Surf Forecasts:
How big are the waves at Rivermouth (Hikkaduwa) today (10 Aug):
- Morning surf: Morning surf (10 Aug, local time) - 4.5ft (1.4m), 15s period with SSW swell.
- Afternoon surf: Afternoon surf (10 Aug, local time) - 3.5ft (1.1m), 15s period with SSW swell.
- Evening surf: Evening surf (10 Aug, local time) - 3ft (0.9m), 21s period with SSW swell.
The current surf forecast for Rivermouth (Hikkaduwa) at 6AM is: 1.1m 16s primary swell from a South direction and 1.4m 12s secondary swell from a South direction, 1.1m 8s secondary swell from a West-northwest direction (forecast issued at 10:30pm August 09). The wind direction is predicted to be cross-onshore.
| Time (+0530) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (10 Aug) | 4.5ft (1.4m) | 15s |
| Afternoon (10 Aug) | 3.5ft (1.1m) | 15s |
| Evening (10 Aug) | 3ft (0.9m) | 21s |
Table - waves today at Rivermouth (Hikkaduwa). (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 54mm), heaviest during Tue night. Warm (max 27°C on Mon morning, min 26°C on Sun night). Wind will be generally light. | ||||||||||||||||||
Sun 9 | Monday 10 | Tuesday 11 | ||||||||||||||||
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) | S 17 | S 16 | S 16 | S 16 | SSW 15 | S 15 | SSW 15 | S 14 | SSW 21 | SSW 21 | S 21 | S 21 | SSW 20 | S 19 | S 19 | S 18 | S 18 | S 18 |
Wave Graph  | ||||||||||||||||||
 kJ | 839 | 752 | 620 | 604 | 929 | 636 | 551 | 1147 | 521 | 793 | 436 | 681 | 544 | 1277 | 1225 | 777 | 885 | 1051 |
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 | 00:44AM0.33m | 12:59PM0.56m | 1:28AM0.41m | 1:37PM0.61m | ||||||||||||||
Low Tide | 7:27PM0.20m | 6:10AM0.19m | 7:48PM0.14m | 7:09AM0.14m | 8:12PM0.09m | |||||||||||||
 | | | |  | | | | | | | | | | | | | | |
 | — | — | — | 6:03 | — | — | — | — | — | — | — | 6:03 | — | — | — | — | — | — |
 | — | — | — | — | — | — | — | 6:24 | — | — | — | — | — | — | — | 6:24 | — | — |
mm | 1 | 2 | 1 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 |
Temp °C | 26 | 26 | 26 | 26 | 27 | 27 | 27 | 27 | 26 | 26 | 26 | 26 | 27 | 27 | 27 | 26 | 26 | 26 |
Feels °C | 29 | 29 | 29 | 29 | 29 | 28 | 29 | 29 | 29 | 28 | 28 | 28 | 29 | 28 | 28 | 28 | 28 | 29 |
Swell 1 Height (m) Direction Period (s) | S 12 | S 12 | S 12 | S 12 | SSW 15 | S 11 | S 11 | S 14 | S 11 | S 11 | S 11 | S 13 | S 11 | S 19 | S 19 | SSE 11 | S 18 | S 18 |
| kJ | 508 | 517 | 520 | 517 | 929 | 319 | 389 | 1147 | 375 | 371 | 332 | 434 | 345 | 1277 | 1225 | 303 | 885 | 1051 |
Swell 2 Height (m) Direction Period (s) | WNW 8 | W 8 | S 16 | WNW 8 | S 10 | S 15 | SSW 15 | SSW 22 | S 14 | S 14 | S 13 | S 10 | SSW 13 | S 12 | S 11 | S 18 | SSE 11 | SSE 11 |
| kJ | 197 | 195 | 620 | 167 | 204 | 636 | 551 | 526 | 480 | 453 | 366 | 250 | 290 | 330 | 351 | 777 | 263 | 273 |
Swell 3 Height (m) Direction Period (s) | S 17 | S 16 | WNW 8 | S 16 | SSW 24 | SSW 23 | SSW 22 | SSW 22 | SSW 21 | SSW 21 | S 21 | S 21 | SSW 20 | S 13 | SSW 13 | SSW 12 | S 12 | S 11 |
| kJ | 839 | 752 | 171 | 604 | 314 | 471 | 415 | 485 | 521 | 793 | 436 | 681 | 544 | 350 | 212 | 205 | 304 | 199 |
Wind waves Height (m) Direction Period (s) | SW 5 | — | — | — | W 8 | W 8 | W 8 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 10 | W 10 | W 5 | W 10 | W 10 |
| kJ | 18 | — | — | — | 206 | 168 | 217 | 240 | 251 | 246 | 241 | 288 | 295 | 307 | 314 | 82 | 320 | 320 |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 19 | 19 | 54 | 19 | 338 | 650 | 859 | 343 | 19 | 54 | 210 | 54 | 210 | 650 | 768 | 343 | 343 | 54 |
Best forecast wave conditions in West Sri Lanka | ||||||||||||||||||
Best forecast wave conditions in Sri Lanka | ||||||||||||||||||
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