Surf Forecasts:
Wanukaka surf forecast from 20 Aug 2026:
- Best quality surf: Thursday 20 Aug, 11PM (local time) - 7.5ft (2.3m), 16s period, SW swell with cross-offshore winds.
- Most powerful swell: Friday 21 Aug, 2PM (local time) - 7.5ft (2.3m), 17s period, SW swell with 3,052 kJ wave energy.
- Next surfable swell (1★+): Thursday 20 Aug, 11PM (local time) - 7.5ft (2.3m), 16s period with SW swell.
Best Forecast Surf Conditions for Wanukaka this week:
The surf forecast for Wanukaka over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Aug 20) at 11PM. The primary swell is predicted to be 2.3m and 16s period with a secondary swell of 1.1m and 6s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Wanukaka in the next 16 days are 2.3m 17s and forecast to arrive on Friday (Aug 21) at 2PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 6s period and expected on Thursday (Aug 20) at 11PM.
| Wave Type | Time (WITA) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Thu 20th Aug) | 7.5ft (2.3m) 16s |
| Best Surf | 11PM (Thu 20th Aug) | 7.5ft (2.3m) 16s |
| Most Powerful | 2PM (Fri 21st Aug) | 7.5ft (2.3m) 17s |
Table - best surf conditions forecast for Wanukaka over the next 16 days.
Short Range ForecastMostly dry. Warm (max 26°C on Thu afternoon, min 22°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 27°C on Mon afternoon, min 22°C on Sun night). Wind will be generally light. | |||||||||||||||||||
Thu 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | ||||||||||||||
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) | SW 16 | SW 16 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 16 | SW 14 | SW 14 | SW 16 | SW 15 | SW 14 | SSW 14 | SW 13 |
Wave Graph  | ||||||||||||||||||||
 kJ | 3502 | 2516 | 1275 | 2860 | 2694 | 2444 | 2242 | 1812 | 1641 | 1576 | 1358 | 1753 | 1531 | 1220 | 1016 | 1467 | 1289 | 1094 | 1111 | 769 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-off | cross-on | cross-on | glassy | cross-on | cross-on | glassy | cross-on | cross-on | cross-off | cross-on | cross-on | cross | cross-on | cross-on | cross-off | on | cross-on | glassy |
High Tide | 2:38PM1.83m | 2:48AM2.35m | 3:19PM1.58m | 3:31AM2.14m | 5:42PM1.38m | 5:08AM1.98m | 10:23PM1.56m | 7:31AM2.01m | 9:56PM1.76m | 8:44AM2.19m | 10:11PM1.97m | 9:28AM2.40m | 10:30PM2.18m | |||||||
Low Tide | 8:12PM0.94m | 9:39AM0.97m | 8:29PM1.15m | 11:10AM1.13m | 8:28PM1.35m | 2:26PM1.05m | 00:16AM1.56m | 3:17PM0.84m | 2:49AM1.39m | 3:47PM0.64m | 3:32AM1.18m | 4:12PM0.47m | 4:04AM0.96m | |||||||
 |  | | | | |  | | | |  | | | | | | | | | | |
 | — | — | 6:11 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:07 | — | — |
 | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 24 | 26 | 26 | 24 | 26 | 26 | 24 | 26 | 26 | 24 | 26 | 27 | 24 | 26 | 26 | 24 | 25 | 26 | 24 |
Feels °C | 25 | 25 | 25 | 25 | 25 | 26 | 27 | 28 | 26 | 26 | 27 | 26 | 27 | 26 | 26 | 26 | 27 | 27 | 27 | 26 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 16 | SW 14 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 16 | SW 14 | SW 14 | SW 16 | SW 15 | SW 14 | SSW 14 | SW 13 |
| kJ | 3502 | 2516 | 1094 | 2860 | 2694 | 2444 | 2242 | 1812 | 1641 | 1576 | 1358 | 1753 | 1531 | 1220 | 1016 | 1467 | 1289 | 1094 | 1111 | 769 |
Swell 2 Height (m) Direction Period (s) | — | SE 6 | SW 17 | W 19 | SE 6 | SE 5 | S 26 | SE 5 | SW 21 | SSW 20 | SSW 18 | SW 21 | SW 19 | SE 5 | SW 18 | — | SSW 4 | — | — | SW 24 |
| kJ | — | 54 | 1275 | 7 | 50 | 28 | 13 | 41 | 117 | 664 | 835 | 17 | 131 | 28 | 300 | — | 7 | — | — | 22 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | SSW 23 | — | — | SE 5 | — | — | — | — | — | — | — | — | SW 24 |
| kJ | — | — | — | — | — | — | — | 54 | — | — | 40 | — | — | — | — | — | — | — | — | 22 |
Wind waves Height (m) Direction Period (s) | SE 5 | ESE 6 | SE 6 | SE 6 | ESE 6 | — | SE 4 | — | SE 5 | SE 5 | ESE 5 | SE 4 | SE 5 | SE 5 | SE 4 | SE 4 | SE 5 | S 5 | SSE 4 | SSE 4 |
| kJ | 90 | 104 | 43 | 224 | 74 | — | 32 | — | 14 | 71 | 54 | 34 | 74 | 50 | 16 | 21 | 37 | 11 | 13 | 28 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 34 | 0 | 146 | 294 | 0 | 34 | 146 | 0 | 33 | 146 | 0 | 147 | 280 | 75 | 147 | 146 | 0 | 144 | 146 | 0 |
Best forecast wave conditions in Sumba | ||||||||||||||||||||
Best forecast wave conditions in Indonesia | ||||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Wanukaka surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Wanukaka Surf forecast
The above surf forecast table for Wanukaka provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Wanukaka can be found by selecting the local surf guide option on the grey menu. Our Wanukaka 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 (Wanukaka) 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 Wanukaka 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.
Are you planning a holiday in Sumba? If you are looking for accommodation near Wanukaka, camping, hotels and holiday cottages in Sumba, consider staying in Adalara which is 34 km (21 miles) away.
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