Batu Karas Surf Break

Lat Long: 7.75° S 108.50° E

Batu Karas Surf Forecast and Surf Report

Issued: 6 pm 25 Jul 2026 (local time)

Forecast update in  hr  min

Today's Batu Karas sea temperature is
26.4° C
0.6° 

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 25 Jul 2026:

  • Best quality surf: Sunday 26 Jul, 10AM (local time) - 7.5ft (2.3m), 9s period, SE swell with cross-offshore winds.
  • Most powerful swell: Saturday 1 Aug, 10AM (local time) - 6ft (1.8m), 18s period, SSW swell with 2,047 kJ wave energy.
  • Next surfable swell (1★+): Sunday 26 Jul, 10AM (local time) - 7.5ft (2.3m), 9s period with SE 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 (Jul 26) at 10AM. The primary swell is predicted to be 2.3m and 9s period with a secondary swell of 0.6m and 13s. 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 1.8m 18s and forecast to arrive on Saturday (Aug 01) at 10AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 11s period and expected on Saturday (Aug 01) at 4PM.

Wave TypeTime (WIB) & Date Wave Height & Period
Next good surf (1 star+)10AM (Sun 26th Jul)7.5ft (2.3m) 9s
Best Surf10AM (Sun 26th Jul)7.5ft (2.3m) 9s
Most Powerful10AM (Sat 1st Aug)6ft (1.8m) 18s

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


Short Range Forecast

Moderate rain (total 12mm), heaviest on Sun night. Warm (max 26°C on Sat afternoon, min 22°C on Sat night). Wind will be generally light.

Days 5-7 Weather Summary

Moderate rain (total 11mm), heaviest on Tue afternoon. Warm (max 26°C on Tue afternoon, min 23°C on Wed night). Wind will be generally light.

Sat
25
Sunday
26
Monday
27
Tuesday
28
Wednesday
29
Thursday
30
Friday
31
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
3
2
1
2
2
2
2
0
1
1
1
1
2
1
2
2
2
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2.1
SE
9
2.1
SE
9
2.3
SE
9
2.2
SE
9
2.3
SE
9
3
SE
10
1.9
ESE
10
1.7
ESE
10
2.5
ESE
8
2.3
SE
8
2.1
SE
8
1.2
SSW
14
1.9
SE
8
0.9
SSW
16
1.3
SSW
15
1.4
SSW
15
1.3
SSW
18
1.3
SSW
17
1.6
SSW
16
1.5
SSW
16
Wave Graph
Metric surfscale
Energy kJ
657
727
901
840
924
1462
669
528
844
751
571
542
392
376
758
773
943
952
1245
1081
Wind (km/h)
20
ESE
15
ENE
10
SE
15
SE
15
E
15
E
20
SE
10
NE
10
ESE
25
ESE
15
ENE
15
E
15
ESE
15
ENE
10
E
20
ESE
10
ENE
15
E
15
SE
10
E
Wind State
cross
cross-on
cross-off
cross-off
cross-on
cross
cross-off
cross-on
cross
cross
cross-on
cross-on
cross
cross-on
cross
cross
cross-on
cross
cross-off
cross-on
High Tide
6:34PM0.78m
5:13AM1.30m
7:41PM0.85m
6:21AM1.36m
8:12PM0.94m
7:13AM1.44m
8:39PM1.03m
7:54AM1.51m
9:04PM1.13m
8:31AM1.58m
9:30PM1.23m
9:04AM1.61m
9:55PM1.33m
Low Tide
9:23PM0.75m
1:11PM0.43m
11:25PM0.76m
1:52PM0.34m
00:41AM0.71m
2:24PM0.26m
1:33AM0.64m
2:52PM0.20m
2:15AM0.57m
3:18PM0.15m
2:53AM0.51m
3:42PM0.14m
3:29AM0.46m
clear
clear
clear
clear
rain showers
rain showers
part cloud
rain showers
clear
rain showers
rain showers
rain showers
clear
rain showers
part cloud
part cloud
rain showers
thunderstorm
part cloud
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:00
5:58
5:58
5:58
5:58
5:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:44
5:45
5:45
5:45
5:45
5:45
5:45
 mm
4
1
7
1
4
1
2
2
1
2
Temp °C
26
24
24
25
24
25
26
24
25
26
24
25
26
24
26
25
24
26
25
25
Feels °C
25
25
26
26
25
26
26
26
27
26
26
27
27
26
27
26
27
28
27
28
  • 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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