
Surf Forecasts:
Ketewel surf forecast from 3 Aug 2026:
- Best quality surf: Tuesday 4 Aug, 5AM (local time) - 5ft (1.6m), 15s period, SSW swell with glassy winds.
- Most powerful swell: Tuesday 11 Aug, 2AM (local time) - 10ft (3.0m), 17s period, SSW swell with 4,665 kJ wave energy.
- Next surfable swell (1★+): Tuesday 4 Aug, 5AM (local time) - 5ft (1.6m), 15s 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 Tuesday (Aug 04) at 5AM. The primary swell is predicted to be 1.6m and 15s period with a secondary swell of 0.9m and 7s. Another secondary swell of 1.3m and 7s 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 Tuesday (Aug 11) at 2AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.1m 7s period and expected on Tuesday (Aug 04) at 2PM.
| Wave Type | Time (WITA) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Tue 4th Aug) | 5ft (1.6m) 15s |
| Best Surf | 5AM (Tue 4th Aug) | 5ft (1.6m) 15s |
| Most Powerful | 2AM (Tue 11th Aug) | 10ft (3.0m) 17s |
Table - best surf conditions forecast for Ketewel over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s get into it.
Right off the bat, we’ve got a solid, persistent SSW groundswell running, but the wind is the main player here. The first few days are a bit of a write-off with cross-on breezes chopping things up, so don’t expect much. The real action starts to build towards the end of the first week and into the second, but the overall picture is one of marginal conditions with a lot of raw energy.
We’re looking at Ketewel (reef break) for this whole run. It’s an advanced spot, and it’s inconsistent, so you’ve got to be on it when it turns on. It’s also sheltered, which means it’s picky about swell direction – the optimum is a south swell, and we’re getting SSW, so that’s a decent match.
The week kicks off with some surf on Tuesday morning, August 4th: 5ft of SSW swell with a 14-second period. The combined energy is strong (1360), but it’s a cross-on SE wind at 9 mph, making it fairly choppy. Not great. Wednesday and Thursday stay similar, with the swell pushing up to 6ft on Thursday and the period getting longer (17 seconds), but that cross-on wind just won’t let up, keeping things messy.
Friday, August 7th, is the first little glimmer. You’ve got clean, offshore ESE wind at 9 mph in the morning, with a 7ft SSW swell (17-second period) and very strong energy (2803). The afternoon goes cross-on again, but that morning window is the best on offer so far. The swell is getting big, though – over 8ft by Monday afternoon, August 10th, so that’s expert territory. Still, the wind is offshore (SSE) and the period is a very long 18 seconds, with combined energy hitting a massive 4591. This is a groundswell of serious size, and at a reef like Ketewel, that could be unreal if the tide plays ball. The long period will make it surging and powerful, best for those who know the reef.
The rest of that second week stays substantial, with 8ft to 8ft SSW swell and periods of 16-17 seconds. The wind continues to be a mix of cross-on and onshore, but there are a few more offshore moments, especially on the 18th of August with a light S wind at 6 mph. The combined energy remains in the very strong range (2708-3407).
The standout: Honestly, the pick of the litter is the Monday morning, August 10th session. You’ve got a huge 8ft SSW groundswell, a very long 18-second period, and offshore SSE wind. The combined energy of 4591 tells you there’s a ton of water moving. It’s a big, powerful, clean swell at a reef – for the advanced crew, that’s a session to mark on the calendar. Just be aware, it’s an inconsistent break, so you’ll be waiting for the sets, but when they come, they’ll be proper.
The rest of the window is a waiting game of cross-on chop and big swell. It’s not a total loss, but it’s a grind. The forecast is more reliable for the first week; the later stuff, like the 18th, is promising but a bit less certain.
Rusty.
Short Range ForecastSome drizzle, heaviest during Wed morning. Warm (max 27°C on Tue morning, min 23°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 4mm), mostly falling on Fri night. Warm (max 27°C on Fri afternoon, min 24°C on Thu night). Wind will be generally light. | ||||||||||||||||||
Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | ||||||||||||||
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 14 | SSW 14 | SSW 13 | SSW 14 | SSW 15 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 |
Wave Graph | |||||||||||||||||||
1136 | 1061 | 961 | 722 | 956 | 880 | 2047 | 2164 | 1943 | 1826 | 2729 | 2855 | 3051 | 2503 | 2271 | 2007 | 1982 | 1757 | 1396 | |
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 | cross-on | on | cross-on |
High Tide | 1:08AM2.41m | 1:10PM2.18m | 1:36AM2.42m | 1:45PM1.99m | 2:08AM2.39m | 2:26PM1.76m | 2:47AM2.32m | 3:20PM1.51m | 3:41AM2.22m | 5:05PM1.30m | 5:06AM2.13m | 8:04PM1.35m | |||||||
Low Tide | 7:15AM0.53m | 7:15PM0.42m | 7:54AM0.56m | 7:41PM0.55m | 8:40AM0.63m | 8:09PM0.71m | 9:41AM0.72m | 8:43PM0.89m | 11:12AM0.79m | 9:35PM1.08m | 1:15PM0.72m | 11:41PM1.22m | |||||||
— | 6:31 | — | — | 6:31 | — | — | 6:31 | — | — | 6:31 | — | — | 6:31 | — | — | 6:31 | — | — | |
6:16 | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | |
mm | — | — | — | — | 1 | — | — | — | — | — | — | — | 1 | — | — | 2 | 1 | — | — |
Temp °C | 24 | 27 | 26 | 24 | 26 | 27 | 25 | 27 | 27 | 24 | 26 | 27 | 24 | 26 | 26 | 24 | 25 | 26 | 24 |
Feels °C | 26 | 28 | 27 | 26 | 27 | 28 | 27 | 27 | 27 | 25 | 27 | 27 | 26 | 27 | 26 | 25 | 26 | 26 | 25 |
Swell 1 Height (m) Direction Period (s) | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 14 | SSW 15 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 |
1136 | 1061 | 961 | 722 | 956 | 880 | 2047 | 2164 | 1943 | 1826 | 2729 | 2855 | 3051 | 2503 | 2271 | 2007 | 1982 | 1757 | 1396 | |
Swell 2 Height (m) Direction Period (s) | SE 7 | SE 7 | NE 8 | SE 7 | SSW 22 | SSW 20 | — | — | — | — | SE 6 | — | — | — | — | — | — | — | SE 6 |
89 | 84 | 2 | 54 | 156 | 450 | — | — | — | — | 74 | — | — | — | — | — | — | — | 36 | |
Swell 3 Height (m) Direction Period (s) | NE 7 | SSW 14 | NE 8 | SSW 17 | ENE 7 | NE 7 | — | — | — | — | — | — | — | — | — | — | — | — | SSW 20 |
2 | 215 | 16 | 344 | 4 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | 135 | |
Wind waves Height (m) Direction Period (s) | ESE 7 | — | SE 7 | SE 7 | SE 6 | SE 6 | SE 6 | SE 6 | SE 7 | SE 6 | — | SE 6 | SE 6 | SE 6 | SE 6 | SE 5 | SE 5 | SE 6 | — |
178 | — | 86 | 106 | 46 | 54 | 60 | 67 | 97 | 92 | — | 94 | 50 | 65 | 69 | 40 | 45 | 50 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 8 | 17 | 17 | 15 | 17 | 17 | 15 | 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.











