Hawaii County Surf Forecast for August 31, 2025
Forecast for Big Island Windward and Southeast
| Shores | Tonight | Sunday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| PM | AM | AM | PM | |
| North Facing | 0-2 | 0-2 | 1-3 | 1-3 |
| East Facing | 2-4 | 2-4 | 2-4 | 2-4 |
| South Facing | 3-5 | 3-5 | 2-4 | 2-4 |
| Weather | Mostly cloudy until 6 PM, then partly cloudy. Scattered showers. |
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|---|---|---|---|---|---|
| Low Temperature | In the lower 70s. | ||||
| Winds | Southeast winds 5 to 10 mph. | ||||
|
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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 | 6:05 AM HST. | ||||
| Sunset | 6:37 PM HST. | ||||
Forecast for Big Island Leeward
| Shores | Tonight | Sunday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| PM | AM | AM | PM | |
| West Facing | 1-3 | 1-3 | 0-2 | 0-2 |
| South Facing | 3-5 | 3-5 | 2-4 | 2-4 |
Swell Summary
Surf along south facing shores is expected to steadily decline Sunday into Monday as the south swell fades, returning to background levels by early next week along south facing shores. Surf along north facing shores will see a small, short-period swell expected to arrive late this weekend. This swell will be overshadowed by longer period energy out of the northwest starting Monday night. This swell should peak on Tuesday and could produce surf heights near the September average of 4 to 6 feet. A reinforcing pulse out of the north is possible around the same time the northwest swell arrives. A mix of north and northwest swells are expected next Tuesday through Thursday. Below average surf is expected to continue along east facing shores due to gentle to moderate trade winds persisting through early next week.
NORTH EAST
am
pm
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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
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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
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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
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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




