Surf Forecasts:
How big are the waves at H-Reef today (18 Aug):
- Morning surf: Morning surf (18 Aug, local time) - 4.5ft (1.3m), 8s period with ENE swell.
- Afternoon surf: Afternoon surf (18 Aug, local time) - 4ft (1.2m), 8s period with ENE swell.
- Evening surf: Evening surf (18 Aug, local time) - 3.5ft (1.0m), 8s period with E swell.
The current surf forecast for H-Reef at 7AM is: 1.3m 8s primary swell from a East-northeast direction and 0.1m 11s secondary swell from a Northwest direction (forecast issued at 01:00am August 18). An open ocean swell of 0.1m 11s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Aug) | 4.5ft (1.3m) | 8s |
| Afternoon (18 Aug) | 4ft (1.2m) | 8s |
| Evening (18 Aug) | 3.5ft (1.0m) | 8s |
Table - waves today at H-Reef. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 26°C on Tue morning, min 24°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) | E 7 | ENE 8 | ENE 8 | E 8 | ENE 8 | ENE 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | ENE 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 7 | ENE 7 | NE 7 | NE 7 | NE 7 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 203 | 226 | 202 | 130 | 178 | 187 | 143 | 200 | 205 | 200 | 136 | 160 | 197 | 130 | 130 | 127 | 124 | 97 | 92 | 88 | 142 | 93 | 105 | 79 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross-on | cross | cross | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross-on | cross-on | on | cross-on | glassy | glassy |
High Tide | 6:50AM0.65m | 4:30PM0.61m | 8:31AM0.64m | 11:00AM0.67m | ||||||||||||||||||||
Low Tide | 11:35PM0.20m | 11:55AM0.52m | 00:05AM0.21m | 00:47AM0.23m | ||||||||||||||||||||
 | |  | | | | | | | | | | | | | |  | |  | | | | | | |
 | — | 6:05 | — | — | — | — | — | — | — | 6:05 | — | — | — | — | — | — | — | 6:05 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:52 | — | — | — | — | — | — | — | 6:52 | — | — | — | — | — | — | — | 6:51 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 24 | 25 | 26 | 26 | 25 | 25 | 24 | 24 | 24 | 25 | 26 | 26 | 26 | 25 | 25 | 25 | 24 | 25 | 26 | 26 | 26 | 25 | 25 |
Feels °C | 24 | 24 | 26 | 27 | 27 | 26 | 26 | 25 | 25 | 26 | 26 | 27 | 28 | 28 | 27 | 27 | 28 | 27 | 28 | 30 | 30 | 31 | 30 | 29 |
Swell 1 Height (m) Direction Period (s) | NE 8 | NW 11 | NW 11 | NE 7 | W 13 | W 13 | NE 7 | W 13 | NNE 7 | NNE 7 | NE 6 | NNE 6 | W 12 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 7 | ESE 9 | NE 7 | NE 7 | NE 7 |
| kJ | 24 | 5 | 5 | 51 | 3 | 3 | 51 | 13 | 5 | 9 | 34 | 23 | 11 | 130 | 130 | 127 | 124 | 97 | 92 | 88 | 8 | 93 | 105 | 79 |
Swell 2 Height (m) Direction Period (s) | NW 11 | W 12 | W 11 | W 13 | N 7 | N 7 | W 13 | N 8 | W 12 | W 12 | NNE 7 | NE 6 | W 17 | W 12 | NE 6 | NE 6 | NE 6 | NE 6 | NNE 7 | NNE 6 | W 18 | E 8 | E 8 | E 8 |
| kJ | 5 | 3 | 2 | 3 | 1 | 1 | 3 | 1 | 12 | 11 | 9 | 7 | 5 | 11 | 39 | 39 | 39 | 40 | 40 | 36 | 6 | 55 | 30 | 68 |
Swell 3 Height (m) Direction Period (s) | N 7 | N 7 | N 7 | N 7 | NW 10 | W 18 | NW 11 | N 7 | NW 11 | W 18 | W 12 | W 12 | W 7 | W 17 | W 12 | W 11 | W 11 | W 11 | W 11 | ESE 9 | W 11 | SE 9 | ESE 9 | W 17 |
| kJ | 1 | 1 | 1 | 1 | 4 | 6 | 5 | 1 | 4 | 6 | 11 | 11 | 1 | 5 | 11 | 10 | 2 | 2 | 2 | 8 | 2 | 3 | 8 | 6 |
Wind waves Height (m) Direction Period (s) | E 7 | ENE 8 | ENE 8 | E 8 | ENE 8 | ENE 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | ENE 8 | NE 6 | — | — | — | — | — | — | ENE 7 | — | — | — |
| kJ | 203 | 226 | 202 | 130 | 178 | 187 | 143 | 200 | 205 | 200 | 136 | 160 | 197 | 39 | — | — | — | — | — | — | 142 | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 23 | 23 | 23 | 9 | 23 | 23 | 25 | 9 | 9 | 2 | 2 | 9 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 23 | 9 | 23 | 0 | 0 |
Best forecast wave conditions in Maui | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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