Hawaii County Surf Forecast for August 18, 2024
Forecast for Big Island Windward and Southeast
| Shores | Tonight | Sunday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| PM | AM | AM | PM | |
| North Facing | 1-3 | 1-3 | 1-3 | 1-3 |
| East Facing | 3-5 | 3-5 | 3-5 | 3-5 |
| South Facing | 2-4 | 2-4 | 2-4 | 2-4 |
| Weather | Mostly sunny until 6 PM, then mostly cloudy. Numerous showers. |
|||||
|---|---|---|---|---|---|---|
| Low Temperature | In the lower 70s. | |||||
| Winds | North winds 5 to 10 mph. | |||||
|
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| Weather | Partly sunny. Scattered showers. | |||||
|---|---|---|---|---|---|---|
| High Temperature | In the mid 80s. | |||||
| Winds | Northeast winds around 10 mph. | |||||
|
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| Sunrise | 6:01 AM HST. | |||||
| Sunset | 6:47 PM HST. | |||||
Forecast for Big Island Leeward
| Shores | Tonight | Sunday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| PM | AM | AM | PM | |
| West Facing | 1-3 | 1-3 | 2-4 | 2-4 |
| South Facing | 2-4 | 2-4 | 2-4 | 2-4 |
Swell Summary
The ongoing small south swell will further decline into the evening with a small southeastern pulse lingering through tonight. A moderate size, longer period more due south swell will arrive by Monday morning and fill in through the day, slowly falling off through the middle of the week. Seasonally flat to very small north-facing shore surf is expected through early next week. There is a possibility of a mid week arrival of a small, long period northwest swell originating from Typhoon Ampil currently located a few hundred miles east of northern Japan. East shore surf will remain somewhat elevated the next few days in response to stronger trades.
NORTH EAST
am 
pm 
Surf: Chest to shoulder high N short period wind swell for the morning going more NNE and building into the chest to head range in the afternoon.
Conditions: Bumpy/choppy with NNE winds 15-20mph in the morning shifting NNW for the afternoon.
NORTH WEST
am 
pm
Surf: Waist to chest high N short period wind swell.
Conditions: Choppy/disorganized with NNE winds 10-15mph in the morning increasing to 20-25mph in the afternoon.
WEST
am 
pm 
Surf: Knee high NW short period wind swell in the morning with occasional thigh high sets. This drops a bit in the afternoon.
Conditions: Glassy in the morning with ESE winds less than 5mph. Semi glassy conditions for the afternoon with the winds shifting to the SSE.
SOUTH EAST
am 
pm 
Surf: Knee high ENE short period wind swell in the morning builds in the afternoon with occasional sets up to waist high.
Conditions: Sideshore/choppy with NNE winds 15-20mph in the morning shifting N 20-25mph in the afternoon.
Data Courtesy of NOAA.gov and SwellInfo.com
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