Hawaii County Surf Forecast for August 11, 2025
Forecast for Big Island Windward and Southeast
HIGH SURF ADVISORY FOR SOUTH FACING SHORES
| Shores | Today | Monday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| AM | PM | AM | PM | |
| North Facing | 2-4 | 2-4 | 1-3 | 1-3 |
| East Facing | 5-7 | 6-8 | 5-7 | 5-7 |
| South Facing | 10-14 | 8-12 | 7-10 | 6-8 |
| Weather | Mostly sunny. Isolated showers. | |||||
|---|---|---|---|---|---|---|
| High Temperature | In the mid 80s. | |||||
| Winds | East winds 5 to 10 mph. | |||||
|
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| Sunrise | 5:59 AM HST. | |||||
| Sunset | 6:52 PM HST. | |||||
| Weather | Partly cloudy. Isolated showers. | |||||
|---|---|---|---|---|---|---|
| Low Temperature | In the lower 70s. | |||||
| Winds | Southeast winds around 5 mph. | |||||
|
||||||
| Weather | Partly sunny. Scattered showers. | |||||
|---|---|---|---|---|---|---|
| High Temperature | In the mid 80s. | |||||
| Winds | Southeast winds 5 to 10 mph. | |||||
|
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| Sunrise | 5:59 AM HST. | |||||
| Sunset | 6:52 PM HST. | |||||
Forecast for Big Island Leeward
HIGH SURF ADVISORY FOR SOUTH FACING SHORES
| Shores | Today | Monday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| AM | PM | AM | PM | |
| West Facing | 5-7 | 4-6 | 5-7 | 4-6 |
| South Facing | 10-14 | 8-12 | 7-10 | 6-8 |
| Weather | Mostly sunny. Hazy. Scattered showers. |
|---|---|
| High Temperature | In the upper 80s. |
| Winds | North winds around 5 mph, becoming west in the afternoon. |
| Sunrise | 6:03 AM HST. |
| Sunset | 6:56 PM HST. |
Swell Summary
The long period south swell will hold at high end advisory levels, just below warning thresholds this morning. Surf heights will slowly decline through tonight. However, surf heights will likely remain above advisory thresholds into Monday. Therefore the current High Surf Advisory was extended in time through Monday afternoon for the south facing shores of all islands. After this current south swell diminishes from Tuesday into Wednesday, we expect only small long and medium period background pulses along south facing shores into next weekend.
Surf along east facing shores will increase as Tropical Storm Henriette passes northeast of the state today, sending a medium period east swell into the islands. This swell will decrease rather quickly on Monday with smaller east shore surf expected from Tuesday into Wednesday. A medium period northeast swell will be possible by Thursday.
Tiny surf along north facing shores will continue with just small energy pulses keeping north shore surf above flat levels this week.
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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