Surf Forecasts:
Mawi surf forecast from 16 Aug 2026:
- Best quality surf: Wednesday 19 Aug, 5AM (local time) - 8ft (2.4m), 19s period, SW swell with offshore winds.
- Most powerful swell: Wednesday 19 Aug, 8PM (local time) - 10ft (3.0m), 17s period, SW swell with 4,856 kJ wave energy.
- Next surfable swell (1★+): Sunday 16 Aug, 11AM (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 11AM. The primary swell is predicted to be 2.2m and 16s period. 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 17s 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 1.6m 6s period and expected on Friday (Aug 21) at 5PM.
| Wave Type | Time (WITA) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11AM (Sun 16th Aug) | 7ft (2.2m) 16s |
| Best Surf | 5AM (Wed 19th Aug) | 8ft (2.4m) 19s |
| Most Powerful | 8PM (Wed 19th Aug) | 10ft (3.0m) 17s |
Table - best surf conditions forecast for Mawi over the next 16 days.
The Lowdown
Alright, Rusty here again, but in feet this time. Let’s talk Mawi.
This reef break is looking pretty consistent from Sunday the 16th through the end of the month. No real gaps in the action.
Sunday morning kicks off with 7ft SSW groundswell, and it’s got some serious energy – the combined number is 2472 (strong). Water temp is 80°, about normal for this time of year. Winds are cross-off from the southeast, so it’s clean. Monday brings 5ft to 5ft, still clean and rideable. Tuesday the 18th drops a bit to 4ft in the morning, but the period stays at 16 seconds, keeping the shape nice.
The big one is Wednesday the 19th. We’ve got 8ft SW swell, with a period of 18 seconds – that’s a long-period groundswell, and on a reef, that’s going to line up beautifully. The combined energy hits 4009 in the morning and 4517 in the afternoon (very strong). Winds stay cross-off from the southeast at 15 km/h, so it’s clean. This is the standout window, but at 8ft, it’s for experts only.
Thursday the 20th stays big – 10ft in the morning, dropping to 8ft in the afternoon, still clean. Energy stays in the 4000s and 3000s. After that, the swell settles into the 6ft to 8ft range through the weekend and into the next week. Winds pick up a bit, hitting 25 to 30 km/h around the 21st and 22nd, but still cross-off.
Around the 26th, it drops off – 4ft to 5ft, energy under 1000. But it bounces back on the 27th with a 6ft to 7ft SW swell and a 19-second period, energy back up near 3000. That’s a promising window, but it’s further out, so a bit less certain.
Crowds at Mawi can show up sometimes, so don’t expect it to be empty, but it’s not a madhouse. Early mornings are your best bet for less company. Beginners, stick to the smaller days like the 18th or the 29th when the swell is under 5ft. Everything bigger is for the experienced crew.
Keep your eyes on Wednesday the 19th and that late-month swell around the 27th. That’s where the magic is. Rusty out.
Short Range ForecastMostly dry. Warm (max 27°C on Sun afternoon, min 24°C on Sun morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 27°C on Wed afternoon, min 24°C on Wed morning). Wind will be generally light. | ||||||||||||||||||||
Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | |||||||||||||||
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 16 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SW 21 | SW 16 | SW 16 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 |
Wave Graph | |||||||||||||||||||||
2472 | 1908 | 1319 | 1057 | 921 | 599 | 897 | 1449 | 1672 | 3971 | 4444 | 4690 | 4027 | 3543 | 2692 | 1836 | 3621 | 3402 | 2697 | 2472 | 1937 | |
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 | 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 | 12:09PM2.66m | 00:31AM2.76m | 12:42PM2.48m | 1:01AM2.72m | 1:14PM2.25m | 1:29AM2.61m | 1:44PM2.01m | 1:57AM2.44m | 2:13PM1.76m | 2:28AM2.25m | 2:47PM1.52m | 3:07AM2.05m | 4:01PM1.30m | 4:26AM1.87m | |||||||
Low Tide | 6:17PM0.17m | 6:42AM0.30m | 6:44PM0.30m | 7:18AM0.39m | 7:09PM0.47m | 7:53AM0.54m | 7:32PM0.65m | 8:31AM0.72m | 7:53PM0.84m | 9:18AM0.91m | 8:09PM1.03m | 10:43AM1.08m | 8:03PM1.22m | ||||||||
6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | |
— | 6:14 | — | — | 6:14 | — | — | 6:14 | — | — | 6:14 | — | — | 6:14 | — | — | 6:14 | — | — | 6:14 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 27 | 25 | 26 | 27 | 25 | 26 | 27 | 25 | 26 | 27 | 25 | 26 | 27 | 25 | 26 | 26 | 25 | 26 | 26 | 25 |
Feels °C | 27 | 28 | 26 | 27 | 28 | 27 | 28 | 28 | 27 | 28 | 27 | 27 | 26 | 28 | 26 | 24 | 24 | 24 | 24 | 25 | 25 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 16 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 16 | SW 16 | SW 16 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 14 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 |
2472 | 1908 | 1319 | 1057 | 921 | 599 | 897 | 1449 | 1672 | 3971 | 4444 | 4690 | 4027 | 3543 | 2692 | 1220 | 3621 | 3402 | 2697 | 2472 | 1937 | |
Swell 2 Height (m) Direction Period (s) | — | — | SE 5 | SW 25 | SSW 20 | SSW 18 | SW 13 | SW 20 | SW 19 | SE 6 | — | — | SE 7 | — | — | SSW 18 | — | — | SE 6 | — | — |
— | — | 16 | 25 | 75 | 408 | 406 | 1145 | 1088 | 54 | — | — | 79 | — | — | 1836 | — | — | 58 | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | S 26 | SW 25 | SW 24 | SW 24 | SW 21 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | 13 | 25 | 89 | 142 | 890 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | SE 5 | SE 5 | ESE 5 | SE 5 | SE 6 | SE 5 | SE 5 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | — | SE 7 | SE 6 | SE 7 | SE 6 | SE 6 | — | SE 6 | SE 5 |
25 | 25 | 33 | 27 | 44 | 22 | 25 | 54 | 36 | 91 | 66 | 71 | — | 116 | 162 | 174 | 171 | 90 | — | 58 | 43 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 32 | 0 | 32 | 0 | 34 | 32 | 0 | 34 | 0 | 34 | 34 | 0 | 34 | 34 | 0 | 34 | 34 | 32 | 34 | 34 | 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.











