Surf Forecasts:
How big are the waves at The Rock today (18 Aug):
- Afternoon surf: Afternoon surf (18 Aug, local time) - 7ft (2.2m), 19s period with SSW swell.
- Evening surf: Evening surf (18 Aug, local time) - 7ft (2.1m), 18s period with SSW swell.
The current surf forecast for The Rock at 8PM is: 2.1m 18s primary swell from a South-southwest direction and 1.1m 9s secondary swell from a West direction, 1.3m 10s secondary swell from a West direction (forecast issued at 04:30pm August 18). The wind direction is predicted to be cross-shore.
| Time (+0530) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Aug) | - | - |
| Afternoon (18 Aug) | 7ft (2.2m) | 19s |
| Evening (18 Aug) | 7ft (2.1m) | 18s |
Table - waves today at The Rock. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 18mm), heaviest on Thu night. Warm (max 28°C on Tue afternoon, min 26°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Tue 18 | Wednesday 19 | Thursday 20 | ||||||||||||||||||
2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | |
Swell Height Map |  |  |  |  |  |  |  |  | ||||||||||||
Wave Height (m) Direction Period (s) | SSW 19 | SSW 19 | SSW 18 | SSW 18 | SSW 18 | SSW 18 | SSW 18 | SSW 17 | SSW 18 | SSW 18 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 |
Wave Graph  | ||||||||||||||||||||
 kJ | 3412 | 3306 | 2770 | 2678 | 2897 | 2864 | 2864 | 2832 | 2798 | 3056 | 2735 | 2783 | 2458 | 2398 | 2160 | 1938 | 1869 | 1643 | 1581 | 1364 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross-on | cross | cross | cross-on | cross | cross | cross | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross | cross | cross |
High Tide | 4:56PM0.44m | 5:32AM0.47m | 5:15PM0.39m | 5:55AM0.43m | 5:26PM0.34m | |||||||||||||||
Low Tide | 11:05PM0.07m | 11:36AM0.16m | 11:22PM0.12m | 12:03PM0.21m | ||||||||||||||||
 | |  | |  | | |  | | | | | | | |  | | | | | |
 | — | — | — | — | — | 6:03 | — | — | — | — | — | — | — | 6:03 | — | — | — | — | — | — |
 | — | 6:21 | — | — | — | — | — | — | — | 6:21 | — | — | — | — | — | — | — | 6:20 | — | — |
mm | — | — | — | — | 1 | 1 | — | 1 | — | — | 1 | 1 | 1 | 1 | 1 | — | — | — | 1 | 1 |
Temp °C | 28 | 27 | 27 | 26 | 26 | 26 | 27 | 28 | 28 | 27 | 27 | 26 | 26 | 26 | 27 | 28 | 28 | 27 | 26 | 26 |
Feels °C | 29 | 29 | 30 | 28 | 29 | 28 | 29 | 29 | 28 | 28 | 29 | 28 | 28 | 28 | 28 | 29 | 28 | 28 | 28 | 27 |
Swell 1 Height (m) Direction Period (s) | SSW 19 | SSW 19 | SSW 18 | SSW 18 | SSW 18 | SSW 18 | SSW 18 | SSW 17 | SSW 18 | SSW 18 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 |
| kJ | 3412 | 3306 | 2770 | 2678 | 2897 | 2864 | 2864 | 2832 | 2798 | 3056 | 2735 | 2783 | 2458 | 2398 | 2160 | 1938 | 1869 | 1643 | 1581 | 1364 |
Swell 2 Height (m) Direction Period (s) | SSE 10 | W 6 | W 9 | W 9 | W 9 | SSE 9 | SSE 9 | S 19 | S 18 | S 18 | S 18 | W 8 | W 8 | S 12 | S 12 | W 9 | — | W 10 | W 10 | W 10 |
| kJ | 81 | 119 | 203 | 203 | 169 | 65 | 47 | 900 | 1279 | 1615 | 1561 | 52 | 51 | 225 | 285 | 61 | — | 65 | 50 | 29 |
Swell 3 Height (m) Direction Period (s) | — | — | S 10 | S 9 | S 21 | — | — | SE 9 | SSE 9 | — | W 9 | — | — | W 8 | W 9 | — | — | — | — | — |
| kJ | — | — | 44 | 43 | 323 | — | — | 39 | 44 | — | 54 | — | — | 37 | 63 | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | W 6 | W 9 | W 10 | W 9 | W 9 | W 9 | W 9 | W 6 | W 6 | W 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | W 6 |
| kJ | 115 | 295 | 301 | 251 | 244 | 165 | 194 | 82 | 85 | 82 | 94 | 94 | 97 | 101 | 101 | 101 | 101 | 97 | 97 | 64 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 763 | 763 | 6 | 193 | 193 | 193 | 193 | 192 | 875 | 192 | 193 | 193 | 193 | 193 | 193 | 186 | 186 | 192 | 192 | 193 |
Best forecast wave conditions in West Sri Lanka | ||||||||||||||||||||
Best forecast wave conditions in Sri Lanka | ||||||||||||||||||||
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