
Surf Forecasts:
Wanjapu surf forecast from 6 Jul 2026:
- Best quality surf: Tuesday 7 Jul, 5AM (local time) - 5ft (1.5m), 16s period, SSW swell with cross-offshore winds.
- Most powerful swell: Wednesday 8 Jul, 11PM (local time) - 7ft (2.1m), 16s period, SW swell with 2,040 kJ wave energy.
- Next surfable swell (1★+): Tuesday 7 Jul, 5AM (local time) - 5ft (1.5m), 16s 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 Tuesday (Jul 07) at 5AM. The primary swell is predicted to be 1.5m and 16s period with a secondary swell of 0.7m and 5s. 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 2.1m 16s and forecast to arrive on Wednesday (Jul 08) at 11PM. 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 (Jul 08) at 5AM.
| Wave Type | Time (WITA) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Tue 7th Jul) | 5ft (1.5m) 16s |
| Best Surf | 5AM (Tue 7th Jul) | 5ft (1.5m) 16s |
| Most Powerful | 11PM (Wed 8th Jul) | 7ft (2.1m) 16s |
Table - best surf conditions forecast for Wanjapu over the next 16 days.
Updates in hr min s Forecast update imminent
Alright, Rusty here, for the imperial crew.
The 16-day forecast for Wanjapu is a slow burn, but there’s a gem in there. The early part of the week is a bit of a mess—cross-shore winds and chop. The real standout? That Sunday morning, July 12th. Glassy conditions, clean face, and a solid 4ft of SW groundswell at 14 seconds. That’s a proper reef-swell combo, and with the glassy skin on the water, Wanjapu will be serving up some of the best waves we’ll see this window. The combined swell energy is moderate (522), and it’s a reef break, so those long-period lines will wrap in nicely. It’s an advanced spot, and crowds are sometimes an issue, but on a Sunday morning with that forecast, you’ll want to be an early bird.
The rest of the stretch is a bit of a mixed bag. Wednesday the 8th and Thursday the 9th push up into the 6ft to 7ft range, but the cross-shore winds are cranking—15 to 19 mph—creating lumpy, cross-chop conditions. That’s more kite-surfing territory. The swell period is 15 seconds, so there’s energy (combined energy of all swells directed here hits 2039 on the Wednesday arvo), but the wind is just not playing ball.
Friday the 10th and Saturday the 11th are still cross-shore, but lighter winds on Saturday morning (6 mph) make it slightly more manageable, with 6ft of SW swell at 15 seconds. The energy is still strong (1290), but the cross-shore wind means it’s not going to be pristine.
After that Sunday glassy peak, the swell drops off a bit. Monday the 13th and Tuesday the 14th see the swell dip to 3ft–4ft, with periods dropping to 13–14 seconds. The combined energy weakens (614–1131), and the cross-shore wind returns. It’s not a write-off, but it’s not the highlight.
Midweek, the 15th and 16th, we get a bump back up to 6ft and 5ft, with periods of 15–16 seconds. The winds are light and cross-onshore on the mornings, but the afternoons clean up a bit with cross-shore breezes. The energy is strong (1779 on the 15th morning), but the quality is still marginal.
The second week—from the 18th of July onwards—looks more promising in terms of consistency, but the swell sizes are a bit smaller, mostly 4ft to 5ft, with periods of 13–15 seconds. The wind patterns are a little lighter, and you’ll see a few cleaner windows, like Saturday the 18th afternoon with a clean cross-offshore breeze and 5ft of SW swell. The energy is moderate (1030). It’s not the pumping Sunday the 12th, but it’s a solid option.
The last few days—Monday the 20th to Wednesday the 22nd—fade a bit, with swell dropping to 4ft–5ft and periods settling at 13–16 seconds. The wind stays cross-shore, and the energy drops into the 800–900 range. It’s rideable, but don’t expect any fireworks.
Bottom line: the best bet is that Sunday morning, the 12th of July. Glassy, clean, and with a solid groundswell. If you can’t make that, the 18th afternoon offers a clean alternative. The rest is mostly for the committed, or for the kites on the windy days.
Rusty.
Short Range ForecastMostly dry. Warm (max 27°C on Tue afternoon, min 23°C on Tue night). Winds increasing (light winds from the ESE on Tue night, fresh winds from the ESE by Wed night). | Days 5-7 Weather SummarySome drizzle, heaviest during Fri night. Warm (max 27°C on Fri morning, min 23°C on Fri night). Winds decreasing (fresh winds from the ESE on Thu night, calm by Sun morning). | ||||||||||||||||||||
Tuesday 7 | Wednesday 8 | Thursday 9 | Friday 10 | Saturday 11 | Sunday 12 | Mon 13 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map | |||||||||||||||||||||
Wave Height (m) Direction Period (s) | SSW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 16 | SW 15 | SW 15 | SW 15 | SW 18 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 | SE 7 | SW 13 | SW 14 |
Wave Graph | |||||||||||||||||||||
1112 | 980 | 1005 | 1147 | 1567 | 1936 | 2040 | 1936 | 1619 | 1045 | 1111 | 1852 | 1602 | 1237 | 998 | 588 | 478 | 345 | 215 | 295 | 453 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross | cross-off | cross | cross | cross-off | cross | cross | cross-off | cross | cross | cross-off | cross | cross | cross-off | glassy | cross | cross-off | cross | cross |
High Tide | 2:29AM2.43m | 2:22PM2.22m | 3:06AM2.44m | 3:13PM2.00m | 3:52AM2.44m | 4:25PM1.80m | 4:52AM2.44m | 6:06PM1.67m | 6:06AM2.47m | 7:51PM1.70m | 7:23AM2.57m | 9:08PM1.84m | 8:32AM2.73m | ||||||||
Low Tide | 8:05PM0.53m | 8:35AM0.90m | 8:37PM0.68m | 9:28AM0.92m | 9:14PM0.84m | 10:35AM0.92m | 10:00PM1.02m | 12:01PM0.86m | 11:06PM1.16m | 1:33PM0.70m | 00:38AM1.23m | 2:47PM0.48m | 2:08AM1.17m | 3:44PM0.26m | |||||||
— | 6:20 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — | |
5:54 | — | 5:55 | — | — | 5:55 | — | — | 5:55 | — | — | 5:55 | — | — | 5:57 | — | — | 5:57 | — | — | 5:57 | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — |
Temp °C | 26 | 26 | 27 | 25 | 26 | 26 | 25 | 27 | 26 | 26 | 27 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 |
Feels °C | 26 | 26 | 27 | 24 | 26 | 26 | 22 | 26 | 26 | 23 | 26 | 25 | 25 | 26 | 26 | 27 | 28 | 29 | 28 | 27 | 27 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 16 | SW 15 | SW 15 | SW 15 | SW 18 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 | SSE 7 | SW 13 | SW 14 |
1112 | 980 | 1005 | 1147 | 1567 | 1936 | 2040 | 1936 | 1619 | 1045 | 1111 | 1852 | 1602 | 1237 | 998 | 588 | 478 | 345 | 78 | 295 | 453 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | W 18 | — | — | — | SW 24 | SW 21 | SW 19 | SW 14 | — | — | S 6 | — | SSE 6 | SSE 6 | SSW 12 | SW 13 | SSE 7 | SSW 21 |
— | — | — | 6 | — | — | — | 22 | 117 | 540 | 612 | — | — | 27 | — | 71 | 44 | 29 | 215 | 56 | 297 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | SSW 7 | — | — | — | SE 6 | — | — | — | — | SSW 12 | SSW 16 | SSW 12 |
— | — | — | — | — | — | — | — | — | 4 | — | — | — | 26 | — | — | — | — | 94 | 99 | 14 | |
Wind waves Height (m) Direction Period (s) | SE 6 | SSE 5 | SE 5 | SE 6 | SSE 5 | SE 5 | SE 6 | SE 5 | SE 5 | SE 6 | SSE 6 | SSE 6 | SSE 6 | — | SE 6 | SE 6 | — | SSE 6 | SE 7 | SE 7 | SE 6 |
44 | 17 | 43 | 50 | 19 | 103 | 80 | 51 | 79 | 83 | 56 | 105 | 80 | — | 88 | 196 | — | 47 | 195 | 164 | 141 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 2 | 119 | 118 | 20 | 119 | 118 | 108 | 262 | 116 | 33 | 119 | 118 | 33 | 119 | 119 | 0 | 0 | 118 | 0 | 119 | 262 |
Best forecast wave conditions in Sumba | |||||||||||||||||||||
Best forecast wave conditions in Indonesia | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
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.











