Surf Forecasts:
Ketewel surf forecast from 18 Aug 2026:
- Most powerful swell: Wednesday 19 Aug, 11PM (local time) - 8ft (2.5m), 17s period, SSW swell with 3,727 kJ wave energy.
Best Forecast Surf Conditions for Ketewel this week:
The most powerful waves expected at Ketewel in the next 16 days are 2.5m 17s and forecast to arrive on Wednesday (Aug 19) 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 0.6m 8s period and expected on Wednesday (Aug 19) at 8PM.
| Wave Type | Time (WITA) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11PM (Wed 19th Aug) | 8ft (2.5m) 17s |
Table - best surf conditions forecast for Ketewel over the next 16 days.
The Lowdown
Alright, Rusty here. Let's have a look at what's on the table for the next couple of weeks.
Right off the bat, I gotta be straight with you: it's a bit of a tough stretch ahead. We've got a solid SSW groundswell running, with periods well over 15 seconds – that's some serious energy, the combined energy is strong, peaking over 3000 (3075) to start. But the problem is the wind. It's blowing cross-on from the SE or ESE almost the whole run, and that's going to mess up the face of the waves. For a spot like Ketewel, a sheltered reef that needs clean conditions, this cross-on breeze is a real killer.
We kick off on Wednesday, the 19th of August, with a decent 7ft to 8ft SSW swell, but that cross-on wind means it's going to be lumpy and difficult. This is advanced-level stuff – at 7ft on a reef, you want to be on your game, but the chop will make it even more of a handful. The water temp is pretty average for this time of year, nothing unusual to report. Honestly, the whole first week looks like a write-off for quality surf. The wind just doesn't let up, and by the 23rd and 24th, conditions are being called "poor." It's a frustrating pattern.
Now, there is a small window. On the afternoon of Sunday, the 23rd of August, the wind actually swings onshore from the SE for a session, and we've got a 6ft SSW swell. That's still a bit of a wait, and the period drops to 15 seconds. It's not a standout, but it's the best of a bad lot. Then again, on the 28th of August, Friday morning, we see another pulse of 7ft SSW swell, with a period of 16 seconds. The wind is still cross-on, but the energy is back up (2341). It's still only marginal.
Honestly, if you're desperate for a paddle, the 23rd afternoon is your best shot, but don't expect perfection. For most of this run, the setup is so blown out that it looks more interesting for the kite crew than us paddle surfers. The swell is there, but the quality just isn't. This is a long stretch of poor conditions, and it's more normal for this area to have these blank runs when the wind is stubborn. Keep an eye on it, but I'd be looking for a different spot or a different week.
Rusty.
Short Range ForecastMostly dry. Warm (max 27°C on Wed morning, min 23°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Sun morning. Warm (max 27°C on Sun afternoon, min 23°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | |||||||||||||||
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 18 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 18 | SSW 16 | SSW 16 | SSW 14 | SSW 16 | SSW 16 | SSW 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 3022 | 3467 | 3640 | 3113 | 2510 | 1957 | 1124 | 2692 | 2329 | 2080 | 1780 | 1491 | 1471 | 1220 | 1047 | 1613 | 1393 | 943 | 1324 | 1169 | 956 |
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 | on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | on | cross-on |
High Tide | 1:45PM1.87m | 1:58AM2.32m | 2:15PM1.64m | 2:29AM2.15m | 2:50PM1.42m | 3:08AM1.96m | 4:11PM1.21m | 4:25AM1.80m | 7:04AM1.80m | 9:48PM1.53m | 8:24AM1.95m | 9:58PM1.72m | |||||||||
Low Tide | 7:31PM0.64m | 8:35AM0.69m | 7:51PM0.81m | 9:23AM0.87m | 8:06PM0.99m | 10:52AM1.01m | 7:51PM1.16m | 1:59PM0.96m | 3:00PM0.77m | 2:16AM1.28m | 3:30PM0.60m | 3:07AM1.10m | |||||||||
 | |  | | | | | | | | | |  | |  | | | |  | | | |
 | 6:26 | — | — | 6:26 | — | — | 6:26 | — | — | 6:26 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — |
 | — | 6:17 | — | — | 6:17 | — | — | 6:17 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | 1 | — | — | — | — | — |
Temp °C | 27 | 27 | 24 | 27 | 27 | 24 | 27 | 26 | 24 | 26 | 26 | 24 | 26 | 27 | 24 | 26 | 27 | 25 | 26 | 26 | 24 |
Feels °C | 28 | 28 | 26 | 29 | 27 | 25 | 28 | 26 | 26 | 25 | 26 | 25 | 27 | 28 | 26 | 25 | 27 | 25 | 26 | 26 | 27 |
Swell 1 Height (m) Direction Period (s) | SSW 18 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 14 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 16 | SSW 16 | SSW 14 | SSW 16 | SSW 16 | SSW 14 |
| kJ | 3022 | 3467 | 3640 | 3113 | 2510 | 1957 | 886 | 2692 | 2329 | 2080 | 1780 | 1491 | 1471 | 1220 | 1047 | 1613 | 1393 | 943 | 1324 | 1169 | 956 |
Swell 2 Height (m) Direction Period (s) | SE 6 | NE 8 | NE 8 | SE 7 | NE 7 | SE 7 | SSW 18 | NE 8 | NE 7 | SE 7 | S 25 | SE 6 | S 20 | SSW 19 | SSW 18 | SW 21 | SSW 20 | SSW 18 | — | SSW 6 | — |
| kJ | 62 | 20 | 29 | 61 | 14 | 99 | 1124 | 15 | 9 | 97 | 13 | 35 | 202 | 796 | 961 | 18 | 149 | 276 | — | 14 | — |
Swell 3 Height (m) Direction Period (s) | NE 7 | — | — | NE 7 | — | NE 7 | SE 7 | — | — | — | NE 7 | S 24 | — | — | — | — | — | — | — | — | — |
| kJ | 18 | — | — | 19 | — | 8 | 109 | — | — | — | 8 | 11 | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | ESE 6 | SE 7 | SE 7 | — | SE 7 | ESE 7 | — | SE 7 | SE 6 | — | SE 7 | — | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 |
| kJ | 118 | 140 | 63 | — | 162 | 205 | — | 112 | 85 | — | 99 | — | 56 | 46 | 43 | 58 | 65 | 62 | 58 | 44 | 36 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 15 | 17 | 15 | 17 | 17 | 8 | 17 | 17 | 15 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 |
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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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