 | SSW 14 | SSW 17 | SSW 16 |
1683 | 1944 | 1821 | 1910 | 1614 | 1321 | 1141 | 933 | 770 | 561 | 630 | 395 | 672 | 1411 | 1551 | 1399 | 1341 | 1738 | 2696 | |
Swell 2 Height (m) Direction Period (s) | SSW 11 | NE 7 | NE 7 | NE 7 | NE 7 | NE 6 | NE 7 | S 8 | NE 6 | NE 6 | SSW 6 | SSW 14 | S 18 | S 6 | — | SSW 18 | SSW 18 | SSW 13 | — |
105 | 7 | 7 | 8 | 7 | 7 | 2 | 1 | 6 | 2 | 4 | 280 | 225 | 17 | — | 352 | 961 | 811 | — | |
Swell 3 Height (m) Direction Period (s) | NE 7 | — | — | — | — | — | — | — | — | — | — | — | SSW 18 | — | — | SSW 21 | — | — | — |
7 | — | — | — | — | — | — | — | — | — | — | — | 348 | — | — | 90 | — | — | — | |
Wind waves Height (m) Direction Period (s) | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SSE 6 | SE 5 | SSE 5 | SE 5 | SE 5 | ESE 5 | — |
56 | 65 | 106 | 128 | 65 | 84 | 116 | 69 | 77 | 72 | 50 | 64 | 55 | 25 | 36 | 24 | 29 | 16 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 17 | 15 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 27 | 17 | 17 | 17 |
Best forecast wave conditions in Sanur - Bali | |||||||||||||||||||
Best forecast wave conditions in Indonesia | |||||||||||||||||||
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Information about the Ketewel Surf forecast
The above surf forecast table for Ketewel provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Ketewel can be found by selecting the local surf guide option on the grey menu. Our Ketewel 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 (Ketewel) 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 Ketewel 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.
Ketewel is 7 km (4 miles) from Denpasar. If you plan a holiday in Sanur - Bali, look for hotels and other accommodation in Denpasar. Denpasar has rooms for a wide range of budgets as well as car hire and transport links.











