Surf Forecasts:
How big are the waves at Rivermouth (Hikkaduwa) today (20 Aug):
- Morning surf: Morning surf (20 Aug, local time) - 7ft (2.1m), 16s period with SSW swell.
- Afternoon surf: Afternoon surf (20 Aug, local time) - 7ft (2.2m), 16s period with SSW swell.
- Evening surf: Evening surf (20 Aug, local time) - 6.5ft (2.0m), 15s period with SSW swell.
The current surf forecast for Rivermouth (Hikkaduwa) at 6AM is: 2.2m 16s primary swell from a South-southwest direction and 0.9m 12s secondary swell from a South direction, 1.2m 6s secondary swell from a West-southwest direction (forecast issued at 10:30pm August 19). The wind direction is predicted to be cross-onshore.
| Time (+0530) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Aug) | 7ft (2.1m) | 16s |
| Afternoon (20 Aug) | 7ft (2.2m) | 16s |
| Evening (20 Aug) | 6.5ft (2.0m) | 15s |
Table - waves today at Rivermouth (Hikkaduwa). (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 52mm), heaviest during Wed night. Warm (max 28°C on Sat morning, min 26°C on Wed night). Wind will be generally light. | ||||||||||||||||||
Wed 19 | Thursday 20 | Friday 21 | ||||||||||||||||
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 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | S 14 | S 14 | SSW 14 | S 14 |
Wave Graph  | ||||||||||||||||||
 kJ | 2164 | 3377 | 2980 | 2455 | 2216 | 1968 | 2281 | 2054 | 1976 | 1703 | 1460 | 1292 | 1275 | 1121 | 1077 | 938 | 788 | 1081 |
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 | 6:00AM0.50m | 5:13PM0.40m | 6:37AM0.43m | 4:43PM0.34m | ||||||||||||||
Low Tide | 11:16PM0.10m | 11:52AM0.24m | 11:35PM0.15m | 12:31PM0.29m | ||||||||||||||
 | | | |  | | | | | | | | | | | | | | |
 | — | — | — | 6:03 | — | — | — | — | — | — | — | 6:03 | — | — | — | — | — | — |
 | — | — | — | — | — | — | — | 6:21 | — | — | — | — | — | — | — | 6:21 | — | — |
mm | 2 | 4 | 5 | 5 | 3 | 1 | 2 | 2 | 3 | 3 | 4 | 3 | 2 | 2 | 1 | 2 | 1 | 1 |
Temp °C | 26 | 26 | 26 | 26 | 27 | 27 | 27 | 27 | 26 | 26 | 26 | 26 | 27 | 27 | 27 | 27 | 27 | 27 |
Feels °C | 28 | 27 | 27 | 27 | 28 | 28 | 27 | 28 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 29 | 29 |
Swell 1 Height (m) Direction Period (s) | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | S 14 | S 14 | SSW 14 | S 14 |
| kJ | 2164 | 3377 | 2980 | 2455 | 2216 | 1968 | 2281 | 2054 | 1976 | 1703 | 1460 | 1292 | 1275 | 1121 | 1077 | 938 | 788 | 1081 |
Swell 2 Height (m) Direction Period (s) | S 17 | W 8 | W 8 | S 12 | S 12 | S 12 | — | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | S 18 | S 19 | W 9 |
| kJ | 1344 | 51 | 52 | 228 | 224 | 224 | — | 67 | 71 | 73 | 74 | 74 | 71 | 49 | 47 | 248 | 450 | 40 |
Swell 3 Height (m) Direction Period (s) | W 8 | — | — | W 9 | W 9 | — | — | — | — | — | SE 8 | S 23 | S 21 | S 22 | S 18 | W 9 | W 9 | S 18 |
| kJ | 51 | — | — | 59 | 60 | — | — | — | — | — | 3 | 10 | 35 | 36 | 99 | 45 | 42 | 332 |
Wind waves Height (m) Direction Period (s) | W 6 | WSW 6 | WSW 6 | WSW 6 | W 6 | W 6 | W 5 | W 5 | W 6 | W 6 | W 6 | W 6 | W 6 | W 6 | W 6 | W 6 | W 6 | W 6 |
| kJ | 91 | 91 | 91 | 94 | 91 | 105 | 113 | 85 | 86 | 86 | 105 | 108 | 115 | 115 | 119 | 112 | 112 | 80 |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 859 | 343 | 210 | 210 | 210 | 209 | 652 | 859 | 210 | 210 | 210 | 210 | 338 | 652 | 859 | 211 | 210 | 210 |
Best forecast wave conditions in West Sri Lanka | ||||||||||||||||||
Best forecast wave conditions in Sri Lanka | ||||||||||||||||||
Header Global | ||||||||||||||||||
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