Surf Forecasts:
How big are the waves at The Rock today (20 Jul):
- Morning surf: Morning surf (20 Jul, local time) - 3ft (0.9m), 18s period with S swell.
- Afternoon surf: Afternoon surf (20 Jul, local time) - 3.5ft (1.1m), 17s period with S swell.
- Evening surf: Evening surf (20 Jul, local time) - 4ft (1.2m), 16s period with S swell.
The current surf forecast for The Rock at 9AM is: 0.9m 18s primary swell from a South direction and 1.1m 13s secondary swell from a South direction, 0.8m 5s secondary swell from a West direction (forecast issued at 04:30am July 20). The wind direction is predicted to be cross-onshore.
| Time (+0530) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Jul) | 3ft (0.9m) | 18s |
| Afternoon (20 Jul) | 3.5ft (1.1m) | 17s |
| Evening (20 Jul) | 4ft (1.2m) | 16s |
Table - waves today at The Rock. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 21mm), heaviest during Mon morning. Warm (max 29°C on Tue morning, min 26°C on Mon night). Wind will be generally light. | ||||||||||||||||||||||||
Monday 20 | Tuesday 21 | Wednesday 22 | ||||||||||||||||||||||
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 | 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 13 | S 19 | S 18 | S 18 | S 18 | S 17 | S 16 | S 16 | S 16 | S 16 | S 15 | S 15 | S 14 | S 14 | S 14 | S 14 | S 14 | S 13 | S 13 | S 13 | S 13 | S 13 | SSW 13 | SSW 12 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 282 | 470 | 509 | 632 | 751 | 675 | 752 | 743 | 620 | 604 | 871 | 847 | 713 | 703 | 694 | 577 | 529 | 513 | 427 | 421 | 421 | 414 | 215 | 155 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross-on | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross-on | cross-on | cross | cross | cross |
High Tide | 6:00AM0.47m | 5:35PM0.42m | 6:35AM0.44m | 6:03PM0.37m | 7:16AM0.41m | 6:35PM0.32m | ||||||||||||||||||
Low Tide | 11:54AM0.17m | 11:57PM0.08m | 12:34PM0.20m | 00:25AM0.13m | 1:28PM0.24m | |||||||||||||||||||
 | |  | | | | |  | | | |  | |  |  | | | | | | | | | | |
 | — | 6:01 | — | — | — | — | — | — | — | 6:01 | — | — | — | — | — | — | — | 6:01 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:27 | — | — | — | — | — | — | — | 6:27 | — | — | — | — | — | — | — | 6:27 | — | — |
mm | 1 | 1 | 3 | 3 | 2 | 2 | 1 | — | 1 | 1 | 1 | — | — | — | — | — | 1 | — | — | — | — | — | — | 1 |
Temp °C | 26 | 26 | 27 | 27 | 27 | 27 | 27 | 26 | 26 | 26 | 27 | 29 | 29 | 28 | 27 | 27 | 27 | 27 | 28 | 29 | 29 | 28 | 27 | 27 |
Feels °C | 27 | 27 | 28 | 28 | 28 | 28 | 29 | 28 | 28 | 28 | 29 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 31 | 30 | 30 | 30 | 29 | 30 |
Swell 1 Height (m) Direction Period (s) | SSW 13 | S 13 | S 13 | SSW 13 | S 18 | S 17 | S 16 | S 16 | S 16 | S 16 | S 15 | S 15 | S 14 | S 14 | S 14 | S 14 | S 14 | S 13 | S 13 | S 13 | S 13 | S 13 | SSW 13 | W 8 |
| kJ | 282 | 408 | 408 | 499 | 751 | 675 | 752 | 743 | 620 | 604 | 871 | 847 | 713 | 703 | 694 | 577 | 529 | 513 | 427 | 421 | 421 | 414 | 215 | 92 |
Swell 2 Height (m) Direction Period (s) | S 8 | W 10 | S 18 | S 18 | S 10 | S 10 | S 10 | S 10 | S 10 | S 11 | W 9 | W 9 | SE 8 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 11 | W 8 | W 10 | S 10 | S 10 |
| kJ | 82 | 179 | 509 | 632 | 214 | 218 | 218 | 177 | 177 | 181 | 85 | 110 | 16 | 60 | 59 | 157 | 127 | 125 | 55 | 9 | 50 | 52 | 90 | 116 |
Swell 3 Height (m) Direction Period (s) | W 10 | S 19 | W 9 | WNW 10 | W 10 | W 10 | W 10 | W 10 | SSW 12 | W 10 | SE 8 | SE 8 | — | SE 8 | SE 8 | S 9 | SW 18 | SE 8 | SE 8 | SE 8 | SE 8 | W 8 | W 9 | SSW 12 |
| kJ | 90 | 470 | 85 | 157 | 88 | 92 | 94 | 94 | 29 | 90 | 17 | 16 | — | 10 | 10 | 55 | 12 | 16 | 16 | 21 | 21 | 32 | 54 | 155 |
Wind waves Height (m) Direction Period (s) | W 6 | W 5 | W 5 | W 9 | W 5 | W 5 | W 5 | W 5 | W 10 | WSW 5 | W 6 | W 9 | W 9 | W 6 | W 6 | W 5 | W 6 | W 5 | W 5 | W 9 | W 9 | W 9 | W 6 | W 5 |
| kJ | 38 | 47 | 37 | 173 | 35 | 45 | 45 | 45 | 231 | 49 | 50 | 207 | 198 | 53 | 38 | 47 | 49 | 47 | 27 | 119 | 150 | 117 | 21 | 27 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 193 | 193 | 193 | 192 | 740 | 374 | 186 | 147 | 192 | 2 | 193 | 186 | 763 | 763 | 763 | 22 | 193 | 22 | 369 | 193 | 764 | 764 | 374 | 193 |
Best forecast wave conditions in West Sri Lanka | ||||||||||||||||||||||||
Best forecast wave conditions in Sri Lanka | ||||||||||||||||||||||||
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