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Batu Karas Surf Forecast
/ Java – Central (5 surf breaks) /
Surf Forecasts:
Batu Karas surfForecast / Java – Central / Indonesia
48hr Weather and Surf, issued 12 am Thursday 21 May 2026 WIBForecast 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 slightly cooler than normal)How big are the waves at Batu Karas today?
The current surf forecast for Batu Karas at 3AM is: 1.2m 15s primary swell from a Southwest direction and 1.2m 11s secondary swell from a South direction (forecast issued at 12:00am May 21). The wind direction is predicted to be glassy and the swell rating is 2.
| Time (WIB) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 May) | 4.5ft (1.3m) | 15s |
| Afternoon (21 May) | 5ft (1.5m) | 15s |
| Evening (21 May) | 5ft (1.5m) | 16s |
Table - waves today at Batu Karas. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 9mm), mostly falling on Wed night. Warm (max 28°C on Thu morning, min 26°C on Wed night). Wind will be generally light. | ||||||||||||||||||||||||
Thursday 21 | Friday 22 | Saturday 23 | ||||||||||||||||||||||
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 | |
Swell Height Map |    |    |    | |||||||||||||||||||||
SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SSW 14 | SSW 14 | SW 14 | SSW 14 | |
565 | 623 | 696 | 696 | 1074 | 1006 | 980 | 1087 | 967 | 1046 | 966 | 940 | 940 | 1020 | 940 | 940 | 953 | 833 | 701 | 681 | 635 | 644 | 564 | 617 | |
Wind (km/h) | ||||||||||||||||||||||||
glassy | glassy | glassy | glassy | cross-off | off | cross-off | glassy | glassy | glassy | glassy | cross | cross-off | cross-off | cross | on | glassy | glassy | glassy | cross | cross-off | cross-off | cross | cross-on | |
High Tide | 10:54PM1.17m | 10:40AM1.76m | 11:44PM1.15m | 11:29AM1.60m | 00:42AM1.15m | 12:24PM1.42m | ||||||||||||||||||
Low Tide | 4:10AM0.42m | 5:37PM0.11m | 5:03AM0.50m | 6:27PM0.23m | 6:08AM0.61m | 7:21PM0.35m | ||||||||||||||||||
 | |  | |  | |  | |  | | |  | | | | | | | | | | | | | |
 | — | 5:50 | — | — | — | — | — | — | — | 5:50 | — | — | — | — | — | — | — | 5:50 | — | — | — | — | — | — |
 | — | — | — | — | — | 5:34 | — | — | — | — | — | — | — | 5:34 | — | — | — | — | — | — | — | 5:34 | — | — |
— | — | — | — | 1 | — | 1 | 1 | — | 1 | — | — | — | — | 1 | 1 | 1 | — | — | 1 | — | — | — | — | |
Temp °C | 26 | 26 | 26 | 28 | 28 | 28 | 27 | 27 | 26 | 26 | 26 | 28 | 27 | 28 | 27 | 26 | 26 | 26 | 26 | 27 | 27 | 28 | 27 | 26 |
31 | 31 | 31 | 32 | 32 | 31 | 32 | 33 | 31 | 31 | 31 | 32 | 30 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 29 | 31 | 31 | 30 | |
Swell 1 Height (m) Direction Period (s) | S 11 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SSW 14 | SSW 14 | SW 14 | SSW 14 |
 kJ | 332 | 623 | 696 | 696 | 1074 | 1006 | 980 | 1087 | 967 | 1046 | 966 | 940 | 940 | 1020 | 940 | 940 | 953 | 833 | 701 | 681 | 635 | 644 | 564 | 617 |
Swell 2 Height (m) Direction Period (s) | SW 15 | S 11 | S 12 | S 12 | SE 8 | SE 7 | SE 7 | SE 9 | SE 8 | SE 8 | SE 8 | SE 7 | SE 8 | SE 8 | SE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | S 6 | ESE 8 |
| kJ | 565 | 326 | 322 | 284 | 48 | 34 | 34 | 74 | 69 | 51 | 40 | 34 | 60 | 60 | 60 | 56 | 58 | 56 | 55 | 41 | 40 | 39 | 11 | 50 |
Swell 3 Height (m) Direction Period (s) | S 13 | SE 8 | SE 8 | SE 8 | S 12 | SE 9 | SE 9 | W 8 | S 10 | ESE 9 | ESE 9 | ESE 9 | S 12 | S 10 | S 12 | S 8 | S 8 | S 8 | S 11 | S 11 | S 11 | S 11 | S 11 | S 10 |
| kJ | 14 | 11 | 18 | 32 | 26 | 20 | 28 | 1 | 96 | 17 | 32 | 31 | 12 | 17 | 11 | 21 | 20 | 21 | 9 | 9 | 9 | 2 | 2 | 8 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SE 4 | — | — | — | ESE 8 | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 4 | — | — | — | 51 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 230 | 0 | 0 | 230 | 6 | 0 | 0 | 0 | 25 | 0 | 0 |
Best forecast wave conditions in Central Java | ||||||||||||||||||||||||
Best forecast wave conditions in Indonesia | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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Ocean Swells (m)- Wind Speed (km/h)
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