Surf Forecasts:
How big are the waves at Rivermouth (Hikkaduwa) today (21 Oct):
- Morning surf: Morning surf (21 Oct, local time) - 4ft (1.2m), 13s period with S swell.
- Afternoon surf: Afternoon surf (21 Oct, local time) - 3.5ft (1.1m), 13s period with S swell.
- Evening surf: Evening surf (21 Oct, local time) - 3.5ft (1.1m), 12s period with S swell.
The current surf forecast for Rivermouth (Hikkaduwa) at 3AM is: 1.3m 13s primary swell from a South direction and 0.3m 22s secondary swell from a South-southwest direction, 0.5m 6s secondary swell from a West direction (forecast issued at 10:30pm October 20). The wind direction is predicted to be cross-onshore.
| Time (+0530) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Oct) | 4ft (1.2m) | 13s |
| Afternoon (21 Oct) | 3.5ft (1.1m) | 13s |
| Evening (21 Oct) | 3.5ft (1.1m) | 12s |
Table - waves today at Rivermouth (Hikkaduwa). (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 191mm), heaviest during Thu night. Warm (max 28°C on Tue night, min 24°C on Wed night). Wind will be generally light. | ||||||||||||||||||
Tue 20 | Wednesday 21 | Thursday 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 | S 14 | S 13 | S 13 | S 13 | S 13 | S 13 | S 12 | S 12 | S 12 | SSW 18 | S 12 | SSW 12 | SSW 16 | SSW 16 | SSW 16 | SSW 21 |
Wave Graph  | ||||||||||||||||||
 kJ | 799 | 777 | 618 | 506 | 498 | 498 | 414 | 408 | 368 | 290 | 280 | 443 | 246 | 147 | 232 | 295 | 295 | 476 |
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 | cross-off | cross | cross | on | cross-on | on | cross-on |
High Tide | 00:13AM0.39m | 11:29AM0.45m | 00:22AM0.48m | 12:07PM0.50m | ||||||||||||||
Low Tide | 5:49PM0.23m | 5:39AM0.29m | 6:00PM0.19m | 6:15AM0.23m | 6:18PM0.14m | |||||||||||||
 | | |  |  | |  | | | |  | | | | | | | | |
 | — | — | — | 5:54 | — | — | — | — | — | — | — | 5:54 | — | — | — | — | — | — |
 | — | — | — | — | — | — | — | 5:52 | — | — | — | — | — | — | — | 5:52 | — | — |
mm | 3 | 1 | 1 | — | 2 | 2 | — | 3 | 4 | 5 | 7 | 6 | 4 | 3 | 5 | 21 | 35 | 24 |
Temp °C | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 26 | 26 | 25 | 24 | 24 | 25 | 25 | 25 | 24 | 24 |
Feels °C | 31 | 31 | 30 | 30 | 31 | 30 | 29 | 29 | 28 | 30 | 29 | 28 | 28 | 29 | 30 | 29 | 27 | 26 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 14 | S 14 | S 13 | S 13 | S 13 | S 13 | S 13 | S 12 | S 12 | S 12 | S 12 | S 12 | SSW 12 | S 12 | S 11 | S 10 | S 11 |
| kJ | 799 | 777 | 618 | 506 | 498 | 498 | 414 | 408 | 368 | 290 | 280 | 228 | 224 | 147 | 174 | 202 | 128 | 144 |
Swell 2 Height (m) Direction Period (s) | SSW 24 | SSW 24 | SSW 23 | SSW 21 | SSW 21 | SSW 21 | SSW 20 | SSW 19 | SSW 19 | SSW 19 | SSW 18 | SSW 18 | W 5 | W 5 | SSW 16 | SSW 16 | SSW 16 | SSW 21 |
| kJ | 54 | 54 | 52 | 153 | 260 | 178 | 218 | 295 | 295 | 212 | 249 | 443 | 21 | 15 | 232 | 295 | 295 | 476 |
Swell 3 Height (m) Direction Period (s) | SW 20 | SW 19 | SSW 23 | SW 18 | SW 18 | SW 18 | W 11 | W 11 | W 11 | W 10 | W 10 | W 9 | SSW 18 | W 9 | W 9 | SSW 23 | SSW 22 | S 16 |
| kJ | 15 | 15 | 53 | 13 | 12 | 49 | 10 | 21 | 20 | 31 | 47 | 43 | 246 | 40 | 39 | 179 | 270 | 132 |
Wind waves Height (m) Direction Period (s) | W 7 | W 7 | W 6 | W 4 | W 4 | W 4 | W 4 | WSW 4 | WSW 5 | WSW 5 | WSW 5 | WSW 5 | — | — | — | W 9 | WSW 5 | WSW 6 |
| kJ | 22 | 21 | 20 | 9 | 10 | 11 | 16 | 19 | 22 | 39 | 49 | 29 | — | — | — | 78 | 70 | 74 |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 19 | 19 | 54 | 54 | 19 | 204 | 859 | 859 | 54 | 19 | 15 | 0 | 15 | 15 | 14 | 19 | 44 | 19 |
Best forecast wave conditions in West Sri Lanka | ||||||||||||||||||
Best forecast wave conditions in Sri Lanka | ||||||||||||||||||
Header Global | ||||||||||||||||||
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