
Surf Forecasts:
Keramas surf forecast from 31 Jul 2026:
- Best quality surf: Saturday 1 Aug, 11PM (local time) - 5ft (1.6m), 18s period, SSW swell with glassy winds.
- Most powerful swell: Friday 7 Aug, 5AM (local time) - 7ft (2.2m), 17s period, SSW swell with 2,929 kJ wave energy.
- Next surfable swell (1★+): Saturday 1 Aug, 11PM (local time) - 5ft (1.6m), 18s 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 01) at 11PM. The primary swell is predicted to be 1.6m and 18s period with a secondary swell of 0.8m and 7s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Keramas in the next 16 days are 2.2m 17s and forecast to arrive on Friday (Aug 07) at 5AM. 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+) | 11PM (Sat 1st Aug) | 5ft (1.6m) 18s |
| Best Surf | 11PM (Sat 1st Aug) | 5ft (1.6m) 18s |
| Most Powerful | 5AM (Fri 7th Aug) | 7ft (2.2m) 17s |
Table - best surf conditions forecast for Keramas over the next 16 days.
The Lowdown
Alright, this is Rusty, and I’m lookin’ straight at Bali for the next couple weeks.
Alright folks, we gotta talk about Keramas. The finder’s told me we’re in for a long stretch of waves, but the conditions are gonna keep us on our toes. The water’s sitting at 81.3°F which is about normal for this time of year.
Right out of the gate, from Friday the 31st of July through the first week of August, there’s swell on the cards, but it’s a frustrating one. You’ve got solid SSW groundswell coming in, with periods hanging around 15 to 18 seconds – that’s proper long-period energy that usually loves a reef like Keramas. But the wind is a real pain. It’s coming mostly from the SE and SSE, which puts it cross-onshore to onshore. The wave state notes are calling it "fairly choppy" and the combined energy for those first few days sits around 1200 to 1600 – that’s moderate energy – but the chop will be messin’ with the lines. Crowds are "sometimes" here, which isn't a shock, but with the wind being onshore, the place won't be at its best.
The spread from the 31st through the 5th of August is a slow burn. Swell height sits around 4ft to 6ft. It’s surfable, but the wind is killin’ the quality. It’s hard to get excited about it.
Now, hold onto your boardies, because around the 6th of August the swell starts to pump up. We’re seeing chest to head-high waves at 7ft, and the combined energy jumps right up into the strong territory. That trend keeps building. The 7th and 8th of August continue that with 7.5ft to 7ft swell. But here’s the rub: the wind is still stubborn from the SE at 15 km/h, so it’s still cross-onshore or onshore. It’s gonna be lumpy. The local knowledge will tell ya to look for the tide, but the wind is the story.
The real standout, the one you gotta circle on your calendar, is Thursday the 13th of August. That afternoon session, the swell jumps to 11.5ft from the SSW, with a period of 18 seconds. The combined energy hits 6475 – that is very strong, serious energy. It’s also 10ft all morning. The wind finally shifts around to a light SSW breeze at 10 km/h. That’s almost a light cross-onshore, but with a touch of offshore angle, giving us "light cross-onshore with small wind ripples." This is your window. For experienced surfers, that’s a session. For anyone else, that’s too solid. It’s a reef break, so that long period groundswell will be throwing out some heavy barrels.
Looking further out, the 14th and 15th of August are still pumping with 10ft and 8ft swell, but the wind goes back to being more direct cross-onshore from the SSW. The energy is still strong, but that wind will mean less perfection than on the 13th.
The short version: This whole 16-day window is a building swell followed by a big pulse. Most of it is compromised by onshore wind. The one true standout is the afternoon of Thursday the 13th of August when the biggest swell meets the best wind. If you’re an experienced surfer, that’s the score.
Short Range ForecastMostly dry. Warm (max 28°C on Sun morning, min 23°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Wed morning. Warm (max 28°C on Mon morning, min 23°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | |||||||||||||||
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 17 | SSW 17 | SSW 16 | SSW 16 | SSW 18 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 14 | SSW 15 | SSW 18 | SSW 17 | SSW 16 | SSW 16 |
Wave Graph | |||||||||||||||||||||
804 | 827 | 950 | 838 | 1567 | 1514 | 1945 | 1899 | 1762 | 1220 | 1220 | 1254 | 1187 | 1075 | 817 | 1114 | 1067 | 2492 | 2660 | 2358 | 2254 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross-on | on | cross-on | glassy | cross-on | cross-on | cross-on | on | cross-on | cross-on | on | on | cross-on | on | on | cross-on | cross-on | on | cross-on |
High Tide | 11:11AM2.02m | 00:19AM1.64m | 11:43AM1.99m | 00:41AM1.72m | 12:14PM1.92m | 1:04AM1.79m | 12:47PM1.79m | 1:29AM1.85m | 1:22PM1.63m | 1:57AM1.88m | 2:01PM1.44m | 2:30AM1.89m | 2:51PM1.22m | 3:13AM1.87m | |||||||
Low Tide | 6:01PM0.15m | 5:45AM0.71m | 6:24PM0.18m | 6:21AM0.66m | 6:47PM0.25m | 6:58AM0.63m | 7:09PM0.35m | 7:39AM0.61m | 7:31PM0.46m | 8:26AM0.61m | 7:53PM0.58m | 9:24AM0.63m | 8:15PM0.71m | ||||||||
6:33 | — | — | 6:31 | — | — | 6:31 | — | — | 6:31 | — | — | 6:31 | — | — | 6:31 | — | — | 6:31 | — | — | |
— | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | 1 | — | — | — |
Temp °C | 26 | 27 | 24 | 27 | 26 | 24 | 28 | 28 | 24 | 28 | 28 | 24 | 27 | 26 | 24 | 26 | 27 | 24 | 25 | 27 | 24 |
Feels °C | 27 | 27 | 26 | 29 | 28 | 27 | 30 | 30 | 27 | 31 | 30 | 27 | 29 | 27 | 27 | 28 | 28 | 26 | 26 | 28 | 25 |
Swell 1 Height (m) Direction Period (s) | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 18 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 14 | SSW 15 | SSW 18 | SSW 17 | SSW 16 | SSW 16 |
804 | 827 | 950 | 838 | 1567 | 1514 | 1945 | 1899 | 1762 | 1220 | 1220 | 1254 | 1187 | 1075 | 817 | 1114 | 1067 | 2492 | 2660 | 2358 | 2254 | |
Swell 2 Height (m) Direction Period (s) | SSW 13 | SSW 13 | SE 6 | S 20 | NE 7 | SE 7 | SE 6 | NE 7 | SE 7 | SE 7 | SE 7 | SE 7 | SSW 14 | SW 16 | SSW 17 | SSW 22 | SSW 20 | — | — | SSW 22 | — |
396 | 235 | 58 | 196 | 8 | 43 | 24 | 18 | 60 | 57 | 69 | 57 | 215 | 376 | 355 | 156 | 567 | — | — | 45 | — | |
Swell 3 Height (m) Direction Period (s) | S 24 | SSW 22 | SSW 20 | NE 7 | S 7 | NE 7 | NE 7 | — | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | SE 6 | NE 7 | NE 7 | — | — | — | — |
11 | 46 | 221 | 2 | 1 | 7 | 7 | — | 18 | 12 | 8 | 8 | 8 | 8 | 31 | 2 | 2 | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | SE 6 | SE 7 | SE 6 | SE 6 | SE 6 | — | — | SE 4 | ESE 7 | — | — | — | SE 7 | SE 6 | — | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 |
69 | 97 | 104 | 54 | 56 | — | — | 28 | 102 | — | — | — | 54 | 56 | — | 24 | 34 | 54 | 69 | 56 | 50 | |
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.











