Batu Karas surf break

Batu Karas surfForecast / Java – Central / Indonesia

information circle12 Day Weather and Surf, issued 6 am Friday 05 Dec 2025 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
29.6° C
(Which is 1.2°C warmer than normal for this time of year)


Best Forecast Surf Conditions for Batu Karas this week:

The surf forecast for Batu Karas over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Dec 05) at 10AM. The primary swell is predicted to be 0.9m and 13s period with a secondary swell of 0.6m and 5s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Batu Karas in the next 12 days are 1.3m 14s and forecast to arrive on Thursday (Dec 11) 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 0.8m 5s period and expected on Saturday (Dec 06) at 1AM.

Wave TypeTime (WIB) & Date Wave Height & Period
Next good surf (1 star+)10AM (Fri 5th Dec)3ft (0.9m) 13s
Best Surf 1PM (Sat 6th Dec)3ft (0.9m) 12s
Most Powerful 4PM (Thu 11th Dec)4.5ft (1.3m) 14s

Table - best surf conditions forecast for Batu Karas over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Heavy rain (total 29mm), heaviest during Fri night. Warm (max 28°C on Fri afternoon, min 25°C on Fri night). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Warm (max 28°C on Mon morning, min 24°C on Wed night). Wind will be generally light.

Friday
05
Saturday
06
Sunday
07
Monday
08
Tuesday
09
Wednesday
10
Thursday
11
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
1
1
1
1
2
2
2
2
2
2
2
2
2
2
1
2
2
1
2
2
2
Swell
Height Map
Wave Height (m) & direction (?)
0.9
SW
0.9
SW
0.9
SW
0.9
SW
0.9
SSW
1.3
SSW
1.2
SSW
1.2
SSW
1
SSW
1.3
SSW
0.9
SW
0.9
SW
1
SW
1.1
SW
1.1
SW
1
SW
1
SW
1
SW
1.2
SSW
1.3
SSW
1.3
SSW
Period(s) (?)131313121413121212121615141414141414141413
Wave
Graph
(?)Metric surfscale
Energy kJ (?)277277234223297536417390294422416365412459440384357368501644528
Wind
(km/h)
5
S
10
SE
0
SSE
0
NNE
5
SE
0
NNE
0
W
10
S
5
W
10
SSW
15
SSW
10
SSW
15
SSW
15
SW
5
WNW
10
SSW
10
SSW
5
NW
5
SSE
15
SSE
5
SE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
offcross-
off
glassglasscross-
off
glassglasscross-
off
glassoffoffoffoffoffcrossoffoffcrosscross-
off
cross-
off
glass
High Tide
/ height (m)
7:46PM
1.90
8:54AM
1.17
8:33PM
1.93
9:38AM
1.19
9:19PM
1.89
10:21AM
1.21
10:05PM
1.80
11:07AM
1.23
10:50PM
1.66
11:54AM
1.24
11:36PM
1.49
12:45PM
1.25
12:24AM
1.30
Low Tide
/ height (m)
1:16PM
0.43
2:47AM
-0.09
2:04PM
0.39
3:32AM
-0.09
2:51PM
0.38
4:15AM
-0.05
3:40PM
0.40
4:58AM
0.04
4:30PM
0.46
5:40AM
0.15
5:26PM
0.54
6:22AM
0.27
6:29PM
0.63
Friday
05
Saturday
06
Sunday
07
Monday
08
Tuesday
09
Wednesday
10
Thursday
11
Sunrise5:18--5:20--5:20--5:20--5:20--5:20--5:20--
Sunset-5:52--5:52--5:52--5:53--5:53--5:54--5:54-
thunderstorm
thunderstorm
thunderstorm
light rain
part cloud
rain showers
part cloud
part cloud
thunderstorm
part cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
thunderstorm
rain showers
Rain (mm)
31171-2--5----------34
Temp. °C272826262726272727282826282726272726272727
Feels °C (?)313130303130303030303029292829292830302931
  • 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

Latest Updates

submit an eyeball surf report

Quick surf report for Batu Karas:

join our community of surf reporters

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Batu Karas surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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 12 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.

Nearest locationNearest
Nearest locationNearest
Nearest locationNearest