Hawaii County Surf Forecast for August 16, 2025
Forecast for Big Island Windward and Southeast
| Shores | Tonight | Saturday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| PM | AM | AM | PM | |
| North Facing | 1-3 | 1-3 | 1-3 | 1-3 |
| East Facing | 4-6 | 4-6 | 4-6 | 4-6 |
| South Facing | 2-4 | 2-4 | 3-5 | 3-5 |
| Weather | Mostly sunny until 6 PM, then mostly cloudy. Scattered showers. |
|||||
|---|---|---|---|---|---|---|
| Low Temperature | In the lower 70s. | |||||
| Winds | East winds 5 to 10 mph. | |||||
|
||||||
| Weather | Mostly sunny. Isolated showers. | ||||
|---|---|---|---|---|---|
| High Temperature | In the mid 80s. | ||||
| Winds | East winds around 10 mph. | ||||
|
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| Sunrise | 6:01 AM HST. | ||||
| Sunset | 6:48 PM HST. | ||||
Forecast for Big Island Leeward
| Shores | Tonight | Saturday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| PM | AM | AM | PM | |
| West Facing | 1-3 | 1-3 | 1-3 | 1-3 |
| South Facing | 2-4 | 2-4 | 3-5 | 3-5 |
| Weather | Partly cloudy. Hazy. Isolated showers. |
|---|---|
| Low Temperature | In the lower 70s. |
| Winds | Northwest winds around 5 mph in the evening, becoming light and variable. |
Swell Summary
Surf along south facing shores saw a slight bump this morning and will likely experience another small bump Saturday through early next week as a series of small long-period southerly swells move through. A small, medium-period northeast swell will keep surf somewhat elevated along east facing shores through the weekend. As this swell declines, the short-period energy will fill in and take over 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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