Surf Forecasts:
How big are the waves at The Rock today (21 Sep):
- Morning surf: Morning surf (21 Sep, local time) - 3.5ft (1.0m), 13s period with SSW swell.
- Afternoon surf: Afternoon surf (21 Sep, local time) - 4.5ft (1.3m), 13s period with SSW swell.
- Evening surf: Evening surf (21 Sep, local time) - 4.5ft (1.3m), 13s period with S swell.
The current surf forecast for The Rock at 7AM is: 1.1m 13s primary swell from a South-southwest direction and 1.0m 11s secondary swell from a South direction, 1.1m 6s secondary swell from a West-southwest direction (forecast issued at 04:30am September 21). The wind direction is predicted to be cross-shore.
| Time (+0530) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Sep) | 3.5ft (1.0m) | 13s |
| Afternoon (21 Sep) | 4.5ft (1.3m) | 13s |
| Evening (21 Sep) | 4.5ft (1.3m) | 13s |
Table - waves today at The Rock. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 88mm), heaviest during Mon night. Warm (max 28°C on Tue afternoon, min 26°C on Mon night). Wind will be generally light. | ||||||||||||||||||||||||
Monday 21 | Tuesday 22 | Wednesday 23 | ||||||||||||||||||||||
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 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | S 13 | S 13 | S 13 | S 13 | SSW 13 | SSW 12 | SSW 12 | S 12 | S 12 | S 12 | S 12 | S 12 | SSW 16 | SSW 16 | S 11 | WSW 7 | S 11 | S 11 | S 11 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 492 | 465 | 378 | 378 | 700 | 591 | 582 | 573 | 573 | 273 | 256 | 198 | 359 | 344 | 344 | 339 | 339 | 346 | 266 | 289 | 237 | 207 | 210 | 210 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 2:29AM0.31m | 12:20PM0.35m | 1:23AM0.35m | 12:41PM0.41m | 1:22AM0.40m | 1:04PM0.45m | ||||||||||||||||||
Low Tide | 6:43AM0.28m | 7:07PM0.17m | 6:46AM0.22m | 7:10PM0.12m | 7:05AM0.16m | 7:23PM0.08m | ||||||||||||||||||
 | |  | | | |  | | | | | | | | | | | | | | | | | | |
 | — | 5:58 | — | — | — | — | — | — | — | 5:56 | — | — | — | — | — | — | — | 5:56 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:05 | — | — | — | — | — | — | — | 6:04 | — | — | — | — | — | — | — | 6:04 | — | — |
mm | 4 | 4 | 3 | 3 | 4 | 4 | 6 | 6 | 5 | 5 | 5 | 4 | 3 | 3 | 3 | 2 | 4 | 3 | 4 | 3 | 3 | 2 | 3 | 4 |
Temp °C | 26 | 26 | 27 | 27 | 27 | 27 | 26 | 26 | 26 | 26 | 27 | 27 | 28 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 |
Feels °C | 27 | 28 | 30 | 29 | 28 | 29 | 28 | 28 | 27 | 27 | 28 | 28 | 29 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 28 | 29 | 28 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | S 13 | S 13 | S 13 | S 13 | SSW 13 | SSW 12 | SSW 12 | S 12 | S 12 | S 12 | S 12 | S 12 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 |
| kJ | 492 | 465 | 378 | 378 | 700 | 591 | 582 | 573 | 573 | 273 | 256 | 198 | 359 | 344 | 344 | 339 | 339 | 231 | 244 | 289 | 237 | 192 | 182 | 185 |
Swell 2 Height (m) Direction Period (s) | S 11 | S 11 | S 11 | S 10 | SSW 20 | SSW 19 | SSW 18 | SSW 18 | SSW 18 | S 10 | S 10 | S 10 | SSW 18 | SSW 18 | SSW 17 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 |
| kJ | 269 | 223 | 223 | 198 | 38 | 36 | 67 | 65 | 106 | 151 | 118 | 118 | 260 | 322 | 300 | 304 | 300 | 346 | 266 | 201 | 193 | 174 | 167 | 165 |
Swell 3 Height (m) Direction Period (s) | S 21 | ESE 8 | ESE 8 | SSW 20 | ESE 8 | SSW 19 | SE 8 | S 13 | S 13 | S 18 | S 18 | S 18 | SSW 17 | SSW 17 | SW 12 | SSW 12 | SSE 7 | S 16 | SSW 13 | SSW 13 | SSW 13 | SSE 7 | S 14 | — |
| kJ | 9 | 6 | 6 | 37 | 6 | 70 | 9 | 31 | 31 | 158 | 156 | 158 | 235 | 170 | 69 | 96 | 30 | 139 | 35 | 35 | 35 | 27 | 65 | — |
Wind waves Height (m) Direction Period (s) | W 6 | W 6 | WSW 6 | W 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 7 | WSW 7 | WSW 6 | WSW 6 | WSW 6 |
| kJ | 115 | 115 | 101 | 78 | 92 | 87 | 93 | 93 | 111 | 150 | 185 | 185 | 181 | 175 | 175 | 203 | 220 | 245 | 265 | 220 | 214 | 207 | 210 | 210 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 192 | 193 | 875 | 193 | 193 | 192 | 875 | 875 | 875 | 193 | 669 | 669 | 193 | 740 | 875 | 740 | 740 | 875 | 740 | 193 | 193 | 193 | 194 | 669 |
Best forecast wave conditions in West Sri Lanka | ||||||||||||||||||||||||
Best forecast wave conditions in Sri Lanka | ||||||||||||||||||||||||
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