Surf Forecasts:
Keramas surf forecast from 25 Aug 2026:
- Best quality surf: Thursday 27 Aug, 8PM (local time) - 4.5ft (1.3m), 19s period, SSW swell with glassy winds.
- Most powerful swell: Friday 28 Aug, 8AM (local time) - 8ft (2.4m), 17s period, SSW swell with 3,309 kJ wave energy.
- Next surfable swell (1★+): Thursday 27 Aug, 2AM (local time) - 4.5ft (1.3m), 13s period with SSW swell.
Best Forecast Surf Conditions for Keramas this week:
The surf forecast for Keramas over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Aug 27) at 2AM. The primary swell is predicted to be 1.3m and 13s period with a secondary swell of 0.6m and 5s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Keramas in the next 16 days are 2.4m 17s and forecast to arrive on Friday (Aug 28) at 8AM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (WITA) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Thu 27th Aug) | 4.5ft (1.3m) 13s |
| Best Surf | 8PM (Thu 27th Aug) | 4.5ft (1.3m) 19s |
| Most Powerful | 8AM (Fri 28th Aug) | 8ft (2.4m) 17s |
Table - best surf conditions forecast for Keramas over the next 16 days.
The Lowdown
Alright, Rusty here, and I've got the read on the next couple of weeks. Honestly, it's a bit of a mixed bag, and we're not looking at anything that's going to be perfect. The best we can say is that there's a steady pulse of SSW swell, but the wind is the main character in this story, and it's not always playing nice.
The whole period starts with a bit of a dud. Wednesday the 26th of August has some swell around 5ft, but it's coming in with a cross-onshore wind that's messing up the surface. The wave energy is moderate (856), but it's a bit of a chop fest. Thursday morning sees the swell drop a little to 4ft, but the wind is better, and we get a much longer period of 16 seconds, pushing the energy up to a solid 1127. That's a sign of some proper groundswell trying to get in. That afternoon, the period actually jumps to 20 seconds, which is very long and pushes the energy to 1647. But don't get too excited; the swell is tiny at 3ft.
Friday the 28th of August is where things start to get interesting. The swell jumps up to 8ft in the morning, with a period of 16 seconds and a strong energy reading of 3037. The wind is still cross-onshore though, which is a shame. That afternoon the wind does go light and onshore, which is better, but the swell drops a touch to 8ft. The water temp is about what you'd expect for this time of year, nothing weird going on there.
The standout in this whole window is really the Saturday the 29th of August. The swell is a solid 6ft, still from the SSW, with a period of 15 seconds and healthy energy (1524). The wind is light and onshore, which is a major positive. That wind condition will make the waves at Keramas (a reef break) as clean as they get. This is a very consistent spot, so you know there will be waves. Just keep in mind that it can get crowded sometimes. The crowd is the only thing that might put a bit of a damper on it. The size is fine for intermediate surfers, but it's getting a bit punchy for beginners.
The rest of the first week into the second week is a bit of a letdown. From Sunday the 30th of August, the swell drops back to around 4ft to 5ft, and the wind goes back to being cross-onshore, which makes things a bit bumpy. The energy levels are moderate, bouncing around between 824 and 1713. There's a brief pulse of energy up to 1831 on Tuesday the 1st of September, but the wind is cranking at 12 mph, creating a moderate cross-onshore and choppy mess.
The second week, from the 3rd of September onward, the trend is for smaller, weaker swell. The energy levels drop back to the 800-1000 range, and the wind is light and onshore in the mornings. It's not terrible, but it's not the quality we saw on that Saturday. There's a bit of a bump on the 5th of September with 6ft swell and a 16-second period, but the wind is onshore, so it will be a bit soft.
The best call is to point you to Saturday the 29th of August at Keramas. The conditions will be the most aligned of the whole 16 days, with a decent size, long period, and light wind. It's the one to aim for.
Rusty.
Short Range ForecastMostly dry. Warm (max 28°C on Thu morning, min 21°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummarySome drizzle, heaviest during Mon night. Warm (max 28°C on Sat afternoon, min 23°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | |||||||||||||||
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 16 | SSW 20 | SSW 18 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 19 | SSW 18 | SSW 18 | SSW 18 | SSW 17 | SSW 16 | SSW 17 |
Wave Graph | |||||||||||||||||||||
788 | 754 | 615 | 554 | 731 | 2357 | 3005 | 2682 | 1957 | 1374 | 1130 | 799 | 615 | 606 | 578 | 928 | 1231 | 1664 | 1900 | 1799 | 1865 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | glassy | cross-on | on | cross-on | on | on | glassy | on | on | glassy | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on |
High Tide | 9:14AM1.81m | 10:43PM1.48m | 9:51AM1.91m | 10:59PM1.61m | 10:24AM1.97m | 11:16PM1.73m | 10:57AM1.98m | 11:36PM1.85m | 11:29AM1.95m | 11:57PM1.95m | 12:01PM1.86m | 00:19AM2.02m | 12:34PM1.72m | 00:45AM2.06m | |||||||
Low Tide | 4:19PM0.28m | 3:52AM0.86m | 4:41PM0.22m | 4:25AM0.72m | 5:03PM0.20m | 4:58AM0.59m | 5:25PM0.22m | 5:31AM0.48m | 5:46PM0.27m | 6:05AM0.39m | 6:08PM0.34m | 6:41AM0.35m | 6:29PM0.43m | ||||||||
6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — | — | |
— | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — |
Temp °C | 27 | 27 | 23 | 28 | 28 | 24 | 27 | 28 | 23 | 27 | 28 | 23 | 27 | 28 | 24 | 28 | 28 | 25 | 28 | 28 | 25 |
Feels °C | 27 | 27 | 25 | 29 | 28 | 27 | 28 | 29 | 27 | 28 | 29 | 26 | 29 | 29 | 27 | 29 | 29 | 27 | 29 | 28 | 27 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 14 | SSW 13 | SSW 16 | SSW 15 | SSW 18 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 12 | SSW 18 | SSW 18 | SSW 18 | SSW 17 | SSW 16 | SSW 17 |
788 | 754 | 615 | 554 | 619 | 2357 | 3005 | 2682 | 1957 | 1374 | 1130 | 799 | 615 | 606 | 365 | 928 | 1231 | 1664 | 1900 | 1799 | 1865 | |
Swell 2 Height (m) Direction Period (s) | SSW 7 | NE 7 | SE 5 | SSW 12 | S 12 | SSW 13 | SE 5 | SE 5 | S 5 | SE 6 | S 26 | SE 6 | SSW 21 | SSW 21 | SSW 19 | SSW 12 | SSW 12 | SSW 11 | NE 7 | NE 6 | NE 7 |
17 | 7 | 21 | 299 | 279 | 350 | 32 | 17 | 5 | 8 | 13 | 18 | 180 | 256 | 578 | 274 | 207 | 140 | 7 | 6 | 8 | |
Swell 3 Height (m) Direction Period (s) | — | — | SSW 17 | SSW 21 | SSW 20 | — | — | — | SE 6 | — | S 21 | SSW 23 | S 6 | SSW 21 | SE 6 | NE 6 | NE 7 | NE 7 | — | — | — |
— | — | 164 | 260 | 731 | — | — | — | 8 | — | 9 | 54 | 6 | 256 | 24 | 6 | 9 | 8 | — | — | — | |
Wind waves Height (m) Direction Period (s) | SE 5 | SE 5 | — | SE 5 | SE 5 | — | — | — | — | — | ESE 6 | — | SE 5 | SE 5 | — | SE 5 | SE 5 | SE 6 | SE 6 | SE 6 | SE 6 |
47 | 58 | — | 13 | 17 | — | — | — | — | — | 3 | — | 23 | 40 | — | 31 | 41 | 64 | 67 | 100 | 139 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 14 | 14 | 0 | 14 | 14 | 14 | 14 | 14 | 0 | 14 | 14 | 0 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 |
Best forecast wave conditions in Sanur - Bali | |||||||||||||||||||||
Best forecast wave conditions in Indonesia | |||||||||||||||||||||
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Information about the Keramas Surf forecast
The above surf forecast table for Keramas provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Keramas can be found by selecting the local surf guide option on the grey menu. Our Keramas 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 (Keramas) 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 Keramas 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.
Keramas is 10 km (6 miles) from Klungkung. If you plan a holiday in Sanur - Bali, look for hotels and other accommodation in Klungkung. Klungkung has rooms for a wide range of budgets as well as car hire and transport links.











