
Surf Forecasts:
Keramas surf forecast from 20 Jul 2026:
- Most powerful swell: Monday 20 Jul, 11PM (local time) - 6ft (1.8m), 16s period, SSW swell with 1,613 kJ wave energy.
Best Forecast Surf Conditions for Keramas this week:
The most powerful waves expected at Keramas in the next 16 days are 1.8m 16s and forecast to arrive on Monday (Jul 20) at 11PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 15s period and expected on Sunday (Jul 26) at 5AM.
| Wave Type | Time (WITA) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11PM (Mon 20th Jul) | 6ft (1.8m) 16s |
Table - best surf conditions forecast for Keramas over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s have a look at what’s coming up for our local waves.
Well, to be honest, the next week or so is looking pretty average. The wind has been a real pain, blowing cross-onshore most of the time and that’s been messing with the surface. The swell is there, but it’s not showing its best side.
Keramas is a top-tier reef break, and it’s very consistent. It’s an intermediate wave, but it can get serious. The water temperature is sitting at 82°, which is about 2° warmer than usual for this time of year – a nice little tropical treat. The wind is mostly from the SE, which is cross-on for this spot, and that’s why we’re seeing a lot of “marginal” or “poor” ratings.
Let’s walk through it. Starting Monday, July 20th, we’ve got a 7ft SSW groundswell with a very long period of 16 seconds. That’s a lot of energy and it’s a proper groundswell. But the wind is a cross-onshore 9 mph, so it’s going to be a bit choppy. The conditions are marginal, and the tide could be a factor. It’s not a write-off, but it’s not a day for the photos.
Tuesday the 21st starts with a bit more wind at 12 mph, dropping to 9 mph in the afternoon. The swell is still a solid 6ft, but again, it’s cross-on and choppy. Not great.
Wednesday the 22nd, the swell drops to 4ft, and we’re firmly in “poor surf conditions” territory. This trend continues right through until the end of the month. The wind is a constant issue, and the swell quality is low.
We do see a little flicker of hope on Thursday, July 30th. The morning shows a 4ft SSW groundswell with a period of 16 seconds, and the wind drops to a light 6 mph. The energy is strong, but the wind is still cross-on. It’s marginal, but the lighter breeze makes it the most interesting morning in a while. The afternoon has a bit more size at 5ft, but the energy is pumping. Still, it’s a light cross-on, so it’s going to be a bit bumpy.
The first few days of August are much the same story. The wind is still a problem, but the swell is consistent. The best of a bad bunch looks like Tuesday, August 4th, where we have a 5ft SSW groundswell, period of 14 seconds, and the wind is actually onshore in the morning and then turning to onshore in the afternoon. The energy is huge, but the wind is just not cooperating. It’s a real shame.
So, the standout? There really isn’t one. The best I can say is that the period from July 30th to August 4th has the most consistent swell energy, with the lightest winds on the 30th. If you are desperate, Thursday the 30th of July is your best bet, but keep your expectations in check. The wind is going to be the boss, and it’s not being kind.
If you’re a beginner, the swell is mostly over 5ft, so it’s going to be a bit much. For the more experienced, the wind is just going to make it feel like a fight.
Honestly, for the next 16 days, it’s a waiting game. The swell is there, but the wind is the enemy. It’s more of a “check the forecast every day” situation than a “mark your calendar” one.
Rusty.
Short Range ForecastHeavy rain (total 21mm), heaviest during Mon afternoon. Warm (max 25°C on Mon afternoon, min 22°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 15mm), heaviest on Sun morning. Warm (max 26°C on Sat morning, min 23°C on Thu night). Wind will be generally light. | |||||||||||||||||||
Mon 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | ||||||||||||||
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 14 | SSW 14 | SSW 13 | SSW 13 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 17 | SSW 16 | SSW 15 | SSW 14 | SE 9 | SE 8 | SE 8 | SE 8 |
Wave Graph | ||||||||||||||||||||
1899 | 1592 | 1114 | 917 | 649 | 491 | 261 | 228 | 289 | 549 | 265 | 246 | 372 | 758 | 639 | 536 | 695 | 542 | 398 | 475 | |
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 | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 2:01PM1.57m | 2:49AM1.81m | 2:45PM1.34m | 3:28AM1.77m | 3:42PM1.13m | 4:13AM1.72m | 5:35PM0.99m | 5:13AM1.66m | 6:30AM1.65m | 10:35PM1.11m | 7:43AM1.69m | 10:36PM1.20m | ||||||||
Low Tide | 8:12PM0.50m | 9:16AM0.73m | 8:35PM0.65m | 10:24AM0.77m | 8:55PM0.79m | 11:58AM0.76m | 9:08PM0.91m | 1:53PM0.68m | 3:01PM0.55m | 11:59PM1.11m | 3:43PM0.42m | 2:12AM1.09m | ||||||||
— | — | 6:33 | — | — | 6:33 | — | — | 6:33 | — | — | 6:33 | — | — | 6:33 | — | — | 6:33 | — | — | |
6:15 | — | — | 6:15 | — | — | 6:15 | — | — | 6:15 | — | — | 6:15 | — | — | 6:15 | — | — | 6:15 | — | |
mm | 2 | 4 | 2 | 2 | 4 | 2 | 2 | 1 | 2 | 1 | 1 | 2 | 1 | 2 | 1 | — | 4 | 3 | 2 | 8 |
Temp °C | 25 | 24 | 25 | 25 | 24 | 24 | 24 | 23 | 24 | 24 | 23 | 25 | 25 | 23 | 26 | 26 | 24 | 26 | 25 | 24 |
Feels °C | 26 | 25 | 25 | 26 | 25 | 24 | 24 | 23 | 24 | 23 | 23 | 25 | 25 | 23 | 25 | 26 | 25 | 25 | 24 | 24 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 16 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 12 | SSW 11 | SSW 14 | SSW 14 | SSW 13 | SSW 17 | SSE 8 | SSW 15 | SSE 8 | SSW 14 | SSW 14 | SSW 13 | SE 8 |
1899 | 1592 | 1114 | 917 | 649 | 491 | 261 | 190 | 130 | 549 | 265 | 246 | 372 | 318 | 639 | 423 | 336 | 265 | 253 | 475 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | S 19 | SSW 18 | SSW 7 | SSW 16 | SSW 15 | SSW 14 | SW 18 | SSW 10 | SSW 17 | SSW 13 | SSW 16 | SW 18 | SSW 14 | SW 16 | SW 15 | NE 6 | SSW 13 |
— | — | — | 7 | 61 | 5 | 198 | 228 | 289 | 12 | 74 | 235 | 189 | 758 | 12 | 536 | 40 | 33 | 2 | 198 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | SSW 7 | SSW 7 | — | — | S 20 | SSW 9 | SSW 9 | SW 18 | — | WSW 16 | — | NE 6 | SW 19 | S 20 |
— | — | — | — | — | — | 10 | 11 | — | — | 8 | 45 | 42 | 12 | — | 25 | — | 2 | 15 | 7 | |
Wind waves Height (m) Direction Period (s) | SE 7 | SE 6 | SE 6 | SE 7 | SE 7 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 7 | SE 7 | SE 7 | — | SE 8 | — | SE 9 | SE 8 | SE 8 | — |
143 | 85 | 109 | 143 | 124 | 141 | 141 | 136 | 132 | 128 | 168 | 200 | 173 | — | 338 | — | 695 | 542 | 398 | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 135 | 157 | 156 | 127 |
Best forecast wave conditions in Sanur - Bali | ||||||||||||||||||||
Best forecast wave conditions in Indonesia | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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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.










