Surf Forecasts:
How big are the waves at The Rock today (20 Sep):
- Morning surf: Morning surf (20 Sep, local time) - 6ft (1.9m), 15s period with SSW swell.
- Afternoon surf: Afternoon surf (20 Sep, local time) - 6ft (1.9m), 14s period with SSW swell.
- Evening surf: Evening surf (20 Sep, local time) - 5.5ft (1.7m), 14s period with SSW swell.
The current surf forecast for The Rock at 2AM is: 2.0m 15s primary swell from a South-southwest direction and 0.3m 8s secondary swell from a Southeast direction, 1.3m 6s secondary swell from a West-southwest direction (forecast issued at 10:30pm September 19). The wind direction is predicted to be cross-onshore.
| Time (+0530) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Sep) | 6ft (1.9m) | 15s |
| Afternoon (20 Sep) | 6ft (1.9m) | 14s |
| Evening (20 Sep) | 5.5ft (1.7m) | 14s |
Table - waves today at The Rock. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 88mm), heaviest during Sat night. Warm (max 28°C on Mon morning, min 26°C on Sun night). Wind will be generally light. | ||||||||||||||||||
Sat 19 | Sunday 20 | Monday 21 | ||||||||||||||||
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 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | S 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | S 13 | S 13 | S 13 |
Wave Graph  | ||||||||||||||||||
 kJ | 1889 | 2054 | 1726 | 1658 | 1479 | 1459 | 1439 | 1382 | 1223 | 1033 | 492 | 465 | 378 | 378 | 700 | 591 | 582 | 573 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 5:16AM0.34m | 12:21PM0.30m | 2:29AM0.31m | 12:20PM0.35m | ||||||||||||||
Low Tide | 10:10PM0.21m | 11:26AM0.30m | 7:53PM0.22m | 6:43AM0.28m | 7:07PM0.17m | |||||||||||||
 | | | |  | | | | | | | | | | | | | | |
 | — | — | — | 5:58 | — | — | — | — | — | — | — | 5:58 | — | — | — | — | — | — |
 | — | — | — | — | — | — | — | 6:05 | — | — | — | — | — | — | — | 6:05 | — | — |
mm | 2 | 3 | 6 | 5 | 6 | 6 | 5 | 4 | 3 | 1 | 4 | 3 | 2 | 3 | 2 | 3 | 4 | 4 |
Temp °C | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 26 | 27 | 27 | 28 | 28 | 27 | 27 | 26 |
Feels °C | 29 | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 28 | 29 | 27 | 29 | 28 | 30 | 29 | 28 | 29 | 27 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | S 14 | S 11 | S 11 | SSW 13 | S 10 | SSW 13 | S 13 | S 13 | S 13 |
| kJ | 1889 | 2054 | 1726 | 1658 | 1479 | 1459 | 1439 | 1382 | 1223 | 1033 | 326 | 269 | 378 | 239 | 700 | 591 | 582 | 573 |
Swell 2 Height (m) Direction Period (s) | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | ESE 8 | ESE 8 | S 18 | S 18 | SSW 17 | SSW 14 | SSW 14 | S 11 | SSW 13 | SSW 20 | SSW 19 | SSW 18 | SSW 18 |
| kJ | 15 | 16 | 10 | 10 | 9 | 6 | 6 | 56 | 56 | 101 | 492 | 465 | 223 | 378 | 38 | 36 | 67 | 65 |
Swell 3 Height (m) Direction Period (s) | W 10 | W 10 | W 10 | W 10 | W 9 | S 20 | S 19 | ESE 8 | S 22 | ESE 8 | S 21 | ESE 8 | SE 8 | SSW 20 | ESE 8 | SSW 19 | ESE 8 | S 13 |
| kJ | 2 | 2 | 2 | 2 | 2 | 30 | 28 | 6 | 9 | 6 | 9 | 6 | 10 | 37 | 6 | 70 | 6 | 31 |
Wind waves Height (m) Direction Period (s) | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 7 | WSW 6 | WSW 6 | W 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 |
| kJ | 106 | 102 | 106 | 106 | 115 | 113 | 135 | 160 | 160 | 177 | 152 | 147 | 153 | 119 | 155 | 150 | 137 | 119 |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 875 | 193 | 193 | 193 | 193 | 193 | 875 | 740 | 193 | 193 | 193 | 193 | 193 | 192 | 193 | 740 | 875 | 193 |
Best forecast wave conditions in West Sri Lanka | ||||||||||||||||||
Best forecast wave conditions in Sri Lanka | ||||||||||||||||||
Header Global | ||||||||||||||||||
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