Surf Forecasts:
Mawi surf forecast from 12 Aug 2026:
- Best quality surf: Tuesday 18 Aug, 5PM (local time) - 6ft (1.9m), 16s period, SW swell with cross-offshore winds.
- Most powerful swell: Wednesday 19 Aug, 8PM (local time) - 10ft (3.0m), 18s period, SW swell with 4,642 kJ wave energy.
- Next surfable swell (1★+): Sunday 16 Aug, 5AM (local time) - 7ft (2.2m), 16s period with SSW swell.
Best Forecast Surf Conditions for Mawi this week:
The surf forecast for Mawi over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Aug 16) at 5AM. The primary swell is predicted to be 2.2m and 16s period with a secondary swell of 0.6m and 5s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Mawi in the next 16 days are 3.0m 18s and forecast to arrive on Wednesday (Aug 19) at 8PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 5s period and expected on Wednesday (Aug 12) at 8PM.
| Wave Type | Time (WITA) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Sun 16th Aug) | 7ft (2.2m) 16s |
| Best Surf | 5PM (Tue 18th Aug) | 6ft (1.9m) 16s |
| Most Powerful | 8PM (Wed 19th Aug) | 10ft (3.0m) 18s |
Table - best surf conditions forecast for Mawi over the next 16 days.
The Lowdown
Alright, crew, Rusty here breaking down the next couple of weeks for us.
We've got a solid run of swell on the way, no doubt. It all starts with a proper grounding of SSW energy hitting the reefs. That's a long-period swell, over 15 seconds, so it's got some serious punch. For a spot like Mawi, that's going to focus into some clean, powerful lines. Water temp is a nice 80°, which is right about normal for this time of year.
From Wednesday the 12th, the swell builds. We're talking 7ft on Wednesday afternoon, but by Thursday the 13th, it's cranking up to 10ft. That's big boy territory for Mawi. You need to know your limits. The wind is a steady cross-off from the SE, so the faces will be clean, but getting out is going to be a mission. The reward is some serious bombs.
The standout window is Monday the 17th and Tuesday the 18th. The swell settles to a more manageable 5ft to 6ft, holding that quality 16-second period from the SW. The wind eases up to a gentle breeze, and the data says "excellent for experienced surfers." Tuesday afternoon is the real gem: a 6ft SW swell with light wind. This is your session. You might get a bit of company on the takeoff, but it won't be a circus.
Into the second week, the pattern holds but gets windier. Wednesday the 19th is another big one with an 8ft SW swell and an 18-second period. All power, all depth. Again, expert zone.
From Thursday the 20th, the wind starts blowing. By Friday the 21st, it's a fresh 19 mph cross-off. Surfable, but bumpy. The energy drops off a bit after that. Monday the 24th is the only real reprieve, with the wind dropping to just 6 mph for the afternoon, making that 7ft SSW swell look clean and inviting.
After the 24th, the wind gets nasty again, hitting 22 mph by the 26th. At that point, with that swell and that wind over an exposed reef, you might as well rig the kite.
So, don't overthink it. The first week is where it's at. Tuesday afternoon the 18th is your best bet. Get it while it's good. That near-term call is solid; the stuff for the 24th is a bit of a gamble this far out, but worth keeping an eye on.
Rusty, out.
Short Range ForecastMostly dry. Warm (max 26°C on Wed afternoon, min 24°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 27°C on Sat afternoon, min 24°C on Sat night). Wind will be generally light. | |||||||||||||||||||
Wed 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | ||||||||||||||
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 | S 14 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SW 16 | SW 16 | SW 16 |
Wave Graph  | ||||||||||||||||||||
 kJ | 2109 | 1261 | 3642 | 4103 | 3415 | 2491 | 1801 | 1622 | 3028 | 2993 | 2620 | 2271 | 1908 | 1319 | 1057 | 921 | 680 | 1318 | 1694 | 2228 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 10:26PM2.19m | 10:13AM2.76m | 10:59PM2.42m | 10:55AM2.81m | 11:31PM2.61m | 11:33AM2.78m | 00:01AM2.73m | 12:09PM2.66m | 00:31AM2.76m | 12:42PM2.48m | 1:01AM2.72m | 1:14PM2.25m | 1:29AM2.61m | |||||||
Low Tide | 4:10PM0.19m | 4:02AM0.68m | 4:45PM0.09m | 4:46AM0.47m | 5:18PM0.05m | 5:27AM0.33m | 5:48PM0.08m | 6:06AM0.27m | 6:17PM0.17m | 6:42AM0.30m | 6:44PM0.30m | 7:18AM0.39m | 7:09PM0.47m | |||||||
 |  |  | | | | | | | |  | | | | | | | | | | |
 | — | — | 6:26 | — | — | 6:26 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — |
 | 6:14 | — | — | 6:14 | — | — | 6:14 | — | — | 6:14 | — | — | 6:14 | — | — | 6:14 | — | — | 6:14 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 25 | 26 | 26 | 24 | 26 | 26 | 25 | 26 | 27 | 25 | 26 | 27 | 25 | 26 | 27 | 25 | 26 | 27 | 25 |
Feels °C | 25 | 25 | 25 | 25 | 24 | 26 | 26 | 26 | 26 | 27 | 27 | 27 | 28 | 27 | 27 | 27 | 27 | 27 | 28 | 28 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | S 14 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SW 16 | SW 16 | SW 16 |
| kJ | 2109 | 1261 | 3642 | 4103 | 3415 | 2491 | 1801 | 1622 | 3028 | 2993 | 2620 | 2271 | 1908 | 1319 | 1057 | 921 | 680 | 1318 | 1694 | 2228 |
Swell 2 Height (m) Direction Period (s) | — | SSW 18 | — | S 26 | SSW 24 | SSW 21 | SSW 21 | SSW 19 | — | — | — | — | — | S 26 | SW 25 | SW 20 | SSW 18 | SSW 13 | SSW 20 | SW 20 |
| kJ | — | 1178 | — | 13 | 54 | 180 | 393 | 1033 | — | — | — | — | — | 13 | 24 | 98 | 559 | 341 | 1281 | 881 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 25 | SW 24 | SE 6 | SW 21 | SE 6 | SE 6 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 24 | 88 | 20 | 890 | 31 | 16 |
Wind waves Height (m) Direction Period (s) | SE 5 | ESE 5 | SE 5 | — | SSE 9 | SSE 8 | SSE 5 | SE 5 | SE 5 | SE 5 | SE 5 | — | SE 5 | SE 5 | SE 5 | SE 6 | — | — | — | ESE 6 |
| kJ | 64 | 39 | 69 | — | 55 | 95 | 37 | 22 | 32 | 32 | 21 | — | 16 | 16 | 16 | 40 | — | — | — | 30 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 32 | 32 | 34 | 0 | 33 | 0 | 32 | 0 | 0 | 32 |
Best forecast wave conditions in South Coast of Lombok | ||||||||||||||||||||
Best forecast wave conditions in Indonesia | ||||||||||||||||||||
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Information about the Mawi Surf forecast
The above surf forecast table for Mawi provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Mawi can be found by selecting the local surf guide option on the grey menu. Our Mawi 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 (Mawi) 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 Mawi 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.
Mawi is 25 km (16 miles) from the city of Praya. If you plan a holiday in South Coast of Lombok, look for hotels and other accommodation in Praya. Praya has rooms for a wide range of budgets as well as car hire and transport links.
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