Surf Forecasts:
How big are the waves at Grandma's today (13 Jun):
- Morning surf: Morning surf (13 Jun, local time) - 2ft (0.6m), 23s period with SSW swell.
- Afternoon surf: Afternoon surf (13 Jun, local time) - 2.5ft (0.7m), 22s period with SSW swell.
- Evening surf: Evening surf (13 Jun, local time) - 3ft (0.9m), 21s period with SSW swell.
The current surf forecast for Grandma's at 7PM is: 0.8m 21s primary swell from a South-southwest direction and 0.5m 13s secondary swell from a South direction (forecast issued at 01:00pm June 13). An open ocean swell of 0.8m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore and the swell rating is 3.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Jun) | 2ft (0.6m) | 23s |
| Afternoon (13 Jun) | 2.5ft (0.7m) | 22s |
| Evening (13 Jun) | 3ft (0.9m) | 21s |
Table - waves today at Grandma's. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 27°C on Mon afternoon, min 23°C on Sun night). Wind will be generally light. | ||||||||||||||||||||||||
Sat 13 | Sunday 14 | Monday 15 | Tue 16 | |||||||||||||||||||||
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 | 2 AM | 5 AM | 8 AM | |
Swell Height Map |  |  |  |  |  |  |  |  |  | |||||||||||||||
Wave Height (m) Direction Period (s) | SSW 22 | SSW 22 | SSW 21 | SSW 21 | SSW 21 | SSW 20 | SSW 19 | SSW 19 | SSW 19 | SSW 18 | SSW 18 | SSW 18 | SSW 18 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 14 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 427 | 408 | 521 | 511 | 823 | 550 | 716 | 716 | 838 | 753 | 713 | 705 | 697 | 795 | 749 | 714 | 590 | 575 | 561 | 546 | 494 | 474 | 462 | 449 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | cross-off | cross-off | cross-off | off | off | cross-off | glassy | glassy | off | cross-off | off | off | off | off | off | glassy | off | off | off | off | off | off |
High Tide | 3:18PM0.86m | 3:07AM0.24m | 4:04PM0.89m | 4:02AM0.23m | 4:51PM0.89m | 4:58AM0.23m | ||||||||||||||||||
Low Tide | 10:23PM0.06m | 8:24AM-0.11m | 11:15PM0.04m | 9:11AM-0.10m | 00:03AM0.02m | |||||||||||||||||||
 |  | |  | | | | | | | | | | | | | | | | | | | | | |
 | — | — | — | — | — | — | 5:43 | — | — | — | — | — | — | — | 5:45 | — | — | — | — | — | — | — | 5:45 | — |
 | — | — | 7:07 | — | — | — | — | — | — | — | 7:07 | — | — | — | — | — | — | — | 7:07 | — | — | — | — | 7:07 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 26 | 26 | 25 | 24 | 24 | 24 | 25 | 26 | 26 | 26 | 25 | 24 | 23 | 23 | 24 | 26 | 27 | 26 | 24 | 24 | 23 | 23 | 25 |
Feels °C | 26 | 26 | 26 | 25 | 24 | 25 | 25 | 26 | 27 | 28 | 27 | 26 | 25 | 24 | 23 | 23 | 26 | 28 | 26 | 24 | 25 | 24 | 24 | 26 |
Swell 1 Height (m) Direction Period (s) | SSW 22 | SSW 22 | SSW 21 | SSW 21 | SSW 21 | SSW 20 | SSW 19 | SSW 19 | SSW 19 | SSW 18 | SSW 18 | SSW 18 | SSW 18 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 14 |
| kJ | 427 | 408 | 521 | 511 | 823 | 550 | 716 | 716 | 838 | 753 | 713 | 705 | 697 | 795 | 749 | 714 | 590 | 575 | 561 | 546 | 494 | 474 | 462 | 449 |
Swell 2 Height (m) Direction Period (s) | SW 18 | S 13 | S 13 | S 13 | NNE 4 | SW 17 | SW 16 | SSE 12 | SSE 12 | S 12 | S 12 | SW 12 | S 12 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 11 | SSE 11 | SSE 11 | SSE 11 | SSE 11 | NNW 12 |
| kJ | 155 | 88 | 88 | 87 | 10 | 138 | 91 | 50 | 50 | 47 | 47 | 37 | 46 | 48 | 47 | 47 | 27 | 27 | 25 | 25 | 24 | 24 | 11 | 13 |
Swell 3 Height (m) Direction Period (s) | S 13 | SW 18 | SW 18 | SW 17 | S 13 | S 13 | S 12 | SW 16 | SW 12 | SW 12 | SW 12 | S 12 | SW 12 | WSW 12 | WSW 11 | NNW 12 | SW 11 | SSW 11 | WSW 11 | W 11 | WSW 11 | WSW 11 | N 10 | SSE 11 |
| kJ | 88 | 154 | 79 | 147 | 55 | 53 | 48 | 66 | 37 | 22 | 36 | 46 | 36 | 27 | 12 | 14 | 18 | 11 | 12 | 9 | 11 | 11 | 8 | 11 |
Wind waves Height (m) Direction Period (s) | NNW 9 | N 3 | N 4 | NNE 4 | E 7 | E 7 | SSE 12 | SSE 12 | — | — | — | — | — | E 12 | E 4 | W 11 | E 4 | E 4 | E 4 | E 4 | E 4 | E 4 | E 4 | E 4 |
| kJ | 8 | 4 | 17 | 24 | 23 | 33 | 82 | 94 | — | — | — | — | — | 141 | 17 | 21 | 21 | 16 | 11 | 14 | 17 | 26 | 18 | 13 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 4 | 4 | 12 | 12 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 12 | 12 | 4 | 4 | 4 | 12 | 4 | 4 | 4 | 4 |
Best forecast wave conditions in Maui | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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