Surf Forecasts:
How big are the waves at The Rock today (20 Jul):
- 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 11PM is: 1.2m 16s primary swell from a South direction and 0.8m 10s secondary swell from a South direction, 0.9m 5s secondary swell from a West-southwest direction (forecast issued at 04:30pm July 20). The wind direction is predicted to be cross-shore.
| Time (+0530) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Jul) | - | - |
| 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 ForecastModerate rain (total 12mm), heaviest on Mon afternoon. Warm (max 29°C on Tue morning, min 26°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Mon 20 | Tuesday 21 | Wednesday 22 | ||||||||||||||||||
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) | 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 | SSW 13 | SSW 13 | W 10 |
Wave Graph  | ||||||||||||||||||||
 kJ | 751 | 675 | 752 | 743 | 620 | 604 | 871 | 847 | 713 | 703 | 694 | 577 | 529 | 513 | 427 | 421 | 421 | 225 | 215 | 155 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross-on | cross-on | cross | cross | cross |
High Tide | 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 | — | — | — | — | — | — |
 | — | 6:27 | — | — | — | — | — | — | — | 6:27 | — | — | — | — | — | — | — | 6:27 | — | — |
mm | 2 | 2 | — | 1 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 27 | 26 | 26 | 26 | 26 | 27 | 29 | 29 | 28 | 27 | 27 | 27 | 27 | 28 | 29 | 29 | 28 | 27 | 27 |
Feels °C | 28 | 29 | 28 | 28 | 28 | 28 | 29 | 30 | 30 | 30 | 29 | 30 | 30 | 30 | 31 | 30 | 30 | 30 | 30 | 30 |
Swell 1 Height (m) Direction Period (s) | 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 | SSW 13 | S 10 | S 10 |
| kJ | 751 | 675 | 752 | 743 | 620 | 604 | 871 | 847 | 713 | 703 | 694 | 577 | 529 | 513 | 427 | 421 | 421 | 225 | 116 | 117 |
Swell 2 Height (m) Direction Period (s) | S 10 | S 10 | S 10 | S 10 | S 10 | S 11 | W 9 | W 9 | W 9 | W 9 | S 9 | W 9 | SW 18 | W 9 | W 9 | W 9 | W 8 | S 10 | SSW 13 | SSW 12 |
| kJ | 214 | 168 | 218 | 136 | 177 | 181 | 207 | 110 | 108 | 60 | 56 | 79 | 12 | 153 | 150 | 55 | 50 | 90 | 215 | 155 |
Swell 3 Height (m) Direction Period (s) | SSW 13 | SSW 13 | W 10 | W 10 | SSW 12 | W 10 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | S 9 | SW 18 | SE 8 | SE 8 | SE 8 | WNW 11 | SE 8 | W 9 | SSW 16 |
| kJ | 129 | 125 | 94 | 94 | 29 | 90 | 17 | 16 | 16 | 10 | 10 | 55 | 12 | 16 | 16 | 16 | 40 | 21 | 54 | 26 |
Wind waves Height (m) Direction Period (s) | W 10 | W 10 | W 6 | WSW 5 | W 10 | W 5 | W 6 | W 9 | W 9 | W 6 | W 9 | W 9 | W 9 | W 5 | W 5 | W 9 | W 9 | W 9 | W 5 | W 10 |
| kJ | 214 | 225 | 38 | 47 | 225 | 47 | 62 | 202 | 198 | 42 | 160 | 160 | 157 | 49 | 41 | 122 | 120 | 119 | 27 | 154 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 763 | 374 | 186 | 147 | 192 | 2 | 186 | 189 | 669 | 763 | 763 | 22 | 147 | 22 | 369 | 669 | 764 | 764 | 374 | 22 |
Best forecast wave conditions in West Sri Lanka | ||||||||||||||||||||
Best forecast wave conditions in Sri Lanka | ||||||||||||||||||||
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