Surf Forecasts:
How big are the waves at Rivermouth (Hikkaduwa) today (21 Aug):
- Morning surf: Morning surf (21 Aug, local time) - 5.5ft (1.7m), 15s period with SSW swell.
- Afternoon surf: Afternoon surf (21 Aug, local time) - 5ft (1.6m), 14s period with S swell.
- Evening surf: Evening surf (21 Aug, local time) - 5ft (1.6m), 14s period with S swell.
The current surf forecast for Rivermouth (Hikkaduwa) at 7AM is: 1.7m 15s primary swell from a South-southwest direction and 0.6m 10s secondary swell from a West direction, 1.1m 6s secondary swell from a West direction (forecast issued at 10:30pm August 20). The wind direction is predicted to be cross-onshore.
| Time (+0530) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Aug) | 5.5ft (1.7m) | 15s |
| Afternoon (21 Aug) | 5ft (1.6m) | 14s |
| Evening (21 Aug) | 5ft (1.6m) | 14s |
Table - waves today at Rivermouth (Hikkaduwa). (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 34mm), heaviest during Thu night. Warm (max 28°C on Sat morning, min 26°C on Thu night). Wind will be generally light. | ||||||||||||||||||
Thu 20 | Friday 21 | Saturday 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 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | S 14 | S 14 | S 14 | S 17 | S 17 | S 17 | S 15 | S 15 | S 15 | S 15 | S 14 |
Wave Graph  | ||||||||||||||||||
 kJ | 1976 | 1703 | 1460 | 1441 | 1275 | 1121 | 1106 | 1063 | 899 | 1208 | 675 | 1865 | 1859 | 1428 | 1409 | 1258 | 1225 | 1158 |
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 | 6:37AM0.43m | 4:43PM0.34m | 8:50AM0.38m | |||||||||||||||
Low Tide | 11:35PM0.15m | 12:31PM0.29m | 11:48PM0.20m | 8:59PM0.24m | ||||||||||||||
 | |  | |  | | | | | | | |  |  | | |  | | |
 | — | — | — | 6:03 | — | — | — | — | — | — | — | 6:03 | — | — | — | — | — | — |
 | — | — | — | — | — | — | — | 6:21 | — | — | — | — | — | — | — | 6:21 | — | — |
mm | 4 | 4 | 6 | 5 | 3 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | — | — | — | — | — | — |
Temp °C | 27 | 26 | 26 | 26 | 27 | 27 | 27 | 27 | 26 | 26 | 27 | 27 | 27 | 28 | 28 | 27 | 27 | 27 |
Feels °C | 29 | 27 | 27 | 27 | 29 | 28 | 27 | 28 | 28 | 28 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 30 |
Swell 1 Height (m) Direction Period (s) | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | S 14 | S 14 | S 14 | S 13 | S 17 | S 17 | S 15 | S 15 | S 15 | S 15 | S 14 |
| kJ | 1976 | 1703 | 1460 | 1441 | 1275 | 1121 | 1106 | 1063 | 899 | 1208 | 653 | 1865 | 1859 | 1428 | 1409 | 1258 | 1225 | 1158 |
Swell 2 Height (m) Direction Period (s) | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | W 9 | S 19 | W 9 | S 17 | W 8 | S 11 | S 18 | S 26 | S 26 | S 24 | SSW 24 |
| kJ | 71 | 73 | 74 | 74 | 71 | 70 | 67 | 64 | 450 | 57 | 675 | 37 | 332 | 155 | 13 | 13 | 44 | 184 |
Swell 3 Height (m) Direction Period (s) | — | — | SE 8 | W 10 | S 21 | S 22 | S 18 | S 18 | W 9 | S 18 | W 9 | SSW 13 | SE 7 | S 26 | S 26 | S 26 | S 24 | S 10 |
| kJ | — | — | 3 | 49 | 35 | 36 | 99 | 248 | 60 | 332 | 39 | 59 | 2 | 13 | 13 | 13 | 44 | 151 |
Wind waves Height (m) Direction Period (s) | W 6 | W 6 | W 6 | W 6 | W 6 | W 6 | W 6 | W 6 | W 6 | WNW 6 | W 6 | W 6 | W 6 | WNW 7 | WNW 7 | W 7 | W 6 | W 6 |
| kJ | 108 | 96 | 92 | 77 | 80 | 83 | 69 | 64 | 64 | 56 | 69 | 91 | 123 | 135 | 139 | 126 | 132 | 132 |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 768 | 210 | 338 | 338 | 338 | 650 | 859 | 343 | 210 | 343 | 210 | 338 | 210 | 211 | 210 | 343 | 210 | 54 |
Best forecast wave conditions in West Sri Lanka | ||||||||||||||||||
Best forecast wave conditions in Sri Lanka | ||||||||||||||||||
Header Global | ||||||||||||||||||
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