Surf Forecasts:
Ketewel surf forecast from 15 Sep 2026:
- Most powerful swell: Sunday 20 Sep, 2PM (local time) - 6ft (1.9m), 16s period, SSW swell with 1,765 kJ wave energy.
Best Forecast Surf Conditions for Ketewel this week:
The most powerful waves expected at Ketewel in the next 16 days are 1.9m 16s and forecast to arrive on Sunday (Sep 20) at 2PM. Winds are predicted to be 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 Wednesday (Sep 16) at 2AM.
| Wave Type | Time (WITA) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2PM (Sun 20th Sep) | 6ft (1.9m) 16s |
Table - best surf conditions forecast for Ketewel over the next 16 days.
The Lowdown
Alright, so we’re looking at Ketewel, and the immediate forecast is less than stellar. It’s a sheltered reef, which helps, but the wind is blowing on it or from a cross-on angle most of the time, which messes up the face. Water temp is about normal for now.
For the next seven days, we’re seeing waves in the 4ft to 6ft range, with a swell period of 13 to 16 seconds. The energy is weak to moderate, reading between 670 and 1781. Most of these are coming in as marginal or poor, so don't get too excited. You'll be dealing with onshore chop and tricky tides. The 18th and 19th are the weakest, with smaller surf and poor conditions. Not a beginner's window either – it's not big, but it's messy, and there's no good offshore wind to clean it up.
There's a bit of a lull around the 22nd, but things start to wake up later. September 27th is the clear standout. That morning we see a jump to 8ft of SSW groundswell, with a very long 18-second period. The combined energy is strong, hitting 4687. That's serious power. It’ll be cleanest first thing, but the wind is still cross-on, so it’ll have a bit of texture. This one is for experienced surfers only, as waves over 8ft are no joke.
Looking ahead to October 1st, the morning also looks promising with 7ft of SSW swell and an even longer 18-second interval, pushing energy up to 4080. Another big one, but again, a bit lumpy with that cross-on breeze. The long period might make it break a little straight, but there's plenty of push.
So, bottom line: the first week is a scratch, but the end of the month and the first of October are where the real swell arrives. If you're a solid surfer, that's your window. If not, sit this one out.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Wed night. Warm (max 28°C on Fri morning, min 24°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 28°C on Mon morning, min 23°C on Sat night). Wind will be generally light. | ||||||||||||||||||
Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | ||||||||||||||
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 15 | SSW 14 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 14 | SSW 14 | SSW 14 |
Wave Graph  | |||||||||||||||||||
 kJ | 1125 | 1024 | 1130 | 1275 | 1374 | 1223 | 1023 | 854 | 733 | 630 | 585 | 487 | 807 | 1555 | 1743 | 1588 | 1261 | 1042 | 690 |
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 | on | cross-on | cross-on | on | cross-on | cross-on | on | on | cross-on | on | on | cross-on |
High Tide | 00:19AM2.64m | 12:44PM2.07m | 00:44AM2.51m | 1:10PM1.87m | 1:09AM2.34m | 1:37PM1.66m | 1:36AM2.15m | 2:05PM1.45m | 2:06AM1.95m | 3:01PM1.25m | 2:58AM1.74m | ||||||||
Low Tide | 6:45AM0.25m | 6:28PM0.53m | 7:16AM0.40m | 6:48PM0.68m | 7:49AM0.59m | 7:06PM0.84m | 8:28AM0.80m | 7:16PM1.01m | 9:36AM1.00m | 6:49PM1.18m | 1:16PM1.03m | ||||||||
 |  | |  | | | | | | | |  |  | | | | | | | |
 | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — |
 | 6:15 | — | 6:15 | — | — | 6:15 | — | — | 6:15 | — | — | 6:15 | — | — | 6:15 | — | — | 6:14 | — |
mm | — | — | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 27 | 27 | 25 | 27 | 27 | 25 | 28 | 28 | 25 | 27 | 27 | 25 | 27 | 27 | 24 | 28 | 28 | 25 |
Feels °C | 27 | 28 | 28 | 28 | 29 | 28 | 28 | 30 | 30 | 28 | 29 | 29 | 28 | 29 | 29 | 27 | 31 | 30 | 28 |
Swell 1 Height (m) Direction Period (s) | SSW 15 | SSW 15 | SSW 14 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 14 | SSW 14 | SSW 14 |
| kJ | 1125 | 1024 | 1130 | 1275 | 1374 | 1223 | 1023 | 854 | 733 | 630 | 585 | 487 | 807 | 1555 | 1743 | 1588 | 1261 | 1042 | 690 |
Swell 2 Height (m) Direction Period (s) | NE 7 | SW 21 | NE 7 | — | SSW 18 | S 7 | SE 6 | SW 22 | SSW 21 | SSW 20 | SW 19 | SW 18 | SSW 14 | NE 6 | SE 6 | SE 6 | SE 6 | — | SE 6 |
| kJ | 8 | 18 | 7 | — | 127 | 37 | 24 | 18 | 42 | 38 | 173 | 330 | 396 | 6 | 38 | 33 | 49 | — | 30 |
Swell 3 Height (m) Direction Period (s) | — | W 16 | — | — | — | — | — | NE 6 | SSW 21 | NE 6 | NE 6 | NE 6 | SE 6 | — | NE 7 | — | — | — | SW 20 |
| kJ | — | 5 | — | — | — | — | — | 2 | 43 | 1 | 2 | 2 | 25 | — | 8 | — | — | — | 15 |
Wind waves Height (m) Direction Period (s) | SE 6 | SE 5 | SSE 5 | SE 5 | SE 5 | SE 6 | ESE 6 | SE 5 | SE 6 | SE 6 | SE 5 | SE 5 | ESE 6 | SE 6 | — | — | — | SE 6 | — |
| kJ | 36 | 38 | 33 | 45 | 32 | 33 | 47 | 23 | 24 | 16 | 9 | 16 | 49 | 30 | — | — | — | 49 | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 17 | 17 | 27 | 15 | 17 | 17 | 15 | 15 | 17 | 17 | 17 | 17 | 15 | 15 | 15 | 15 | 15 | 17 | 15 |
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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