Batu Karas Surf Break

Lat Long: 7.75° S 108.50° E

Batu Karas 48 hour detailed Surf Forecast

Issued: 6 am 31 Jul 2026 (local time)

Forecast update in  hr  min

Today's Batu Karas sea temperature is
25.3° 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 (31 Jul):

  • Morning surf: Morning surf (31 Jul, local time) - 4.5ft (1.3m), 17s period with SSW swell.
  • Afternoon surf: Afternoon surf (31 Jul, local time) - 5.5ft (1.7m), 16s period with SSW swell.
  • Evening surf: Evening surf (31 Jul, local time) - 5ft (1.6m), 16s period with SSW swell.

The current surf forecast for Batu Karas at 10AM is: 1.4m 17s primary swell from a South-southwest direction and 0.9m 13s secondary swell from a South-southwest direction, 1.3m 7s secondary swell from a East-southeast direction (forecast issued at 06:00am July 31). The wind direction is predicted to be cross-shore.

Time (WIB) & DateWave HeightWave Period
Morning (31 Jul)4.5ft (1.3m)17s
Afternoon (31 Jul)5.5ft (1.7m)16s
Evening (31 Jul)5ft (1.6m)16s

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


Short Range Forecast

Mostly dry. Warm (max 26°C on Sat morning, min 22°C on Fri night). Wind will be generally light.

Friday
31
Saturday
1
Sunday
2
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)
1
1
1
1
1
2
1
2
2
2
2
1
1
2
3
3
3
3
3
3
3
2
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)
1.3
SSW
18
1.2
SW
17
1.4
SSW
17
1.7
SSW
16
1.7
SSW
16
1.6
SSW
16
1.6
SSW
16
1.5
SSW
16
1.6
SSW
16
1.7
SSW
17
1.7
SSW
18
1.7
SSW
18
1.7
SSW
17
1.7
SSW
16
1.6
SSW
16
1.6
SSW
16
1.7
SSW
16
2.1
SSW
17
2.1
SSW
17
2.1
SSW
16
2.1
SSW
16
2
SSW
16
2
SSW
16
Wave Graph
Metric surfscale
Energy kJ
1021
874
1081
1427
1393
1214
1214
1081
1321
1657
1837
1735
1657
1487
1289
1289
1536
2594
2465
2187
2133
1923
1828
Wind (km/h)
10
E
15
E
20
ESE
20
ESE
15
ESE
15
ESE
10
E
10
ENE
10
ENE
10
NNE
15
E
15
ESE
15
ESE
10
E
10
E
10
NE
5
NNE
10
NE
15
ESE
20
SE
15
SE
10
E
10
ENE
Wind State
cross-on
cross-on
cross
cross
cross
cross
cross-on
cross-on
cross-on
on
cross
cross
cross
cross
cross-on
on
on
on
cross
cross-off
cross-off
cross-on
cross-on
High Tide
9:04AM1.61m
9:55PM1.33m
9:35AM1.60m
10:20PM1.42m
10:06AM1.56m
Low Tide
2:53AM0.51m
3:42PM0.14m
3:29AM0.46m
4:06PM0.14m
4:04AM0.42m
4:28PM0.16m
part cloud
clear
part cloud
part cloud
clear
part cloud
clear
clear
clear
part cloud
cloud
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:58
5:58
5:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:45
5:45
5:45
 mm
Temp °C
23
24
25
25
25
24
23
23
23
22
24
26
25
24
23
23
22
22
25
25
25
24
23
Feels °C
25
25
25
26
26
26
25
25
26
24
25
27
26
26
26
26
25
25
27
26
26
27
26
  • 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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