Surf Forecasts:
How big are the waves at Waimanalo today (18 Aug):
- Morning surf: Morning surf (18 Aug, local time) - 4.5ft (1.4m), 7s period with ENE swell.
- Afternoon surf: Afternoon surf (18 Aug, local time) - 4ft (1.2m), 7s period with ENE swell.
- Evening surf: Evening surf (18 Aug, local time) - 3.5ft (1.1m), 7s period with ENE swell.
The current surf forecast for Waimanalo at 1PM is: 1.2m 7s primary swell from a East-northeast direction (forecast issued at 07:00am August 18). An open ocean swell of 0.4m 13s is not directed at the surf break, a second open ocean swell of 0.1m 17s is not directed at the surf break. The wind direction is predicted to be onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Aug) | 4.5ft (1.4m) | 7s |
| Afternoon (18 Aug) | 4ft (1.2m) | 7s |
| Evening (18 Aug) | 3.5ft (1.1m) | 7s |
Table - waves today at Waimanalo. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 26°C on Thu afternoon, min 24°C on Tue night). Wind will be generally light. | |||||||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | |||||||||||||||||||||
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) | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 7 | E 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | E 8 | E 8 | E 8 | E 8 | E 8 | NE 7 | ENE 7 | ENE 7 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 149 | 168 | 173 | 156 | 140 | 140 | 147 | 172 | 169 | 124 | 112 | 86 | 149 | 149 | 172 | 102 | 78 | 76 | 74 | 55 | 79 | 142 | 73 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | cross-on | on | on | on | cross-on | cross-on |
High Tide | 8:02AM0.45m | 4:17PM0.43m | 10:23AM0.47m | 11:48AM0.51m | |||||||||||||||||||
Low Tide | 12:27PM0.33m | 00:26AM0.08m | 1:15AM0.09m | ||||||||||||||||||||
 |  | | | |  | | | |  | | | | | | | | | | | | | | |
 | 6:09 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — |
 | — | — | — | — | 6:58 | — | — | — | — | — | — | — | 6:58 | — | — | — | — | — | — | — | 6:57 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 24 | 24 | 24 | 25 | 25 | 25 | 25 | 24 | 24 | 25 | 25 | 25 | 26 | 26 | 26 | 26 |
Feels °C | 24 | 23 | 24 | 23 | 24 | 24 | 24 | 23 | 23 | 24 | 25 | 25 | 25 | 26 | 24 | 25 | 27 | 27 | 26 | 28 | 28 | 29 | 29 |
Swell 1 Height (m) Direction Period (s) | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | NNE 7 | S 12 | NE 6 | E 8 | S 12 | S 12 | S 12 | E 8 | E 8 | E 8 | E 8 | E 8 | NE 7 | ENE 7 | ENE 7 |
| kJ | 55 | 54 | 54 | 30 | 30 | 30 | 29 | 29 | 9 | 11 | 43 | 86 | 11 | 11 | 11 | 102 | 78 | 76 | 74 | 55 | 79 | 142 | 73 |
Swell 2 Height (m) Direction Period (s) | E 9 | SW 16 | SW 17 | SW 18 | SW 18 | SW 18 | NNE 7 | NNE 7 | S 12 | SSE 8 | S 12 | NE 6 | SSE 9 | SSW 16 | SW 16 | NNE 6 | NE 6 | NE 6 | NE 6 | NE 6 | E 8 | SSW 17 | NNE 7 |
| kJ | 15 | 11 | 11 | 12 | 12 | 12 | 5 | 5 | 26 | 7 | 11 | 40 | 8 | 26 | 10 | 44 | 40 | 40 | 40 | 39 | 57 | 28 | 57 |
Swell 3 Height (m) Direction Period (s) | N 7 | N 7 | N 7 | W 13 | W 13 | W 11 | SW 18 | SW 18 | SE 10 | SW 17 | SSE 9 | S 12 | SW 16 | SE 9 | SE 10 | S 12 | S 12 | SSW 18 | SSW 18 | SSW 18 | SSW 18 | S 12 | SSW 16 |
| kJ | 1 | 1 | 1 | 3 | 3 | 3 | 12 | 12 | 4 | 11 | 8 | 11 | 11 | 3 | 4 | 11 | 11 | 30 | 31 | 31 | 30 | 11 | 27 |
Wind waves Height (m) Direction Period (s) | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 7 | E 8 | — | ENE 8 | ENE 8 | ENE 8 | — | — | — | — | — | — | — | — |
| kJ | 149 | 168 | 173 | 156 | 140 | 140 | 147 | 172 | 169 | 124 | 112 | — | 149 | 149 | 172 | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 15 | 44 | 44 | 44 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 9 | 15 | 21 | 9 | 9 | 7 | 7 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||||
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