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Surf Forecasts:
Dewata surfForecast / West / Sri Lanka
48hr Weather and Surf, issued 10 pm Saturday 16 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
29.4° C
(Which is normal for this time of year)How big are the waves at Dewata today?
The current surf forecast for Dewata at 4AM is: 1.9m 7s primary swell from a Southwest direction and 0.4m 15s secondary swell from a South-southwest direction, 0.1m 22s secondary swell from a Southwest direction (forecast issued at 10:30pm May 16). The wind direction is predicted to be onshore.
| Time (+0530) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 May) | 5ft (1.6m) | 12s |
| Afternoon (17 May) | 5ft (1.6m) | 12s |
| Evening (17 May) | 4.5ft (1.4m) | 11s |
Table - waves today at Dewata. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 58mm), heaviest during Sat night. Warm (max 28°C on Sat night, min 27°C on Sat night). Wind will be generally light. | ||||||||||||||||||||||||
Sat 16 | Sunday 17 | Monday 18 | Tuesday 19 | |||||||||||||||||||||
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 13 | SSW 14 | SW 7 | SSW 7 | SSW 12 | SW 7 | SSW 12 | SSW 12 | SSW 12 | SSW 11 | SSW 11 | SSW 11 | SSW 11 | SSW 11 | SSW 11 | SW 6 | SW 6 | SW 6 | SW 6 | SSW 12 | S 12 | S 12 | S 12 | SSW 16 | |
290 | 331 | 287 | 313 | 680 | 286 | 725 | 669 | 579 | 400 | 415 | 407 | 400 | 337 | 337 | 182 | 152 | 152 | 154 | 494 | 232 | 228 | 213 | 220 | |
Wind (km/h) | ||||||||||||||||||||||||
on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | cross-on | cross-on | cross-on | cross-on | |
High Tide | 2:23AM0.49m | 2:46PM0.67m | 3:00AM0.50m | 3:22PM0.66m | 3:38AM0.49m | 3:58PM0.62m | ||||||||||||||||||
Low Tide | 8:24PM0.06m | 8:01AM0.02m | 8:57PM0.05m | 8:38AM0.02m | 9:31PM0.05m | 9:17AM0.04m | ||||||||||||||||||
 | | | |  | | | | | | |  | | | | | | | | | | | | | |
 | — | — | — | 5:52 | — | — | — | — | — | — | — | 5:52 | — | — | — | — | — | — | — | 5:52 | — | — | — | — |
 | — | — | — | — | — | — | — | 6:16 | — | — | — | — | — | — | — | 6:16 | — | — | — | — | — | — | — | 6:16 |
4 | 6 | 5 | 3 | 3 | 3 | 3 | 2 | 1 | 1 | 1 | — | 1 | 3 | 3 | 3 | 2 | 1 | 2 | 3 | 3 | 2 | 2 | 1 | |
Temp °C | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 |
28 | 28 | 28 | 29 | 29 | 29 | 29 | 30 | 30 | 30 | 30 | 30 | 30 | 29 | 30 | 30 | 31 | 30 | 30 | 29 | 29 | 29 | 29 | 30 | |
Swell 1 Height (m) Direction Period (s) | SSW 8 | SSW 8 | S 12 | SSW 15 | W 7 | SSW 15 | W 6 | SSW 12 | SSW 12 | SSW 11 | SSW 11 | SSW 11 | SSW 11 | SSW 11 | SSW 11 | SW 6 | SW 6 | SW 16 | S 12 | SSW 12 | S 12 | S 12 | S 12 | S 11 |
 kJ | 215 | 207 | 139 | 84 | 89 | 44 | 50 | 669 | 579 | 400 | 415 | 407 | 400 | 337 | 337 | 182 | 152 | 124 | 77 | 494 | 232 | 228 | 213 | 198 |
Swell 2 Height (m) Direction Period (s) | SSW 13 | SSW 14 | SSW 15 | SW 22 | SSW 15 | SSW 21 | SSW 21 | SW 20 | W 6 | W 6 | SW 18 | SSW 18 | SSW 18 | SSW 14 | SSW 16 | SSW 16 | SSW 16 | S 17 | SW 16 | SSW 17 | SSW 18 | SSW 18 | SSW 6 | SSW 16 |
| kJ | 290 | 331 | 121 | 19 | 42 | 45 | 44 | 98 | 61 | 60 | 83 | 123 | 121 | 62 | 103 | 102 | 100 | 50 | 124 | 200 | 176 | 178 | 45 | 220 |
Swell 3 Height (m) Direction Period (s) | SE 9 | S 24 | S 24 | SW 22 | SSW 22 | SSW 21 | SE 8 | S 15 | SW 20 | S 13 | S 14 | S 14 | S 14 | SW 17 | S 14 | S 13 | S 17 | S 13 | S 16 | S 16 | SW 14 | S 16 | SSW 18 | WSW 9 |
| kJ | 3 | 11 | 11 | 18 | 45 | 45 | 11 | 40 | 97 | 92 | 58 | 34 | 33 | 77 | 32 | 32 | 51 | 31 | 48 | 82 | 54 | 79 | 120 | 16 |
Wind waves Height (m) Direction Period (s) | WSW 7 | WSW 7 | SW 7 | SSW 7 | SSW 12 | SW 7 | SSW 12 | W 6 | SW 6 | SW 6 | W 6 | W 6 | W 6 | WSW 6 | WSW 6 | SW 6 | SW 6 | SW 6 | SW 6 | W 6 | SW 6 | SW 6 | W 6 | WSW 6 |
| kJ | 139 | 135 | 287 | 313 | 680 | 286 | 725 | 62 | 247 | 223 | 49 | 47 | 58 | 60 | 62 | 147 | 147 | 152 | 154 | 54 | 116 | 131 | 76 | 120 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 866 | 445 | 866 | 445 | 866 | 866 | 866 | 866 | 866 | 866 | 866 | 866 | 866 | 1985 | 2033 | 1985 | 1001 | 1001 | 1144 | 1051 | 1051 | 202 | 202 | 1096 |
Best forecast wave conditions in West Sri Lanka | ||||||||||||||||||||||||
Best forecast wave conditions in Sri Lanka | ||||||||||||||||||||||||
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