Batu Karas surf break

Batu Karas surfForecast / Java – Central / Indonesia

information circle16 Day Weather and Surf, issued 12 pm Sunday 29 Mar 2026 WIB
Forecast update in hr  min  s Forecast update imminent
Batu Karas surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Batu Karas sea temperature is
29.2° C
(Which is normal for this time of year)

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 Monday (Mar 30) at 4AM. The primary swell is predicted to be 0.8m and 11s period with a secondary swell of 0.9m and 10s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Batu Karas in the next 16 days are 1.1m 14s and forecast to arrive on Sunday (Apr 05) at 1PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 6s period and expected on Wednesday (Apr 01) at 7PM.

Wave TypeTime (WIB) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Mon 30th Mar)3ft (0.9m) 10s
Best Surf 4AM (Wed 1st Apr)3ft (0.9m) 14s
Most Powerful 1PM (Sun 5th Apr)3.5ft (1.1m) 14s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast Moderate rain (total 13mm), heaviest on Mon night. Warm (max 28°C on Sun morning, min 25°C on Mon night). Wind will be generally light.

Days 3-6 Weather Summary Heavy rain (total 29mm), heaviest during Thu night. Warm (max 28°C on Wed morning, min 25°C on Wed night). Wind will be generally light.

Sunday
29
Monday
30
Tuesday
31
Wednesday
01
Thursday
02
Friday
03
Saturday
04
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
1
1
0
1
1
0
1
0
1
0
0
1
1
2
1
2
2
2
1
1
2
Swell
Height Map
Wave Height (m) & direction (?)
1.1
S
1
S
0.8
SSW
0.8
S
0.8
S
0.8
SSE
0.9
SSW
0.6
SW
0.9
SSW
0.9
SW
0.9
SW
0.8
SSW
0.8
SSW
1
S
1
S
1
S
1.1
S
1
S
1
S
0.8
SSW
0.9
SSW
Period(s) (?)111112101010151514141413141312121211111414
Wave
Graph
(?)Metric surfscale
Energy kJ (?)284231171128132128393176367297268229269361309289341247236246299
Wind
(km/h)
10
E
15
SE
5
NNE
10
SE
15
SE
5
NNE
5
E
15
ESE
5
NE
10
ESE
15
ESE
5
ENE
10
ENE
10
SSE
10
NE
5
ESE
15
SE
5
NNE
10
NE
5
S
10
WSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscross-
off
oncross-
off
cross-
off
oncross-
on
crossglasscrosscrosscross-
on
cross-
on
cross-
off
onglasscross-
off
glasscross-
on
offcross-
off
High Tide
/ height (m)
5:42PM
1.27
7:01AM
1.18
6:49PM
1.35
7:31AM
1.35
7:35PM
1.41
7:58AM
1.50
8:13PM
1.44
8:24AM
1.61
8:46PM
1.45
8:49AM
1.69
9:17PM
1.42
9:15AM
1.73
9:46PM
1.37
Low Tide
/ height (m)
11:23AM
0.75
12:36AM
0.42
12:43PM
0.60
1:14AM
0.36
1:31PM
0.43
1:45AM
0.32
2:10PM
0.29
2:12AM
0.29
2:44PM
0.18
2:38AM
0.28
3:15PM
0.11
3:02AM
0.29
3:45PM
0.08
3:25AM
0.31
Sunday
29
Monday
30
Tuesday
31
Wednesday
01
Thursday
02
Friday
03
Saturday
04
Sunrise5:48--5:48--5:48--5:48--5:48--5:48--5:48--
Sunset-5:52--5:52--5:51--5:51--5:50--5:50--5:49-
part cloud
part cloud
thunderstorm
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
rain showers
thunderstorm
thunderstorm
part cloud
part cloud
part cloud
mod rain
thunderstorm
Rain (mm)
--2-2711-14614121---99
Temp. °C282826282826282826282827272626272726312826
Feels °C (?)323030323130313129313031312930312930323229
  • Map Icons:
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  • 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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