Batu Karas Surf Break

Batu Karas Surf Forecast and Surf Report

Lat Long: 7.75° S 108.50° E

Issued: 12 pm 01 Jul 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 1 Jul 2026:

  • Best quality surf: Saturday 4 Jul, 1PM (local time) - 6ft (1.8m), 16s period, S swell with cross-offshore winds.
  • Most powerful swell: Wednesday 8 Jul, 1PM (local time) - 7ft (2.2m), 16s period, SSW swell with 2,447 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 1 Jul, 10PM (local time) - 5ft (1.5m), 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 Wednesday (Jul 01) at 10PM. The primary swell is predicted to be 1.5m and 13s period with a secondary swell of 1.1m and 17s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Batu Karas in the next 16 days are 2.2m 16s and forecast to arrive on Wednesday (Jul 08) at 1PM. 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 Sunday (Jul 05) at 10PM.

Wave TypeTime (WIB) & Date Wave Height & Period
Next good surf (1 star+)10PM (Wed 1st Jul)5ft (1.5m) 13s
Best Surf 1PM (Sat 4th Jul)6ft (1.8m) 16s
Most Powerful 1PM (Wed 8th Jul)7ft (2.2m) 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

Mostly dry. Warm (max 27°C on Wed morning, min 22°C on Thu night). Wind will be generally light.

Days 4-6 Weather Summary

Moderate rain (total 10mm), heaviest on Sat night. Warm (max 27°C on Sun morning, min 25°C on Sat afternoon). Wind will be generally light.

Wednesday
1
Thursday
2
Friday
3
Saturday
4
Sunday
5
Monday
6
Tuesday
7
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
3
3
3
2
3
2
2
2
2
3
3
2
1
1
2
1
1
1
1
1
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.9
SSW
14
1.8
SSW
14
1.4
SSW
13
1.8
SSW
15
1.6
SSW
14
1.7
S
13
2
SSW
15
2
SSW
14
1
S
19
1.6
S
17
1.9
SSW
16
1.9
SSW
15
2.1
SSW
14
2.1
S
14
1.9
S
14
1.2
SSW
16
1.5
SSW
16
1.3
SSW
16
1.4
SSW
16
1.6
SSW
16
1.5
SSW
15
Wave Graph
Metric surfscale
Energy kJ
1512
1307
669
1452
926
1049
1613
1591
685
1491
1845
1479
1704
1650
1304
751
1136
881
957
1273
1014
Wind (km/h)
15
SE
10
SE
5
E
5
ESE
10
SSE
10
NNE
10
ESE
15
ESE
10
ENE
10
ESE
20
SE
10
E
15
ESE
20
ESE
15
E
25
ESE
20
ESE
20
ESE
20
E
20
ESE
15
E
Wind State
cross-off
cross-off
glassy
cross
cross-off
on
cross
cross
cross-on
cross
cross-off
cross-on
cross
cross
cross-on
cross
cross
cross
cross
cross
cross
High Tide
9:47PM1.13m
9:15AM1.60m
10:18PM1.18m
9:48AM1.59m
10:49PM1.24m
10:21AM1.55m
11:20PM1.29m
10:53AM1.48m
11:50PM1.33m
11:27AM1.39m
00:22AM1.38m
12:06PM1.27m
00:59AM1.42m
Low Tide
3:36PM0.15m
2:56AM0.55m
4:07PM0.14m
3:34AM0.54m
4:35PM0.16m
4:12AM0.55m
5:02PM0.19m
4:51AM0.56m
5:28PM0.23m
5:33AM0.57m
5:54PM0.29m
6:21AM0.57m
6:22PM0.36m
clear
clear
clear
clear
clear
part cloud
part cloud
clear
part cloud
part cloud
part cloud
rain showers
clear
clear
thunderstorm
thunderstorm
clear
thunderstorm
clear
clear
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:58
5:58
5:58
5:58
5:58
6:00
6:00
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:39
5:39
5:39
5:39
5:40
5:40
5:40
 mm
1
4
2
3
4
Temp °C
27
26
24
26
26
24
26
26
24
26
26
25
27
27
26
27
27
25
27
26
25
Feels °C
28
27
27
27
27
26
27
28
26
28
27
27
29
28
28
28
28
26
27
26
26
Swell 1
Height (m)
Direction
Period (s)
1.9
SSW
14
1.8
SSW
14
1.4
SSW
13
1.8
SSW
15
1.6
SSW
14
1.7
S
13
2
SSW
15
2
SSW
14
1.7
S
11
1.8
S
11
1.9
SSW
16
1.9
SSW
15
2.1
SSW
14
2.1
S
14
1.9
S
14
1.2
SSW
13
1.5
SSW
16
1.3
SSW
16
1.4
SSW
16
1.6
SSW
16
1.5
SSW
15
Energy kJ
1512
1307
669
1452
926
1049
1613
1591
651
730
1845
1479
1704
1650
1304
447
1136
881
957
1273
1014
Swell 2
Height (m)
Direction
Period (s)
0.4
SW
19
0.6
SSW
18
1
SSW
16
0.2
WNW
12
1.1
SW
16
1
SW
16
0.1
W
11
0.3
S
20
1
SSW
14
1.6
S
17
1.5
S
10
0.4
SSW
20
0.1
W
10
0.6
SSW
18
1.1
SSW
18
1.2
SSW
16
0.1
W
9
0.4
S
8
0.1
W
18
0.2
WNW
11
1.1
SSW
18
Energy kJ
131
211
539
14
610
515
2
68
425
1491
495
149
2
257
705
751
2
21
6
13
745
Swell 3
Height (m)
Direction
Period (s)
0.1
W
16
0.1
W
11
0.3
SW
18
0.2
ESE
5
0.1
W
11
0.1
W
10
1
S
19
0.5
SW
15
0.1
SW
21
0.1
W
10
0.1
W
16
0.1
W
10
0.1
W
9
0.1
W
9
0.2
WNW
12
0.2
S
11
0.1
S
13
0.8
S
8
Energy kJ
5
3
49
2
2
2
685
104
18
2
5
2
2
2
15
9
3
74
Wind waves
Height (m)
Direction
Period (s)
0.8
ESE
5
1.3
SSE
10
0.9
ESE
6
1
ESE
6
1.7
SE
7
1.4
SE
7
1.3
SE
7
1.6
SE
7
1.5
SE
7
1.2
SE
7
Energy kJ
33
332
47
66
253
183
159
233
200
127
Nearest Offshore or Glassy
Rating
(10 max)
3
3
3
4
3
4
4
4
4
4
4
4
4
4
4
4
4
4
3
4
4
Distance (km)
0
0
0
519
0
6
18
519
6
230
519
8
235
519
18
233
519
230
233
519
18
Best forecast wave conditions in Central Java
Rating
(10 max)
3
3
4
3
4
4
4
4
4
4
Best forecast wave conditions in Indonesia
Rating
(10 max)
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
Header Global
Rating
(10 max)
5
5
8
7
5
7
5
6
5
5
5
5
9
7
6
7
9
7
5
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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