Batu Karas Surf Break

Lat Long: 7.75° S 108.50° E

Batu Karas Surf Forecast and Surf Report

Issued: 6 am 15 Jul 2026 (local time)

Forecast update in  hr  min

Today's Batu Karas sea temperature is
27.1° C
0.3° 

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 15 Jul 2026:

  • Most powerful swell: Monday 20 Jul, 4AM (local time) - 7ft (2.2m), 17s period, SSW swell with 2,900 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 2.2m 17s and forecast to arrive on Monday (Jul 20) at 4AM. Winds are predicted to be cross-shore at the time the swell arrives.

Wave TypeTime (WIB) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 4AM (Mon 20th Jul)7ft (2.2m) 17s

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


Short Range Forecast

Moderate rain (total 10mm), heaviest on Wed night. Warm (max 26°C on Wed morning, min 24°C on Wed night). Wind will be generally light.

Days 4-6 Weather Summary

Moderate rain (total 13mm), heaviest on Sat morning. Warm (max 26°C on Sat morning, min 24°C on Sat night). Wind will be generally light.

Wednesday
15
Thursday
16
Friday
17
Saturday
18
Sunday
19
Monday
20
Tuesday
21
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
1
2
0
1
2
1
2
2
1
1
1
0
1
3
3
3
2
1
1
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.7
SSW
16
1.6
SSW
16
1.5
SSW
15
1.4
SW
15
1.4
SSW
14
1.4
SW
15
1.3
SSW
16
1.5
SW
15
1.4
SW
15
1.4
SW
14
1.4
SW
14
1.4
SW
13
1.3
SW
13
1.2
SSW
16
2.1
SSW
17
2.2
SSW
16
2.2
SSW
16
2
SSW
15
1.7
SSW
14
1.6
SSW
14
1.4
SSW
13
Wave Graph
Metric surfscale
Energy kJ
1415
1257
987
869
796
784
843
979
784
763
711
651
552
761
2737
2447
2417
1716
1159
955
700
Wind (km/h)
15
ESE
20
ESE
10
E
20
ESE
20
ESE
15
E
20
ESE
20
SE
15
ESE
20
E
15
SE
15
ESE
20
ESE
15
ESE
10
ESE
15
ESE
15
ESE
15
E
20
ESE
20
ESE
15
ESE
Wind State
cross
cross
cross
cross
cross-off
cross
cross
cross-off
cross
cross
cross-off
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
High Tide
9:15PM1.22m
8:58AM1.82m
9:55PM1.34m
9:44AM1.77m
10:34PM1.44m
10:27AM1.67m
11:12PM1.51m
11:08AM1.53m
11:50PM1.54m
11:48AM1.36m
00:27AM1.53m
12:27PM1.19m
1:06AM1.48m
Low Tide
3:07PM0.01m
2:35AM0.41m
3:46PM-0.00m
3:29AM0.36m
4:22PM0.02m
4:19AM0.35m
4:56PM0.09m
5:09AM0.36m
5:28PM0.17m
5:58AM0.41m
5:58PM0.28m
6:49AM0.47m
6:25PM0.38m
part cloud
clear
rain showers
thunderstorm
clear
rain showers
thunderstorm
clear
thunderstorm
rain showers
clear
rain showers
rain showers
part cloud
rain showers
rain showers
part cloud
rain showers
rain showers
clear
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:00
6:00
6:00
6:00
6:00
6:00
6:00
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:43
5:43
5:43
5:43
5:44
5:44
5:44
 mm
1
1
4
1
3
1
3
1
2
2
4
3
5
Temp °C
26
25
25
26
26
25
26
26
25
26
26
25
26
26
25
26
25
24
26
26
24
Feels °C
27
25
27
27
27
27
27
27
27
27
28
27
26
27
27
27
26
25
26
26
25
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
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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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