
Surf Forecasts:
Keramas surf forecast from 3 Sep 2026:
- Best quality surf: Sunday 6 Sep, 11PM (local time) - 7ft (2.2m), 16s period, SSW swell with glassy winds.
- Most powerful swell: Wednesday 9 Sep, 5AM (local time) - 8ft (2.4m), 16s period, SSW swell with 2,938 kJ wave energy.
- Next surfable swell (1★+): Sunday 6 Sep, 11PM (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 Sunday (Sep 06) at 11PM. The primary swell is predicted to be 2.2m and 16s period. 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 16s and forecast to arrive on Wednesday (Sep 09) at 5AM. Winds are predicted to be glassy at the time the swell arrives.
| Wave Type | Time (WITA) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Sun 6th Sep) | 7ft (2.2m) 16s |
| Best Surf | 11PM (Sun 6th Sep) | 7ft (2.2m) 16s |
| Most Powerful | 5AM (Wed 9th Sep) | 8ft (2.4m) 16s |
Table - best surf conditions forecast for Keramas over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s talk about what’s on the table for the Keramas region over the next couple of weeks.
Right now, we’re looking at a bit of a slow start. The first few days are a write-off, with cross-onshore winds and poor surf conditions. That’s from Thursday 3rd September right through to Friday 4th September. The swell is there – around 4ft to 5ft from the SSW – but the wind is just messing it up. Hold your horses.
Things start to get a little more interesting from Saturday 5th September. The swell builds to 6ft to 6ft from the SSW, with a period of 16 seconds, which is a proper long-period groundswell. The wind switches to onshore, but it’s a gentle breeze. The conditions are still only marginal, and the combined energy is ramping up (1443 to 1572), so there’s some push in the water. It’s not perfect, but it’s a step up.
The real standout window looks like it kicks off around Monday 8th September. The swell holds solid at 6ft to 7ft from the SSW, and the period stretches out to 18-19 seconds. That’s a very long-period groundswell. The winds are light and onshore, which is a good sign for a reef like Keramas. The water temperature is sitting at 27°, which is about normal for this time of year. The combined energy is hitting values like 2569 and 2947, which is strong wave energy. This is where I’d be keeping an eye on the morning sessions. The onshore wind is light, so it could clean up nicely. Keramas is a consistent reef, and it’s exposed to that SSW swell, so it should handle it well. Keep in mind that with such a long period, the waves might pitch a bit hollow and the sets will be spaced out. It’s a top-tier intermediate to expert wave when it’s working.
The next week, from Tuesday 9th September through to Thursday 17th September, continues to serve up surf, but with a bit more wind. The swell stays in the 5ft to 7ft range, mostly from the SSW, with periods around 14-16 seconds. The winds are mostly a gentle breeze, sometimes cross-onshore, which will add some texture. The combined energy stays moderate to strong (1673 to 1865). It’s still surfable, especially on the mornings when the wind is lighter. The onshore wind is a bit of a theme, but for a reef, it’s workable.
Towards the end of the run, on Friday 18th September, the swell drops back to 4ft, and the period shortens to 13 seconds. The wind is cross-onshore again, and the combined energy is weak (723). It’s a poor setup, and we’re back to choppy conditions.
For the standouts, I’d be circling the mornings of Monday 8th and Tuesday 9th September. The biggest, most powerful swell, with the longest period, and the lightest winds. That’s the pick of the bunch. The rest of the window is more of a “maybe” for the adventurous, but the middle of the first week is where the magic might happen.
Rusty.
Short Range ForecastSome drizzle, heaviest during Sat night. Warm (max 28°C on Sat afternoon, min 22°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummarySome drizzle, heaviest during Sun morning. Warm (max 27°C on Sun morning, min 22°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | |||||||||||||||
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 15 | SSW 14 | SSW 14 | SW 14 | SSW 14 | SSW 16 | SSW 16 | SSW 14 | SSW 14 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 18 | SSW 16 | SSW 16 | SSW 16 | SSW 15 |
Wave Graph | |||||||||||||||||||||
933 | 770 | 561 | 630 | 395 | 672 | 1411 | 1551 | 1399 | 1318 | 1077 | 2049 | 1614 | 1570 | 1319 | 1259 | 1726 | 2068 | 2609 | 2170 | 1668 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | on | cross-on | on | on | on | on | on | glassy | on | on | glassy | on | on | glassy | on | on | glassy |
High Tide | 1:47PM1.34m | 1:47AM2.00m | 2:34PM1.13m | 2:30AM1.90m | 4:18PM0.94m | 3:36AM1.77m | 5:42AM1.70m | 9:46PM1.23m | 7:34AM1.77m | 9:48PM1.39m | 8:43AM1.89m | 10:07PM1.57m | |||||||||
Low Tide | 8:04AM0.40m | 7:10PM0.65m | 8:59AM0.50m | 7:25PM0.77m | 10:24AM0.60m | 7:17PM0.90m | 12:48PM0.59m | 2:24PM0.45m | 1:02AM1.15m | 3:11PM0.32m | 2:40AM0.96m | 3:46PM0.24m | 3:33AM0.75m | ||||||||
6:18 | — | — | 6:18 | — | — | 6:18 | — | — | 6:18 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | |
— | 6:15 | — | — | 6:15 | — | — | 6:15 | — | — | 6:15 | — | — | 6:15 | — | — | 6:15 | — | — | 6:15 | — | |
mm | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 27 | 23 | 26 | 27 | 24 | 27 | 28 | 24 | 27 | 27 | 24 | 27 | 26 | 24 | 25 | 26 | 24 | 24 | 26 | 23 |
Feels °C | 27 | 26 | 25 | 27 | 27 | 26 | 28 | 29 | 27 | 27 | 27 | 26 | 28 | 26 | 25 | 26 | 26 | 26 | 25 | 27 | 25 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SW 14 | SSW 14 | SSW 16 | SSW 16 | SSW 14 | SSW 14 | SSW 13 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 16 | SSW 16 | SSW 16 | SSW 15 |
933 | 770 | 561 | 630 | 395 | 672 | 1411 | 1551 | 1399 | 1318 | 811 | 2049 | 1614 | 1570 | 1319 | 1259 | 1202 | 2068 | 2609 | 2170 | 1668 | |
Swell 2 Height (m) Direction Period (s) | S 8 | NE 6 | ENE 7 | ENE 6 | SSW 15 | S 18 | SSW 6 | — | SSW 18 | S 18 | SSW 16 | — | SW 22 | SSW 22 | SSW 21 | SSW 19 | SSW 18 | SSW 12 | — | SSE 7 | SSE 7 |
1 | 6 | 5 | 4 | 284 | 304 | 11 | — | 443 | 232 | 1077 | — | 19 | 91 | 492 | 1144 | 1726 | 669 | — | 19 | 17 | |
Swell 3 Height (m) Direction Period (s) | S 8 | — | — | — | SSW 6 | NE 6 | NE 6 | — | — | — | — | — | — | — | — | SW 13 | — | — | — | — | — |
1 | — | — | — | 6 | 2 | 2 | — | — | — | — | — | — | — | — | 286 | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | SE 5 | SE 6 | SE 6 | SE 5 | SE 5 | SE 6 | SE 5 | SE 5 | SE 5 | SE 5 | ESE 5 | — | S 6 | — | — | — | — | — | — | — | — |
52 | 60 | 58 | 45 | 47 | 44 | 21 | 27 | 27 | 24 | 17 | — | 56 | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 35 | 14 | 14 | 35 | 0 | 14 | 14 | 0 | 14 | 14 | 0 | 14 | 14 | 0 |
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.










