Surf Forecasts:
Keramas surf forecast from 28 Aug 2026:
- Best quality surf: Saturday 29 Aug, 8AM (local time) - 6ft (1.9m), 15s period, SSW swell with glassy winds.
- Most powerful swell: Tuesday 1 Sep, 8AM (local time) - 6ft (1.9m), 18s period, SSW swell with 2,144 kJ wave energy.
- Next surfable swell (1★+): Saturday 29 Aug, 8AM (local time) - 6ft (1.9m), 15s 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 Saturday (Aug 29) at 8AM. The primary swell is predicted to be 1.9m and 15s period with a secondary swell of 0.5m 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 1.9m 18s and forecast to arrive on Tuesday (Sep 01) 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+) | 8AM (Sat 29th Aug) | 6ft (1.9m) 15s |
| Best Surf | 8AM (Sat 29th Aug) | 6ft (1.9m) 15s |
| Most Powerful | 8AM (Tue 1st Sep) | 6ft (1.9m) 18s |
Table - best surf conditions forecast for Keramas over the next 16 days.
The Lowdown
G’day, Rusty here. Look, I’ve been staring at the charts for Keramas and, to be honest, this is a frustrating run. There’s swell in the water almost the whole way through, but the wind is just not playing ball for most of it. We’ve got a solid, consistent supply of SSW groundswell, but it’s coming in with a cross-onshore breeze that’s going to mess up that famous Keramas (Bali) glass. The water is sitting at 81°, which is pretty much what you’d expect for this time of year – no surprises there.
Let’s break it down. From this Saturday, the 29th of August, right through the first week of September, the wind is mostly from the SE. That puts us in a cross-onshore flow, which is going to chop up the surface. We’re looking at chest to head-high sets, around 4 to 6 ft, with periods of 13 to 18 seconds – so there’s proper energy in the water (combined energy readings bouncing between 941 and 1997), but it’s going to be bumpy. The only real windows of clean conditions are when the wind swings a little more SSE, giving us an offshore, but even then, the forecast flags it as “marginal” or “poor.” It’s a real shame because the swell is there, but the quality is just not.
There is a small gap of really poor conditions around the 3rd and 4th of September where the swell drops off and the wind is still messy. Not worth paddling out.
Now, here’s where it gets interesting. If you can hold out, the second week has some real potential. The standout period looks to be from Tuesday the 8th of September onwards. The wind finally looks like it’s going to ease off and swing more offshore from the SSE and S, especially in the mornings. On the morning of the 8th, we’ve got a 5 ft SSW swell, but the real kicker is the afternoon – a jump to 6 ft from the S with a period of 16 seconds and a massive combined energy of 3065. That’s a strong pulse. Then Wednesday the 9th morning sees 7 ft SSW at 16 seconds, and the wind is light offshore. That is the best looking session on the board: clean, solid 7 ft sets, long period groundswell, and light offshore wind. That’s a proper Keramas day for experienced surfers. It’s a bit big for beginners, but for anyone comfortable in the 6 ft range, that is the one to target. The afternoon of the 13th of September also looks very promising with a 7 ft SSW swell and a combined energy of 3548, but that’s a long way out, so treat it as a promising possibility rather than a certainty.
So, to sum it up: the first week is a write-off thanks to the wind. Don’t bother. The real action starts from Tuesday the 8th of September, with Wednesday the 9th morning being the absolute standout. After that, there are more windows of clean, offshore conditions with solid swell, so the second week is where you want to be.
Rusty.
Short Range ForecastMostly dry. Warm (max 29°C on Sun afternoon, min 23°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 28°C on Tue morning, min 24°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | |||||||||||||||
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 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 | SSW 14 | SSW 14 | SSW 14 |
Wave Graph | |||||||||||||||||||||
1374 | 1130 | 811 | 615 | 606 | 578 | 928 | 1231 | 1683 | 1944 | 1821 | 1910 | 1614 | 1408 | 1141 | 933 | 760 | 561 | 638 | 366 | 743 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | on | cross-on | glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | on | on | on |
High Tide | 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 | 2:34PM1.13m | 2:30AM1.90m | |||||||
Low Tide | 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 | 8:59AM0.50m | 7:25PM0.77m | ||||||||
6:22 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — | — | 6:18 | — | — | 6:18 | — | — | |
— | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:15 | — | — | 6:15 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 28 | 28 | 24 | 28 | 29 | 24 | 27 | 27 | 25 | 28 | 28 | 24 | 28 | 27 | 25 | 27 | 28 | 25 | 27 | 28 | 25 |
Feels °C | 29 | 29 | 27 | 29 | 30 | 27 | 29 | 28 | 28 | 29 | 29 | 27 | 29 | 27 | 27 | 28 | 28 | 26 | 29 | 29 | 27 |
Swell 1 Height (m) Direction Period (s) | 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 | SSW 14 | SSW 14 | SSW 14 |
1374 | 1130 | 811 | 615 | 606 | 365 | 928 | 1231 | 1683 | 1944 | 1821 | 1910 | 1614 | 1408 | 1141 | 933 | 760 | 561 | 638 | 366 | 743 | |
Swell 2 Height (m) Direction Period (s) | SE 6 | S 26 | SE 6 | SSW 21 | SSW 21 | SSW 19 | SSW 12 | SSW 11 | SSW 11 | NE 7 | NE 7 | NE 7 | NE 7 | — | — | S 8 | SSW 6 | — | SSW 6 | SW 13 | SE 5 |
15 | 13 | 24 | 180 | 253 | 578 | 274 | 204 | 105 | 7 | 9 | 8 | 7 | — | — | 1 | 7 | — | 7 | 286 | 34 | |
Swell 3 Height (m) Direction Period (s) | S 6 | S 21 | SSW 23 | SSW 21 | NE 7 | SE 6 | NE 7 | NE 7 | NE 7 | — | — | — | — | — | — | S 20 | NE 6 | — | NE 6 | SSW 6 | SSW 6 |
11 | 9 | 54 | 180 | 8 | 28 | 7 | 8 | 7 | — | — | — | — | — | — | 7 | 1 | — | 2 | 13 | 12 | |
Wind waves Height (m) Direction Period (s) | — | SE 6 | — | SE 6 | SE 5 | ESE 6 | SE 5 | SE 5 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 5 | SE 6 | SE 6 | SE 6 | SE 6 | — |
— | 32 | — | 44 | 74 | 55 | 23 | 34 | 54 | 46 | 84 | 139 | 56 | 69 | 84 | 45 | 60 | 69 | 60 | 44 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 14 | 14 | 14 | 14 | 14 | 0 | 14 | 14 | 14 | 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.











