Batu Karas Surf Break

Lat Long: 7.75° S 108.50° E

Batu Karas Surf Forecast and Surf Report

Issued: 12 pm 14 Aug 2026 (local time)

Forecast update in  hr  min

Today's Batu Karas sea temperature is
26.4° C
0.0° 

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 14 Aug 2026:

  • Best quality surf: Thursday 20 Aug, 4PM (local time) - 8ft (2.5m), 16s period, SSW swell with cross-offshore winds.
  • Most powerful swell: Wednesday 19 Aug, 1PM (local time) - 10ft (3.0m), 17s period, SSW swell with 5,990 kJ wave energy.
  • Next surfable swell (1★+): Sunday 16 Aug, 4PM (local time) - 5.5ft (1.7m), 15s period with SSW 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 Sunday (Aug 16) at 4PM. The primary swell is predicted to be 1.7m and 15s period. 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 3.0m 17s and forecast to arrive on Wednesday (Aug 19) at 1PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 6s period and expected on Saturday (Aug 15) at 10AM.

Wave TypeTime (WIB) & Date Wave Height & Period
Next good surf (1 star+) 4PM (Sun 16th Aug)5.5ft (1.7m) 15s
Best Surf 4PM (Thu 20th Aug)8ft (2.5m) 16s
Most Powerful 1PM (Wed 19th Aug)10ft (3.0m) 17s

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


Short Range Forecast

Mostly dry. Warm (max 25°C on Fri morning, min 22°C on Sat night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 26°C on Mon morning, min 22°C on Mon night). Wind will be generally light.

Friday
14
Saturday
15
Sunday
16
Monday
17
Tuesday
18
Wednesday
19
Thursday
20
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
2
3
2
3
3
2
3
2
1
2
3
3
3
3
3
3
3
3
4
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2.5
S
15
2.3
SSW
14
1.5
SSW
18
2.4
SSW
17
2.3
SSW
16
2.2
SSW
16
1.9
SSW
15
1.7
SSW
15
1.6
SSW
14
1.4
SSW
14
1.4
SSW
13
1.3
SSW
17
2.4
SSW
16
2.1
SSW
16
2.5
SSW
19
3
SSW
18
3
SSW
17
3
SSW
16
3
SSW
16
2.5
SSW
16
2.3
SSW
15
Wave Graph
Metric surfscale
Energy kJ
2792
2098
1491
3127
2610
2398
1690
1275
996
811
683
984
2821
2228
5163
5555
5853
5093
3924
3113
2530
Wind (km/h)
15
ESE
20
ESE
15
ESE
15
ESE
20
SE
10
ENE
10
ESE
15
SE
5
ESE
15
E
15
SE
5
ENE
15
ESE
15
SE
10
ENE
10
ESE
15
SE
10
ENE
15
ESE
15
SE
10
E
Wind State
cross
cross
cross
cross
cross-off
cross-on
cross
cross-off
cross
cross
cross-off
cross-on
cross
cross-off
cross-on
cross
cross-off
cross-on
cross
cross-off
cross-on
High Tide
9:32PM1.52m
9:32AM1.69m
10:05PM1.62m
10:10AM1.60m
10:37PM1.67m
10:45AM1.47m
11:08PM1.67m
11:18AM1.32m
11:38PM1.61m
11:49AM1.16m
00:09AM1.53m
12:20PM1.01m
00:43AM1.42m
Low Tide
3:22PM0.05m
3:26AM0.26m
3:52PM0.07m
4:08AM0.22m
4:20PM0.12m
4:49AM0.23m
4:46PM0.20m
5:28AM0.28m
5:11PM0.28m
6:07AM0.36m
5:32PM0.38m
6:49AM0.45m
5:51PM0.47m
part cloud
clear
part cloud
part cloud
clear
part cloud
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
part cloud
part cloud
clear
part cloud
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:54
5:54
5:54
5:54
5:54
5:52
5:52
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:45
5:45
5:45
5:45
5:45
5:45
5:45
 mm
Temp °C
25
25
24
25
25
23
25
25
25
26
25
24
26
25
24
25
25
24
26
25
23
Feels °C
26
25
26
25
25
25
26
26
28
27
26
28
27
26
27
27
26
26
27
27
25
  • 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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