Surf Forecasts:
How big are the waves at Waimanalo today (19 Aug):
- Morning surf: Morning surf (19 Aug, local time) - 4ft (1.2m), 7s period with ENE swell.
- Afternoon surf: Afternoon surf (19 Aug, local time) - 2.5ft (0.8m), 8s period with E swell.
- Evening surf: Evening surf (19 Aug, local time) - 4ft (1.2m), 6s period with ENE swell.
The current surf forecast for Waimanalo at 9AM is: 1.2m 7s primary swell from a East-northeast direction (forecast issued at 01:00am August 19). An open ocean swell of 0.2m 12s is not directed at the surf break, a second open ocean swell of 0.2m 9s is not directed at the surf break. The wind direction is predicted to be onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 Aug) | 4ft (1.2m) | 7s |
| Afternoon (19 Aug) | 2.5ft (0.8m) | 8s |
| Evening (19 Aug) | 4ft (1.2m) | 6s |
Table - waves today at Waimanalo. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 27°C on Fri afternoon, min 24°C on Wed morning). Wind will be generally light. | ||||||||||||||||||||||||
Wednesday 19 | Thursday 20 | Friday 21 | ||||||||||||||||||||||
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) | E 8 | ENE 9 | ENE 7 | E 8 | E 8 | ENE 8 | ENE 6 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | NE 7 | NE 7 | NE 7 | ENE 7 | NE 7 | NE 7 | NE 7 | ENE 7 | ENE 7 | ENE 7 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 143 | 189 | 128 | 89 | 86 | 176 | 114 | 102 | 80 | 78 | 74 | 57 | 55 | 54 | 71 | 119 | 119 | 52 | 99 | 112 | 112 | 117 | 113 | 113 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | on | on | on | on | on | on | on | on | on | on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on |
High Tide | 10:23AM0.47m | 11:48AM0.51m | 12:32PM0.55m | |||||||||||||||||||||
Low Tide | 00:26AM0.08m | 1:15AM0.09m | 2:41AM0.09m | |||||||||||||||||||||
 | |  | | | | |  | | |  | | | | | | | | | | | | | | |
 | — | 6:09 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — | — | 6:11 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:58 | — | — | — | — | — | — | — | 6:57 | — | — | — | — | — | — | — | 6:55 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 24 | 24 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 26 | 25 | 25 | 25 | 26 | 26 | 27 | 26 | 26 |
Feels °C | 24 | 23 | 24 | 26 | 25 | 25 | 25 | 25 | 26 | 26 | 27 | 27 | 28 | 28 | 29 | 30 | 29 | 28 | 28 | 29 | 27 | 28 | 27 | 27 |
Swell 1 Height (m) Direction Period (s) | NNE 7 | NNE 7 | S 12 | NE 6 | NE 6 | S 12 | S 12 | E 8 | E 8 | E 8 | NNE 6 | NE 6 | NE 6 | NNE 7 | NE 7 | NE 7 | NE 7 | ENE 7 | NE 7 | NE 7 | E 9 | ESE 8 | ESE 8 | E 8 |
| kJ | 30 | 9 | 11 | 43 | 40 | 11 | 11 | 102 | 80 | 78 | 52 | 39 | 42 | 38 | 71 | 119 | 119 | 52 | 99 | 112 | 13 | 7 | 7 | 12 |
Swell 2 Height (m) Direction Period (s) | S 13 | S 12 | SSE 9 | S 12 | S 12 | SSE 9 | SW 16 | S 12 | NE 6 | NE 6 | E 8 | E 8 | E 8 | E 8 | E 7 | SSW 16 | SSW 17 | NNE 7 | SSW 17 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 |
| kJ | 29 | 26 | 8 | 11 | 11 | 8 | 10 | 11 | 58 | 61 | 74 | 57 | 55 | 54 | 37 | 27 | 27 | 46 | 29 | 29 | 29 | 25 | 25 | 25 |
Swell 3 Height (m) Direction Period (s) | NNE 7 | NE 7 | SW 17 | SSE 9 | SSE 9 | SW 16 | SSE 9 | SW 16 | S 12 | S 12 | SSW 18 | ENE 7 | ENE 7 | NE 7 | SSW 17 | S 12 | S 15 | SSW 17 | S 15 | S 15 | S 14 | SSE 8 | SSE 8 | S 16 |
| kJ | 5 | 9 | 11 | 8 | 8 | 11 | 7 | 10 | 11 | 11 | 30 | 4 | 9 | 12 | 28 | 11 | 17 | 29 | 17 | 17 | 16 | 7 | 7 | 19 |
Wind waves Height (m) Direction Period (s) | E 8 | ENE 9 | ENE 7 | E 8 | E 8 | ENE 8 | ENE 6 | NE 6 | — | — | — | — | — | — | — | — | — | — | — | — | NE 7 | ENE 7 | ENE 7 | ENE 7 |
| kJ | 143 | 189 | 128 | 89 | 86 | 176 | 114 | 54 | — | — | — | — | — | — | — | — | — | — | — | — | 112 | 117 | 113 | 113 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 9 | 9 | 7 | 9 | 9 | 7 | 7 | 7 | 9 | 9 | 9 | 15 | 15 | 15 | 15 |
Best forecast wave conditions in Oahu | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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