Hawaii County Surf Forecast for October 21, 2021
Photo Credit: James Grenz
Forecast for Big Island Leeward
| Shores | Today | Friday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| AM | PM | AM | PM | |
| West Facing | 2-4 | 3-5 | 3-5 | 3-5 |
| South Facing | 4-6 | 4-6 | 4-6 | 3-5 |
| Weather | Sunny. Isolated showers. |
|---|---|
| High Temperature | In the mid 80s. |
| Winds | Northeast winds around 5 mph, becoming west in the afternoon. |
| Sunrise | 6:21 AM HST. |
| Sunset | 5:56 PM HST. |
Swell Summary
The current north-northwest swell will continue to diminish into Friday, when a new north swell is expected to build. This swell has the potential to approach advisory levels as the surf peaks Friday night. A small to moderate northwest swell is possible Sunday and Monday. A slight increase in south swell is expected today. Increased trades over the weekend supporting a slight boost in short-period wind waves along east facing shores.
NORTH EAST
am 
pm
Surf: Minimal (ankle high or less) surf.
Conditions: Sideshore texture/chop with SE winds 10-15mph.
NORTH WEST
am 
pm
Surf: Minimal (ankle high or less) surf.
Conditions: Semi glassy in the morning with NE winds less than 5mph. Bumpy/semi bumpy conditions for the afternoon with the winds shifting NW 10-15mph.
WEST
am pm 
Surf: Minimal (ankle high or less) surf.
Conditions: Semi glassy in the morning with N winds less than 5mph. Semi choppy conditions for the afternoon with the winds shifting NW 10-15mph. Glassy conditions are expected by late afternoon with WSW winds less than 5mph.
SOUTH EAST
am pm
Surf: Small scale (ankle to knee high) surf.
Conditions: Semi glassy in the morning with NNE winds 5-10mph. Semi choppy conditions for the afternoon with the winds shifting to the ENE.
Data Courtesy of NOAA.gov and SwellInfo.com
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