Hawaii County Surf Forecast for August 21, 2023
Forecast for Big Island Windward and Southeast
| Shores | Today | Tuesday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| AM | PM | AM | PM | |
| North Facing | 0-2 | 0-2 | 0-2 | 0-2 |
| East Facing | 2-4 | 3-5 | 5-7 | 6-8 |
| South Facing | 2-4 | 2-4 | 2-4 | 2-4 |
| Weather | Mostly cloudy. Numerous showers and a slight chance of thunderstorms. |
||||||
|---|---|---|---|---|---|---|---|
| High Temperature | In the mid 80s. | ||||||
| Winds | Northeast winds 5 to 10 mph. | ||||||
|
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| Sunrise | 6:02 AM HST. | ||||||
| Sunset | 6:45 PM HST. | ||||||
| Weather | Mostly cloudy. Numerous showers and a slight chance of thunderstorms. |
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|---|---|---|---|---|---|
| Low Temperature | In the lower 70s. | ||||
| Winds | East winds around 5 mph. | ||||
|
|||||
| Weather | Mostly cloudy until 12 PM, then mostly sunny. Numerous showers. |
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|---|---|---|---|---|---|---|---|
| High Temperature | In the mid 80s. | ||||||
| Winds | East winds 5 to 10 mph. | ||||||
|
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| Sunrise | 6:02 AM HST. | ||||||
| Sunset | 6:44 PM HST. | ||||||
Forecast for Big Island Leeward
| Shores | Today | Tuesday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| AM | PM | AM | PM | |
| West Facing | 1-3 | 1-3 | 1-3 | 1-3 |
| South Facing | 2-4 | 2-4 | 2-4 | 2-4 |
| Weather | Mostly cloudy until 9 PM, then partly cloudy. Scattered showers. |
|---|---|
| Low Temperature | In the mid 70s. |
| Winds | Northwest winds around 5 mph, becoming east after midnight. |
| Weather | Sunny until 12 PM, then partly sunny. Scattered showers. |
|---|---|
| High Temperature | In the upper 80s. |
| Winds | South winds around 5 mph, becoming west in the afternoon. |
| Sunrise | 6:06 AM HST. |
| Sunset | 6:48 PM HST. |
Swell Summary
Surf along all shores will remain relatively small today. A long- period east swell is expected to arrive by tonight, peak near 4 feet Tuesday and Wednesday, then lower Wednesday night and Thursday. As the longer-period E swell diminishes, short-period trade wind swell will build to near seasonal norms. A small, medium-period south-southeast swell, with a a pinch of southwest swell energy as well, will support small surf along south facing shores the next couple of days.
NORTH EAST
am 
pm 
Surf: Knee to waist high E short period wind swell.
Conditions: Light sideshore texture in the morning with SSE winds 10-15mph. Sideshore texture/chop conditions for the afternoon with the winds shifting to the SE.
NORTH WEST
am 
pm 
Surf: Minimal (ankle high or less) surf.
Conditions: Clean in the morning with SSE winds 5-10mph. Light sideshore texture conditions for the afternoon with the winds shifting to the SW.
WEST
am pm
Surf: Minimal (ankle high or less) surf.
Conditions: Glassy in the morning with E winds less than 5mph. Semi glassy/semi bumpy conditions for the afternoon with the winds shifting to the SW.
SOUTH EAST
am pm
Surf: Ankle high E short period wind swell in the morning builds to knee to waist high for the afternoon.
Conditions: Light sideshore texture in the morning with NE 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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