Wanukaka Surf Forecast

/ Sumba (6 surf breaks) /

Indonesia (168 surf breaks)

Surf Forecasts:

Wanukaka surfForecast / Sumba / Indonesia

12 Day Weather and Surf, issued 7 pm Thursday 18 Sep 2025 WITA

Forecast update in hr min s Forecast update imminent

Wanukaka surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.

Today's Wanukaka sea temperature is 27.1° C
(Which is normal for this time of year)

Best Forecast Surf Conditions for Wanukaka this week:

The surf forecast for Wanukaka over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Sep 19) at 5AM. The primary swell is predicted to be 1.6m and 13s period with a secondary swell of 0.1m and 20s. Another secondary swell of 0.8m and 4s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Wanukaka in the next 12 days are 2.1m 18s and forecast to arrive on Wednesday (Sep 24) 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 0.9m 8s period and expected on Thursday (Sep 25) at 5PM.

Wave Type	Time (WITA) & Date	Wave Height & Period
Next good surf (1 star+)	5AM (Fri 19th Sep)	5ft (1.6m) 13s
Best Surf	11PM (Sat 20th Sep)	5ft (1.6m) 16s
Most Powerful	2PM (Wed 24th Sep)	7ft (2.1m) 18s

Table - best surf conditions forecast for Wanukaka over the next 12 days.

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Short Range Forecast Light rain (total 4mm), mostly falling on Thu night. Warm (max 27°C on Fri morning, min 24°C on Thu night). Wind will be generally light.										Days 3-6 Weather Summary Some drizzle, heaviest during Tue night. Warm (max 28°C on Mon morning, min 24°C on Sun night). Wind will be generally light.
		Friday 19			Saturday 20			Sunday 21			Monday 22			Tuesday 23			Wednesday 24			Thu 25
	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM
Rating (10 max)	2	0	0	3	1	1	4	2	2	4	1	2	3	1	1	4	0	1	4	2	1
Swell Height Map See all maps
Wave Height (m) & direction (?)	SW	SW	SW	SW	SW	SW	SW	SW	SW	SSW	SW	SW	SSW	SSW	SW	SW	SW	SW	SW	SW	SW
Period(s) (?)	13	12	12	13	16	17	15	16	16	15	14	14	14	14	20	19	18	18	16	16	16
Wave Graph (?)
kJ (?)	996	667	414	479	1271	1124	1323	2233	2233	1857	1426	1303	999	833	1245	1935	1789	2528	1671	1314	1571
Wind (km/h)	ESE	SSE	SE	NE	S	SE	E	S	SSE	E	S	SSE	E	S	SE	NNE	SSE	SE	ENE	S	SSE
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross	cross- on	cross- on	glass	cross- on	cross- on	glass	cross- on	cross- on	cross- off	cross- on	cross- on	cross- off	cross- on	cross	off	cross- on	cross	glass	on	cross- on
High Tide / height (m)	9:21PM 1.99	8:51AM 2.33		9:48PM 2.25	9:36AM 2.51		10:12PM 2.48	10:12AM 2.63		10:36PM 2.67	10:44AM 2.70		10:58PM 2.81	11:13AM 2.70		11:21PM 2.90	11:40AM 2.65		11:43PM 2.93	12:07PM 2.55
Low Tide / height (m)	2:55AM 1.16		3:31PM 0.55	3:38AM 0.87		4:00PM 0.43	4:11AM 0.63		4:26PM 0.36	4:41AM 0.42		4:51PM 0.33		5:10AM 0.28	5:14PM 0.34		5:37AM 0.19	5:36PM 0.39		6:04AM 0.17	5:58PM 0.47

		Friday 19			Saturday 20			Sunday 21			Monday 22			Tuesday 23			Wednesday 24			Thu 25
Sunrise	-	5:54	-	-	5:54	-	-	5:52	-	-	5:52	-	-	5:52	-	-	5:50	-	-	5:50	-
Sunset	-	-	5:59	-	-	5:58	-	-	5:58	-	-	5:58	-	-	5:58	-	-	5:58	-	-	5:58

Rain (mm)	2	-	2	-	-	-	-	-	-	-	-	-	-	-	-	1	-	-	-	-	-
Temp. °C	25	27	27	26	27	27	26	27	27	26	28	28	26	28	28	27	28	28	26	27	28
Feels °C (?)	27	28	28	28	28	28	29	29	29	29	29	29	29	28	28	27	27	25	25	27	28

Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)

Recent Eyeball Surf Reports for Sumba

Wind Update Cross-on wind has become light (calm at WaingapuMauHau 110 km from Wanukaka). 1.5m 13s groundswell from the SW with a 0.6m 4s local chop from the SE. 2 swells combining to make bigger set waves.
1 hour 3 minutes ago Wanukaka

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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 12 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.