Wanjapu surfForecast / Sumba / Indonesia

information circle16 Day Weather and Surf, issued 7 am Thursday 28 May 2026 WITA
Forecast update in hr  min  s Forecast update imminent
Wanjapu surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Wanjapu sea temperature is
28.5° C
(Which is slightly warmer than usual)

Wanjapu surf forecast from 28 May 2026:

  • Best quality surf: Thursday 28 May, 11PM (local time) - 6ft (1.8m), 16s period, SW swell with cross-offshore winds.
  • Most powerful swell: Wednesday 3 Jun, 8AM (local time) - 7.5ft (2.3m), 14s period, SSW swell with 2,148 kJ wave energy.
  • Next surfable swell (1★+): Thursday 28 May, 11PM (local time) - 6ft (1.8m), 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 Thursday (May 28) at 11PM. The primary swell is predicted to be 1.8m and 16s period with a secondary swell of 0.5m 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 2.3m 14s and forecast to arrive on Wednesday (Jun 03) at 8AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 5s period and expected on Friday (May 29) at 11PM.

Wave TypeTime (WITA) & Date Wave Height & Period
Next good surf (1 star+)11PM (Thu 28th May)6ft (1.8m) 16s
Best Surf11PM (Thu 28th May)6ft (1.8m) 16s
Most Powerful 8AM (Wed 3rd Jun)7.5ft (2.3m) 14s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Warm (max 27°C on Thu afternoon, min 23°C on Sat night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 26°C on Sun morning, min 24°C on Sun morning). Wind will be generally light.

Thursday
28
Friday
29
Saturday
30
Sunday
31
Monday
1
Tuesday
2
Wednesday
3
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
4
3
4
3
3
3
2
1
2
2
0
2
2
1
3
2
3
4
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.1
SW
18
1.4
SW
18
1.8
SW
16
2
SW
16
1.9
SW
15
2
SW
14
1.7
SW
14
1.6
SW
13
1.5
SW
13
1.3
SW
13
1.2
SW
12
1.1
SW
12
1
SW
12
0.7
SW
15
0.9
SSW
15
1
SW
14
1.5
SW
14
2
SSW
16
2.3
SSW
14
2
SSW
14
2
SSW
14
Wave Graph
Metric surfscale
Energy kJ
808
1213
1591
1929
1697
1624
1139
919
755
572
423
361
264
223
372
395
816
1956
2118
1598
1453
Wind (km/h)
10
SE
20
SE
15
ESE
5
SSE
15
SE
15
ESE
5
SE
15
ESE
10
ENE
10
SSE
10
SSE
15
E
5
SSE
15
SSE
20
ESE
10
SE
20
SSE
15
ESE
20
SE
20
ESE
5
ENE
cross
cross
cross-off
glassy
cross
cross-off
cross
cross-off
off
cross-on
cross
cross-off
glassy
cross
cross-off
cross
cross
cross-off
cross
cross-off
off
High Tide
8:09AM2.49m
9:03PM2.03m
8:47AM2.58m
9:44PM2.11m
9:21AM2.66m
10:19PM2.16m
9:55AM2.72m
10:52PM2.19m
10:27AM2.76m
11:24PM2.20m
11:00AM2.77m
11:57PM2.19m
11:32AM2.74m
00:30AM2.16m
Low Tide
2:58PM0.63m
2:36AM1.01m
3:35PM0.47m
3:14AM0.97m
4:08PM0.34m
3:49AM0.92m
4:40PM0.25m
4:22AM0.88m
5:12PM0.22m
4:54AM0.86m
5:44PM0.22m
5:27AM0.87m
6:17PM0.26m
clear
clear
clear
clear
clear
part cloud
clear
clear
part cloud
clear
part cloud
part cloud
clear
part cloud
part cloud
clear
clear
part cloud
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:11
6:11
6:13
6:13
6:13
6:13
6:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:49
5:49
5:49
5:49
5:49
5:49
5:49
Temp °C
26
27
25
25
26
25
25
26
25
26
26
26
26
26
25
25
26
25
26
26
25
27
26
25
27
27
24
26
25
25
27
27
26
28
27
25
26
26
25
26
24
24
Swell 1
Height (m)
Direction
Period (s)
1.1
SW
18
1.4
SW
18
1.8
SW
16
2
SW
16
1.9
SW
15
2
SW
14
1.7
SW
14
1.6
SW
13
1.5
SW
13
1.3
SW
13
1.2
SW
12
1.1
SW
12
1
SW
12
0.9
SW
11
0.9
SSW
15
1
SW
14
1.5
SW
14
2
SSW
16
2.3
SSW
14
2
SSW
14
2
SSW
14
Energy kJ
808
1213
1591
1929
1697
1624
1139
919
755
572
423
361
264
185
372
395
816
1956
2118
1598
1453
Swell 2
Height (m)
Direction
Period (s)
0.9
SW
14
0.8
SW
13
0.5
SSE
6
0.4
SSE
6
0.8
SE
5
0.5
SE
5
0.5
SE
5
0.4
SE
5
0.2
SSW
18
0.4
SW
16
0.6
SSW
16
0.7
SW
15
0.6
SW
10
0.6
SW
11
0.1
SW
21
0.5
SW
19
0.4
SW
20
Energy kJ
322
208
20
11
28
10
13
6
31
66
169
223
87
92
18
184
136
Swell 3
Height (m)
Direction
Period (s)
0.1
S
20
0.1
SW
18
0.1
W
16
0.1
W
20
0.3
SSE
4
0.1
SW
16
0.4
SW
17
0.2
WSW
15
Energy kJ
7
12
5
8
3
10
76
21
Wind waves
Height (m)
Direction
Period (s)
0.5
SSE
6
0.7
SSE
4
0.6
SE
6
0.4
SSE
5
1
SE
5
0.6
SE
4
0.4
SE
5
0.6
SE
5
0.6
SE
4
0.5
SE
3
0.6
SE
5
0.4
SSE
4
0.4
SSE
4
0.8
SE
4
0.8
SE
4
0.6
SSE
4
Energy kJ
20
18
27
11
47
16
6
18
12
4
19
7
6
24
22
10
Nearest Offshore or Glassy
Rating
(10 max)
4
4
4
4
4
4
4
3
3
3
3
2
2
2
2
3
3
4
4
4
4
Distance (km)
116
118
0
0
118
0
116
0
0
116
118
0
0
118
33
116
118
33
118
118
0
Best forecast wave conditions in Sumba
Rating
(10 max)
4
4
4
3
3
2
2
2
4
4
Best forecast wave conditions in Indonesia
Rating
(10 max)
4
4
4
4
4
4
4
3
3
3
3
3
3
3
3
3
4
4
4
4
4
Header Global
Rating
(10 max)
7
9
9
6
5
5
5
5
7
7
5
5
5
4
4
4
5
5
5
4
4
  • 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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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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