
Surf Forecasts:
Ketewel surf forecast from 7 Sep 2026:
- Most powerful swell: Wednesday 9 Sep, 8AM (local time) - 8ft (2.5m), 16s period, SSW swell with 3,173 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 16s and forecast to arrive on Wednesday (Sep 09) at 8AM. 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 Sunday (Sep 13) at 5PM.
| Wave Type | Time (WITA) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8AM (Wed 9th Sep) | 8ft (2.5m) 16s |
Table - best surf conditions forecast for Ketewel over the next 16 days.
The Lowdown
Alright, Rusty here, checking in from the beach. Let's talk about what's coming up over the next couple of weeks.
The long-range picture is a bit of a tough one for the immediate future. We've got a solid pulse of swell from the SSW, but the wind is persistently cross-onshore or onshore, keeping things from getting that clean, lined-up look we all want. The real standout, if you're patient and willing to wait, appears to be the window around the 9th and 10th of September, where the wind lightens up a touch.
Let's start with the main event. Ketewel is a reef break, and it's inconsistent, so you need to be ready for lulls between sets. It’s an advanced spot, and with the swell size we're seeing, it's going to be pushing it for most. The water temp is sitting at 80°, which is about average for this time of year.
The first real flicker of something decent shows on Monday morning, 7 September. There's a 7 ft SSW swell rolling in with a 14-second period, but the wind is a cross-on 15 km/h from the SE, making for poor surf conditions. It's choppy and messy. That's a pass from me.
Tuesday, 8 September is a bit of a head-scratcher. The swell drops to 5 ft in the morning but the period climbs to a very long 19 seconds, and the combined energy is a solid 2582. The wind is still onshore though, so it's likely a bit of a washing machine. The afternoon picks up to 6 ft at 18 seconds, but it's still an onshore breeze.
Now, Wednesday, 9 September is the one to circle. The morning has a 8 ft SSW swell at 16 seconds, with a combined energy of 2903. That's a lot of power. The wind is still onshore from the SSE, but it's only 6 mph in the afternoon. The afternoon is the pick: 7 ft swell, 16-second period, and a light onshore breeze. The score is the highest we see for this period. It's going to be a powerful, long-period groundswell. For a reef break like Ketewel, that long period is a positive, but at 7 ft, it's getting into "experts only" territory. The crowd is listed as "sometimes," so you might have some company, but it won't be a circus.
Thursday, 10 September continues the trend. The morning swell is 6 ft at 15 seconds, and the wind is a light 6 mph from the SSE. The afternoon jumps back to 7 ft at 16 seconds. Similar deal: powerful, but still a touch of onshore wind.
After that, from Friday, 11 September right through to Tuesday, 22 September, the wind settles into a persistent cross-onshore pattern from the SE at 9-12 mph. The swell stays in the 5 ft to 7 ft range, but with the constant cross-breeze, the conditions are described as either "poor" or "marginal" for the entire run. The scores are consistently low. There's a brief moment on Saturday morning, 19 September with a 6 ft swell at 17 seconds and a cross-on breeze, but it's still a "marginal" call. The energy levels are still there (2100), but the wind just won't cooperate.
The very end of the forecast, on Tuesday, 22 September, shows a drop in swell size to 4 ft and 4 ft, but the period spikes to a very long 20 seconds. The wind turns light and onshore, but the swell is just too small for this spot to be worth the paddle out.
So, the call is simple: if you're an advanced surfer and you can handle a powerful, long-period groundswell, the Wednesday afternoon, 9 September and Thursday, 10 September windows are the best on offer. Don't expect perfection, but it's the cleanest it's going to get. For everyone else, this is a long stretch of frustrating, bumpy conditions. The wind is the enemy here, and it doesn't look like giving up.
Rusty.
Short Range ForecastLight rain (total 5mm), mostly falling on Mon night. Warm (max 26°C on Mon afternoon, min 23°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 10mm), heaviest on Thu night. Warm (max 27°C on Thu afternoon, min 24°C on Thu night). Wind will be generally light. | |||||||||||||||||||
Mon 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | ||||||||||||||
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 13 | SSW 13 | SSW 18 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SW 19 | SSW 18 | SSW 17 | SSW 16 |
Wave Graph | ||||||||||||||||||||
1154 | 1089 | 1387 | 1726 | 2339 | 2903 | 2368 | 1809 | 1491 | 2046 | 1972 | 1663 | 1488 | 924 | 899 | 732 | 1503 | 1702 | 2230 | 1787 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | on | on | on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 8:31PM1.45m | 7:15AM2.03m | 9:07PM1.73m | 8:33AM2.21m | 9:37PM2.00m | 9:24AM2.39m | 10:05PM2.26m | 10:06AM2.50m | 10:33PM2.47m | 10:42AM2.53m | 11:00PM2.63m | 11:16AM2.49m | 11:27PM2.71m | |||||||
Low Tide | 00:28AM1.30m | 2:35PM0.59m | 2:19AM1.06m | 3:17PM0.42m | 3:15AM0.78m | 3:50PM0.29m | 3:58AM0.51m | 4:20PM0.22m | 4:35AM0.31m | 4:48PM0.20m | 5:10AM0.17m | 5:15PM0.23m | ||||||||
— | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:15 | — | — | 6:13 | — | — | 6:13 | — | — | |
6:15 | — | — | 6:15 | — | — | 6:15 | — | — | 6:15 | — | — | 6:15 | — | — | 6:15 | — | — | 6:15 | — | |
mm | — | 2 | 2 | 1 | — | — | — | — | — | — | 3 | 1 | — | 3 | — | — | 3 | — | 1 | — |
Temp °C | 26 | 24 | 25 | 25 | 24 | 26 | 25 | 24 | 26 | 27 | 25 | 27 | 27 | 25 | 27 | 27 | 25 | 27 | 27 | 24 |
Feels °C | 27 | 26 | 27 | 26 | 26 | 28 | 26 | 27 | 28 | 28 | 28 | 29 | 28 | 28 | 29 | 28 | 27 | 28 | 28 | 26 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SW 19 | SSW 18 | SSW 17 | SSW 16 |
1154 | 1089 | 1387 | 1323 | 2339 | 2903 | 2368 | 1809 | 1491 | 2046 | 1972 | 1663 | 1488 | 924 | 899 | 732 | 1503 | 1702 | 2230 | 1787 | |
Swell 2 Height (m) Direction Period (s) | SSW 6 | SSW 21 | SSW 19 | SSW 18 | SSW 12 | — | — | SSW 18 | SSW 19 | — | SW 26 | SW 26 | SW 24 | SSW 10 | SSW 21 | SW 21 | SSW 14 | SSW 14 | NE 7 | NE 7 |
40 | 487 | 1323 | 1726 | 730 | — | — | 209 | 280 | — | 27 | 26 | 142 | 52 | 584 | 355 | 553 | 352 | 8 | 8 | |
Swell 3 Height (m) Direction Period (s) | SSW 22 | — | — | — | — | — | — | — | — | — | — | — | — | SW 24 | NE 6 | SSW 9 | NE 7 | SE 6 | — | — |
91 | — | — | — | — | — | — | — | — | — | — | — | — | 142 | 6 | 15 | 8 | 62 | — | — | |
Wind waves Height (m) Direction Period (s) | SE 4 | — | — | — | — | — | — | — | SE 4 | SE 4 | SE 4 | SE 5 | SE 5 | SE 6 | SE 5 | SE 6 | SE 6 | — | SE 6 | SE 6 |
6 | — | — | — | — | — | — | — | 8 | 9 | 16 | 24 | 25 | 50 | 35 | 49 | 80 | — | 49 | 59 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 17 | 15 | 17 | 27 | 15 | 15 | 15 | 15 | 15 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 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.










