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Surf Forecasts:
Dewata surfForecast / West / Sri Lanka
48hr Weather and Surf, issued 10 pm Thursday 21 May 2026 +0530Forecast update in hr min s Forecast update imminent
Dewata surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Dewata sea temperature is
29.1° C
(Which is normal for this time of year)How big are the waves at Dewata today?
The current surf forecast for Dewata at 1AM is: 0.9m 14s primary swell from a South-southwest direction and 0.3m 18s secondary swell from a South-southwest direction, 1.8m 7s secondary swell from a West-southwest direction (forecast issued at 10:30pm May 21). The wind direction is predicted to be cross-onshore.
| Time (+0530) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (22 May) | 6ft (1.8m) | 8s |
| Afternoon (22 May) | 6ft (1.9m) | 8s |
| Evening (22 May) | 3ft (0.9m) | 16s |
Table - waves today at Dewata. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 152mm), heaviest during Thu night. Warm (max 28°C on Thu night, min 25°C on Thu night). Wind will be generally light. | ||||||||||||||||||||||||
Thu 21 | Friday 22 | Saturday 23 | Sunday 24 | |||||||||||||||||||||
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 | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | |
Swell Height Map |   |    |    |    | ||||||||||||||||||||
SSW 15 | WSW 7 | WSW 7 | SSW 14 | WSW 8 | WSW 8 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | WSW 8 | WSW 8 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | |
275 | 277 | 371 | 371 | 382 | 382 | 534 | 487 | 481 | 435 | 376 | 449 | 449 | 366 | 366 | 356 | 331 | 317 | 253 | 307 | 285 | 265 | 263 | 256 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | 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 | 6:02AM0.41m | 5:48PM0.45m | 7:21AM0.39m | 6:38PM0.39m | 9:13AM0.39m | |||||||||||||||||||
Low Tide | 11:32PM0.11m | 11:30AM0.20m | 00:25AM0.14m | 12:41PM0.26m | 1:37AM0.16m | 3:02PM0.29m | ||||||||||||||||||
 | |  | |  | | |  | | | | | | | | | | | | | | | | | |
 | — | — | — | 5:52 | — | — | — | — | — | — | — | 5:52 | — | — | — | — | — | — | — | 5:52 | — | — | — | — |
 | — | — | — | — | — | — | — | 6:17 | — | — | — | — | — | — | — | 6:17 | — | — | — | — | — | — | — | 6:17 |
6 | 10 | 13 | 15 | 15 | 7 | 5 | 6 | 4 | 4 | 10 | 12 | 10 | 7 | 5 | 1 | 2 | 2 | 4 | 3 | 3 | 2 | 3 | 3 | |
Temp °C | 28 | 28 | 27 | 25 | 26 | 27 | 27 | 27 | 27 | 26 | 25 | 26 | 26 | 27 | 27 | 28 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 28 |
30 | 29 | 29 | 27 | 29 | 28 | 28 | 28 | 28 | 27 | 26 | 27 | 26 | 29 | 29 | 30 | 29 | 28 | 28 | 28 | 29 | 29 | 29 | 29 | |
Swell 1 Height (m) Direction Period (s) | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 |
 kJ | 275 | 268 | 371 | 371 | 371 | 371 | 534 | 487 | 481 | 435 | 376 | 449 | 449 | 366 | 366 | 356 | 331 | 317 | 253 | 307 | 246 | 246 | 242 | 170 |
Swell 2 Height (m) Direction Period (s) | S 10 | S 10 | SSW 18 | SSW 18 | SSW 18 | SSE 9 | SW 13 | S 10 | S 10 | SW 13 | SSE 9 | SSE 9 | SSE 9 | SSE 8 | S 8 | S 8 | SSE 9 | SSE 9 | S 8 | SSE 9 | S 18 | S 8 | SSW 18 | SSW 18 |
| kJ | 73 | 71 | 62 | 104 | 61 | 55 | 175 | 19 | 8 | 138 | 30 | 30 | 29 | 26 | 31 | 19 | 32 | 31 | 21 | 30 | 6 | 10 | 31 | 61 |
Swell 3 Height (m) Direction Period (s) | — | SSW 18 | SSW 18 | SSW 18 | SSW 18 | SSW 16 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | S 10 | S 10 | S 10 | S 10 | SE 9 | SSE 7 | — | — | — | SW 18 | SW 18 | SSW 18 | SSW 18 | SSW 18 |
| kJ | — | 63 | 106 | 104 | 102 | 153 | 54 | 68 | 53 | 30 | 8 | 8 | 8 | 8 | 22 | 11 | — | — | — | 13 | 13 | 31 | 31 | 61 |
Wind waves Height (m) Direction Period (s) | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | SW 8 | WSW 7 | WSW 7 | WSW 8 | WSW 8 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 |
| kJ | 248 | 277 | 330 | 352 | 382 | 382 | 414 | 403 | 358 | 352 | 362 | 353 | 353 | 362 | 311 | 294 | 320 | 294 | 241 | 248 | 285 | 265 | 263 | 256 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 195 | 201 | 866 | 202 | 202 | 202 | 359 | 1829 | 1947 | 1494 | 661 | 203 | 202 | 202 | 202 | 202 | 202 | 202 | 202 | 1051 | 203 | 202 | 203 | 202 |
Best forecast wave conditions in West Sri Lanka | ||||||||||||||||||||||||
Best forecast wave conditions in Sri Lanka | ||||||||||||||||||||||||
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