Wanjapu surfForecast / Sumba / Indonesia

information circle12 Day Weather and Surf, issued 7 am Monday 29 Dec 2025 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
29.7° C
(Which is normal for this time of year)


Best Forecast Surf Conditions for Wanjapu this week:

The surf forecast for Wanjapu over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Jan 03) at 2AM. The primary swell is predicted to be 0.9m and 12s period with a secondary swell of 0.8m and 7s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Wanjapu in the next 12 days are 1.8m 11s and forecast to arrive on Tuesday (Dec 30) at 2PM. Winds are predicted to be cross-onshore at the time the swell arrives.

Wave TypeTime (WITA) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Sat 3rd Jan)3ft (0.9m) 12s
Best Surf 5AM (Sat 3rd Jan)3.5ft (1.1m) 11s
Most Powerful 2PM (Tue 30th Dec)6ft (1.8m) 11s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Heavy rain (total 33mm), heaviest during Tue morning. Warm (max 29°C on Mon morning, min 27°C on Mon night). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Warm (max 28°C on Thu morning, min 27°C on Thu night). Wind will be generally light.

Monday
29
Tuesday
30
Wednesday
31
Thursday
01
Friday
02
Saturday
03
Sunday
04
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
1
0
0
1
0
1
1
0
0
2
0
0
2
2
2
3
1
1
2
Swell
Height Map
Wave Height (m) & direction (?)
1.1
SW
1.1
SW
1.4
SW
1.5
SSW
1.7
SW
1.6
SW
1.5
SW
1.5
SW
1.5
SSW
1.5
SSW
1.4
SW
0.9
SSW
1.3
SSW
1.2
SSW
0.9
SSW
0.7
SSW
0.8
SSW
1
SSW
1.2
SSW
1.2
SSW
1.2
SSW
Period(s) (?)141410101212121112111113121212181816151514
Wave
Graph
(?)Metric surfscale
Energy kJ (?)459434368402805655594553647573415286436378235289399539584568530
Wind
(km/h)
25
WNW
20
W
15
WNW
15
W
20
WSW
15
WSW
15
WSW
15
SW
15
SW
15
WSW
20
SW
5
SW
10
WSW
10
SW
5
SW
5
WNW
5
SW
0
ESE
10
SW
15
SW
5
SSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
cross-
on
cross-
on
cross-
on
ononcross-
on
onononononcross-
on
onglasscross-
on
onglassononon
High Tide
/ height (m)
4:34PM
2.39
5:21AM
1.74
5:45PM
2.44
7:11AM
1.71
6:58PM
2.54
8:37AM
1.82
8:06PM
2.70
9:38AM
1.97
9:05PM
2.86
10:26AM
2.13
9:58PM
3.00
11:08AM
2.28
10:46PM
3.08
Low Tide
/ height (m)
9:45AM
0.92
11:26PM
0.97
10:46AM
1.09
1:01AM
0.81
12:09PM
1.19
2:20AM
0.57
1:37PM
1.17
3:19AM
0.32
2:48PM
1.06
4:09AM
0.12
3:46PM
0.91
4:53AM
-0.01
4:37PM
0.76
Monday
29
Tuesday
30
Wednesday
31
Thursday
01
Friday
02
Saturday
03
Sunday
04
Sunrise5:43--5:45--5:46--5:46--5:47--5:47--5:48--
Sunset-6:25--6:25--6:25--6:27--6:27--6:28--6:28-
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
part cloud
clear
part cloud
part cloud
part cloud
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
Rain (mm)
5112123----------------
Temp. °C292928282828282828282828282828282828282928
Feels °C (?)303031302929292930302930313031323132313231
  • 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 12 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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