Batu Karas Surf Break

Lat Long: 7.75° S 108.50° E

Batu Karas Surf Forecast and Surf Report

Issued: 6 am 30 Oct 2026 (local time)

Forecast update in  hr  min

Today's Batu Karas sea temperature is
25.4°C
2.3° 

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 30 Oct 2026:

  • Best quality surf: Thursday 5 Nov, 10AM (local time) - 5.5ft (1.7m), 13s period, S swell with cross-offshore winds.
  • Most powerful swell: Wednesday 4 Nov, 10PM (local time) - 6ft (1.8m), 14s period, S swell with 1,285 kJ wave energy.
  • Next surfable swell (1★+): Friday 30 Oct, 4PM (local time) - 2ft (0.6m), 16s period with SW 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 Friday (Oct 30) at 4PM. The primary swell is predicted to be 0.9m and 10s period with a secondary swell of 0.6m and 16s. 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 14s and forecast to arrive on Wednesday (Nov 04) at 10PM. 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 Friday (Oct 30) at 4PM.

Wave TypeTime (WIB) & Date Wave Height & Period
Next good surf (1 star+) 4PM (Fri 30th Oct)2ft (0.6m) 16s
Best Surf10AM (Thu 5th Nov)5.5ft (1.7m) 13s
Most Powerful10PM (Wed 4th Nov)6ft (1.8m) 14s

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


Short Range Forecast

Heavy rain (total 23mm), heaviest during Fri afternoon. Warm (max 27°C on Fri morning, min 24°C on Fri night). Wind will be generally light.

Days 4-6 Weather Summary

Moderate rain (total 18mm), heaviest on Mon morning. Warm (max 27°C on Tue morning, min 25°C on Mon night). Wind will be generally light.

Friday
30
Saturday
31
Sunday
1
Monday
2
Tuesday
3
Wednesday
4
Thursday
5
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
1
1
0
1
0
0
0
0
0
1
0
2
1
0
1
2
3
2
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1
S
10
0.6
SW
16
0.7
SW
15
0.9
SW
14
1
SW
14
1
SW
13
1
SW
13
0.8
SW
13
0.8
SW
12
0.9
SW
12
1.1
SW
12
0.9
SSW
16
1.2
SSW
15
1.4
SSW
14
1.3
SSW
13
1.5
SSW
13
0.9
SSW
15
1.7
S
14
1.7
S
13
1.6
S
13
1.4
SSW
12
Wave Graph
Metric surfscale
Energy kJ
202
161
233
350
382
340
325
235
184
236
309
446
573
756
586
710
309
1083
971
825
589
Wind (km/h)
15
SE
15
ESE
10
E
15
ESE
15
ESE
10
ESE
20
E
20
ESE
10
ESE
20
ESE
15
ESE
10
E
20
ESE
15
SE
10
E
20
ESE
15
SE
10
ESE
15
SE
15
SSE
10
SE
Wind State
cross-off
cross-off
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross-off
cross
cross
cross-off
cross
cross-off
cross-off
cross-off
High Tide
10:29AM1.19m
10:19PM1.81m
11:13AM1.12m
11:03PM1.68m
12:05PM1.05m
11:54PM1.51m
1:17PM1.02m
1:01AM1.32m
3:00PM1.06m
2:42AM1.17m
4:35PM1.18m
4:39AM1.13m
5:33PM1.33m
Low Tide
3:48PM0.36m
5:13AM0.09m
4:28PM0.44m
6:03AM0.23m
5:16PM0.56m
7:04AM0.36m
6:27PM0.69m
8:21AM0.47m
8:36PM0.76m
9:46AM0.52m
10:47PM0.68m
10:55AM0.53m
00:02AM0.52m
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
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thunderstorm
thunderstorm
part cloud
thunderstorm
thunderstorm
clear
thunderstorm
thunderstorm
part cloud
thunderstorm
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<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:18
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5:18
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5:18
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5:18
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5:16
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5:16
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5:16
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<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
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5:39
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5:39
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5:40
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5:40
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5:40
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5:40
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5:40
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 mm
1
4
6
2
2
4
1
—
3
5
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4
1
—
4
1
—
3
—
—
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Temp °C
27
26
25
26
26
26
26
26
26
26
26
26
27
27
26
27
26
26
27
27
26
Feels °C
30
28
28
28
28
29
28
28
28
27
28
30
29
30
29
29
28
29
30
30
30
  • 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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