Surf Forecasts:
How big are the waves at Rivermouth (Hikkaduwa) today (18 Aug):
- Morning surf: Morning surf (18 Aug, local time) - 7ft (2.2m), 19s period with SSW swell.
- Afternoon surf: Afternoon surf (18 Aug, local time) - 7ft (2.2m), 19s period with SSW swell.
- Evening surf: Evening surf (18 Aug, local time) - 8ft (2.4m), 18s period with SSW swell.
The current surf forecast for Rivermouth (Hikkaduwa) at 11AM is: 2.2m 19s primary swell from a South-southwest direction and 0.6m 10s secondary swell from a South-southeast direction, 1.5m 6s secondary swell from a West direction (forecast issued at 04:30am August 18). The wind direction is predicted to be cross-onshore.
| Time (+0530) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Aug) | 7ft (2.2m) | 19s |
| Afternoon (18 Aug) | 7ft (2.2m) | 19s |
| Evening (18 Aug) | 8ft (2.4m) | 18s |
Table - waves today at Rivermouth (Hikkaduwa). (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 19mm), heaviest on Thu night. Warm (max 28°C on Tue morning, min 26°C on Tue night). Wind will be generally light. | ||||||||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | ||||||||||||||||||||||
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 | 8 PM | 11 PM | |
Swell Height Map |  |  |  |  |  |  |  |  |  | |||||||||||||||
Wave Height (m) Direction Period (s) | SSW 21 | SSW 19 | SSW 19 | SSW 19 | SSW 19 | SSW 19 | SSW 18 | SSW 18 | SSW 18 | SSW 18 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 2757 | 2753 | 3688 | 3650 | 3575 | 3463 | 3443 | 3432 | 3393 | 3393 | 3561 | 2408 | 2136 | 1896 | 2164 | 3377 | 2980 | 2455 | 2216 | 1968 | 2281 | 2054 | 1795 | 1703 |
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 | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 5:04AM0.61m | 4:47PM0.53m | 5:31AM0.56m | 5:05PM0.47m | 6:00AM0.50m | 5:13PM0.40m | ||||||||||||||||||
Low Tide | 10:56AM0.16m | 10:55PM0.06m | 11:23AM0.20m | 11:16PM0.10m | 11:52AM0.24m | |||||||||||||||||||
 | |  | |  | |  | | | | | | | | | | | | | | | | | | |
 | — | 6:03 | — | — | — | — | — | — | — | 6:03 | — | — | — | — | — | — | — | 6:03 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:22 | — | — | — | — | — | — | — | 6:22 | — | — | — | — | — | — | — | 6:21 | — | — |
mm | 4 | 4 | 1 | 1 | — | — | — | — | — | — | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | — | 1 |
Temp °C | 26 | 26 | 27 | 28 | 28 | 27 | 27 | 27 | 26 | 26 | 27 | 28 | 28 | 27 | 27 | 26 | 26 | 26 | 27 | 28 | 28 | 27 | 27 | 27 |
Feels °C | 28 | 28 | 29 | 30 | 29 | 29 | 30 | 30 | 28 | 28 | 29 | 29 | 29 | 28 | 30 | 28 | 28 | 27 | 28 | 29 | 29 | 28 | 29 | 29 |
Swell 1 Height (m) Direction Period (s) | SSW 21 | SSW 19 | SSW 19 | SSW 19 | SSW 19 | SSW 19 | SSW 18 | SSW 18 | SSW 18 | SSW 18 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 |
| kJ | 2757 | 2753 | 3688 | 3650 | 3575 | 3463 | 3443 | 3432 | 3393 | 3393 | 3561 | 2408 | 2136 | 1896 | 2164 | 3377 | 2980 | 2455 | 2216 | 1968 | 2281 | 2054 | 1795 | 1703 |
Swell 2 Height (m) Direction Period (s) | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | W 9 | SSE 9 | SSE 9 | SSE 9 | W 9 | S 19 | S 18 | S 18 | S 17 | — | W 8 | S 12 | S 12 | S 12 | W 9 | W 10 | W 10 | W 10 |
| kJ | 111 | 111 | 85 | 75 | 74 | 72 | 295 | 49 | 49 | 48 | 194 | 913 | 1328 | 1455 | 1344 | — | 52 | 228 | 224 | 224 | 45 | 67 | 71 | 73 |
Swell 3 Height (m) Direction Period (s) | SSW 14 | SSW 15 | SSE 10 | SSE 10 | SSW 13 | — | SSE 10 | S 9 | S 21 | — | SSE 9 | SSE 9 | SSE 9 | — | — | — | W 8 | W 9 | W 9 | — | — | — | — | — |
| kJ | 140 | 188 | 109 | 107 | 114 | — | 71 | 43 | 323 | — | 47 | 31 | 44 | — | — | — | 52 | 64 | 45 | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | W 9 | W 6 | W 6 | W 6 | W 9 | W 9 | — | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 6 | W 6 | W 6 | W 6 | W 6 | W 6 | W 6 | W 6 | W 6 | W 6 |
| kJ | 334 | 149 | 164 | 181 | 334 | 341 | — | 244 | 239 | 268 | 262 | 257 | 257 | 245 | 92 | 105 | 91 | 130 | 154 | 164 | 115 | 111 | 92 | 80 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 210 | 210 | 210 | 207 | 741 | 741 | 27 | 54 | 210 | 338 | 210 | 209 | 859 | 859 | 859 | 751 | 210 | 210 | 210 | 204 | 204 | 209 | 209 | 209 |
Best forecast wave conditions in West Sri Lanka | ||||||||||||||||||||||||
Best forecast wave conditions in Sri Lanka | ||||||||||||||||||||||||
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