Batu Karas surf break

Batu Karas surfForecast / Java – Central / Indonesia

information circle12 Day Weather and Surf, issued 12 am Thursday 31 Jul 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
28.4° C
(Which is 1.6°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 Saturday (Aug 02) at 1PM. The primary swell is predicted to be 1.1m and 15s period with a secondary swell of 1.2m and 7s. 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 3.0m 19s and forecast to arrive on Tuesday (Aug 05) 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 0.3m 10s period and expected on Tuesday (Aug 05) at 7PM.

Wave TypeTime (WIB) & Date Wave Height & Period
Next good surf (1 star+) 1PM (Sat 2nd Aug)3.5ft (1.1m) 15s
Best Surf 4PM (Mon 4th Aug)7ft (2.1m) 16s
Most Powerful10PM (Tue 5th Aug)10ft (3.0m) 19s

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 25mm), heaviest during Wed night. Warm (max 27°C on Fri morning, min 25°C on Wed night). Wind will be generally light.

Days 3-6 Weather Summary Light rain (total 8mm), mostly falling on Sat night. Warm (max 27°C on Sun morning, min 25°C on Sat night). Wind will be generally light.

Thursday
31
Friday
01
Saturday
02
Sunday
03
Monday
04
Tuesday
05
Wed
06
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
2.5
S
2.2
S
2.2
SE
1.5
S
0.8
SSW
0.8
SSW
0.9
SSW
0.9
SSW
1.1
SW
1.2
SW
1.4
SW
1.9
SW
2.1
SW
2.1
SW
2.1
SW
2.1
SSW
2.1
SSW
3
SSW
3
SSW
3
SSW
2.5
SSW
Period(s) (?)13138121716151615141616171616161515191716
Wave
Graph
(?)Metric surfscale
Energy (?)23331892137212381030922778640714104213871988275221982254261432543408609051553620
Wind
(km/h)
20
ESE
15
E
25
ESE
20
E
15
ENE
20
ESE
15
ESE
10
E
15
SE
10
E
15
ESE
15
ESE
10
ESE
15
E
15
SE
10
E
15
E
20
ESE
15
ESE
15
E
15
ESE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscrosscrosscrosscross-
on
crosscrosscrosscross-
off
crosscrosscrosscrosscrosscross-
off
crosscrosscrosscrosscrosscross
High Tide
/ height (m)
11:49PM
1.50
11:46AM
1.26
12:19AM
1.47
12:18PM
1.11
12:51AM
1.42
12:52PM
0.97
1:29AM
1.36
1:38PM
0.83
2:19AM
1.30
3:27PM
0.72
3:38AM
1.26
5:13AM
1.29
Low Tide
/ height (m)
6:01AM
0.45
5:47PM
0.35
6:43AM
0.50
6:08PM
0.43
7:32AM
0.56
6:28PM
0.52
8:40AM
0.61
6:46PM
0.60
10:30AM
0.61
6:58PM
0.68
12:24PM
0.52
1:19PM
0.41
Thursday
31
Friday
01
Saturday
02
Sunday
03
Monday
04
Tuesday
05
Wed
06
Sunrise-5:58--5:58--5:58--5:58--5:58--5:58--5:58-
Sunset--5:45--5:45--5:45--5:45--5:45--5:45--5:45
rain showersthunderstorm thunderstorm rain showersthunderstorm part cloudpart cloudpart cloudclearthunderstorm thunderstorm thunderstorm thunderstorm part cloudpart cloudthunderstorm thunderstorm part cloudclearpart cloudclear
Rain (mm)
96442----1111--31----
Temp. °C252626252726262727262727262727252727252626
Feels °C (?)262626262827283029302929292929282929272827
  • 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 Srigunting wx 139 km from Batu Karas). 2.3m 13s groundswell from the S with a 0.8m 20s long period groundswell from the SW. 2 swells combining to make bigger set waves.

    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.


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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