Surf Forecasts:
Mawi surf forecast from 15 Aug 2026:
- Best quality surf: Wednesday 19 Aug, 5AM (local time) - 8ft (2.4m), 19s period, SW swell with offshore winds.
- Most powerful swell: Thursday 20 Aug, 2AM (local time) - 10ft (3.0m), 17s period, SW swell with 5,160 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 17s and forecast to arrive on Thursday (Aug 20) at 2AM. 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+) | 5AM (Sun 16th Aug) | 7ft (2.2m) 16s |
| Best Surf | 5AM (Wed 19th Aug) | 8ft (2.4m) 19s |
| Most Powerful | 2AM (Thu 20th Aug) | 10ft (3.0m) 17s |
Table - best surf conditions forecast for Mawi over the next 16 days.
The Lowdown
Alright, Rusty here again. Let’s break it down for Mawi in feet and mph.
The water’s sitting at 27°, which is right on the money for this time of year – feels normal. Starting Saturday the 15th, we’ve got a solid 8 ft swell out of the SSW with a very long 17 second period – 3031 units of energy (moderate to strong). Wind is cross-off from the ESE at 16 mph, clean but breezy. By Sunday morning the 16th, it’s pushing 7 ft with 16 second period, still cross-off and clean. This is a big, powerful reef break for advanced surfers only. Crowds are possible here.
The real standout window is Wednesday the 19th afternoon. Swell hits 8 ft from the SW, period at 18 seconds, and the wind eases to a gentle 9 mph cross-off. Energy jumps to 4249 (strong). That’s the best combination of size, power, and clean conditions – if you’re experienced, that’s your session.
Thursday the 20th morning goes to 10 ft from the SW at 16 seconds – expert only – with wind at 16 mph. Still cross-off, so clean, but serious size. The rest of the week holds solid 5 to 8 ft swells with energy in the 1000s and 2000s and moderate cross-off wind. No glass, but rideable.
Into the second week, Monday the 24th and Tuesday the 25th drop to 4 ft to 5 ft, energy under 1500 – weaker. Wind picks up by Wednesday the 26th to 19 mph, and energy falls to 861 (weak) – a real lull. Thursday the 27th afternoon shows a 7 ft SW swell at 18 seconds with 3140 energy, but wind is 16 mph. Friday the 28th morning offers 8 ft SSW at 3196 energy, still breezy.
The end of the outlook, Sunday the 30th, has a spike: 8 ft from the SW, 19 second period, 5000 energy (strong) at 16 mph wind. That’s 16 days out, so hope but don’t book your flight yet. For now, Wednesday the 19th afternoon is the clear winner.
Plenty of consistent SSW/SW groundswell the whole run, cross-off winds, and crowds possible at this reef. No real flat gaps – there’s always something.
Rusty.
Short Range ForecastMostly dry. Warm (max 27°C on Mon afternoon, min 24°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 27°C on Tue afternoon, min 24°C on Tue night). Wind will be generally light. | |||||||||||||||||||
Sat 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | ||||||||||||||
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 16 | 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 | SW 15 | SSW 17 | SSW 16 |
Wave Graph | ||||||||||||||||||||
3348 | 2620 | 2472 | 1908 | 1319 | 1057 | 921 | 599 | 897 | 1449 | 1672 | 3971 | 4444 | 5160 | 4444 | 3543 | 2692 | 2204 | 2929 | 3178 | |
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 | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 00:01AM2.73m | 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 | |||||||
Low Tide | 5:48PM0.08m | 6:06AM0.27m | 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 | |||||||
— | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:22 | — | — | 6:22 | — | — | |
6:14 | — | — | 6:14 | — | — | 6:14 | — | — | 6:14 | — | — | 6:14 | — | — | 6:14 | — | — | 6:14 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 25 | 26 | 26 | 25 | 26 | 27 | 25 | 26 | 27 | 25 | 26 | 27 | 25 | 26 | 26 | 25 | 26 | 27 | 25 |
Feels °C | 27 | 26 | 27 | 26 | 26 | 27 | 28 | 26 | 27 | 28 | 27 | 27 | 27 | 27 | 26 | 26 | 25 | 24 | 26 | 24 |
Swell 1 Height (m) Direction Period (s) | SSW 17 | SSW 16 | 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 15 | SSW 17 | SSW 16 |
3348 | 2620 | 2472 | 1908 | 1319 | 1057 | 921 | 599 | 897 | 1449 | 1672 | 3971 | 4444 | 5160 | 4444 | 3543 | 2692 | 2204 | 2929 | 3178 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | S 26 | SE 6 | SSW 20 | SSW 18 | SW 13 | SW 20 | SW 19 | SE 6 | — | — | — | — | — | SSW 18 | — | — |
— | — | — | — | 13 | 36 | 75 | 408 | 406 | 1145 | 1088 | 32 | — | — | — | — | — | 975 | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | SW 25 | SW 24 | SW 24 | SW 21 | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | 25 | 89 | 142 | 890 | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | SE 5 | SE 5 | SE 5 | SE 5 | SE 5 | SE 6 | SE 6 | SE 5 | SE 5 | SE 5 | SE 5 | — | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 7 | SE 6 | SE 6 |
25 | 19 | 30 | 27 | 25 | 59 | 44 | 21 | 25 | 45 | 35 | — | 62 | 46 | 54 | 94 | 109 | 149 | 172 | 99 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 34 | 32 | 34 | 34 | 32 | 0 | 34 | 32 | 34 | 34 | 0 | 34 | 0 | 32 | 34 | 34 | 32 | 34 | 34 | 47 |
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.











