Batu Karas surf break

Batu Karas surfForecast / Java – Central / Indonesia

information circle16 Day Weather and Surf, issued 6 pm Monday 01 Jun 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
29.7° C
(Which is 1.1°C warmer than normal for this time of year)

Batu Karas surf forecast from 1 Jun 2026:

  • Best quality surf: Monday 8 Jun, 4AM (local time) - 7.5ft (2.3m), 18s period, SSW swell with cross-offshore winds.
  • Most powerful swell: Monday 8 Jun, 1AM (local time) - 7.5ft (2.3m), 18s period, SSW swell with 3,207 kJ wave energy.
  • Next surfable swell (1★+): Monday 8 Jun, 4AM (local time) - 7.5ft (2.3m), 18s period with SSW 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 Monday (Jun 08) at 4AM. The primary swell is predicted to be 2.3m and 18s period with a secondary swell of 0.4m and 10s. Another secondary swell of 1.2m and 7s 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 2.3m 18s and forecast to arrive on Monday (Jun 08) at 1AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 6s period and expected on Thursday (Jun 04) at 1PM.

Wave TypeTime (WIB) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Mon 8th Jun)7.5ft (2.3m) 18s
Best Surf 4AM (Mon 8th Jun)7.5ft (2.3m) 18s
Most Powerful 1AM (Mon 8th Jun)7.5ft (2.3m) 18s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Light rain (total 9mm), mostly falling on Thu morning. Warm (max 27°C on Mon afternoon, min 25°C on Mon night). Wind will be generally light.

Days 5-7 Weather Summary

Heavy rain (total 30mm), heaviest during Thu afternoon. Warm (max 28°C on Fri afternoon, min 25°C on Thu night). Wind will be generally light.

Mon
1
Tuesday
2
Wednesday
3
Thursday
4
Friday
5
Saturday
6
Sunday
7
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
0
1
0
1
3
2
2
2
2
2
1
1
1
1
1
2
2
2
2
3
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
SSW
15
1.3
SSW
14
1.6
SSW
13
1.7
SSW
13
2
SSW
14
2
S
14
1.6
SSW
14
1.8
SSE
13
0.9
SW
18
0.9
SSW
17
1.4
SW
16
1.4
SW
16
1.4
SW
16
1.2
SSW
18
1.8
SSW
16
1.8
SSW
16
1.6
SSW
15
1.6
SSW
16
1.5
SSW
19
2.3
SSW
18
2.3
SSW
16
Wave Graph
Metric surfscale
Energy kJ
358
630
837
995
1470
1622
928
1057
465
481
1070
929
993
897
1713
1692
1209
1225
1631
3207
2719
Wind (km/h)
15
ESE
10
E
15
E
15
ESE
10
E
15
E
15
ESE
10
E
15
E
15
ESE
15
E
20
E
20
ESE
15
ESE
25
ESE
20
ESE
15
ESE
20
ESE
20
ESE
15
ESE
20
ESE
cross
cross-on
cross-on
cross
cross-on
cross-on
cross
cross-on
cross
cross
cross-on
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
High Tide
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
11:03AM1.45m
00:19AM1.13m
11:40AM1.36m
1:03AM1.17m
12:24PM1.25m
Low Tide
2:26AM0.51m
3:44PM0.13m
3:00AM0.52m
4:17PM0.15m
3:34AM0.54m
4:50PM0.19m
4:09AM0.58m
5:24PM0.24m
4:47AM0.64m
5:57PM0.30m
5:33AM0.69m
6:32PM0.37m
6:31AM0.73m
part cloud
part cloud
part cloud
clear
part cloud
part cloud
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
rain showers
part cloud
rain showers
rain showers
part cloud
rain showers
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:52
5:52
5:52
5:52
5:52
5:54
5:54
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:34
5:34
5:34
5:35
5:35
5:35
5:35
5:35
3
6
5
7
5
3
6
1
2
1
2
1
Temp °C
27
26
27
27
26
27
27
26
27
27
26
27
28
27
28
27
26
28
27
26
27
28
28
28
28
28
29
29
28
30
30
29
29
30
28
28
27
27
27
26
27
27
Swell 1
Height (m)
Direction
Period (s)
0.9
SSW
11
1.3
SSW
14
1.6
SSW
13
1.7
SSW
13
2
SSW
14
2
S
14
1.6
SSW
14
1.8
SSE
13
1.2
SSW
13
1
SSW
13
1.4
SW
16
1.4
SW
16
1.4
SW
16
1.2
SW
14
1.8
SSW
16
1.8
SSW
16
1.6
SSW
15
1.6
SSW
16
1.6
SSW
15
2.3
SSW
18
2.3
SSW
16
Energy kJ
183
630
837
995
1470
1622
928
1057
458
330
1070
929
993
614
1713
1692
1209
1225
1209
3207
2719
Swell 2
Height (m)
Direction
Period (s)
0.9
SSW
15
0.4
SW
13
0.5
SSW
18
0.9
SSW
17
1
S
17
1.1
SW
15
1.5
S
14
1.3
SSW
13
1.2
S
12
0.9
SSW
17
0.7
S
12
0.6
S
11
0.7
S
13
1.2
SSW
18
0.5
S
10
0.6
S
13
0.9
SSW
21
1.2
SSW
20
1.5
SSW
19
0.3
S
10
0.3
S
9
Energy kJ
358
61
180
414
580
509
919
553
437
481
132
87
162
897
50
123
808
1021
1631
17
14
Swell 3
Height (m)
Direction
Period (s)
0.7
SW
14
0.3
SSW
20
0.1
W
9
0.2
SSW
21
0.6
S
15
0.5
SW
20
0.5
SW
19
0.9
SSW
18
0.9
SW
18
1
S
12
0.2
SSW
21
0.5
SSW
20
0.4
SSW
20
0.7
S
11
0.5
S
14
0.5
SSW
24
0.8
SW
12
0.4
S
11
0.4
S
10
Energy kJ
206
75
2
45
159
186
184
547
465
287
45
216
155
125
89
314
172
38
31
Wind waves
Height (m)
Direction
Period (s)
0.8
ESE
5
0.8
ESE
5
1
ESE
5
1
ESE
6
0.9
ESE
6
0.9
ESE
6
0.9
ESE
6
1.2
ESE
6
1.3
ESE
6
1.4
SE
6
1.6
SE
6
1.8
SE
6
1.6
SE
7
1.8
SE
7
1.8
SE
7
1.8
SE
7
1.5
ESE
7
1.4
SE
7
1.4
SE
7
1.3
ESE
7
1.4
SE
6
Energy kJ
34
34
61
68
55
55
55
84
112
131
209
261
230
286
286
286
211
189
189
154
144
Nearest Offshore or Glassy
Rating
(10 max)
3
2
3
4
4
4
4
4
3
4
3
4
4
4
4
4
4
4
4
4
4
Distance (km)
233
8
25
519
8
18
230
8
18
230
18
230
233
230
230
519
230
519
519
230
230
Best forecast wave conditions in Central Java
Rating
(10 max)
2
3
4
4
4
3
3
Best forecast wave conditions in Indonesia
Rating
(10 max)
3
3
3
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
Header Global
Rating
(10 max)
4
5
4
4
5
4
5
5
5
5
5
4
9
8
8
8
9
8
9
9
6
  • 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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