Surf Forecasts:
How big are the waves at Dewata 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 (1.4m), 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 Dewata at 3AM is: 1.1m 14s primary swell from a South-southwest direction and 1.1m 11s secondary swell from a South direction (forecast issued at 10:30pm September 20). An open ocean swell of 1.2m 6s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (+0530) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Sep) | 3.5ft (1.0m) | 13s |
| Afternoon (21 Sep) | 4.5ft (1.4m) | 13s |
| Evening (21 Sep) | 4.5ft (1.3m) | 13s |
Table - waves today at Dewata. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 89mm), heaviest during Sun night. Warm (max 28°C on Wed morning, min 26°C on Sun night). Wind will be generally light. | ||||||||||||||||||
Sun 20 | Monday 21 | Tuesday 22 | ||||||||||||||||
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 | 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 |
Wave Graph  | ||||||||||||||||||
 kJ | 1223 | 1060 | 492 | 465 | 378 | 378 | 700 | 591 | 582 | 573 | 490 | 273 | 256 | 198 | 359 | 344 | 344 | 339 |
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-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 2:58AM0.30m | 11:51AM0.33m | 1:32AM0.33m | 12:31PM0.39m | ||||||||||||||
Low Tide | 7:08PM0.23m | 6:11AM0.27m | 6:54PM0.17m | 6:49AM0.21m | 7:10PM0.12m | |||||||||||||
 | | | |  | | | |  | | | | | | | | | | |
 | — | — | — | 5:58 | — | — | — | — | — | — | — | 5:58 | — | — | — | — | — | — |
 | — | — | — | — | — | — | — | 6:05 | — | — | — | — | — | — | — | 6:05 | — | — |
mm | 3 | 2 | 6 | 3 | 2 | 3 | 4 | 5 | 6 | 6 | 5 | 4 | 4 | 4 | 4 | 4 | 4 | 5 |
Temp °C | 27 | 27 | 26 | 26 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 |
Feels °C | 28 | 29 | 27 | 27 | 29 | 29 | 29 | 29 | 29 | 28 | 29 | 29 | 28 | 28 | 28 | 28 | 28 | 28 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 14 | SSW 14 | WSW 6 | 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 |
| kJ | 1223 | 1060 | 492 | 119 | 378 | 378 | 700 | 591 | 582 | 573 | 490 | 273 | 256 | 198 | 359 | 344 | 344 | 339 |
Swell 2 Height (m) Direction Period (s) | S 18 | SSW 17 | S 11 | SSW 14 | 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 |
| kJ | 56 | 101 | 269 | 465 | 223 | 198 | 38 | 36 | 67 | 65 | 106 | 118 | 118 | 118 | 257 | 318 | 300 | 304 |
Swell 3 Height (m) Direction Period (s) | S 22 | ESE 8 | S 21 | S 11 | ESE 8 | SSW 20 | SE 8 | SSW 19 | SE 8 | S 13 | S 13 | S 18 | S 18 | S 18 | SSW 17 | SSW 17 | SW 12 | SSW 12 |
| kJ | 9 | 6 | 9 | 223 | 6 | 37 | 10 | 70 | 9 | 31 | 31 | 158 | 156 | 158 | 237 | 170 | 69 | 96 |
Wind waves Height (m) Direction Period (s) | W 6 | W 6 | W 6 | W 6 | W 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 |
| kJ | 130 | 135 | 115 | 158 | 97 | 78 | 90 | 93 | 93 | 119 | 127 | 150 | 160 | 191 | 191 | 186 | 181 | 203 |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 201 | 202 | 866 | 202 | 202 | 201 | 866 | 866 | 866 | 202 | 661 | 661 | 202 | 733 | 866 | 733 | 733 | 866 |
Best forecast wave conditions in West Sri Lanka | ||||||||||||||||||
Best forecast wave conditions in Sri Lanka | ||||||||||||||||||
Header Global | ||||||||||||||||||
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