Hawaii County Surf Forecast for August 09, 2025
Forecast for Big Island Windward and Southeast
HIGH SURF ADVISORY FOR SOUTH FACING SHORES
| 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 | 2-4 | 2-4 |
| South Facing | 7-10 | 8-12 | 9-12 | 9-12 |
| Weather | Partly cloudy. Scattered showers. | ||||||
|---|---|---|---|---|---|---|---|
| Low Temperature | In the lower 70s. | ||||||
| Winds | Northeast winds 5 to 10 mph. | ||||||
|
|||||||
| Weather | Mostly sunny. Scattered showers. | |||||
|---|---|---|---|---|---|---|
| High Temperature | In the mid 80s. | |||||
| Winds | Northeast winds 5 to 10 mph. | |||||
|
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| Sunrise | 5:59 AM HST. | |||||
| Sunset | 6:53 PM HST. | |||||
Forecast for Big Island Leeward
HIGH SURF ADVISORY FOR SOUTH FACING SHORES
| Shores | Tonight | Saturday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| PM | AM | AM | PM | |
| West Facing | 5-7 | 6-8 | 8-12 | 8-12 |
| South Facing | 7-10 | 8-12 | 9-12 | 9-12 |
| Weather | Mostly sunny until 6 PM, then mostly cloudy until 12 AM, then partly cloudy. Hazy. Scattered showers. |
|---|---|
| Low Temperature | In the lower 70s. |
| Winds | West winds around 5 mph, becoming south in the evening, then becoming west after midnight. |
Swell Summary
Elevated surf heights can be observed today across the south facing shores. This is from a swell that arrived earlier today and will continue supporting advisory level surf before another reinforcing pulse arrives tonight into tomorrow. Surf heights are expected to border on warning levels later tonight and hold through tomorrow. A High Surf Advisory for all south-facing shores is in effect through Sunday night and could be upgraded to a warning if the swell comes in larger. The swell will gradually fade through next week.
Surf for east facing shores should remain choppy tonight and should decrease slightly tomorrow as trade winds decrease. A medium period east swell from Tropical Storm Henriette may arrive around Sunday and briefly increase the east facing shores.
A small, medium northwest swell passing through today and tomorrow will keep north shore surf from going completely flat. Another tiny northwest swell is expected to arrive by Monday.
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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