Batu Karas Surf Break

Lat Long: 7.75° S 108.50° E

Batu Karas Surf Forecast and Surf Report

Issued: 12 am 25 Oct 2026 (local time)

Forecast update in  hr  min

Today's Batu Karas sea temperature is
25.4°C
2.1° 

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 Oct 2026:

  • Best quality surf: Sunday 25 Oct, 10PM (local time) - 8ft (2.4m), 14s period, SSW swell with cross-offshore winds.
  • Most powerful swell: Sunday 25 Oct, 10AM (local time) - 8ft (2.4m), 15s period, SSW swell with 2,449 kJ wave energy.
  • Next surfable swell (1★+): Sunday 25 Oct, 10PM (local time) - 8ft (2.4m), 14s 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 (Oct 25) at 10PM. The primary swell is predicted to be 2.4m and 14s 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 2.4m 15s and forecast to arrive on Sunday (Oct 25) 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 1.3m 6s period and expected on Wednesday (Oct 28) at 10PM.

Wave TypeTime (WIB) & Date Wave Height & Period
Next good surf (1 star+)10PM (Sun 25th Oct)8ft (2.4m) 14s
Best Surf10PM (Sun 25th Oct)8ft (2.4m) 14s
Most Powerful10AM (Sun 25th Oct)8ft (2.4m) 15s

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


Short Range Forecast

Heavy rain (total 29mm), heaviest during Tue afternoon. Warm (max 27°C on Sun morning, min 25°C on Sat night). Wind will be generally light.

Days 4-6 Weather Summary

Heavy rain (total 39mm), heaviest during Wed afternoon. Warm (max 27°C on Thu afternoon, min 24°C on Wed night). Wind will be generally light.

Sunday
25
Monday
26
Tuesday
27
Wednesday
28
Thursday
29
Friday
30
Saturday
31
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
4
3
3
3
3
2
2
2
2
2
1
1
2
1
1
0
1
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)
2.4
SSW
15
2.4
SSW
14
2.4
SSW
14
2.2
S
13
2.2
S
13
1.5
SSW
12
1.6
S
11
1.6
S
11
1.9
S
12
1.8
S
11
1.7
S
11
1.7
S
11
1.6
S
11
1.4
S
11
1.3
SSE
11
1.1
S
10
1
S
10
0.7
SW
15
0.9
SW
14
1
SW
14
1
SW
13
Wave Graph
Metric surfscale
Energy kJ
2449
2383
2190
1708
1631
699
588
585
1005
814
713
688
606
474
407
239
190
233
350
382
345
Wind (km/h)
15
ESE
20
SSE
10
SE
10
SE
15
SSE
5
SSE
15
SE
15
SSE
5
ESE
10
SSE
10
SE
0
SE
15
ESE
15
SE
5
ENE
10
SE
15
SE
5
ENE
15
ESE
15
SE
5
NNE
Wind State
cross
cross-off
cross-off
cross-off
cross-off
glassy
cross-off
cross-off
cross
cross-off
cross-off
glassy
cross
cross-off
glassy
cross-off
cross-off
cross-on
cross
cross-off
on
High Tide
7:25AM1.29m
7:23PM1.63m
8:01AM1.33m
7:53PM1.76m
8:37AM1.33m
8:26PM1.86m
9:13AM1.31m
9:01PM1.90m
9:50AM1.26m
9:39PM1.89m
10:29AM1.19m
10:19PM1.81m
11:13AM1.12m
11:03PM1.68m
Low Tide
1:07PM0.41m
1:57AM0.15m
1:36PM0.36m
2:32AM0.02m
2:06PM0.33m
3:09AM-0.06m
2:38PM0.31m
3:47AM-0.07m
3:12PM0.32m
4:28AM-0.01m
3:48PM0.36m
5:13AM0.09m
4:28PM0.44m
part cloud
rain showers
rain showers
thunderstorm
thunderstorm
rain showers
thunderstorm
thunderstorm
rain showers
thunderstorm
mod rain
rain showers
part cloud
thunderstorm
mod rain
thunderstorm
thunderstorm
thunderstorm
clear
rain showers
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:20
—
—
5:18
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—
5:18
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—
5:18
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—
5:18
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—
5:18
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—
5:18
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—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
5:39
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—
5:39
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—
5:39
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—
5:39
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—
5:39
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5:39
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5:39
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 mm
—
1
5
1
4
7
2
5
6
5
8
8
—
1
9
1
1
3
—
1
1
Temp °C
27
26
25
26
26
25
26
26
25
26
26
25
26
27
25
27
27
26
27
27
26
Feels °C
29
27
27
28
28
29
28
29
29
29
29
30
29
29
29
31
29
30
29
29
30
  • 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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