Surf Forecasts:
Ketewel surf forecast from 29 Aug 2026:
- Best quality surf: Sunday 30 Aug, 11PM (local time) - 4ft (1.2m), 13s period, SSW swell with cross-offshore winds.
- Most powerful swell: Tuesday 1 Sep, 8AM (local time) - 6ft (1.9m), 18s period, SSW swell with 2,144 kJ wave energy.
- Next surfable swell (1★+): Sunday 30 Aug, 11PM (local time) - 4ft (1.2m), 13s period with SSW swell.
Best Forecast Surf Conditions for Ketewel this week:
The surf forecast for Ketewel over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Aug 30) at 11PM. The primary swell is predicted to be 0.8m and 19s period with a secondary swell of 1.2m and 13s. Another secondary swell of 0.9m and 6s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Ketewel in the next 16 days are 1.9m 18s and forecast to arrive on Tuesday (Sep 01) at 8AM. 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+) | 11PM (Sun 30th Aug) | 4ft (1.2m) 13s |
| Best Surf | 11PM (Sun 30th Aug) | 4ft (1.2m) 13s |
| Most Powerful | 8AM (Tue 1st Sep) | 6ft (1.9m) 18s |
Table - best surf conditions forecast for Ketewel over the next 16 days.
The Lowdown
Alright, let’s break it down in feet and miles. I’m Rusty, and here’s the story.
The water’s around 81°, normal for the season. The first few days are a dead loss for clean surf, so there’s a gap. The real action shows up in the middle of the first week and into the second, but the wind is a constant problem.
The best window is around Tuesday, September 8th, into Wednesday, September 9th. Ketewel (Bali) will see a solid SSW groundswell running 7 ft to 8 ft, with a long period of 18 to 17 seconds. That’s serious energy—combined energy readings of 3564 and 4032. The wind is light and variable, turning onshore, giving you the cleanest conditions we’ll see. The waves will be lined up and powerful, but at that size and period, it’s experts only. The reef here will handle the long period well, so the shape should be good. Crowds are possible, so get there early if you’re up for it.
From Saturday, August 29th, through Monday, September 7th, it’s a rough patch. The wind is cross-on or onshore from the SE at 9 to 12 mph, with poor to marginal wave quality. Swell heights range from 3 ft to 6 ft, periods from 13 to 18 seconds, and energy from 1178 to 1998. It’s choppy and bumpy—not worth the effort.
After the standout, from Thursday, September 10th, onward, the swell stays solid at 6 ft to 7 ft with periods of 15 to 19 seconds, but the wind is back up, turning cross-on again. The energy stays high, between 2063 and 4032, but the quality is poor to marginal. It’ll be a tease, not a treat.
For anyone who’s not an expert, this stretch is more of a kite-surfing setup during the windier, messier days. If you’re paddling, aim for the 8th and 9th.
Rusty.
Short Range ForecastMostly dry. Warm (max 28°C on Sun afternoon, min 23°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 27°C on Tue afternoon, min 24°C on Tue night). Wind will be generally light. | |||||||||||||||||||
Sat 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | ||||||||||||||
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 14 | SSW 14 | SSW 13 | SSW 13 | SSW 19 | SSW 18 | SSW 18 | SSW 18 | SSW 18 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 |
Wave Graph  | ||||||||||||||||||||
 kJ | 1130 | 799 | 615 | 606 | 578 | 928 | 1231 | 1683 | 1944 | 1821 | 1910 | 1614 | 1555 | 1141 | 933 | 780 | 647 | 621 | 361 | 733 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | glassy | cross-on | cross-on | 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 |
High Tide | 11:16PM2.43m | 11:18AM2.49m | 11:39PM2.55m | 11:48AM2.44m | 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 | |||||||
Low Tide | 5:04PM0.21m | 5:14AM0.40m | 5:27PM0.21m | 5:45AM0.29m | 5:50PM0.25m | 6:17AM0.24m | 6:14PM0.32m | 6:51AM0.25m | 6:39PM0.43m | 7:28AM0.34m | 7:04PM0.58m | 8:12AM0.49m | 7:31PM0.75m | |||||||
 |  | | |  |  | | | | | | | | | | | | | | | |
 | — | — | 6:22 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — | — | 6:18 | — | — | 6:18 | — | — |
 | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:15 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 24 | 27 | 28 | 24 | 27 | 27 | 25 | 27 | 27 | 25 | 27 | 27 | 25 | 27 | 27 | 25 | 26 | 27 | 24 |
Feels °C | 28 | 26 | 28 | 29 | 26 | 28 | 28 | 27 | 28 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 26 | 27 | 28 | 26 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 12 | SSW 18 | SSW 18 | SSW 18 | SSW 18 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 |
| kJ | 1130 | 799 | 615 | 606 | 365 | 928 | 1231 | 1683 | 1944 | 1821 | 1910 | 1614 | 1555 | 1141 | 933 | 780 | 647 | 621 | 361 | 733 |
Swell 2 Height (m) Direction Period (s) | S 26 | SSW 23 | SSW 21 | SSW 21 | SSW 19 | SSW 12 | SSW 12 | SSW 11 | NE 7 | NE 8 | NE 7 | NE 7 | NE 7 | NE 7 | NE 6 | ENE 6 | NE 6 | SSW 6 | SW 13 | SSW 6 |
| kJ | 13 | 54 | 180 | 253 | 578 | 274 | 207 | 138 | 7 | 9 | 8 | 7 | 7 | 7 | 7 | 4 | 2 | 7 | 286 | 12 |
Swell 3 Height (m) Direction Period (s) | S 21 | ENE 6 | SSW 21 | SSW 21 | SE 6 | NE 7 | NE 7 | NE 7 | — | — | — | — | — | — | S 8 | — | — | NE 6 | SSW 6 | NE 6 |
| kJ | 9 | 4 | 180 | 256 | 29 | 2 | 8 | 7 | — | — | — | — | — | — | 1 | — | — | 2 | 8 | 1 |
Wind waves Height (m) Direction Period (s) | SE 6 | SE 5 | SE 6 | SE 5 | — | SE 5 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 5 | SE 6 | SE 5 | SE 6 | SE 6 | SE 5 | SE 6 | SE 5 |
| kJ | 26 | 25 | 39 | 74 | — | 34 | 43 | 72 | 54 | 75 | 124 | 54 | 73 | 102 | 41 | 69 | 69 | 40 | 43 | 41 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 17 | 15 | 17 | 17 | 0 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 |
Best forecast wave conditions in Sanur - Bali | ||||||||||||||||||||
Best forecast wave conditions in Indonesia | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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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.
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