Hawaii County Surf Forecast for September 19, 2021
Forecast for Big Island Leeward
| Shores | Today | Monday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| AM | PM | AM | PM | |
| West Facing | 0-2 | 0-2 | 1-3 | 1-3 |
| South Facing | 2-4 | 2-4 | 2-4 | 1-3 |
| Weather | Mostly sunny until 12 PM, then mostly cloudy. Scattered showers. |
|---|---|
| High Temperature | In the mid 80s. |
| Winds | Northeast winds around 5 mph, becoming west in the afternoon. |
| Sunrise | 6:13 AM HST. |
| Sunset | 6:23 PM HST. |
| Weather | Mostly cloudy until 12 AM, then mostly clear. Scattered showers. |
|---|---|
| Low Temperature | In the upper 60s. |
| Winds | Light and variable winds, becoming northwest around 5 mph after midnight. |
| Weather | Mostly sunny. Scattered showers. |
|---|---|
| High Temperature | In the mid 80s. |
| Winds | Light and variable winds, becoming west around 5 mph in the afternoon. |
| Sunrise | 6:13 AM HST. |
| Sunset | 6:22 PM HST. |
Swell Summary
A series of small to moderate northwest swells are expected throughout this week with the first one arriving late Monday and peaking late Tuesday. Another similar sized swell is expected around next weekend. Surf along east facing shores will remain near average due to the breezy trades. A small long-period south swell is expected during the second half of the week.
NORTH EAST
am 
pm
Surf: Knee to waist high ENE short period wind swell with occasional stomach high sets.
Conditions: Sideshore texture/chop with SE winds 10-15mph in the morning shifting ESE 15-20mph in the afternoon.
NORTH WEST
am 
pm 
Surf: Minimal (ankle high or less) surf.
Conditions: Glassy in the early morning with E winds less than 5mph. Semi choppy conditions move in during the morning hours with the winds shifting WSW 5-10mph.
WEST
am pm 
Surf: Minimal (ankle high or less) surf.
Conditions: Clean in the morning with ENE winds less than 5mph. Semi glassy/semi bumpy conditions for the afternoon with the winds shifting to the SSW.
SOUTH EAST
am 
pm
Surf: Knee to waist high E short period wind swell.
Conditions: Sideshore texture/chop with NE winds 5-10mph.
Data Courtesy of NOAA.gov and SwellInfo.com
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