Surf Forecasts:
How big are the waves at Waimanalo today (21 Jul):
- Afternoon surf: Afternoon surf (21 Jul, local time) - 4.5ft (1.3m), 7s period with ENE swell.
- Evening surf: Evening surf (21 Jul, local time) - 3.5ft (1.1m), 7s period with NE swell.
The current surf forecast for Waimanalo at 11PM is: 1.2m 7s primary swell from a East-northeast direction and 0.5m 13s secondary swell from a East direction (forecast issued at 07:00pm July 21). An open ocean swell of 0.5m 14s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Jul) | - | - |
| Afternoon (21 Jul) | 4.5ft (1.3m) | 7s |
| Evening (21 Jul) | 3.5ft (1.1m) | 7s |
Table - waves today at Waimanalo. (Swell directed towards the surf break)
Short Range ForecastSome drizzle, heaviest during Fri morning. Warm (max 25°C on Tue night, min 24°C on Wed night). Mainly fresh winds. | |||||||||||||||||||
Tue 21 | Wednesday 22 | Thursday 23 | |||||||||||||||||
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 | NE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | E 12 | E 12 | E 12 | ENE 6 | ENE 6 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 |
Wave Graph  | |||||||||||||||||||
 kJ | 147 | 105 | 140 | 162 | 176 | 195 | 220 | 240 | 189 | 161 | 142 | 139 | 155 | 252 | 384 | 316 | 307 | 298 | 374 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on | on | cross-on | cross-on | cross-on | cross-on | on | cross-on | on | cross-on |
High Tide | 4:59PM0.41m | 12:21PM0.51m | 12:58PM0.56m | ||||||||||||||||
Low Tide | 3:19PM0.35m | 2:49AM0.05m | 3:43AM0.04m | ||||||||||||||||
 |  | | |  | | | | | | | | |  | | | | | | |
 | — | — | — | — | 6:00 | — | — | — | — | — | — | — | 6:00 | — | — | — | — | — | — |
 | 7:14 | — | — | — | — | — | — | — | 7:14 | — | — | — | — | — | — | — | 7:13 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 24 | 24 | 25 | 24 | 24 | 25 | 25 | 25 | 24 | 24 |
Feels °C | 24 | 25 | 25 | 25 | 24 | 23 | 22 | 22 | 22 | 21 | 21 | 23 | 22 | 21 | 22 | 22 | 22 | 20 | 20 |
Swell 1 Height (m) Direction Period (s) | S 14 | E 7 | S 14 | E 13 | E 12 | E 12 | E 12 | E 12 | E 11 | E 12 | E 12 | E 12 | E 12 | S 13 | S 12 | S 13 | SSE 13 | SSW 19 | SSW 19 |
| kJ | 97 | 40 | 91 | 84 | 109 | 103 | 103 | 100 | 92 | 129 | 134 | 139 | 139 | 51 | 44 | 52 | 58 | 125 | 122 |
Swell 2 Height (m) Direction Period (s) | E 14 | S 14 | E 13 | S 14 | S 13 | S 13 | SSE 13 | SSE 13 | SSE 13 | S 13 | S 13 | S 13 | S 13 | SSW 21 | SSW 20 | SSW 20 | SSW 20 | S 13 | S 11 |
| kJ | 37 | 95 | 85 | 89 | 88 | 87 | 59 | 58 | 58 | 83 | 53 | 52 | 52 | 83 | 77 | 75 | 75 | 29 | 21 |
Swell 3 Height (m) Direction Period (s) | E 11 | E 14 | E 11 | S 26 | S 26 | SSW 24 | S 11 | S 10 | S 10 | SSW 22 | SSW 22 | SSW 22 | SSW 21 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | S 13 |
| kJ | 22 | 33 | 9 | 53 | 51 | 56 | 20 | 19 | 19 | 98 | 92 | 91 | 89 | 10 | 10 | 10 | 9 | 9 | 31 |
Wind waves Height (m) Direction Period (s) | ENE 7 | NE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 6 | ENE 6 | ENE 6 | ENE 6 | ENE 6 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 |
| kJ | 147 | 105 | 140 | 162 | 176 | 195 | 220 | 240 | 189 | 161 | 142 | 137 | 155 | 252 | 384 | 316 | 307 | 298 | 374 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 15 | 15 | 15 | 15 | 44 | 45 | 50 | 50 | 45 | 44 | 44 | 44 | 44 | 44 | 50 | 56 | 56 | 50 | 52 |
Best forecast wave conditions in Oahu | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
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