Batu Karas Surf Break

Lat Long: 7.75° S 108.50° E

Batu Karas Surf Forecast and Surf Report

Issued: 6 am 23 Oct 2026 (local time)

Forecast update in  hr  min

Today's Batu Karas sea temperature is
25.0°C
2.4° 

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 23 Oct 2026:

  • Best quality surf: Friday 23 Oct, 4PM (local time) - 10ft (3.0m), 17s period, SSW swell with cross-offshore winds.
  • Most powerful swell: Friday 23 Oct, 4PM (local time) - 10ft (3.0m), 17s period, SSW swell with 5,128 kJ wave energy.
  • Next surfable swell (1★+): Friday 23 Oct, 4PM (local time) - 10ft (3.0m), 17s 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 Friday (Oct 23) at 4PM. The primary swell is predicted to be 3.0m and 17s 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 Friday (Oct 23) at 4PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 6s period and expected on Saturday (Oct 24) at 7PM.

Wave TypeTime (WIB) & Date Wave Height & Period
Next good surf (1 star+) 4PM (Fri 23rd Oct)10ft (3.0m) 17s
Best Surf 4PM (Fri 23rd Oct)10ft (3.0m) 17s
Most Powerful 4PM (Fri 23rd Oct)10ft (3.0m) 17s

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


Short Range Forecast

Light rain (total 8mm), mostly falling on Fri night. Warm (max 27°C on Fri morning, min 24°C on Sun night). Wind will be generally light.

Days 4-6 Weather Summary

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

Friday
23
Saturday
24
Sunday
25
Monday
26
Tuesday
27
Wednesday
28
Thursday
29
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
4
3
4
3
3
1
4
3
2
2
3
3
2
2
2
2
2
2
2
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
3
SSW
17
3
SSW
17
3
SSW
16
2.5
SSW
16
2.5
SSW
16
2.3
SSW
16
2.1
SSW
15
2.3
SSW
14
2.2
SSW
14
2.1
S
13
2.1
S
13
1.5
SSW
12
1.6
S
11
1.6
S
11
1.8
S
13
1.8
S
11
1.7
S
11
1.6
S
11
1.5
S
10
1.5
S
10
1.4
S
11
Wave Graph
Metric surfscale
Energy kJ
4812
5128
3944
3037
3412
2582
1873
2197
1886
1585
1491
688
577
575
1028
814
698
596
489
486
441
Wind (km/h)
15
SE
15
SE
10
ESE
15
SE
15
SE
10
ESE
15
ESE
15
SE
5
ENE
15
SE
15
SE
10
SE
15
SE
15
SSE
5
ESE
10
SE
15
SE
5
ESE
10
SE
15
SE
5
NE
Wind State
cross-off
cross-off
cross
cross-off
cross-off
cross
cross
cross-off
glassy
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross-off
cross-off
glassy
cross-off
cross-off
glassy
High Tide
6:33PM1.33m
6:46AM1.24m
6:57PM1.48m
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
Low Tide
12:08PM0.51m
00:48AM0.49m
12:38PM0.46m
1:22AM0.31m
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
clear
clear
thunderstorm
part cloud
clear
rain showers
part cloud
part cloud
rain showers
part cloud
thunderstorm
rain showers
thunderstorm
thunderstorm
rain showers
thunderstorm
thunderstorm
thunderstorm
part cloud
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:20
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5:20
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—
5:20
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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>
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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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5:39
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 mm
—
—
3
—
—
4
—
—
1
—
2
5
1
3
4
4
5
15
—
2
5
Temp °C
27
27
26
27
27
26
27
26
25
27
26
25
26
26
25
26
26
25
26
26
25
Feels °C
29
29
30
28
28
29
28
27
28
29
28
28
28
28
29
29
28
29
29
29
29
  • 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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