Surf Forecasts:
Ketewel surf forecast from 25 Aug 2026:
- Best quality surf: Friday 28 Aug, 8PM (local time) - 7ft (2.2m), 16s period, SSW swell with glassy winds.
- Most powerful swell: Friday 28 Aug, 8AM (local time) - 8ft (2.5m), 17s period, SSW swell with 3,457 kJ wave energy.
- Next surfable swell (1★+): Friday 28 Aug, 8PM (local time) - 7ft (2.2m), 16s 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 Friday (Aug 28) at 8PM. The primary swell is predicted to be 2.2m and 16s period with a secondary swell of 0.4m and 5s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Ketewel in the next 16 days are 2.5m 17s and forecast to arrive on Friday (Aug 28) 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 6s period and expected on Wednesday (Aug 26) at 11AM.
| Wave Type | Time (WITA) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Fri 28th Aug) | 7ft (2.2m) 16s |
| Best Surf | 8PM (Fri 28th Aug) | 7ft (2.2m) 16s |
| Most Powerful | 8AM (Fri 28th Aug) | 8ft (2.5m) 17s |
Table - best surf conditions forecast for Ketewel over the next 16 days.
The Lowdown
Right then, let's have a look at what's on the cards for the next fortnight or so. Honestly, it's a bit of a tough stretch ahead. The forecast is looking pretty average for the most part, with a lot of messy, choppy conditions blowing across the water. The water temp is sitting at about 80°, which is pretty much bang on average for this time of year, so no surprises there.
The one spot we’re keeping an eye on is Ketewel, a tricky reef setup that doesn’t break all that often. When it’s on, it’s for the advanced crew only. For the first few days, from Tuesday the 25th of August right through to Sunday the 30th, it’s all cross-on winds with that moderate to gentle breeze and the surf is just poor. Not worth getting wet for. We see a bit of a shift on Thursday the 27th afternoon when the wind goes onshore, but the swell is still only around 3ft from the SSW with a very long 20 second period – that’s proper groundswell energy, and with an energy reading of 1644, it’s got some punch, but it’s still rated as marginal.
The real potential, and I mean the only real standout window we’ve got, starts on Friday the 28th of August. The wind turns light and onshore, which at least makes for clean faces. The swell bumps up to about 8ft from the SSW with a 16 second period – that’s a solid, strong groundswell with a combined energy of 3139. This is getting into expert territory now, too big for learners. The quality is still only marginal, but it’s the best we’ll see. The good news carries into Saturday the 29th with slightly smaller 6ft sets and light onshore winds, but still clean.
After that weekend, it's back to the grind. From Sunday the 30th through to Wednesday the 9th of September, it’s a long, frustrating run of mostly poor surf with cross-on winds, a mix of moderate and gentle breezes, and the swell just falling away. There’s a tiny flicker of life around the 6th and 7th of September, with some 6ft to 7ft SSW swell and onshore winds, but it’s still mostly marginal. The energy kicks up a bit – 2482 on the 6th afternoon – but the inconsistency of this break combined with the less-than-ideal wind means it’s not going to be a classic. It is what it is.
Sadly, there’s no real standout to get properly excited about. If I had to pick the best option, it would be the Friday 28th of August into the Saturday 29th at Ketewel. The SSW swell with a 16 second period, combined with that light onshore wind, will be the cleanest and most powerful we’re likely to get, even if it’s not perfect. Crowds are always possible there, so prepare to share the peak.
Rusty.
Short Range ForecastMostly dry. Warm (max 27°C on Wed morning, min 23°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 27°C on Fri afternoon, min 23°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | |||||||||||||||
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 15 | SSW 16 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 16 | SSW 20 | SSW 18 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 19 | SSW 18 | SSW 18 | SSW 17 |
Wave Graph | |||||||||||||||||||||
1079 | 1107 | 956 | 788 | 754 | 615 | 554 | 731 | 2357 | 3005 | 2801 | 2136 | 1516 | 1130 | 904 | 615 | 606 | 701 | 948 | 1409 | 1627 | |
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 | on | cross-on | on | on | glassy | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 8:24AM1.95m | 9:58PM1.72m | 9:10AM2.13m | 10:15PM1.91m | 9:45AM2.29m | 10:34PM2.10m | 10:17AM2.41m | 10:55PM2.27m | 10:48AM2.48m | 11:16PM2.43m | 11:18AM2.49m | 11:39PM2.55m | 11:48AM2.44m | 00:03AM2.62m | |||||||
Low Tide | 3:30PM0.60m | 3:07AM1.10m | 3:55PM0.45m | 3:43AM0.91m | 4:19PM0.33m | 4:14AM0.72m | 4:41PM0.25m | 4:44AM0.55m | 5:04PM0.21m | 5:14AM0.40m | 5:27PM0.21m | 5:45AM0.29m | 5:50PM0.25m | ||||||||
6:24 | — | — | 6:24 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:20 | — | — | |
— | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 |
Temp °C | 26 | 26 | 24 | 27 | 26 | 24 | 27 | 27 | 25 | 26 | 27 | 24 | 27 | 27 | 24 | 26 | 27 | 25 | 27 | 27 | 25 |
Feels °C | 26 | 26 | 26 | 27 | 26 | 26 | 28 | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 27 | 27 | 28 | 27 | 28 | 27 | 27 |
Swell 1 Height (m) Direction Period (s) | SSW 15 | SSW 16 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 16 | SSW 15 | SSW 18 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 12 | SSW 18 | SSW 18 | SSW 17 |
1079 | 1107 | 956 | 788 | 754 | 615 | 554 | 619 | 2357 | 3005 | 2801 | 2136 | 1516 | 1130 | 904 | 615 | 606 | 365 | 948 | 1409 | 1627 | |
Swell 2 Height (m) Direction Period (s) | — | SSW 6 | SSW 6 | NE 6 | NE 6 | SSW 17 | SSW 12 | S 12 | SSW 13 | SE 5 | SE 5 | ESE 5 | SE 5 | S 26 | SSW 23 | SSW 21 | SSW 21 | SSW 19 | SSW 12 | SSW 12 | SSW 11 |
— | 13 | 14 | 6 | 6 | 164 | 299 | 279 | 418 | 27 | 21 | 6 | 7 | 13 | 54 | 180 | 256 | 701 | 269 | 207 | 103 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | SSW 24 | SSW 22 | SSW 20 | — | — | — | ESE 6 | — | S 21 | SW 23 | — | SSW 21 | SE 6 | SE 5 | NE 7 | NE 7 |
— | — | — | — | — | 55 | 263 | 731 | — | — | — | 12 | — | 9 | 86 | — | 256 | 24 | 34 | 9 | 13 | |
Wind waves Height (m) Direction Period (s) | SE 6 | SE 6 | SE 6 | SE 5 | SE 5 | SE 5 | SE 5 | ESE 5 | — | — | — | — | — | SE 6 | ESE 6 | SE 5 | SE 5 | — | SE 5 | SE 6 | SE 6 |
79 | 75 | 52 | 49 | 54 | 23 | 23 | 19 | — | — | — | — | — | 8 | 13 | 27 | 43 | — | 34 | 43 | 50 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 17 | 17 | 17 | 17 | 17 | 15 | 17 | 27 | 15 | 15 | 15 | 0 | 15 | 15 | 15 | 17 | 17 | 15 | 15 | 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.











