Hawaii County Surf Forecast for August 15, 2025
Forecast for Big Island Windward and Southeast
| Shores | Tonight | Friday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| PM | AM | AM | PM | |
| North Facing | 1-3 | 1-3 | 1-3 | 1-3 |
| East Facing | 4-6 | 3-5 | 4-6 | 4-6 |
| South Facing | 1-3 | 2-4 | 2-4 | 2-4 |
| Weather | Mostly cloudy. Scattered showers. | |||||
|---|---|---|---|---|---|---|
| Low Temperature | In the lower 70s. | |||||
| Winds | East winds 5 to 10 mph, becoming northwest after midnight. |
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| Weather | Mostly sunny. Isolated showers. | |||||
|---|---|---|---|---|---|---|
| High Temperature | In the mid 80s. | |||||
| Winds | East winds 5 to 10 mph. | |||||
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| Sunrise | 6:01 AM HST. | |||||
| Sunset | 6:49 PM HST. | |||||
Forecast for Big Island Leeward
| Shores | Tonight | Friday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| PM | AM | AM | PM | |
| West Facing | 0-2 | 1-3 | 1-3 | 1-3 |
| South Facing | 1-3 | 2-4 | 2-4 | 2-4 |
Swell Summary
Surf along south facing shores will remain small through tonight with mainly background medium to long period energy. Surf should see a slight bump early Friday and hold through early next week as a series of small long period southerly energy fills in. A small, medium period northeast swell will keep surf along east facing shores elevated through the weekend. As this swell declines, the short period energy will fill in as trade winds increase into the weekend. North facing shores will remain flat to tiny through the forecast period except for areas that may be exposed to the small northeast swell.
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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