Batu Karas surf break

Batu Karas surfForecast / Java – Central / Indonesia

information circle16 Day Weather and Surf, issued 6 am Wednesday 06 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
29.5° C
(Which is slightly warmer than usual)

Best Forecast Surf Conditions for Batu Karas this week:

The most powerful waves expected at Batu Karas in the next 16 days are 1.5m 15s and forecast to arrive on Tuesday (May 12) at 7PM. 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+)--
Best Surf--
Most Powerful 7PM (Tue 12th May)5ft (1.5m) 15s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Heavy rain (total 35mm), heaviest during Thu morning. Warm (max 29°C on Fri afternoon, min 26°C on Wed night). Wind will be generally light.

Days 4-6 Weather Summary

Heavy rain (total 40mm), heaviest during Sun night. Warm (max 28°C on Sat morning, min 26°C on Sat night). Wind will be generally light.

Wednesday
6
Thursday
7
Friday
8
Saturday
9
Sunday
10
Monday
11
Tuesday
12
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
1
1
2
1
0
0
0
0
0
0
0
1
0
1
1
1
2
2
Swell
Height Map
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Wave
Height (m)
Direction
Period (s)
0.9
SW
16
0.9
SW
15
0.9
SW
15
1.1
SW
18
1.2
SW
18
1.1
SW
16
1.2
SW
16
1.2
SW
15
1
SW
14
0.9
SW
14
0.8
SW
13
1.7
ESE
8
1.9
SE
8
1.9
SE
8
1.6
SE
8
1.5
SE
8
1.4
SE
8
0.5
SW
17
1.1
SW
14
1.2
SW
16
1.1
SW
15
Wave Graph
Metric surfscale
Energy kJ
427
322
384
719
905
602
729
693
407
341
215
322
467
511
346
255
223
147
507
720
551
Wind (km/h)
10
ENE
20
ESE
10
E
20
ESE
20
ESE
15
E
15
E
15
ESE
10
E
15
E
20
ESE
15
E
15
E
20
ESE
15
E
15
E
15
ESE
10
ENE
15
ESE
15
ESE
10
E
cross-on
cross
cross-on
cross
cross
cross
cross
cross
cross-on
cross-on
cross
cross-on
cross
cross
cross
cross-on
cross
cross-on
cross
cross
cross-on
High Tide
10:09AM1.59m
11:01PM1.07m
10:39AM1.51m
11:38PM1.02m
11:11AM1.43m
00:25AM0.98m
11:47AM1.33m
1:29AM0.97m
12:36PM1.23m
2:58AM1.01m
1:55PM1.12m
4:15AM1.12m
3:46PM1.07m
Low Tide
4:59PM0.21m
4:11AM0.53m
5:34PM0.29m
4:39AM0.61m
6:14PM0.38m
5:12AM0.70m
7:03PM0.46m
6:05AM0.79m
8:04PM0.53m
7:59AM0.85m
9:14PM0.56m
10:14AM0.78m
10:17PM0.56m
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
thunderstorm
thunderstorm
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:48
5:48
5:48
5:48
5:48
5:48
5:48
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:36
5:36
5:36
5:36
5:36
5:35
5:35
1
1
7
6
4
9
2
5
3
9
2
1
12
6
3
4
4
5
4
Temp °C
28
28
27
28
28
27
28
29
27
28
28
27
28
28
27
28
28
26
28
27
27
30
30
29
30
30
30
31
32
30
31
30
29
31
29
29
30
31
30
31
30
31
Swell 1
Height (m)
Direction
Period (s)
0.9
SW
16
0.9
SW
15
0.9
SW
15
1.1
SW
18
1.2
SW
18
1.1
SW
16
1.2
SW
16
1.2
SW
15
1
SW
14
0.9
SW
14
0.8
SW
13
0.7
SW
13
0.6
SW
13
0.6
SW
13
1.6
SE
8
0.7
SW
13
0.7
SW
13
1.1
SE
7
1.1
SE
7
1.2
SW
16
1.5
SE
8
Energy kJ
427
322
355
719
905
602
729
693
407
341
215
183
144
144
346
175
175
134
130
720
284
Swell 2
Height (m)
Direction
Period (s)
0.9
S
11
0.8
S
10
0.7
S
10
0.8
SW
14
0.6
SW
13
0.6
SW
13
0.4
SW
12
0.3
S
9
0.5
S
18
0.5
S
16
0.5
SSW
15
0.4
SSW
15
0.3
SSW
13
0.3
SSW
13
0.6
SW
14
0.4
SW
16
0.5
SW
16
0.6
SW
12
1.1
SW
14
0.8
SW
13
1.1
SW
15
Energy kJ
184
138
96
231
140
138
35
13
156
132
130
71
35
34
149
66
125
120
507
231
551
Swell 3
Height (m)
Direction
Period (s)
0.4
SW
21
0.6
SSW
20
0.7
SW
19
0.6
S
10
0.5
S
10
0.4
S
9
0.3
SSW
20
0.1
W
14
0.3
S
8
0.3
S
8
0.3
S
8
0.3
S
8
0.3
S
8
0.1
SW
18
0.2
S
12
0.1
SW
21
0.4
SW
19
0.5
SW
17
0.6
SW
18
0.6
SSE
9
0.9
SW
12
Energy kJ
117
256
384
70
45
26
75
4
12
12
11
12
12
12
11
18
95
147
192
55
256
Wind waves
Height (m)
Direction
Period (s)
1.4
ESE
7
1.4
ESE
6
1.4
SE
6
1.7
SE
7
1.6
SE
7
1.6
SE
7
1.7
SE
7
1.4
SE
7
1.4
SE
7
1.4
SE
7
1.4
SE
7
1.7
ESE
8
1.9
SE
8
1.9
SE
8
1.5
SE
8
1.4
SE
8
1.1
SE
7
Energy kJ
165
150
153
268
273
285
279
189
178
183
189
322
467
511
255
223
137
Nearest Offshore or Glassy
Rating
(10 max)
3
4
2
3
3
3
3
3
2
3
2
3
3
2
2
3
2
2
3
4
3
Distance (km)
8
230
18
25
230
230
18
230
8
18
230
18
25
230
230
18
230
6
230
230
18
Best forecast wave conditions in Central Java
Rating
(10 max)
3
2
3
3
2
3
3
3
3
2
3
Best forecast wave conditions in Indonesia
Rating
(10 max)
3
4
4
4
4
4
4
3
3
3
2
3
3
2
2
3
2
3
3
4
4
Header Global
Rating
(10 max)
9
6
7
5
5
6
7
7
6
5
5
5
6
5
5
5
7
9
9
9
9
  • 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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