Wanjapu Surf Break

Lat Long: 9.65° S 119.02° E

Wanjapu Surf Forecast and Surf Report

Issued: 7 am 25 Aug 2026 (local time)

Forecast update in  hr  min

Today's Wanjapu sea temperature is
25.6°C
0.7° 

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


Wanjapu surf forecast from 25 Aug 2026:

  • Best quality surf: Friday 28 Aug, 2AM (local time) - 6ft (1.8m), 18s period, SW swell with glassy winds.
  • Most powerful swell: Friday 28 Aug, 2PM (local time) - 10ft (3.0m), 17s period, SW swell with 4,278 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 25 Aug, 11PM (local time) - 5.5ft (1.7m), 16s period with SW 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 (Aug 25) at 11PM. The primary swell is predicted to be 1.7m and 16s period with a secondary swell of 0.9m 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 3.0m 17s and forecast to arrive on Friday (Aug 28) 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 1.2m 6s period and expected on Tuesday (Sep 01) at 2AM.

Wave TypeTime (WITA) & Date Wave Height & Period
Next good surf (1 star+)11PM (Tue 25th Aug)5.5ft (1.7m) 16s
Best Surf 2AM (Fri 28th Aug)6ft (1.8m) 18s
Most Powerful 2PM (Fri 28th Aug)10ft (3.0m) 17s

Table - best surf conditions forecast for Wanjapu over the next 16 days.


The Lowdown

Alright crew, Rusty here. Let's have a look at what Wanjapu has in store for us.

It's a bit of a tricky outlook, to be honest. The swell is coming through fairly consistently from the SW, but very rarely are the winds playing nice for clean conditions. The water temp is sitting at 78°, which is about normal for this time of year, so don't expect any surprises there.

We start off with no real quality on Tuesday the 25th. There's a 5ft SW swell but that SSE wind is creating a bumpy cross-shore mess, so it's a pass.

Wednesday the 26th morning actually looks like the best window of the early period. The swell holds at 6ft from the SW, but crucially we get a clean 3 mph offshore wind from the SSW. The combined energy is moderate (1194) and it's a reef break, so that long 14-second period should set up nicely. It's a solid call for advanced surfers, though you might have some company on the takeoff.

After that, things get a bit messy. The rest of that week and into the weekend is mostly cross-onshore winds making for choppy faces. The swell does bump up on Friday the 28th to a solid 8ft from the SW with a very long 17-second period – that's powerful (4090 combined energy) but at that height and with the cross-onshore wind, it's really one for experienced guys only. For most of us, it's a washout.

We get another good window on Monday the 31st morning. The swell drops to a clean 4ft but the period is super long at 19 seconds and the wind is offshore from the SSW. It will be a bit small but incredibly clean and lined-up on that reef. A good time for a more relaxed session.

Tuesday September 1st morning has a bigger 7ft SW swell (2263 combined energy) and the wind is only a light cross-onshore, so the surface quality won't be perfect but there will be plenty of power. The same goes for Wednesday September 2nd morning with a similar 7ft SW swell and a 17-second period, just with a touch of cross-onshore wind again. It's a frustrating pattern.

Honestly, for the standouts, Wednesday the 26th morning and Monday the 31st morning are your best bets for clean conditions. If you want raw power and are confident in your abilities, Friday the 28th morning has the biggest swell, but the wind will be an issue.

The rest of the outlook into the second week holds similar sized SW swells but it's a repeating story of either cross or cross-onshore winds keeping the surface bumpy. There are no perfect days on offer.

Stay patient, pick your window, and enjoy the clean ones while they last.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 26°C on Tue morning, min 23°C on Tue night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 26°C on Fri afternoon, min 23°C on Sat night). Wind will be generally light.

Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
Monday
31
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
3
2
4
3
3
3
3
2
5
4
2
4
3
2
4
2
2
4
3
2
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.6
SW
14
1.7
SW
16
1.7
SW
15
1.7
SW
14
1.7
SSW
14
1.5
SW
13
1.3
SSW
12
0.8
SW
21
1.8
SW
18
2.5
SW
17
2.5
SW
16
2.4
SW
16
2.1
SW
16
2
SW
15
1.6
SW
14
1.4
SW
13
1.4
SW
13
1
SW
19
1.2
SW
19
1.5
SW
18
1.9
SW
18
Wave Graph
Metric surfscale
Energy kJ
1016
1449
1237
1187
1065
769
521
589
2127
4090
3587
2905
2158
1672
1094
711
690
738
1044
1382
2078
Wind (km/h)
10
SSE
20
SSE
15
ESE
5
SSW
10
SSE
5
ENE
10
WNW
15
SSE
5
NE
10
W
15
SSE
5
ENE
10
WSW
20
SE
10
E
10
S
20
SE
5
E
10
SSW
20
SE
15
ESE
Wind State
cross
cross
cross-off
on
cross
glassy
cross-on
cross-on
glassy
cross-on
cross-on
cross-off
on
cross
cross-off
cross-on
cross
cross-off
on
cross
cross-off
High Tide
8:39AM2.20m
10:04PM1.98m
9:23AM2.40m
10:23PM2.20m
9:58AM2.59m
10:44PM2.40m
10:29AM2.73m
11:05PM2.60m
10:59AM2.81m
11:26PM2.76m
11:29AM2.82m
11:49PM2.88m
11:58AM2.77m
00:13AM2.96m
Low Tide
3:41PM0.66m
3:26AM1.18m
4:06PM0.49m
3:59AM0.96m
4:30PM0.34m
4:29AM0.75m
4:53PM0.25m
4:58AM0.55m
5:16PM0.20m
5:28AM0.39m
5:40PM0.20m
5:58AM0.28m
6:04PM0.24m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:09
6:09
6:09
6:07
6:07
6:07
6:07
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:01
6:01
6:01
6:01
6:00
6:00
6:00
 mm
Temp °C
26
25
25
25
25
25
25
25
25
25
26
25
25
26
25
25
26
25
25
26
25
Feels °C
27
27
26
27
27
27
27
26
26
26
27
26
27
26
26
27
28
27
27
28
26
  • Map Icons:
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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.

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