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Surf Forecasts:

Batu Karas surf break

Batu Karas surfForecast / Java – Central / Indonesia

information circle12 Day Weather and Surf, issued 12 pm Sunday 14 Sep 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
27.4° C
 (Which is 1.0°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 Sunday (Sep 14) at 4PM. The primary swell is predicted to be 1.4m and 14s period with a secondary swell of 0.4m and 9s. Another secondary swell of 0.8m and 7s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Batu Karas in the next 12 days are 2.3m 16s and forecast to arrive on Tuesday (Sep 16) at 7PM. 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 Monday (Sep 15) at 7AM.

Wave TypeTime (WIB) & Date Wave Height & Period
Next good surf (1 star+) 4PM (Sun 14th Sep)4.5ft (1.4m) 14s
Best Surf 1PM (Sun 21st Sep)7ft (2.2m) 16s
Most Powerful 7PM (Tue 16th Sep)7.5ft (2.3m) 16s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Heavy rain (total 43mm), heaviest during Mon night. Warm (max 27°C on Sun morning, min 25°C on Sun night). Wind will be generally light.

Days 3-6 Weather Summary Heavy rain (total 70mm), heaviest during Thu morning. Warm (max 26°C on Wed morning, min 24°C on Wed night). Wind will be generally light.

Sunday
14
Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
1
2
1
1
2
1
2
3
3
2
2
3
2
2
1
1
1
1
1
1
3
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.4
SW
1.4
SW
1.3
SW
1.4
SW
1.4
SW
1.4
SW
1.7
SSW
2.1
SSW
2.3
SSW
2.2
SSW
2.2
SSW
2.2
SSW
1.9
SSW
1.9
SSW
1.3
SSW
1
SSW
0.8
SSW
1.2
SSW
1.3
SSW
1.7
SSW
2.1
SSW
Period(s) (?)141414141413171615151414131312121716171616
Wave
Graph
(?)Metric surfscale
Energy kJ (?)8218106588337657111533227424512038195619371294119250130936467492115242028
Wind
(km/h)
15
ESE
15
ESE
10
ESE
20
SE
15
SE
15
ESE
20
SE
20
SE
15
ESE
15
ESE
15
ESE
15
ESE
15
ESE
15
ESE
10
E
15
ESE
15
ESE
10
ENE
15
ESE
20
ESE
15
E
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscross-
off		crosscross-
off		cross-
off		crosscross-
off		cross-
off		crosscrosscrosscrosscrosscrosscross-
on		crosscrosscross-
on		crosscrosscross
High Tide
/ height (m)
12:00PM
1.06
12:13AM
1.61
12:50PM
0.89
1:08AM
1.44
2:31PM
0.77
2:40AM
1.30
6:20PM
0.86
4:56AM
1.27
7:01PM
1.03
6:21AM
1.35
7:29PM
1.19
7:13AM
1.42
7:54PM
1.35
Low Tide
/ height (m)
5:24PM
0.40
7:19AM
0.40
5:55PM
0.54
8:57AM
0.51
6:34PM
0.69
11:14AM
0.51
9:50PM
0.80
12:29PM
0.42
12:04AM
0.70
1:11PM
0.35
1:05AM
0.56
1:42PM
0.29
1:47AM
0.42
Sunday
14
Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunrise5:39--5:39--5:39--5:37--5:37--5:37--5:37--
Sunset-5:43--5:43--5:42--5:42--5:42--5:42--5:42-
rain showers
clear
thunderstorm
rain showers
part cloud
rain showers
thunderstorm
rain showers
rain showers
thunderstorm
thunderstorm
rain showers
thunderstorm
mod rain
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
clear
thunderstorm
Rain (mm)
1-31-121079871288144363-3
Temp. °C272726272625252625262525252525262525262626
Feels °C (?)292927282727262727282727272827292828282829
  • 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

Eyeball surf reportRecent Eyeball Surf Reports for Java - Central

  1. weather stationWind Update The wind is still cross-off at Batu Karas (light winds from the SE at Cilacap 57 km from Batu Karas). 1.2m 14s groundswell from the SW with a 0.9m 7s swell from the SE and a 0.4m 9s swell from the S. 3 swells combining to make bigger set waves.

    1 hour 51 minutes ago Batu Karas
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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.

View detailed surf forecast for Batu Karas at:
surf-forecast.com

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.

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