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Surf Forecasts:

Wanukaka surfForecast / Sumba / Indonesia

information circle12 Day Weather and Surf, issued 1 pm Sunday 18 Jan 2026 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
29.6° 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 Saturday (Jan 24) at 11PM. The primary swell is predicted to be 1.1m and 12s period with a secondary swell of 0.4m and 7s. Another secondary swell of 1.6m and 7s 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 2.0m 17s and forecast to arrive on Thursday (Jan 22) at 5AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 7s period and expected on Thursday (Jan 22) at 11AM.

Wave TypeTime (WITA) & Date Wave Height & Period
Next good surf (1 star+)11PM (Sat 24th Jan)3.5ft (1.1m) 12s
Best Surf11PM (Sat 24th Jan)3.5ft (1.1m) 12s
Most Powerful 5AM (Thu 22nd Jan)6.5ft (2.0m) 17s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Heavy rain (total 73mm), heaviest during Tue afternoon. Warm (max 29°C on Sun afternoon, min 25°C on Wed morning). Mainly fresh winds.

Days 3-6 Weather Summary Heavy rain (total 153mm), heaviest during Wed night. Warm (max 28°C on Sat morning, min 25°C on Wed afternoon). Winds increasing (light winds from the W on Wed afternoon, strong winds from the WNW by Thu night).

Sun
18
Monday
19
Tuesday
20
Wednesday
21
Thursday
22
Friday
23
Saturday
24
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
1
1
0
0
0
0
0
0
0
2
2
0
1
1
1
2
2
1
2
1
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.3
SW
1.4
SW
1.3
SW
1.5
SW
1.6
SW
1.6
SW
1.5
SW
1.4
SW
1
SSW
1.4
SSW
1.7
SSW
2.1
SSW
1.9
SSW
1.5
SSW
1.5
SW
1.2
SW
1.4
SW
1.4
SW
1.3
SW
1.1
SW
1.9
WSW
Period(s) (?)15141415151414142019171616141413141413128
Wave
Graph
(?)Metric surfscale
Energy kJ (?)76382165895311639208657657901366181721781721947902509731765560330395
Wind
(km/h)
15
W
20
W
25
W
20
WSW
25
W
25
WSW
25
WSW
30
W
30
W
15
W
20
WNW
35
WNW
30
WNW
30
W
25
WNW
20
NW
20
NW
20
WNW
15
WNW
10
WNW
15
W
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscrosscross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		crosscrosscrosscrosscrosscross-
off		cross-
off		crosscrosscrosscross-
on
High Tide
/ height (m)
10:28PM
2.67
11:32AM
2.23
11:02PM
2.78
11:58AM
2.36
11:34PM
2.84
12:24PM
2.48
12:06AM
2.84
12:50PM
2.57
12:37AM
2.77
1:17PM
2.64
1:10AM
2.63
1:45PM
2.67
1:45AM
2.43
Low Tide
/ height (m)
4:24PM
1.02
5:14AM
0.21
4:59PM
0.89
5:42AM
0.13
5:32PM
0.78
6:09AM
0.09
6:06PM
0.69
6:35AM
0.11
6:39PM
0.63
7:02AM
0.18
7:15PM
0.61
7:28AM
0.30
7:53PM
0.62
7:56AM
0.46
Sun
18
Monday
19
Tuesday
20
Wednesday
21
Thursday
22
Friday
23
Saturday
24
Sunrise--5:54--5:54--5:54--5:56--5:56--5:56--5:56
Sunset6:30--6:30--6:30--6:30--6:30--6:31--6:31--
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
mod rain
thunderstorm
thunderstorm
mod rain
thunderstorm
heavy rain
mod rain
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
part cloud
clear
thunderstorm
Rain (mm)
2547141011146124485383547---3
Temp. °C292728272727272626252526262626262628302729
Feels °C (?)303029282929272925262626262627272829313031
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Latest Updates

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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.

View detailed surf forecast for Wanukaka at:
surf-forecast.com

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.

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