Batu Karas Surf Break

Batu Karas Surf Forecast and Surf Report

Lat Long: 7.75° S 108.50° E

Issued: 6 am 23 Jun 2026 (local time)

Forecast update in  hr  min

Today's Batu Karas sea temperature is
28.1° 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 23 Jun 2026:

  • Best quality surf: Tuesday 30 Jun, 1PM (local time) - 4.5ft (1.4m), 13s period, S swell with cross-offshore winds.
  • Most powerful swell: Saturday 27 Jun, 7PM (local time) - 6ft (1.9m), 18s period, SSW swell with 2,247 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 30 Jun, 1PM (local time) - 4.5ft (1.4m), 13s period with S 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 1.4m and 13s period with a secondary swell of 1.2m and 14s. 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 1.9m 18s and forecast to arrive on Saturday (Jun 27) at 7PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 6s period and expected on Monday (Jun 29) at 1PM.

Wave TypeTime (WIB) & Date Wave Height & Period
Next good surf (1 star+) 1PM (Tue 30th Jun)4.5ft (1.4m) 13s
Best Surf 1PM (Tue 30th Jun)4.5ft (1.4m) 13s
Most Powerful 7PM (Sat 27th Jun)6ft (1.9m) 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

Moderate rain (total 11mm), heaviest on Wed night. Warm (max 27°C on Tue morning, min 25°C on Tue night). Wind will be generally light.

Days 4-6 Weather Summary

Moderate rain (total 13mm), heaviest on Fri night. Warm (max 27°C on Fri morning, min 24°C on Sun night). Wind will be generally light.

Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
2
1
1
0
0
1
0
0
0
0
1
2
2
2
2
1
2
2
1
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.5
SW
15
1.4
SW
15
1.3
SSW
15
1.2
SW
15
1.1
SW
14
1.1
SW
14
0.9
SSW
14
0.9
SW
13
1.5
ESE
7
0.8
SSW
14
0.5
SSW
22
1
SSW
20
1.4
SSW
19
1.7
SSW
18
1.9
SSW
17
2
SSW
16
1.9
SSW
16
2
SSW
16
1.7
SSW
16
1.7
S
15
1.7
SSW
14
Wave Graph
Metric surfscale
Energy kJ
953
869
711
631
476
476
352
261
243
264
265
746
1466
1795
2196
2077
1857
1908
1415
1246
1240
Wind (km/h)
10
ESE
15
SE
10
E
15
ESE
20
ESE
15
E
10
ESE
20
ESE
10
E
15
E
20
ESE
15
ESE
25
E
15
ESE
20
ESE
25
ESE
20
ESE
15
ESE
15
E
20
ESE
10
NE
Wind State
cross
cross-off
cross-on
cross
cross
cross-on
cross
cross
cross-on
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross-on
cross
cross-on
High Tide
2:05PM1.05m
3:00AM1.38m
3:25PM0.93m
3:57AM1.38m
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
Low Tide
8:04PM0.52m
10:03AM0.59m
8:52PM0.60m
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
clear
part cloud
clear
thunderstorm
clear
thunderstorm
thunderstorm
part cloud
thunderstorm
thunderstorm
clear
thunderstorm
thunderstorm
clear
thunderstorm
rain showers
part cloud
part cloud
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:56
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
5:37
5:37
5:38
5:38
5:38
 mm
1
4
2
4
2
5
3
1
2
Temp °C
27
27
26
27
27
26
27
27
26
27
27
26
27
27
26
27
27
25
26
27
25
Feels °C
30
29
29
30
28
29
31
29
29
28
28
29
27
28
28
27
27
26
28
27
27
Swell 1
Height (m)
Direction
Period (s)
1.5
SW
15
1.4
SW
15
1.3
SSW
15
1.2
SW
15
1.1
SW
14
1.1
SW
14
0.9
SSW
14
0.9
SW
13
0.8
SSW
13
0.8
SSW
14
0.7
SW
14
1
SSW
20
1.4
SSW
19
1.7
SSW
18
1.9
SSW
17
2
SSW
16
1.9
SSW
16
2
SSW
16
1.7
SSW
16
1.7
S
15
1.7
SSW
14
Energy kJ
953
869
711
631
476
476
352
261
229
261
191
746
1466
1795
2196
2077
1857
1908
1415
1246
1240
Swell 2
Height (m)
Direction
Period (s)
1.1
SE
8
1.1
SE
8
1.2
ESE
8
0.1
W
8
0.1
W
8
0.1
W
10
0.1
W
12
0.3
SSW
8
0.2
SSW
9
0.4
SW
18
0.6
WSW
16
0.7
SW
16
0.9
SW
15
0.8
WSW
14
0.7
SW
13
0.8
S
17
1.4
S
15
1.3
SSW
15
1.2
S
14
Energy kJ
154
147
166
1
1
2
3
14
7
79
179
258
309
264
180
354
846
730
541
Swell 3
Height (m)
Direction
Period (s)
0.1
S
8
0.2
W
8
0.1
W
13
0.1
W
13
0.1
W
13
0.1
W
12
0.1
W
12
0.2
WSW
18
0.3
SSW
23
0.5
SSW
22
0.7
SSW
13
0.6
SSW
12
0.6
SSW
13
0.1
W
20
0.1
SW
24
0.1
SW
24
0.1
W
18
Energy kJ
1
6
3
3
3
3
3
34
107
265
151
103
111
7
22
22
6
Wind waves
Height (m)
Direction
Period (s)
1.6
ESE
8
1.4
ESE
7
1.4
ESE
7
1.6
ESE
7
1.5
ESE
7
1.5
ESE
7
1.6
ESE
7
1.5
ESE
7
1.4
SE
7
1.6
ESE
7
1.5
ESE
7
1.2
SE
7
1.1
SE
6
1.1
SE
6
1.1
SE
6
1.1
SE
6
1.1
SE
6
1.1
SE
6
Energy kJ
270
207
202
242
243
243
264
237
217
243
218
131
91
98
95
92
92
89
Nearest Offshore or Glassy
Rating
(10 max)
3
3
3
3
3
2
2
2
2
3
3
4
4
4
4
4
4
4
4
4
4
Distance (km)
230
230
8
230
230
18
230
230
18
25
230
230
230
519
230
233
519
18
18
519
6
Best forecast wave conditions in Central Java
Rating
(10 max)
3
2
2
3
4
4
4
Best forecast wave conditions in Indonesia
Rating
(10 max)
4
3
3
3
3
3
3
3
2
3
3
4
4
4
4
4
4
4
4
4
4
Header Global
Rating
(10 max)
5
5
7
9
8
5
5
4
5
5
5
5
5
5
5
9
9
7
7
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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