Batu Karas Surf Break

Lat Long: 7.75° S 108.50° E

Batu Karas 48 hour detailed Surf Forecast

Issued: 6 am 12 Aug 2026 (local time)

Forecast update in  hr  min

Today's Batu Karas sea temperature is
25.1° C
1.5° 

Batu Karas surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at Batu Karas today (12 Aug):

  • Morning surf: Morning surf (12 Aug, local time) - 8ft (2.4m), 16s period with S swell.
  • Afternoon surf: Afternoon surf (12 Aug, local time) - 7.5ft (2.3m), 16s period with S swell.
  • Evening surf: Evening surf (12 Aug, local time) - 7ft (2.1m), 15s period with S swell.

The current surf forecast for Batu Karas at 1PM is: 2.3m 16s primary swell from a South direction and 0.5m 20s secondary swell from a South direction (forecast issued at 06:00am August 12). The wind direction is predicted to be cross-shore.

Time (WIB) & DateWave HeightWave Period
Morning (12 Aug)8ft (2.4m)16s
Afternoon (12 Aug)7.5ft (2.3m)16s
Evening (12 Aug)7ft (2.1m)15s

Table - waves today at Batu Karas. (Swell directed towards the surf break)


Short Range Forecast

Mostly dry. Warm (max 25°C on Wed morning, min 22°C on Wed night). Wind will be generally light.

Wednesday
12
Thursday
13
Friday
14
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
Rating
(10 max)
2
3
3
2
2
3
3
2
3
4
3
3
2
3
3
3
3
3
3
2
2
3
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2.5
S
17
2.5
S
16
2.4
S
16
2.3
S
16
2.2
S
16
2.1
S
16
2.1
S
14
2.5
S
18
3
S
18
3
S
17
3
S
17
3
S
17
3
S
16
3
S
16
3
S
16
3
S
16
3
S
16
2.5
S
15
2.5
S
15
2.5
S
15
2.3
SSW
14
2.2
SSW
14
1.5
SSW
18
Wave Graph
Metric surfscale
Energy kJ
3972
3098
2825
2567
2352
2123
1772
4585
4762
5091
5304
5241
5381
5220
4782
4427
4056
3176
2792
3064
2098
1895
1512
Wind (km/h)
10
ENE
10
NNE
15
ESE
20
ESE
15
ESE
15
ESE
15
ESE
10
ENE
10
NE
5
NNE
15
ESE
20
ESE
15
ESE
10
ESE
10
ENE
10
ENE
10
ENE
10
NE
15
ESE
20
ESE
20
ESE
15
ESE
15
E
Wind State
cross-on
on
cross
cross
cross
cross
cross
cross-on
on
glassy
cross
cross-off
cross
cross
cross-on
cross-on
cross-on
on
cross
cross
cross
cross
cross-on
High Tide
7:15AM1.65m
8:24PM1.21m
8:07AM1.71m
8:59PM1.38m
8:52AM1.73m
9:32PM1.52m
Low Tide
2:14PM0.12m
1:48AM0.46m
2:49PM0.07m
2:39AM0.34m
3:22PM0.05m
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
part cloud
part cloud
clear
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:56
5:54
5:54
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:45
5:45
5:45
 mm
Temp °C
22
21
24
25
25
24
24
23
22
22
24
25
25
24
23
23
23
23
24
25
25
24
23
Feels °C
23
23
25
25
26
26
26
25
24
25
25
25
26
26
25
25
25
26
25
25
26
26
25
  • 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
How to use the Wavefinder 

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