Surf Forecasts:
Cobblestones surf forecast from 4 Sep 2026:
- Best quality surf: Saturday 5 Sep, 8PM (local time) - 7ft (2.1m), 14s period, SSW swell with cross-shore winds.
- Most powerful swell: Wednesday 9 Sep, 11AM (local time) - 8ft (2.5m), 16s period, SSW swell with 3,504 kJ wave energy.
- Next surfable swell (1★+): Saturday 5 Sep, 8AM (local time) - 5ft (1.6m), 14s period with SW swell.
Best Forecast Surf Conditions for Cobblestones this week:
The surf forecast for Cobblestones over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Sep 05) at 8AM. The primary swell is predicted to be 1.6m and 14s period with a secondary swell of 0.7m and 18s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Cobblestones in the next 16 days are 2.5m 16s and forecast to arrive on Wednesday (Sep 09) at 11AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Sunday (Sep 06) at 5AM.
| Wave Type | Time (WITA) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Sat 5th Sep) | 5ft (1.6m) 14s |
| Best Surf | 8PM (Sat 5th Sep) | 7ft (2.1m) 14s |
| Most Powerful | 11AM (Wed 9th Sep) | 8ft (2.5m) 16s |
Table - best surf conditions forecast for Cobblestones over the next 16 days.
Short Range ForecastMostly dry. Warm (max 27°C on Sat morning, min 24°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Tue night. Warm (max 27°C on Tue morning, min 24°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | |||||||||||||||
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 14 | SSW 16 | SSW 14 | SSW 14 | SSW 17 | SSW 16 | SSW 14 | SSW 14 | SSW 14 | SSW 20 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 16 | SSW 16 | SW 16 | SW 16 | SW 15 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1240 | 1677 | 1724 | 1538 | 2551 | 2550 | 1748 | 1724 | 1204 | 1151 | 1689 | 2204 | 3504 | 2864 | 2629 | 1693 | 2599 | 2599 | 2146 | 2066 | 1694 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross-off | cross-off | cross | cross-off |
High Tide | 2:59PM1.72m | 3:12AM2.42m | 5:27PM1.51m | 5:11AM2.23m | 8:28PM1.73m | 7:29AM2.32m | 9:10PM2.05m | 8:42AM2.54m | 9:42PM2.36m | 9:32AM2.75m | 10:11PM2.65m | 10:13AM2.89m | 10:40PM2.88m | ||||||||
Low Tide | 9:16AM0.83m | 8:17PM1.13m | 10:56AM1.02m | 9:15PM1.41m | 1:32PM0.95m | 00:58AM1.48m | 2:44PM0.71m | 2:37AM1.19m | 3:25PM0.50m | 3:28AM0.86m | 3:59PM0.34m | 4:09AM0.57m | 4:30PM0.25m | 4:45AM0.34m | |||||||
 | |  | |  |  | | | | | |  |  | | | | | | | | | |
 | 6:05 | — | — | 6:05 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:01 | — | — |
 | — | 6:04 | — | — | 6:04 | — | — | 6:04 | — | — | 6:04 | — | — | 6:02 | — | — | 6:02 | — | — | 6:02 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — |
Temp °C | 27 | 27 | 24 | 27 | 27 | 25 | 27 | 27 | 25 | 27 | 27 | 25 | 27 | 27 | 25 | 27 | 27 | 25 | 27 | 28 | 25 |
Feels °C | 28 | 27 | 26 | 28 | 28 | 27 | 28 | 28 | 27 | 28 | 28 | 27 | 29 | 28 | 27 | 29 | 28 | 28 | 29 | 30 | 28 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 16 | SSW 14 | SSW 14 | SSW 17 | SSW 16 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 16 | SSW 16 | SW 16 | SW 16 | SW 15 |
| kJ | 1240 | 1677 | 1724 | 1538 | 2551 | 2550 | 1748 | 1724 | 1204 | 1151 | 1245 | 2204 | 3504 | 2864 | 2629 | 1693 | 2599 | 2599 | 2146 | 2066 | 1694 |
Swell 2 Height (m) Direction Period (s) | SE 4 | S 5 | — | SSW 18 | SSW 13 | — | SW 24 | SSW 22 | SSW 21 | SSW 20 | SSW 18 | SSW 13 | — | — | — | SW 18 | — | S 28 | SSW 26 | SW 25 | SW 24 |
| kJ | 9 | 8 | — | 218 | 659 | — | 22 | 46 | 288 | 1024 | 1689 | 1049 | — | — | — | 481 | — | 15 | 66 | 96 | 197 |
Swell 3 Height (m) Direction Period (s) | — | — | — | S 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SSW 26 | — | — |
| kJ | — | — | — | 10 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 66 | — | — |
Wind waves Height (m) Direction Period (s) | — | SSE 4 | — | SSE 4 | S 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | E 5 | ESE 4 | E 5 |
| kJ | — | 12 | — | 19 | 19 | — | — | — | — | — | — | — | — | — | — | — | — | — | 11 | 11 | 22 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 0 |
Best forecast wave conditions in Sumbawa | |||||||||||||||||||||
Best forecast wave conditions in Indonesia | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Cobblestones surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Cobblestones Surf forecast
The above surf forecast table for Cobblestones provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Cobblestones can be found by selecting the local surf guide option on the grey menu. Our Cobblestones 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 (Cobblestones) 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 Cobblestones 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.
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