
Surf Forecasts:
Wanjapu surf forecast from 23 Jul 2026:
- Best quality surf: Friday 24 Jul, 5AM (local time) - 3ft (0.9m), 14s period, SSW swell with cross-offshore winds.
- Most powerful swell: Sunday 26 Jul, 5AM (local time) - 8ft (2.5m), 8s period, SE swell with 848 kJ wave energy.
- Next surfable swell (1★+): Friday 24 Jul, 5AM (local time) - 3ft (0.9m), 14s period with SSW swell.
Best Forecast Surf Conditions for Wanjapu this week:
The surf forecast for Wanjapu over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Jul 24) at 5AM. The primary swell is predicted to be 0.9m and 14s period with a secondary swell of 0.9m and 6s. Another secondary swell of 1.3m and 6s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Wanjapu in the next 16 days are 2.5m 8s and forecast to arrive on Sunday (Jul 26) at 5AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 6s period and expected on Friday (Jul 24) at 2AM.
| Wave Type | Time (WITA) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Fri 24th Jul) | 3ft (0.9m) 14s |
| Best Surf | 5AM (Fri 24th Jul) | 3ft (0.9m) 14s |
| Most Powerful | 5AM (Sun 26th Jul) | 8ft (2.5m) 8s |
Table - best surf conditions forecast for Wanjapu over the next 16 days.
The Lowdown
G'day, it's Rusty here. Let's have a look at what's on the cards for Wanjapu over the next couple of weeks.
Right now, the forecast is looking pretty grim. We've got a solid stretch of junk surf ahead, so don't get your hopes up for the next few days. Thursday the 23rd through to Sunday the 26th of July are all write-offs – the wind is out of the SE at 30 to 35 km/h, blowing cross-shore, and the water's a mess of lumpy cross-chop. The swell is there, but it's ugly, and the scores are a flat zero. Monday the 27th and Tuesday the 28th are not much better, only scraping a 1 out of 10 with marginal conditions and still that cross-breeze.
The first real glimmer of something decent pops up on Wednesday morning the 29th of July. We've got a 4ft SSW swell with a 15-second period, which is a nice long-period groundswell. The wind is a gentle 15 km/h cross-shore, so it's still a bit bumpy, but the energy is building – moderate to strong at 794 (combined energy). It's only a 2 out of 10, but it's a step in the right direction.
Now, the standout. If you can wait, Saturday the 1st of August is the pick of the entire forecast. The morning is glassy – that's right, glassy, with the wind at a mere 5 km/h from the SE. The swell is a solid 6ft from the SW, with a 18-second period – that's a very long-period groundswell packing some serious energy (2016). This is an excellent surf for experienced surfers; it's clean, powerful, and the direction is straight out of the optimum SW. The water temperature is a warm 80°, which is about normal for this time of year. The break is a consistent reef, and it's an advanced spot, so expect a proper session. The only downside is that crowds are sometimes an issue, but on a day like this, it's worth it.
Sunday the 2nd of August holds up reasonably well with a similar 6ft SW swell, but the wind is a light cross-shore, making it less clean than Saturday morning. The week after that, from Monday the 3rd to Wednesday the 5th, we see a big spike in energy, especially on Tuesday the 4th of August, with an 8ft SSW swell and a 18-second period – that's a big, powerful groundswell (3692 combined energy). However, the wind is cross-onshore, so it's not as clean. That kind of size is for experts only, and the cross-onshore breeze will make it tricky.
The second week is a bit of a mixed bag. Thursday the 6th and Friday the 7th of August still have solid 5ft to 7ft SW swells, but the wind stays cross-shore, so it's never going to be as good as that Saturday morning. The energy remains strong, in the 1400 to 1900 range, so there's plenty of power, but the conditions just aren't dialing in perfectly.
Overall, hold out for Saturday the 1st of August. That glassy morning with the 6ft SW groundswell at Wanjapu reef is your best bet for the cleanest, most powerful waves. The rest of the time, you'll be battling the cross-breeze.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Sat afternoon. Warm (max 26°C on Fri afternoon, min 23°C on Thu night). Mainly fresh winds. | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Mon night. Warm (max 26°C on Sun morning, min 23°C on Sun night). Mainly fresh winds. | ||||||||||||||||||||
Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | |||||||||||||||
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 14 | SSW 13 | SSW 13 | SSW 16 | SSW 15 | SSE 8 | SE 8 | SSE 8 | SE 8 | SE 8 | SE 8 | SE 7 | SE 7 | SW 16 | SSW 16 | SW 15 | SSW 15 | SSW 14 | SSW 13 |
Wave Graph | |||||||||||||||||||||
268 | 538 | 469 | 362 | 295 | 318 | 443 | 502 | 808 | 368 | 503 | 672 | 492 | 309 | 355 | 362 | 318 | 509 | 720 | 682 | 599 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-off | cross | cross | cross-off | cross | cross | cross-off | cross | cross | cross-off | cross | cross | cross-off | cross | cross | cross-off | cross | cross | cross-off |
High Tide | 4:35PM1.62m | 4:51AM2.22m | 6:36PM1.51m | 6:14AM2.14m | 8:44PM1.58m | 7:40AM2.18m | 9:42PM1.74m | 8:44AM2.30m | 10:17PM1.91m | 9:32AM2.46m | 10:45PM2.07m | 10:11AM2.61m | 11:11PM2.23m | ||||||||
Low Tide | 10:44AM1.01m | 9:41PM1.16m | 12:23PM1.06m | 10:37PM1.34m | 2:13PM0.95m | 00:50AM1.43m | 3:15PM0.78m | 2:33AM1.35m | 3:54PM0.60m | 3:28AM1.20m | 4:26PM0.44m | 4:08AM1.04m | 4:55PM0.31m | 4:43AM0.89m | |||||||
6:20 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — | — | |
— | 5:59 | — | — | 5:59 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — | |
mm | — | — | — | — | — | — | — | 2 | — | — | — | — | — | — | 1 | — | — | 1 | — | — | — |
Temp °C | 25 | 25 | 25 | 25 | 26 | 25 | 25 | 26 | 25 | 26 | 26 | 25 | 26 | 25 | 25 | 26 | 25 | 25 | 26 | 25 | 25 |
Feels °C | 21 | 22 | 21 | 23 | 24 | 23 | 26 | 24 | 22 | 23 | 23 | 22 | 25 | 24 | 23 | 27 | 25 | 23 | 27 | 25 | 25 |
Swell 1 Height (m) Direction Period (s) | SW 12 | SSW 14 | SSE 6 | SSW 13 | SSW 13 | SSE 7 | SSW 15 | SSW 14 | SSE 8 | SSW 13 | SW 13 | SE 8 | SSE 8 | SW 13 | SSE 7 | SW 16 | SSW 16 | SE 7 | SSW 15 | SSW 14 | SSW 13 |
195 | 538 | 97 | 362 | 295 | 132 | 443 | 437 | 343 | 156 | 183 | 149 | 220 | 142 | 82 | 362 | 318 | 106 | 720 | 682 | 599 | |
Swell 2 Height (m) Direction Period (s) | SSW 14 | SW 18 | SW 14 | SW 18 | SSW 16 | SSW 12 | WSW 18 | WSW 17 | SSW 14 | SW 15 | SW 15 | S 8 | SW 14 | SSW 18 | SE 8 | SW 12 | SW 12 | SW 15 | SW 24 | SSW 23 | SSE 6 |
268 | 49 | 469 | 78 | 181 | 199 | 31 | 29 | 250 | 57 | 55 | 78 | 116 | 120 | 65 | 37 | 93 | 509 | 22 | 53 | 58 | |
Swell 3 Height (m) Direction Period (s) | — | — | SW 18 | WSW 16 | SW 16 | SSW 16 | — | — | SW 16 | — | — | SSW 13 | SSW 12 | — | SW 13 | — | — | — | — | — | SW 21 |
— | — | 12 | 25 | 40 | 318 | — | — | 66 | — | — | 114 | 57 | — | 138 | — | — | — | — | — | 222 | |
Wind waves Height (m) Direction Period (s) | SE 5 | SSE 5 | SE 6 | SSE 6 | SE 5 | SE 6 | SSE 7 | SSE 8 | SE 8 | SSE 8 | SE 8 | SE 8 | SE 8 | SE 7 | SE 7 | SE 7 | SE 7 | SE 7 | SSE 6 | SE 6 | SE 6 |
62 | 75 | 156 | 46 | 62 | 233 | 118 | 502 | 808 | 368 | 503 | 672 | 492 | 309 | 355 | 109 | 233 | 287 | 52 | 128 | 147 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 265 | 118 | 20 | 263 | 118 | 0 | 119 | 119 | 33 | 119 | 119 | 33 | 119 | 119 | 20 | 116 | 116 | 33 | 119 | 118 | 20 |
Best forecast wave conditions in Sumba | |||||||||||||||||||||
Best forecast wave conditions in Indonesia | |||||||||||||||||||||
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Information about the Wanjapu Surf forecast
The above surf forecast table for Wanjapu provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Wanjapu can be found by selecting the local surf guide option on the grey menu. Our Wanjapu 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 (Wanjapu) 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 Wanjapu 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.
Wanjapu is 24 km (15 miles) from the city of Adalara. If you plan a holiday in Sumba, look for hotels and other accommodation in Adalara. Adalara has rooms for a wide range of budgets as well as car hire and transport links.










