Batu Karas surf break

Batu Karas surfForecast / Java – Central / Indonesia

information circle16 Day Weather and Surf, issued 12 am Saturday 30 May 2026 WIB
Forecast update in hr  min  s Forecast update imminent
Batu Karas surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Batu Karas sea temperature is
30.0° C
(Which is 1.3°C warmer than normal for this time of year)

Batu Karas surf forecast from 29 May 2026:

  • Best quality surf: Wednesday 3 Jun, 1PM (local time) - 6ft (1.9m), 14s period, SSW swell with cross-offshore winds.
  • Most powerful swell: Wednesday 3 Jun, 4AM (local time) - 7ft (2.2m), 14s period, SSW swell with 1,939 kJ wave energy.
  • Next surfable swell (1★+): Saturday 30 May, 1PM (local time) - 5ft (1.5m), 13s period with SW swell.

Best Forecast Surf Conditions for Batu Karas this week:

The surf forecast for Batu Karas over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (May 30) at 1PM. The primary swell is predicted to be 1.5m and 13s period with a secondary swell of 0.1m and 7s. Another secondary swell of 0.5m and 6s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Batu Karas in the next 16 days are 2.2m 14s and forecast to arrive on Wednesday (Jun 03) at 4AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 6s period and expected on Friday (Jun 05) at 10AM.

Wave TypeTime (WIB) & Date Wave Height & Period
Next good surf (1 star+) 1PM (Sat 30th May)5ft (1.5m) 13s
Best Surf 1PM (Wed 3rd Jun)6ft (1.9m) 14s
Most Powerful 4AM (Wed 3rd Jun)7ft (2.2m) 14s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Some drizzle, heaviest during Sun morning. Warm (max 28°C on Sat morning, min 24°C on Sun night). Wind will be generally light.

Days 4-6 Weather Summary

Some drizzle, heaviest during Thu morning. Warm (max 28°C on Thu morning, min 23°C on Mon night). Wind will be generally light.

Saturday
30
Sunday
31
Monday
1
Tuesday
2
Wednesday
3
Thursday
4
Friday
5
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
1
1
1
1
1
1
1
1
2
2
2
3
3
1
2
1
2
2
0
2
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
13
1.5
SW
13
1.4
SW
12
1.3
SSW
12
1.3
SSW
12
1.2
SSW
12
1
SSW
11
1
SSW
15
1.3
SSW
14
1.5
SSW
13
1.7
SSW
13
2.1
SSW
15
1.9
S
14
1.7
SSW
14
1.5
S
13
1.3
SSW
13
0.9
SSW
17
1.2
SW
16
1.4
SW
16
1.4
SW
14
1.1
SSW
18
Wave Graph
Metric surfscale
Energy kJ
854
757
627
488
472
359
251
411
630
756
894
1801
1442
1189
772
528
487
767
1018
777
770
Wind (km/h)
10
E
10
ESE
10
E
10
ESE
15
SE
10
ENE
10
E
10
ESE
10
NE
10
E
15
ESE
15
E
10
E
15
ESE
10
ENE
10
ESE
15
ESE
10
ENE
10
ESE
20
ESE
15
E
cross
cross
cross-on
cross
cross-off
cross-on
cross
cross
on
cross
cross
cross-on
cross
cross
cross-on
cross
cross
cross-on
cross
cross
cross
High Tide
7:07AM1.56m
8:11PM1.09m
7:41AM1.59m
8:45PM1.10m
8:15AM1.61m
9:18PM1.11m
8:49AM1.62m
9:51PM1.11m
9:23AM1.61m
10:25PM1.11m
9:57AM1.57m
11:01PM1.11m
10:30AM1.52m
11:39PM1.12m
Low Tide
2:05PM0.20m
1:18AM0.55m
2:38PM0.15m
1:53AM0.53m
3:11PM0.12m
2:26AM0.51m
3:44PM0.13m
3:00AM0.52m
4:17PM0.15m
3:34AM0.54m
4:50PM0.19m
4:09AM0.58m
5:24PM0.24m
part cloud
clear
part cloud
rain showers
part cloud
part cloud
clear
clear
part cloud
clear
part cloud
part cloud
clear
part cloud
part cloud
rain showers
clear
part cloud
thunderstorm
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:52
5:52
5:52
5:52
5:52
5:52
5:52
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:34
5:34
5:34
5:34
5:34
5:35
5:35
1
1
2
2
7
Temp °C
28
28
26
27
27
26
27
27
26
27
27
26
26
27
26
28
27
26
27
27
27
30
30
29
28
28
27
28
28
28
29
29
28
28
29
28
29
28
28
29
29
29
Swell 1
Height (m)
Direction
Period (s)
1.6
SW
13
1.5
SW
13
1.4
SW
12
1.3
SSW
12
1.3
SSW
12
1.2
SSW
12
1
SSW
11
1
SSW
15
1.3
SSW
14
1.5
SSW
13
1.7
SSW
13
2.1
SSW
15
1.9
S
14
1.7
SSW
14
1.5
S
13
1.2
S
12
1.2
S
12
1.3
SSE
12
1.4
SW
16
1.4
SW
14
1.2
SW
15
Energy kJ
854
757
627
488
472
359
251
411
630
756
894
1801
1442
1189
772
434
416
483
1018
777
631
Swell 2
Height (m)
Direction
Period (s)
0.1
E
6
0.1
W
15
0.2
SSW
18
0.3
SSW
18
0.4
SSW
16
0.8
SSW
16
0.7
SSW
15
0.9
SSW
11
0.6
SW
13
0.9
SE
6
1
SSW
17
1.1
SW
16
1.4
SSW
15
1.4
S
14
1.3
SSW
14
1.3
SSW
13
1
SSW
12
1.2
SW
16
1.4
SSE
11
0.8
SSW
9
1.1
SSW
18
Energy kJ
1
4
31
61
103
326
196
183
113
62
618
558
807
790
569
528
325
767
447
113
770
Swell 3
Height (m)
Direction
Period (s)
0.1
SE
8
0.1
S
20
0.1
W
14
0.1
W
11
0.1
W
10
0.1
W
10
0.6
SW
15
0.6
SW
14
0.3
SSW
20
0.6
SSW
18
0.2
SSW
21
0.9
SE
6
0.6
SE
6
0.5
SW
19
0.9
SSW
18
0.8
SW
18
0.9
SSW
17
0.8
SSW
12
0.5
S
11
0.4
S
11
0.7
S
8
Energy kJ
2
7
4
2
2
2
174
132
75
249
45
47
25
184
547
383
487
180
58
36
61
Wind waves
Height (m)
Direction
Period (s)
0.5
SE
6
0.5
SE
6
0.5
SE
6
0.5
SE
6
0.5
SE
6
0.7
ESE
4
0.7
ESE
5
0.7
ESE
5
1
ESE
6
0.9
SE
6
1
SE
6
1
SE
6
0.8
ESE
6
0.6
ESE
6
1.1
SE
6
1.1
SE
6
1.1
SE
6
Energy kJ
18
18
16
18
15
16
19
23
68
49
73
73
39
25
69
72
86
Nearest Offshore or Glassy
Rating
(10 max)
2
3
2
3
3
3
2
2
3
3
4
4
4
4
4
4
4
4
4
3
4
Distance (km)
18
519
18
265
519
6
18
717
6
18
233
8
233
592
8
233
519
8
233
230
18
Best forecast wave conditions in Central Java
Rating
(10 max)
2
2
3
2
3
3
4
4
4
4
Best forecast wave conditions in Indonesia
Rating
(10 max)
4
3
3
3
3
3
3
3
3
4
4
4
4
4
4
4
4
4
4
4
4
Header Global
Rating
(10 max)
5
5
7
7
6
5
5
4
4
5
4
4
5
5
5
5
5
5
5
5
5
  • 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 Batu Karas Surf forecast

The above surf forecast table for Batu Karas provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Batu Karas can be found by selecting the local surf guide option on the grey menu. Our Batu Karas 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 (Batu Karas) 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 Batu Karas 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.

Batu Karas is 43 km (27 miles) from the city of Sidareja. If you plan a holiday in Central Java, look for hotels and other accommodation in Sidareja. Sidareja has rooms for a wide range of budgets as well as car hire and transport links.

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