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Surf Forecasts:
Dewata surfForecast / West / Sri Lanka
48hr Weather and Surf, issued 10 pm Tuesday 19 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
29.2° C
(Which is normal for this time of year)How big are the waves at Dewata today?
The current surf forecast for Dewata at 7AM is: 0.9m 15s primary swell from a South-southwest direction and 0.7m 10s secondary swell from a South direction, 1.4m 6s secondary swell from a West-southwest direction (forecast issued at 10:30pm May 19). The wind direction is predicted to be cross-onshore.
| Time (+0530) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 May) | 3ft (0.9m) | 15s |
| Afternoon (20 May) | 5ft (1.6m) | 7s |
| Evening (20 May) | 3.5ft (1.0m) | 13s |
Table - waves today at Dewata. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 43mm), heaviest during Wed afternoon. Warm (max 28°C on Tue night, min 27°C on Tue night). Wind will be generally light. | ||||||||||||||||||||||||
Tue 19 | Wednesday 20 | Thursday 21 | Friday 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 | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
SSW 16 | SW 16 | WSW 7 | SSW 14 | SSW 15 | SSW 15 | WSW 7 | WSW 7 | S 13 | S 13 | SSW 13 | WSW 7 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 16 | SSW 16 | |
322 | 258 | 220 | 239 | 305 | 272 | 214 | 195 | 366 | 366 | 290 | 200 | 229 | 229 | 322 | 310 | 275 | 268 | 330 | 449 | 371 | 449 | 534 | 487 | |
Wind (km/h) | ||||||||||||||||||||||||
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 | cross-on | cross-on | cross-on | |
High Tide | 4:19AM0.47m | 4:33PM0.57m | 5:05AM0.44m | 5:09PM0.51m | 6:02AM0.41m | |||||||||||||||||||
Low Tide | 10:08PM0.06m | 9:57AM0.08m | 10:47PM0.08m | 10:40AM0.14m | 11:32PM0.11m | 11:30AM0.20m | ||||||||||||||||||
 | | | |  | | | | | | |  | | | |  | | | | | | | | | |
 | — | — | — | 5:52 | — | — | — | — | — | — | — | 5:52 | — | — | — | — | — | — | — | 5:52 | — | — | — | — |
 | — | — | — | — | — | — | — | 6:16 | — | — | — | — | — | — | — | 6:17 | — | — | — | — | — | — | — | 6:17 |
1 | 2 | 2 | 1 | 2 | 2 | 3 | 2 | 2 | 1 | 1 | — | 2 | 3 | 2 | — | — | 2 | 2 | 3 | 2 | 3 | 2 | 3 | |
Temp °C | 28 | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 27 | 28 | 28 | 28 | 27 | 27 | 28 | 28 | 28 | 28 |
31 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 30 | 30 | 30 | 30 | 29 | 28 | 28 | 30 | 31 | 30 | 28 | 28 | 30 | 29 | 29 | 30 | |
Swell 1 Height (m) Direction Period (s) | WSW 6 | WSW 6 | WSW 7 | S 10 | SSW 15 | S 10 | S 10 | S 10 | S 13 | S 13 | SSW 13 | S 10 | S 10 | S 10 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 16 | SSW 16 |
 kJ | 155 | 160 | 165 | 131 | 305 | 128 | 98 | 128 | 366 | 366 | 290 | 100 | 104 | 104 | 322 | 310 | 275 | 268 | 330 | 449 | 371 | 449 | 534 | 487 |
Swell 2 Height (m) Direction Period (s) | S 11 | S 11 | S 10 | SSW 14 | S 10 | SSW 15 | SSW 14 | SSW 14 | SSW 18 | SSW 18 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | S 10 | S 10 | S 10 | S 10 | S 10 | SSW 18 | SSW 18 | SSW 16 | SW 13 | S 10 |
| kJ | 192 | 146 | 136 | 239 | 98 | 272 | 186 | 138 | 178 | 121 | 181 | 175 | 229 | 229 | 100 | 72 | 71 | 71 | 68 | 104 | 61 | 153 | 175 | 18 |
Swell 3 Height (m) Direction Period (s) | SSW 16 | SW 16 | SSW 15 | SSW 20 | SSW 20 | SSW 18 | SSW 18 | SSW 18 | SSW 18 | SW 18 | SSW 16 | SSW 13 | SSW 13 | SSW 14 | S 20 | — | — | SSW 18 | SSW 18 | SSW 18 | SSW 18 | SSE 9 | SSE 9 | SSE 9 |
| kJ | 322 | 258 | 201 | 37 | 37 | 66 | 124 | 123 | 207 | 150 | 181 | 118 | 118 | 121 | 7 | — | — | 63 | 62 | 104 | 102 | 56 | 32 | 31 |
Wind waves Height (m) Direction Period (s) | — | — | WSW 7 | WSW 6 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 |
| kJ | — | — | 220 | 170 | 198 | 189 | 214 | 195 | 192 | 192 | 200 | 200 | 200 | 187 | 212 | 220 | 227 | 206 | 200 | 237 | 268 | 262 | 262 | 269 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 1001 | 1001 | 202 | 202 | 202 | 195 | 195 | 201 | 202 | 202 | 202 | 202 | 195 | 201 | 201 | 201 | 202 | 202 | 202 | 202 | 202 | 202 | 201 | 201 |
Best forecast wave conditions in West Sri Lanka | ||||||||||||||||||||||||
Best forecast wave conditions in Sri Lanka | ||||||||||||||||||||||||
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