Surf Forecasts:
Keramas surf forecast from 23 Aug 2026:
- Best quality surf: Friday 28 Aug, 5AM (local time) - 7ft (2.2m), 17s 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★+): Friday 28 Aug, 5AM (local time) - 7ft (2.2m), 17s 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 Friday (Aug 28) at 5AM. The primary swell is predicted to be 2.2m and 17s period with a secondary swell of 1.1m and 13s. 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+) | 5AM (Fri 28th Aug) | 7ft (2.2m) 17s |
| Best Surf | 5AM (Fri 28th Aug) | 7ft (2.2m) 17s |
| 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 folks, Rusty here. Let’s have a look at what’s on offer for the coming weeks.
We’re focusing on the east coast, and the pick of the bunch is the world-class reef at Keramas. This spot is very consistent, so it’s always in the conversation. The water here is sitting right around average for this time of year, so no surprises there.
The outlook kicks off on Monday, 24 August. We’ve got a solid 6ft swell pushing in from the SSW, with a very long period of 16 seconds. That’s proper groundswell energy. The combined energy is a strong 1660, which is a lot of water moving. However, the wind is a cross-onshore breeze at 9 mph, leaving it a bit lumpy and choppy. The tide conditions are also not playing ball, so Monday morning is a write-off for a clean session. The afternoon doesn’t look much better, with the same issues.
Tuesday, 25 August, sees the swell drop a touch to 5ft, still from the SSW with that lovely long 16-second period. The combined energy is still solid at 1190. But again, that persistent 9 mph cross-onshore breeze is keeping things messy. The tide is still a factor, so it’s a frustrating watch.
Wednesday, 26 August, is a real low point. The swell drops to 5ft with a period of 14 seconds, and the energy is down to 824. The wind is directly onshore, making for poor conditions. It’s a day to leave the boards in the car.
The end of the week is where things get interesting. Friday, 28 August, brings a proper pulse. The morning shows a solid 8ft SSW swell, still with a 16-second period. The combined energy rockets up to 3069 – that’s serious power. The wind is onshore, but it’s a light 6 mph in the afternoon. This is a big swell, over 8ft, so this is strictly for experts. The wind cleans up enough in the afternoon to make it tempting, but it will be a beast of a paddle.
The first week of September keeps the swell alive. Tuesday, 1 September, offers another 6ft SSW swell with a 17-second period in the afternoon, and the wind drops to a light 6 mph. The energy is a strong 1933. This is a standout moment – that long period and light offshore wind are a real treat for a reef like Keramas, giving it that classic, fast, hollow shape.
Into the second week, the swell hangs on. By Sunday, 6 September, we see another noteworthy pulse. The afternoon has a 6ft SSW swell, but the period stretches to a massive 18 seconds. The combined energy jumps to 2377, and the wind is a light 6 mph onshore. This is a promising long-range signal, but it’s a bit further out, so keep an eye on the forecasts.
Overall, the best window looks to be the afternoon of 1 September and the afternoon of 6 September. The 1st is the more reliable bet with that light wind and clean conditions. The 6th is a promising long-range gem. The rest of the period is a mix of consistent swell but frustrating onshore winds.
Rusty, signing off.
Short Range ForecastMostly dry. Warm (max 27°C on Mon morning, min 23°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Fri morning. Warm (max 28°C on Thu morning, min 23°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | |||||||||||||||
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 16 | SSW 16 | SSW 14 | SSW 16 | SSW 16 | SSW 14 | 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 |
Wave Graph | |||||||||||||||||||||
1613 | 1376 | 886 | 1093 | 1107 | 956 | 788 | 754 | 536 | 463 | 731 | 2581 | 3042 | 2479 | 2136 | 1356 | 1010 | 692 | 615 | 491 | 584 | |
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 | on | on | cross-on | on | on | cross-on | on | on | cross-on | cross-on | on | cross-on | on | on | cross-on |
High Tide | 10:32PM1.25m | 8:30AM1.69m | 10:32PM1.36m | 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 | ||||||||
Low Tide | 3:32PM0.48m | 2:25AM1.12m | 3:57PM0.36m | 3:15AM0.99m | 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 | ||||||||
6:24 | — | — | 6:24 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:20 | — | — | |
— | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | 1 | — | — | — |
Temp °C | 27 | 27 | 24 | 27 | 27 | 24 | 27 | 27 | 25 | 28 | 28 | 25 | 27 | 28 | 25 | 28 | 27 | 25 | 28 | 28 | 24 |
Feels °C | 27 | 27 | 26 | 26 | 27 | 26 | 28 | 28 | 27 | 28 | 29 | 27 | 28 | 28 | 27 | 29 | 28 | 27 | 30 | 29 | 26 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 16 | SSW 14 | SSW 16 | SSW 16 | SSW 14 | 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 | SSE 7 |
1613 | 1376 | 886 | 1093 | 1107 | 956 | 788 | 754 | 536 | 463 | 619 | 2581 | 3042 | 2479 | 2136 | 1356 | 1010 | 692 | 615 | 491 | 120 | |
Swell 2 Height (m) Direction Period (s) | — | SW 20 | SSW 18 | SSW 6 | SSW 6 | SSW 6 | ENE 6 | NE 6 | SSW 17 | SSW 12 | S 12 | SSW 13 | SE 5 | SE 5 | — | SE 6 | S 22 | SSW 24 | SE 6 | SSW 21 | SSW 12 |
— | 60 | 207 | 8 | 14 | 14 | 4 | 6 | 164 | 251 | 279 | 350 | 34 | 9 | — | 46 | 9 | 54 | 54 | 258 | 314 | |
Swell 3 Height (m) Direction Period (s) | — | — | NE 6 | — | — | — | — | — | SSW 7 | SSW 22 | SSW 20 | — | — | SSW 6 | — | — | S 26 | SSW 23 | SSW 21 | SW 21 | SSW 19 |
— | — | 2 | — | — | — | — | — | 17 | 263 | 731 | — | — | 6 | — | — | 13 | 54 | 180 | 361 | 584 | |
Wind waves Height (m) Direction Period (s) | SE 5 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 5 | SE 5 | SE 5 | SSE 5 | SE 5 | — | — | — | ESE 6 | — | SE 6 | SE 6 | SE 6 | SE 6 | — |
45 | 60 | 72 | 89 | 92 | 64 | 32 | 40 | 22 | 30 | 19 | — | — | — | 12 | — | 85 | 84 | 83 | 60 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 35 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 |
Best forecast wave conditions in Sanur - Bali | |||||||||||||||||||||
Best forecast wave conditions in Indonesia | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
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.











