Surf Forecasts:
Mawi surf forecast from 25 Aug 2026:
- Best quality surf: Friday 28 Aug, 2AM (local time) - 8ft (2.5m), 18s period, SSW swell with cross-offshore winds.
- Most powerful swell: Friday 28 Aug, 8AM (local time) - 10ft (3.0m), 17s period, SSW swell with 4,646 kJ wave energy.
- Next surfable swell (1★+): Wednesday 26 Aug, 5AM (local time) - 5.5ft (1.7m), 14s 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 Wednesday (Aug 26) at 5AM. The primary swell is predicted to be 1.7m and 14s period. The wind is predicted to be 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 Friday (Aug 28) at 8AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 6s period and expected on Tuesday (Sep 01) at 8PM.
| Wave Type | Time (WITA) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Wed 26th Aug) | 5.5ft (1.7m) 14s |
| Best Surf | 2AM (Fri 28th Aug) | 8ft (2.5m) 18s |
| Most Powerful | 8AM (Fri 28th Aug) | 10ft (3.0m) 17s |
Table - best surf conditions forecast for Mawi over the next 16 days.
The Lowdown
Alright folks, Rusty here with a look at what's coming our way. We've got a solid run of groundswell on the cards, but it's a bit of a mixed bag with the wind. The standout window is shaping up to be around the end of this month, so let's get into it.
The main event is at Mawi (reef), which is the only spot we've got data for. This reef is exposed to the SW, and that's exactly where the swell is coming from, so it's set up well. The water temp is pretty standard for this time of year, nothing unusual to report.
The first few days are a bit of a tease. Wednesday the 26th and Thursday the 27th offer clean, cross-off winds, but the swell is modest and the forecast is a bit marginal. We're looking at 6 ft from the SSW on Wednesday easing to 3 ft by Thursday afternoon, with a very long period reaching 20 seconds. That long period is a classic groundswell, packing plenty of energy—the combined energy is reading 1911 on Thursday arvo—but it might be hard to link up at a beach break. For a reef like Mawi, though, it could be super fun for the experienced crew.
The real action kicks off on Friday the 28th. The swell jumps up to 10 ft from the SW in the morning, with a period of 16 seconds. That's a big, powerful groundswell with combined energy hitting 4190. This is not for the faint-hearted; definitely expert territory. The wind is cross-off from the SE, keeping it clean, but that size is serious. The swell drops a touch through Saturday morning to 7 ft, but conditions are still clean and the energy is moderate at 1885. This is the best window for the experienced surfer, with the biggest, cleanest waves.
From Sunday the 30th onwards, the swell drops back to around 5 ft to 6 ft, but the wind stays a persistent cross-off from the SE. It's consistent, clean, and surfable, but the energy levels drop back to the 1000-2000 range. The first week of September sees a slow build again, with swell pushing back up to 7 ft and 7 ft by the 5th and 6th, but the wind remains a moderate breeze, so it's a bit more challenging.
Looking further out, the second week of September gets interesting again. The 9th and 10th show a significant pulse of SW groundswell, with the 9th hitting 6 ft and the 10th pushing 8 ft, both with 17-second periods. The combined energy on the 10th is a strong 3443. This is promising, but it's a long-range call, so keep an eye on it. The wind is still cross-off, so if it holds, this could be another excellent window.
The takeaway: Your best bet is the Friday 28th to Saturday 29th of August for the biggest, most powerful groundswell, but it's for experts only. For the rest of us, the consistent clean conditions and moderate swell from Thursday 27th through the following week, and again around the 9th-10th of September, offer plenty of fun waves. Mawi is a reef, so it handles the long period groundswell well. Just be aware that crowds are sometimes a factor there.
Rusty.
Short Range ForecastMostly dry. Warm (max 27°C on Wed afternoon, min 24°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 27°C on Sun morning, min 24°C on Sat night). Mainly fresh winds. | ||||||||||||||||||||
Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | |||||||||||||||
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 14 | SW 16 | SW 16 | SW 20 | SSW 18 | SSW 16 | SSW 16 | SW 16 | SW 15 | SW 14 | SSW 13 | SW 13 | SW 13 | SW 19 | SW 18 | SW 18 | SW 18 | SW 18 | SW 17 | SW 17 |
Wave Graph | |||||||||||||||||||||
1080 | 1034 | 326 | 711 | 761 | 4177 | 4276 | 3785 | 2917 | 1885 | 1109 | 680 | 721 | 700 | 846 | 1215 | 1777 | 2457 | 2782 | 2442 | 2561 | |
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 | off |
High Tide | 9:13AM2.24m | 10:12PM2.03m | 9:47AM2.42m | 10:32PM2.23m | 10:18AM2.55m | 10:53PM2.42m | 10:48AM2.63m | 11:15PM2.58m | 11:17AM2.65m | 11:38PM2.71m | 11:47AM2.60m | 00:02AM2.78m | 12:17PM2.49m | 00:28AM2.80m | |||||||
Low Tide | 3:54PM0.48m | 3:45AM0.91m | 4:18PM0.34m | 4:15AM0.71m | 4:41PM0.25m | 4:45AM0.53m | 5:04PM0.20m | 5:14AM0.38m | 5:27PM0.19m | 5:45AM0.27m | 5:50PM0.23m | 6:16AM0.22m | 6:14PM0.31m | ||||||||
6:20 | — | — | 6:20 | — | — | 6:18 | — | — | 6:18 | — | — | 6:18 | — | — | 6:18 | — | — | 6:16 | — | — | |
— | 6:14 | — | — | 6:14 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 27 | 25 | 26 | 26 | 25 | 26 | 26 | 25 | 26 | 26 | 25 | 27 | 27 | 25 | 27 | 27 | 25 | 27 | 27 | 25 |
Feels °C | 24 | 27 | 26 | 27 | 26 | 26 | 26 | 25 | 27 | 27 | 26 | 26 | 28 | 26 | 25 | 26 | 26 | 24 | 26 | 25 | 24 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 14 | SW 12 | SSW 12 | SSW 12 | SSW 18 | SSW 16 | SSW 16 | SW 16 | SW 15 | SW 14 | SSW 13 | SW 13 | SW 13 | SSW 12 | SW 18 | SW 18 | SW 18 | SW 18 | SW 17 | SW 17 |
1080 | 1034 | 297 | 412 | 493 | 4177 | 4276 | 3785 | 2917 | 1885 | 1109 | 680 | 721 | 700 | 504 | 1215 | 1777 | 2457 | 2782 | 2442 | 2561 | |
Swell 2 Height (m) Direction Period (s) | — | SW 20 | SSW 13 | SW 16 | SW 15 | — | SE 6 | SE 5 | — | SE 6 | SSW 15 | SW 15 | SW 21 | SW 21 | SW 19 | SW 12 | SSW 11 | SSW 11 | W 14 | — | — |
— | 15 | 229 | 711 | 657 | — | 31 | 23 | — | 8 | 405 | 301 | 224 | 361 | 846 | 330 | 193 | 135 | 4 | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | SW 16 | SSW 22 | SW 20 | — | — | — | — | — | SW 22 | SSW 24 | SSW 6 | — | — | — | SW 12 | — | — | — | — |
— | — | 326 | 311 | 761 | — | — | — | — | — | 18 | 54 | 7 | — | — | — | 23 | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | SE 5 | SE 5 | SSE 5 | — | SE 5 | — | — | — | SE 6 | — | SE 6 | SE 6 | SE 5 | SE 5 | SE 5 | SE 5 | SE 5 | SE 5 | SE 6 | SE 6 | SE 6 |
38 | 43 | 26 | — | 13 | — | — | — | 15 | — | 23 | 20 | 27 | 34 | 21 | 27 | 65 | 47 | 81 | 111 | 79 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 34 | 34 | 32 | 32 | 64 | 0 | 32 | 64 | 0 | 0 | 64 | 32 | 34 | 34 | 32 | 34 | 34 | 32 | 34 | 34 | 0 |
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.











