Batu Karas Surf Break

Batu Karas Surf Forecast and Surf Report

Lat Long: 7.75° S 108.50° E

Issued: 6 am 25 Jun 2026 (local time)

Forecast update in  hr  min

Today's Batu Karas sea temperature is
28.0° C

Normal for this time of year

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


Batu Karas surf forecast from 25 Jun 2026:

  • Best quality surf: Tuesday 30 Jun, 1PM (local time) - 4.5ft (1.3m), 15s period, SSW swell with cross-offshore winds.
  • Most powerful swell: Monday 29 Jun, 7AM (local time) - 8ft (2.5m), 16s period, SSW swell with 3,330 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 30 Jun, 1PM (local time) - 4.5ft (1.3m), 15s 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 Tuesday (Jun 30) at 1PM. The primary swell is predicted to be 1.3m and 15s period with a secondary swell of 1.5m and 13s. Another secondary swell of 1.1m 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 2.5m 16s and forecast to arrive on Monday (Jun 29) at 7AM. Winds are predicted to be cross-onshore at the time the swell arrives.

Wave TypeTime (WIB) & Date Wave Height & Period
Next good surf (1 star+) 1PM (Tue 30th Jun)4.5ft (1.3m) 15s
Best Surf 1PM (Tue 30th Jun)4.5ft (1.3m) 15s
Most Powerful 7AM (Mon 29th Jun)8ft (2.5m) 16s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Moderate rain (total 15mm), heaviest on Thu morning. Warm (max 27°C on Fri morning, min 25°C on Thu night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 27°C on Mon morning, min 23°C on Tue night). Wind will be generally light.

Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
1
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
0
1
0
0
2
2
2
2
2
2
2
2
2
2
2
3
2
2
3
2
Swell
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
14
0.9
SW
13
1.4
SE
7
1.7
ESE
7
0.5
SSW
22
1
SSW
20
1.4
SSW
19
1.8
SSW
18
1.8
SSW
18
1.8
SSW
16
1.7
SSW
16
2.3
SSW
16
2.5
SSW
16
2.4
SSW
15
2.2
SSW
14
2.1
SSW
14
1.4
SSW
15
2.1
S
14
1.3
SSW
15
1.8
SSW
14
1.2
SSW
16
Wave Graph
Metric surfscale
Energy kJ
352
261
194
286
265
746
1466
2010
1922
1647
1451
2523
3246
2482
1939
1605
929
1807
752
1207
761
Wind (km/h)
15
E
15
ESE
15
ESE
20
ESE
20
ESE
15
ESE
20
ESE
20
ESE
20
ESE
20
ESE
20
ESE
15
E
15
E
20
ESE
15
E
10
ESE
15
SE
10
E
10
ESE
10
SE
5
NE
Wind State
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross-on
cross
cross-on
cross
cross-off
cross-on
cross
cross-off
on
High Tide
5:03PM0.87m
4:55AM1.39m
6:27PM0.88m
5:49AM1.42m
7:24PM0.92m
6:38AM1.45m
8:06PM0.97m
7:22AM1.50m
8:42PM1.02m
8:02AM1.55m
9:15PM1.07m
8:40AM1.59m
9:47PM1.13m
Low Tide
11:22AM0.52m
9:51PM0.66m
12:25PM0.44m
10:56PM0.69m
1:14PM0.35m
11:57PM0.68m
1:55PM0.28m
00:49AM0.64m
2:31PM0.22m
1:35AM0.60m
3:05PM0.17m
2:17AM0.57m
3:36PM0.15m
2:56AM0.55m
thunderstorm
part cloud
thunderstorm
thunderstorm
part cloud
thunderstorm
thunderstorm
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
part cloud
clear
clear
clear
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:58
5:58
5:58
5:58
5:58
5:58
5:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:37
5:37
5:38
5:38
5:38
5:38
5:39
 mm
4
3
1
3
4
Temp °C
26
26
26
27
26
26
27
27
26
26
26
25
27
26
25
26
26
25
25
25
24
Feels °C
28
28
28
28
27
28
28
28
27
26
26
26
26
26
26
28
28
27
27
27
27
Swell 1
Height (m)
Direction
Period (s)
0.9
SSW
14
0.9
SW
13
0.7
SW
13
0.8
SSW
14
0.7
SW
14
1
SSW
20
1.4
SSW
19
1.8
SSW
18
1.8
SSW
18
1.8
SSW
16
1.7
SSW
16
2.3
SSW
16
2.5
SSW
16
2.4
SSW
15
2.2
SSW
14
2.1
SSW
14
1.4
S
13
2.1
S
14
1.3
SSW
15
1.8
SSW
14
1.4
SSW
13
Energy kJ
352
261
183
261
191
746
1466
2010
1922
1647
1451
2523
3246
2482
1939
1605
673
1807
752
1207
669
Swell 2
Height (m)
Direction
Period (s)
0.1
W
9
0.3
SSW
9
0.3
SW
18
0.4
SW
18
0.6
WSW
16
0.9
SW
16
1.1
SW
15
0.8
WSW
14
0.7
SW
14
0.9
S
18
1.4
S
18
1.2
SW
16
0.1
SW
24
0.1
SW
24
0.7
SSW
15
0.4
SW
18
1.4
SSW
15
0.6
ESE
6
1.1
SSE
7
0.7
SSW
18
1.2
SSW
16
Energy kJ
2
15
51
79
179
367
472
264
186
544
1243
757
22
22
191
80
929
30
121
289
761
Swell 3
Height (m)
Direction
Period (s)
0.1
W
12
0.2
S
7
0.2
SSW
9
0.3
SSW
23
0.5
SSW
22
0.7
SSW
13
0.2
S
8
0.2
S
8
0.6
WSW
12
0.4
WSW
12
0.1
SW
21
0.2
SSW
21
0.2
WSW
21
0.4
SW
20
1
S
12
0.4
ESE
6
0.5
S
20
Energy kJ
3
4
7
107
265
142
5
5
99
56
18
45
44
134
300
14
186
Wind waves
Height (m)
Direction
Period (s)
1.5
ESE
7
1.4
ESE
7
1.4
SE
7
1.7
ESE
7
1.5
ESE
7
1.4
SE
7
1.6
SE
7
1.4
SE
7
1.4
SE
7
1.2
SE
6
1.2
SE
6
1.3
ESE
7
1.3
ESE
6
1.3
ESE
6
1.2
SE
6
1.2
SE
6
0.9
ESE
6
Energy kJ
198
180
194
286
237
211
227
189
158
116
116
145
141
137
116
112
67
Nearest Offshore or Glassy
Rating
(10 max)
2
2
2
2
3
4
4
4
4
4
4
4
4
4
4
4
3
4
4
3
4
Distance (km)
230
230
230
230
233
230
230
734
230
230
519
25
18
519
18
519
0
18
519
0
6
Best forecast wave conditions in Central Java
Rating
(10 max)
4
4
4
3
4
3
4
Best forecast wave conditions in Indonesia
Rating
(10 max)
3
3
2
3
3
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
Header Global
Rating
(10 max)
5
5
5
6
7
5
6
6
5
6
6
5
6
5
9
7
5
5
7
5
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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