
Surf Forecasts:
Ketewel surf forecast from 6 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.
| 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
G’day, Rusty here. Let’s look at what’s on offer at Ketewel.
Alright, straight up – the next couple of weeks are a bit of a mixed bag for Ketewel. There’s always some swell in the water, but it’s been a struggle to get good conditions. The wind is nearly always from the southeast, which is cross-on for this sheltered reef, and that’s going to keep things choppy and messy for most of the period. The water temp is sitting at 80°, which is pretty much normal for this time of year.
The first real chance to get excited about comes on Tuesday, September 8th. The morning bumps are around 5 ft from the SSW, with a period of 19 seconds – that’s a proper long-period groundswell, and it’ll bring a lot of energy (combined energy of 2597). The wind is onshore from the SSE at 9 mph, so it’s not perfect, but it’s manageable. The afternoon sees a slight bump to 6 ft with a 18-second period, and the energy stays high (2928). The same setup holds for Wednesday, September 9th, with a bit more size – 8 ft in the morning (combined energy of 2903) and 7 ft in the afternoon (2368). The wind is still cross-on, but it’s a lighter breeze at 6 mph on Wednesday afternoon, which is a bit better. This is a consistent, solid run of swell, but honestly, the wind is the main downside. For a reef break like Ketewel, that onshore wind is going to mess with the surface. It’s still surfable, but don’t expect perfection.
Now, looking further ahead, the standout option is the very end of the window. On Tuesday, September 22nd, we’re looking at some serious grunt – 10 ft in the morning and 12 ft in the afternoon, both from the SSW with a long period of 19 to 20 seconds. The combined energy is massive (7516 and 8209). This is big, powerful groundswell, and it’s not for the faint-hearted. For a reef break, that kind of size and period is expert-only territory. The good news is the wind looks like it could be light and onshore, or even near glassy, with SSE winds at just 6 mph. That’s a major positive for clean conditions. The period is very long, so the waves will be well-shaped and powerful, but it’s going to be a big, heavy wave. If you’re an experienced surfer, this is the best on offer, but it’s still a long way out, so take it with a grain of salt.
In between, there’s a lot of mediocre surf. The swell stays around 5 ft to 7 ft from the SSW for most of the first week, but the wind is persistently cross-on from the SE at 9 mph, keeping the surface choppy. The energy is moderate to strong (between 1000 and 2000 for most sessions). Friday and Saturday, September 11th and 12th, are particularly poor with the wind honking cross-on. There’s a slight improvement on Sunday, September 20th, with bigger swell up to 8 ft and lighter winds, but it’s still a cross-on breeze.
Overall, the best bet is the 22nd of September, but it’s a big, expert-only wave. The rest of the period is a game of waiting for the wind to play nice. If you’re a beginner, the smaller days around 4 ft to 5 ft might be worth a look, but with the wind as it is, it’s not the most inviting. The crowds at Ketewel can be an issue sometimes, so factor that in for the cleaner windows.
Rusty signing off.
Short Range ForecastLight rain (total 8mm), mostly falling on Mon morning. Warm (max 26°C on Mon morning, min 23°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 10mm), heaviest on Thu night. Warm (max 27°C on Thu morning, min 24°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | |||||||||||||||
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 14 | SSW 14 | SSW 13 | SSW 19 | 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 | |||||||||||||||||||||
1773 | 1154 | 1089 | 1323 | 1726 | 2339 | 2903 | 2368 | 1981 | 1491 | 2046 | 1972 | 1663 | 1488 | 924 | 899 | 732 | 1519 | 1702 | 2256 | 1809 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | 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 | 1:24PM0.78m | 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 | — | — | 6:16 | — | — | 6:15 | — | — | 6:13 | — | — | 6:13 | — | — | |
— | 6:15 | — | — | 6:15 | — | — | 6:15 | — | — | 6:15 | — | — | 6:15 | — | — | 6:15 | — | — | 6:15 | — | |
mm | 2 | — | 3 | 2 | 1 | — | — | — | — | — | — | 3 | — | — | 4 | — | — | 3 | — | 1 | 3 |
Temp °C | 26 | 26 | 24 | 25 | 25 | 24 | 25 | 25 | 24 | 27 | 27 | 25 | 27 | 27 | 25 | 27 | 27 | 25 | 27 | 27 | 25 |
Feels °C | 27 | 27 | 26 | 27 | 26 | 26 | 26 | 26 | 27 | 29 | 28 | 28 | 29 | 28 | 28 | 29 | 28 | 27 | 28 | 28 | 28 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | 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 |
1773 | 1154 | 1089 | 1259 | 1202 | 2339 | 2903 | 2368 | 1981 | 1491 | 2046 | 1972 | 1663 | 1488 | 924 | 899 | 732 | 1519 | 1702 | 2256 | 1809 | |
Swell 2 Height (m) Direction Period (s) | SW 22 | SSW 22 | SSW 21 | SSW 19 | SSW 18 | SSW 12 | — | — | SSW 18 | SSW 19 | — | SW 26 | SW 26 | SW 24 | SSW 10 | SSW 21 | SSW 21 | SSW 15 | SW 14 | — | — |
19 | 91 | 487 | 1323 | 1726 | 647 | — | — | 209 | 280 | — | 27 | 26 | 142 | 52 | 584 | 297 | 656 | 469 | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 24 | S 9 | SSW 9 | NE 7 | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | 141 | 42 | 25 | 8 | — | — | — | |
Wind waves Height (m) Direction Period (s) | ESE 4 | S 6 | — | SE 4 | — | — | — | — | — | SE 4 | SE 4 | SE 5 | SE 5 | SE 5 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 |
12 | 52 | — | 15 | — | — | — | — | — | 10 | 12 | 18 | 25 | 25 | 52 | 43 | 49 | 69 | 52 | 47 | 60 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 17 | 17 | 17 | 87 | 27 | 15 | 17 | 15 | 8 | 15 | 17 | 15 | 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.










