Batu Karas Surf Break

Lat Long: 7.75° S 108.50° E

Batu Karas 48 hour detailed Surf Forecast

Issued: 12 am 12 Sep 2026 (local time)

Forecast update in  hr  min

Today's Batu Karas sea temperature is
25.4°C
1.0° 

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 Sep):

  • Morning surf: Morning surf (12 Sep, local time) - 4.5ft (1.4m), 15s period with SW swell.
  • Afternoon surf: Afternoon surf (12 Sep, local time) - 5ft (1.6m), 19s period with SW swell.
  • Evening surf: Evening surf (12 Sep, local time) - 6ft (1.9m), 19s period with SW swell.

The current surf forecast for Batu Karas at 7AM is: 1.0m 21s primary swell from a Southwest direction and 1.4m 14s secondary swell from a Southwest direction (forecast issued at 12:00am September 12). An open ocean swell of 1.1m 5s is not directed at the surf break. The wind direction is predicted to be cross-onshore.

Time (WIB) & DateWave HeightWave Period
Morning (12 Sep)4.5ft (1.4m)15s
Afternoon (12 Sep)5ft (1.6m)19s
Evening (12 Sep)6ft (1.9m)19s

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


Short Range Forecast

Light rain (total 2mm), mostly falling on Sat night. Warm (max 26°C on Sun morning, min 23°C on Fri night). Wind will be generally light.

Saturday
12
Sunday
13
Monday
14
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
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
Rating
(10 max)
2
3
2
1
3
3
3
3
2
3
3
2
3
3
3
3
2
2
2
1
2
2
1
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)
1.5
SW
14
1.1
SW
21
1
SW
21
1.4
SW
15
1.4
SW
19
1.8
SW
19
1.9
SW
19
1.9
SW
19
2.3
SW
18
2.5
SSW
18
2.3
SW
17
2.3
SW
17
2.2
SW
16
2.2
SW
16
2.1
SW
16
2.1
SW
16
2
SW
16
1.9
SW
16
1.9
SW
16
1.9
SW
16
1.9
SW
16
1.9
SW
16
1.9
SW
16
1.9
SW
16
Wave Graph
Metric surfscale
Energy kJ
928
1051
881
776
1475
2315
2475
2530
3411
4041
3148
2777
2527
2496
2269
2080
1856
1738
1761
1761
1761
1738
1761
1738
Wind (km/h)
10
ENE
10
NE
10
ENE
20
ESE
20
SE
20
SE
15
ESE
10
ESE
10
E
5
ENE
5
E
15
ESE
20
SE
20
SE
10
E
5
ENE
10
ENE
5
ENE
10
NE
20
E
20
SE
15
SE
10
E
15
ESE
Wind State
cross-on
cross-on
cross-on
cross
cross-off
cross-off
cross
cross
cross-on
cross-on
cross-on
cross
cross-off
cross-off
cross
cross-on
cross-on
cross-on
cross-on
cross
cross-off
cross-off
cross-on
cross
High Tide
8:40AM1.60m
9:00PM1.67m
9:16AM1.56m
9:29PM1.74m
9:49AM1.49m
9:57PM1.75m
Low Tide
2:34AM0.23m
2:49PM0.16m
3:13AM0.14m
3:16PM0.17m
3:48AM0.11m
3:41PM0.20m
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thunderstorm
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part cloud
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clear
clear
clear
part cloud
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<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:41
5:41
5:39
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:43
5:43
5:43
 mm
1
1
Temp °C
24
23
24
25
25
25
25
25
25
24
25
25
26
25
25
25
24
24
24
26
26
25
24
25
Feels °C
27
26
27
26
26
26
28
28
28
27
29
27
27
26
28
29
27
27
27
27
27
27
27
27
  • 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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