Surf Forecasts:
How big are the waves at The Rock today (18 Sep):
- Morning surf: Morning surf (18 Sep, local time) - 3.5ft (1.1m), 14s period with SSW swell.
- Afternoon surf: Afternoon surf (18 Sep, local time) - 3.5ft (1.0m), 13s period with S swell.
- Evening surf: Evening surf (18 Sep, local time) - 3ft (0.9m), 18s period with SSW swell.
The current surf forecast for The Rock at 9AM is: 1.1m 14s primary swell from a South-southwest direction and 0.5m 19s secondary swell from a South-southwest direction, 1.3m 6s secondary swell from a Southwest direction (forecast issued at 04:30am September 18). The wind direction is predicted to be cross-onshore.
| Time (+0530) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Sep) | 3.5ft (1.1m) | 14s |
| Afternoon (18 Sep) | 3.5ft (1.0m) | 13s |
| Evening (18 Sep) | 3ft (0.9m) | 18s |
Table - waves today at The Rock. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 67mm), heaviest during Fri night. Warm (max 28°C on Fri morning, min 26°C on Sat night). Wind will be generally light. | ||||||||||||||||||||||||
Friday 18 | Saturday 19 | Sunday 20 | ||||||||||||||||||||||
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 14 | SSW 14 | S 13 | SSW 18 | SSW 18 | SSW 18 | SSW 17 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 651 | 529 | 521 | 413 | 366 | 454 | 459 | 670 | 1431 | 1560 | 1717 | 1818 | 1774 | 1913 | 1943 | 2054 | 1949 | 1658 | 1635 | 1459 | 1402 | 1382 | 1223 | 534 |
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 | cross | cross-on | cross-on | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-on |
High Tide | 5:01AM0.44m | 4:47PM0.35m | 5:17AM0.39m | 4:24PM0.30m | 5:16AM0.34m | 12:21PM0.30m | ||||||||||||||||||
Low Tide | 11:15AM0.18m | 10:40PM0.17m | 11:35AM0.24m | 10:10PM0.21m | 11:26AM0.30m | 7:53PM0.22m | ||||||||||||||||||
 | |  | | | | | | | | | | | | | | | | | | | | | | |
 | — | 5:58 | — | — | — | — | — | — | — | 5:58 | — | — | — | — | — | — | — | 5:58 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:06 | — | — | — | — | — | — | — | 6:06 | — | — | — | — | — | — | — | 6:05 | — | — |
mm | 1 | 1 | 2 | 3 | 4 | 4 | 5 | 3 | 2 | 1 | 2 | 1 | 1 | 2 | 1 | 2 | 5 | 4 | 5 | 3 | 3 | 3 | 2 | 2 |
Temp °C | 27 | 27 | 27 | 28 | 28 | 27 | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 27 | 27 | 26 | 27 | 27 | 27 | 27 | 28 | 27 | 26 | 26 |
Feels °C | 29 | 30 | 29 | 30 | 29 | 29 | 29 | 29 | 29 | 29 | 28 | 29 | 29 | 29 | 29 | 28 | 28 | 29 | 28 | 28 | 28 | 28 | 28 | 28 |
Swell 1 Height (m) Direction Period (s) | SW 7 | SW 6 | SSW 14 | SSW 14 | S 13 | S 13 | S 13 | SSW 18 | SSW 17 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 |
| kJ | 158 | 150 | 521 | 413 | 366 | 361 | 355 | 670 | 1431 | 1560 | 1717 | 1818 | 1774 | 1913 | 1943 | 2054 | 1949 | 1658 | 1635 | 1459 | 1402 | 1382 | 1223 | 534 |
Swell 2 Height (m) Direction Period (s) | SSW 14 | SSW 14 | SSW 20 | SSW 19 | SSW 18 | SSW 18 | SSW 18 | SSW 13 | SE 8 | SE 8 | SE 7 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | S 18 | S 18 | S 11 |
| kJ | 651 | 529 | 149 | 199 | 251 | 454 | 459 | 286 | 20 | 20 | 19 | 20 | 20 | 14 | 14 | 16 | 10 | 10 | 9 | 9 | 9 | 56 | 56 | 269 |
Swell 3 Height (m) Direction Period (s) | SSW 20 | SSW 20 | WNW 9 | SE 8 | SE 7 | SE 7 | SE 8 | SE 8 | — | — | — | — | — | — | W 10 | W 10 | W 10 | W 9 | W 9 | S 20 | S 20 | SE 7 | SE 8 | WSW 6 |
| kJ | 75 | 149 | 15 | 20 | 27 | 27 | 28 | 29 | — | — | — | — | — | — | 2 | 2 | 2 | 7 | 7 | 30 | 30 | 9 | 9 | 74 |
Wind waves Height (m) Direction Period (s) | — | — | SW 6 | SW 6 | SW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | W 6 | WSW 6 | WSW 6 | WSW 6 | W 6 | W 6 | W 6 | WSW 6 | WSW 6 | WSW 6 | W 6 | WSW 6 | WSW 6 |
| kJ | — | — | 126 | 113 | 109 | 93 | 87 | 80 | 77 | 71 | 71 | 69 | 90 | 90 | 77 | 54 | 66 | 64 | 67 | 74 | 69 | 52 | 74 | 108 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 759 | 193 | 193 | 669 | 876 | 875 | 669 | 875 | 193 | 193 | 193 | 192 | 670 | 875 | 875 | 193 | 193 | 193 | 193 | 374 | 669 | 193 | 193 | 193 |
Best forecast wave conditions in West Sri Lanka | ||||||||||||||||||||||||
Best forecast wave conditions in Sri Lanka | ||||||||||||||||||||||||
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