Batu Karas Surf Break

Batu Karas Surf Forecast and Surf Report

Lat Long: 7.75° S 108.50° E

Issued: 6 pm 13 Jun 2026 (local time)

Forecast update in  hr  min

Today's Batu Karas sea temperature is
28.8° 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 13 Jun 2026:

  • Most powerful swell: Sunday 14 Jun, 1AM (local time) - 7.5ft (2.3m), 16s period, SSW swell with 2,642 kJ wave energy.

Best Forecast Surf Conditions for Batu Karas this week:

The most powerful waves expected at Batu Karas in the next 16 days are 2.3m 16s and forecast to arrive on Sunday (Jun 14) at 1AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 6s period and expected on Friday (Jun 19) at 10AM.

Wave TypeTime (WIB) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 1AM (Sun 14th Jun)7.5ft (2.3m) 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

Heavy rain (total 39mm), heaviest during Sat night. Warm (max 28°C on Sun afternoon, min 24°C on Sat night). Wind will be generally light.

Days 5-7 Weather Summary

Heavy rain (total 23mm), heaviest during Tue afternoon. Warm (max 27°C on Wed morning, min 24°C on Wed night). Wind will be generally light.

Sat
13
Sunday
14
Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
2
2
3
2
1
1
1
1
1
2
2
1
1
1
1
0
1
0
0
1
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)
2.4
SSW
18
2.3
SSW
16
2.3
SSW
16
2.1
SSW
15
2
SSW
14
1.8
SSW
14
1.7
SSW
14
1.5
SSW
13
1.4
SSW
13
1.3
SSW
12
1.8
SSW
16
1.9
SSW
15
1.8
SSW
14
1.5
SSW
13
1.5
S
13
1.5
S
12
1.4
SSW
12
1.3
S
12
0.7
SSW
18
0.9
SSW
18
1.2
SW
16
Wave Graph
Metric surfscale
Energy kJ
3511
2642
2576
1928
1690
1249
1019
744
594
459
1576
1459
1259
767
787
717
598
480
289
534
767
Wind (km/h)
15
E
15
ENE
10
NE
15
ESE
10
ENE
20
ESE
20
ESE
15
ESE
15
E
15
ESE
15
ESE
15
E
15
ESE
5
NE
15
E
15
ESE
10
ENE
10
E
15
ESE
10
E
15
ESE
Wind State
cross
cross-on
cross-on
cross
cross-on
cross
cross
cross
cross
cross
cross
cross
cross
on
cross
cross
cross-on
cross-on
cross
cross-on
cross
High Tide
6:50PM1.00m
6:27AM1.73m
7:45PM1.05m
7:19AM1.82m
8:34PM1.10m
8:10AM1.87m
9:20PM1.16m
9:00AM1.88m
10:05PM1.21m
9:49AM1.83m
10:51PM1.27m
10:37AM1.72m
11:37PM1.32m
11:24AM1.57m
Low Tide
11:44PM0.55m
1:38PM0.09m
00:42AM0.50m
2:27PM-0.01m
1:37AM0.45m
3:14PM-0.05m
2:30AM0.41m
3:58PM-0.04m
3:23AM0.40m
4:42PM0.01m
4:18AM0.42m
5:23PM0.09m
5:15AM0.47m
light rain
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
rain showers
thunderstorm
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:54
5:56
5:56
5:56
5:56
5:56
5:56
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:36
5:36
5:36
5:36
5:37
5:37
5:37
5:37
 mm
1
7
2
2
8
5
3
5
6
5
3
1
4
4
2
3
1
5
2
Temp °C
27
25
27
28
26
27
27
26
26
26
26
27
27
25
27
27
26
27
27
26
27
Feels °C
29
28
30
31
29
29
29
28
28
28
28
29
29
28
29
29
29
29
29
29
30
Swell 1
Height (m)
Direction
Period (s)
2.4
SSW
18
2.3
SSW
16
2.3
SSW
16
2.1
SSW
15
2
SSW
14
1.8
SSW
14
1.7
SSW
14
1.5
SSW
13
1.4
SSW
13
1.3
SSW
12
1.8
SSW
16
1.9
SSW
15
1.8
SSW
14
1.5
SSW
13
1.5
S
13
1.5
S
12
1.4
SSW
12
1.3
S
12
0.9
S
9
0.9
SSW
18
1.2
SW
16
Energy kJ
3511
2642
2576
1928
1690
1249
1019
744
594
459
1576
1459
1259
767
787
717
598
480
123
534
767
Swell 2
Height (m)
Direction
Period (s)
1.4
ESE
6
0.1
S
20
0.4
SSW
19
0.8
SSW
18
0.3
S
12
0.8
S
8
0.1
W
8
0.1
S
24
0.2
SSW
22
0.5
SSW
20
0.8
SSW
12
0.9
S
10
0.8
S
8
Energy kJ
160
7
124
422
26
80
1
11
45
223
177
153
91
Swell 3
Height (m)
Direction
Period (s)
0.1
W
10
0.1
S
24
0.1
W
9
0.1
W
9
0.7
SSW
18
0.6
SSW
12
Energy kJ
2
11
2
1
289
96
Wind waves
Height (m)
Direction
Period (s)
0.7
SE
6
1.2
ESE
7
1.3
ESE
7
1.3
ESE
6
1.7
ESE
7
1.5
ESE
7
1.3
ESE
7
1.3
ESE
7
1.3
ESE
7
1.1
ESE
7
1.1
ESE
6
1.1
SE
6
1
ESE
6
1.1
ESE
6
0.9
ESE
6
0.8
ESE
6
1
ESE
6
0.9
ESE
6
1.3
ESE
6
1.5
ESE
7
Energy kJ
31
123
150
136
244
211
150
134
158
110
104
91
80
94
64
42
66
65
118
186
Nearest Offshore or Glassy
Rating
(10 max)
4
4
4
4
4
3
4
3
3
3
4
3
3
3
3
2
2
3
3
2
3
Distance (km)
230
6
6
230
6
230
519
230
230
230
230
18
230
6
18
230
8
230
387
18
230
Best forecast wave conditions in Central Java
Rating
(10 max)
4
4
4
3
3
3
2
2
Best forecast wave conditions in Indonesia
Rating
(10 max)
4
5
4
4
4
4
4
3
3
4
4
4
4
3
3
3
3
3
3
3
4
Header Global
Rating
(10 max)
5
5
5
5
4
5
5
4
5
4
5
4
8
4
8
9
9
9
6
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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