Surf Forecasts:
How big are the waves at Grandma's today (19 Jun):
- Morning surf: Morning surf (19 Jun, local time) - 2.5ft (0.8m), 13s period with S swell.
- Afternoon surf: Afternoon surf (19 Jun, local time) - 2.5ft (0.8m), 13s period with S swell.
- Evening surf: Evening surf (19 Jun, local time) - 2.5ft (0.7m), 13s period with S swell.
The current surf forecast for Grandma's at 2AM is: 0.9m 14s primary swell from a South direction and 0.3m 19s secondary swell from a South-southwest direction (forecast issued at 07:00pm June 18). An open ocean swell of 0.9m 5s is not directed at the surf break. The wind direction is predicted to be glassy and the swell rating is 2.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 Jun) | 2.5ft (0.8m) | 13s |
| Afternoon (19 Jun) | 2.5ft (0.8m) | 13s |
| Evening (19 Jun) | 2.5ft (0.7m) | 13s |
Table - waves today at Grandma's. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastSome drizzle, heaviest during Thu night. Warm (max 27°C on Thu night, min 24°C on Fri night). Wind will be generally light. | ||||||||||||||||||||||||
Thu 18 | Friday 19 | Saturday 20 | Sun 21 | |||||||||||||||||||||
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 | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | |
Swell Height Map |  |  |  |  |  |  |  |  |  | |||||||||||||||
Wave Height (m) Direction Period (s) | S 14 | SSW 14 | S 14 | S 14 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 16 | S 12 | S 12 | S 16 | S 15 | S 15 | S 15 | SW 18 | S 14 | S 14 | S 13 | S 19 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 423 | 341 | 324 | 315 | 229 | 222 | 219 | 168 | 215 | 219 | 166 | 121 | 134 | 103 | 99 | 124 | 113 | 110 | 110 | 78 | 150 | 136 | 127 | 192 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | glassy | glassy | glassy | glassy | glassy | glassy | glassy | cross-off | cross-off | glassy | glassy | glassy | glassy | glassy | glassy | off | cross-off | off | cross-off | off | cross-off | cross-off | off |
High Tide | 7:10PM0.75m | 8:09AM0.30m | 7:56PM0.66m | 9:18AM0.36m | 8:42PM0.57m | 10:24AM0.43m | ||||||||||||||||||
Low Tide | 2:16AM0.02m | 12:44PM0.10m | 2:55AM0.01m | 1:54PM0.17m | 3:31AM0.01m | |||||||||||||||||||
 |  |  |  | |  | | | | | | | | | | | | | | | | | | | |
 | — | — | — | — | 5:45 | — | — | — | — | — | — | — | 5:45 | — | — | — | — | — | — | — | 5:46 | — | — | — |
 | 7:08 | — | — | — | — | — | — | — | 7:08 | — | — | — | — | — | — | — | 7:08 | — | — | — | — | — | — | 7:08 |
mm | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 27 | 26 | 26 | 25 | 26 | 27 | 27 | 27 | 26 | 25 | 24 | 24 | 25 | 27 | 27 | 27 | 25 | 25 | 24 | 24 | 25 | 27 | 27 |
Feels °C | 30 | 31 | 30 | 30 | 29 | 30 | 30 | 31 | 30 | 28 | 29 | 28 | 27 | 28 | 31 | 30 | 30 | 26 | 27 | 26 | 26 | 27 | 28 | 28 |
Swell 1 Height (m) Direction Period (s) | S 14 | SSW 14 | S 14 | S 14 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 12 | S 12 | S 12 | S 12 | S 12 | S 12 | S 12 | S 14 | S 14 | S 13 | S 13 |
| kJ | 423 | 341 | 324 | 315 | 229 | 222 | 219 | 168 | 215 | 219 | 166 | 121 | 116 | 103 | 99 | 69 | 67 | 67 | 68 | 67 | 150 | 136 | 127 | 125 |
Swell 2 Height (m) Direction Period (s) | NW 10 | SSW 20 | SSW 20 | SSW 19 | SSW 19 | SSW 19 | SSW 18 | SSW 18 | SSW 18 | SSW 18 | SSW 17 | SSW 16 | S 16 | SSW 16 | SSW 16 | S 16 | S 15 | S 15 | S 15 | S 15 | SW 18 | SSW 20 | SSW 19 | S 19 |
| kJ | 15 | 75 | 75 | 73 | 123 | 71 | 108 | 106 | 104 | 103 | 101 | 90 | 134 | 87 | 86 | 124 | 113 | 110 | 110 | 67 | 79 | 75 | 125 | 192 |
Swell 3 Height (m) Direction Period (s) | SSW 20 | NW 10 | NW 10 | NNW 10 | NW 9 | ESE 5 | SE 5 | SE 5 | NNW 9 | NNW 9 | SSE 6 | ESE 5 | NNW 9 | ESE 5 | ESE 5 | NW 8 | NNE 4 | S 21 | NNW 8 | SW 18 | ESE 5 | SSW 18 | SW 17 | SW 16 |
| kJ | 39 | 15 | 15 | 9 | 14 | 3 | 4 | 4 | 8 | 8 | 3 | 3 | 8 | 2 | 2 | 3 | 2 | 36 | 6 | 78 | 2 | 30 | 11 | 10 |
Wind waves Height (m) Direction Period (s) | E 5 | E 5 | E 5 | E 5 | E 5 | E 5 | E 5 | E 5 | ESE 5 | ESE 5 | E 5 | E 5 | E 5 | E 5 | — | E 5 | ESE 4 | NNW 8 | WNW 10 | E 5 | E 5 | E 4 | E 4 | N 7 |
| kJ | 26 | 21 | 35 | 43 | 34 | 62 | 65 | 53 | 37 | 22 | 34 | 33 | 37 | 35 | — | 2 | 22 | 6 | 9 | 42 | 52 | 33 | 22 | 10 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 14 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
Best forecast wave conditions in Maui | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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