Surf Forecasts:
Keramas surf forecast from 27 Aug 2026:
- Best quality surf: Friday 28 Aug, 8PM (local time) - 7ft (2.2m), 16s period, SSW swell with glassy winds.
- Most powerful swell: Friday 28 Aug, 8AM (local time) - 7.5ft (2.3m), 17s period, SSW swell with 3,066 kJ wave energy.
- Next surfable swell (1★+): Friday 28 Aug, 8PM (local time) - 7ft (2.2m), 16s 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 8PM. The primary swell is predicted to be 2.2m and 16s period with a secondary swell of 0.6m and 6s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Keramas in the next 16 days are 2.3m 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+) | 8PM (Fri 28th Aug) | 7ft (2.2m) 16s |
| Best Surf | 8PM (Fri 28th Aug) | 7ft (2.2m) 16s |
| Most Powerful | 8AM (Fri 28th Aug) | 7.5ft (2.3m) 17s |
Table - best surf conditions forecast for Keramas over the next 16 days.
The Lowdown
G’day, this is Rusty. Let’s look at what’s coming up at Keramas, a reef break that’s very consistent and exposed to the SSW swell.
The water temperature is about 81°F, which is pretty normal for this time of year.
The next few days are a bit mixed. Friday morning the 28th of August sees a solid 8ft SSW swell rolling in, with a very long period of 16 seconds and a huge combined energy of 3043 (very strong). The wind is light and offshore from the SE, so it’ll be clean. That’s big, powerful groundswell – one for the experienced crew. Friday afternoon drops slightly to 7ft, still clean, but the tide or something has the forecast iffy.
Saturday the 29th of August stays clean with offshore winds, but the swell drops to 6ft in the morning and 6ft in the arvo, with period easing from 15 to 14 seconds. Energy is still moderate to strong (1394 and 1176). Still good, but not the standout.
Sunday the 30th of August the swell backs right off to 4ft, and the wind goes cross-onshore in the afternoon, making it choppy. From Monday the 31st of August through to the end of the first week of September, the swell is all over the place – mostly 4ft to 6ft, but the wind is cross-onshore or onshore much of the time, with a lot of “poor surf conditions” flagged. The combined energy drops into the hundreds (weak to moderate). Not much to get excited about.
There’s a bit of a gap of poor options through the middle of the period. Then, Thursday the 10th of September, a small 3ft swell with a very long 18-second period in the morning, but it’s weak (energy 972). The arvo brings 5ft with 17 seconds and 1556 energy.
Now, the real standout is shaping up for Friday the 11th of September. The morning sees a 7ft SSW swell, 16-second period, and a massive 3634 energy. The wind is light offshore from the SE, so it’ll be clean. But the afternoon of Friday the 11th of September is the pick of the whole forecast: a solid 10ft SSW swell, very long 18-second period, and a whopping 6386 combined energy (very strong). Light offshore wind from the SSE. That’s huge, powerful groundswell with offshore winds – only for experts, but it has the potential to be absolutely pumping at Keramas. This is a long-range call, so it’s promising but less certain.
Saturday the 12th of September still holds 10ft SSW swell, with periods of 17 and 16 seconds, and energy over 4000. Light offshore winds again. Another cracker for the experienced crew.
If you’re a beginner, the bigger swells over 8ft are definitely not for you. The long periods (over 15 seconds) mean these are proper groundswells, which at a reef break like Keramas will produce some long, clean lines but also big sets. Keep an eye on that Friday the 11th of September afternoon session – it’s the one to aim for.
Rusty.
Short Range ForecastMostly dry. Warm (max 28°C on Fri afternoon, min 22°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 28°C on Mon morning, min 24°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | |||||||||||||||
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 16 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 19 | SSW 18 | SSW 18 | SSW 18 | SSW 18 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 |
Wave Graph | |||||||||||||||||||||
3005 | 2479 | 1957 | 1374 | 1130 | 799 | 615 | 606 | 578 | 928 | 1231 | 1683 | 2247 | 1821 | 1910 | 1633 | 1575 | 1141 | 933 | 760 | 561 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | glassy | on | on | cross | on | cross-on | glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 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 | 1:09PM1.55m | 1:13AM2.05m | 1:47PM1.34m | 1:47AM2.00m | |||||||
Low Tide | 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 | 7:19AM0.35m | 6:50PM0.54m | 8:04AM0.40m | 7:10PM0.65m | ||||||||
6:22 | — | — | 6:22 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — | — | 6:18 | — | — | |
— | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:15 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 28 | 23 | 27 | 28 | 23 | 28 | 28 | 24 | 28 | 28 | 24 | 28 | 28 | 24 | 28 | 27 | 25 | 27 | 28 | 25 |
Feels °C | 28 | 28 | 27 | 29 | 29 | 26 | 30 | 29 | 28 | 29 | 29 | 27 | 28 | 28 | 27 | 29 | 27 | 28 | 28 | 28 | 27 |
Swell 1 Height (m) Direction Period (s) | 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 18 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 |
3005 | 2479 | 1957 | 1374 | 1130 | 799 | 615 | 606 | 365 | 928 | 1231 | 1683 | 2247 | 1821 | 1910 | 1633 | 1575 | 1141 | 933 | 760 | 561 | |
Swell 2 Height (m) Direction Period (s) | SE 6 | SE 6 | SE 6 | SE 6 | S 26 | SSW 23 | SSW 21 | SSW 21 | SSW 19 | SSW 12 | SSW 11 | SE 6 | SE 5 | NE 8 | SE 6 | NE 6 | NE 7 | NE 7 | NE 7 | S 8 | NE 6 |
38 | 25 | 16 | 20 | 13 | 54 | 180 | 253 | 578 | 274 | 204 | 39 | 27 | 9 | 89 | 6 | 8 | 2 | 2 | 1 | 2 | |
Swell 3 Height (m) Direction Period (s) | — | — | S 5 | — | S 21 | SW 23 | SSW 21 | NE 6 | SE 6 | NE 6 | NE 7 | SSW 11 | NE 7 | — | — | — | — | — | S 8 | S 8 | S 20 |
— | — | 2 | — | 9 | 86 | 180 | 6 | 26 | 6 | 8 | 138 | 7 | — | — | — | — | — | 1 | 1 | 7 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | SE 6 | SE 5 | SE 5 | SE 5 | — | SE 5 | SE 5 | ESE 6 | — | SE 6 | — | SE 6 | SE 5 | SE 6 | SE 6 | SE 6 | SE 6 |
— | — | — | — | 24 | 29 | 28 | 66 | — | 18 | 25 | 68 | — | 69 | — | 56 | 60 | 69 | 60 | 75 | 102 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 14 | 14 | 0 | 14 | 14 | 14 | 14 | 14 | 0 | 14 | 14 | 14 | 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.











