
Surf Forecasts:
Ketewel surf forecast from 9 Aug 2026:
- Best quality surf: Saturday 15 Aug, 8PM (local time) - 7ft (2.1m), 16s period, SSW swell with glassy winds.
- Most powerful swell: Monday 10 Aug, 11PM (local time) - 10ft (3.0m), 17s period, SSW swell with 5,634 kJ wave energy.
- Next surfable swell (1★+): Saturday 15 Aug, 8PM (local time) - 7ft (2.1m), 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 Saturday (Aug 15) at 8PM. The primary swell is predicted to be 2.1m and 16s period with a secondary swell of 0.6m and 5s. Another secondary swell of 0.8m and 5s is also forecast. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Ketewel in the next 16 days are 3.0m 17s and forecast to arrive on Monday (Aug 10) 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 Sunday (Aug 16) at 5PM.
| Wave Type | Time (WITA) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Sat 15th Aug) | 7ft (2.1m) 16s |
| Best Surf | 8PM (Sat 15th Aug) | 7ft (2.1m) 16s |
| Most Powerful | 11PM (Mon 10th Aug) | 10ft (3.0m) 17s |
Table - best surf conditions forecast for Ketewel over the next 16 days.
The Lowdown
Alright, let’s get into it. It’s Rusty here, and I’ve been staring at the charts for this stretch of coast, and honestly, it’s a bit of a mixed bag for the next couple of weeks. We’ve got a serious window of solid, powerful swell coming in, but the wind and conditions are going to be the big story. This isn't a clean, easy run of waves; it’s one for the experienced crew who know this break.
Right off the bat, the real action kicks off on Monday, August 10th. We’ve got a strong groundswell filling in, with waves around 6ft from the south, but the period is a long 19 seconds. The energy is strong, with the combined swell energy coming in at 3336. The problem is the wind. It’s a cross-onshore from the southeast at 9 mph, which is going to put a bit of chop on the face. It’s not terrible, but it’s not glassy. The water temp is about average for this time of year, so no surprises there.
The swell builds through Monday afternoon and into Tuesday, August 11th, pushing up to a solid 10ft from the SSW. This is proper, powerful stuff. The energy jumps to 4753 and then 4447, so there’s a lot of push behind it. However, it’s right at that size where it’s only for the experts. The wind stays on it, from the SSE on Tuesday afternoon, which isn't ideal. Expect a heavy, challenging day at Ketewel.
Wednesday, August 12th, sees the swell ease a touch to 7ft, but it’s still from the SSW with a 17-second period. The energy is still moderate at 2683. The wind is still cross-onshore, so it remains a bit lumpy. This pattern of decent-sized, powerful swell but with onshore or cross-onshore winds holds through the rest of the first week and into the weekend. Thursday and Friday keep the 7ft to 8ft range, with the energy staying in the 2000-3000 range. It’s all rideable for the experienced, but it’s not going to be a smooth, clean surface.
Into the second week, the situation gets a bit messier. The swell drops a little, hovering around 5ft to 7ft, but the wind strengthens. By Monday, August 17th, we’re looking at poor conditions with a moderate cross-onshore breeze, and the surf quality takes a hit. The energy drops off too, down into the 800-900 range. This is where it gets less interesting for the paddle crew.
The long-range stuff, into the week of August 20th and beyond, is a real letdown. The swell picks back up a bit to 8ft, but the wind is blowing harder from the southeast at 12 mph, making it choppy and messy. The combined energy is still moderate, around 2500-3400, but with that wind, it’s going to be a battle. It looks more like a day for the kite surfers than anyone on a paddleboard. The conditions are just poor, plain and simple.
So, the standout window is really the first three days, from Monday, August 10th, through Wednesday, August 12th. The swell is big and powerful, but it’s not for the faint of heart. Ketewel is a reef break, and it’s inconsistent, so you’ll be waiting for sets, but when they come, they’ll have some real punch. The direction is from the SSW, which is in line with the optimum for this spot. The crowds are sometimes an issue here, so you might have some company on the peak.
The rest of the week is still rideable, but just not as clean. The second week looks like a write-off for good surf, with a few days of no real recommendations. The energy is still there, but the wind is just going to kill it. Keep an eye on it, but don't get your hopes up for that second week.
Alright, that’s the picture from here. Keep your wits about you if you’re paddling out for the big stuff, and maybe bring the kite gear for later on.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Sun night. Warm (max 26°C on Mon afternoon, min 23°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 26°C on Thu morning, min 23°C on Wed night). Wind will be generally light. | ||||||||||||||||||
Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | ||||||||||||||
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 | S 19 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 17 | SSW 15 | SSW 18 | S 17 | S 16 | S 16 | SSW 16 | SSW 15 | SSW 14 | SSW 17 | SSW 17 | SSW 16 |
Wave Graph | |||||||||||||||||||
1413 | 2109 | 4753 | 5592 | 4447 | 3857 | 2543 | 2544 | 1925 | 1671 | 3237 | 3697 | 3222 | 2247 | 1801 | 1143 | 2437 | 2703 | 2160 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | on | on | cross-on | on | cross-on | on |
High Tide | 8:04PM1.35m | 6:58AM2.17m | 9:15PM1.57m | 8:23AM2.32m | 9:56PM1.81m | 9:24AM2.49m | 10:30PM2.04m | 10:12AM2.62m | 11:02PM2.26m | 10:55AM2.66m | 11:33PM2.44m | 11:34AM2.62m | 00:04AM2.56m | ||||||
Low Tide | 11:41PM1.22m | 2:39PM0.52m | 1:51AM1.14m | 3:31PM0.33m | 3:06AM0.93m | 4:11PM0.18m | 4:00AM0.70m | 4:47PM0.09m | 4:46AM0.50m | 5:19PM0.06m | 5:27AM0.37m | 5:49PM0.10m | |||||||
— | 6:30 | — | — | 6:30 | — | — | 6:30 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | |
6:16 | — | 6:17 | — | — | 6:17 | — | — | 6:17 | — | — | 6:17 | — | — | 6:17 | — | — | 6:17 | — | |
mm | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 |
Temp °C | 24 | 25 | 26 | 24 | 25 | 26 | 24 | 25 | 26 | 24 | 26 | 26 | 24 | 25 | 26 | 23 | 25 | 26 | 24 |
Feels °C | 26 | 25 | 26 | 25 | 26 | 26 | 26 | 26 | 26 | 25 | 26 | 26 | 26 | 26 | 27 | 26 | 26 | 27 | 27 |
Swell 1 Height (m) Direction Period (s) | SSW 15 | S 19 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 17 | SSW 15 | SSW 18 | S 17 | S 16 | S 16 | SSW 16 | SSW 15 | SSW 14 | SSW 17 | SSW 17 | SSW 16 |
1413 | 2109 | 4753 | 5592 | 4447 | 3857 | 2543 | 2544 | 1925 | 1671 | 3237 | 3697 | 3222 | 2247 | 1801 | 1143 | 2437 | 2703 | 2160 | |
Swell 2 Height (m) Direction Period (s) | S 20 | SSW 14 | — | — | — | SSW 19 | — | S 21 | S 19 | S 12 | — | — | SSW 24 | S 21 | S 21 | SSW 19 | — | — | SSE 5 |
202 | 1204 | — | — | — | 1860 | — | 36 | 118 | 603 | — | — | 54 | 231 | 229 | 1049 | — | — | 17 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | SSW 21 | — | — | — | — | — | — | — | — | — | — | NE 7 |
— | — | — | — | — | — | — | 86 | — | — | — | — | — | — | — | — | — | — | 7 | |
Wind waves Height (m) Direction Period (s) | SE 5 | SE 5 | — | — | — | SE 7 | SSE 7 | SE 5 | E 4 | — | SE 5 | — | — | SE 8 | SE 8 | SSE 7 | SE 4 | SE 5 | SE 5 |
24 | 23 | — | — | — | 44 | 30 | 17 | 5 | — | 31 | — | — | 70 | 57 | 30 | 16 | 17 | 25 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 15 | 17 | 17 | 16 | 17 | 17 | 15 | 17 | 17 | 17 | 17 | 17 | 15 | 17 | 17 | 8 | 17 | 15 | 15 |
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.











