Hawaii County Surf Forecast for October 12, 2025
Forecast for Big Island Windward and Southeast
| Shores | Tonight | Sunday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| PM | AM | AM | PM | |
| North Facing | 2-4 | 2-4 | 1-3 | 3-5 |
| East Facing | 2-4 | 3-5 | 3-5 | 3-5 |
| South Facing | 2-4 | 2-4 | 1-3 | 1-3 |
| Weather | Partly cloudy. Isolated showers. | |||||
|---|---|---|---|---|---|---|
| Low Temperature | Around 70. | |||||
| Winds | Southeast winds 5 to 10 mph. | |||||
|
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| Weather | Partly sunny. Isolated showers. | ||||
|---|---|---|---|---|---|
| High Temperature | In the mid 80s. | ||||
| Winds | East winds 5 to 10 mph. | ||||
|
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| Sunrise | 6:14 AM HST. | ||||
| Sunset | 6:00 PM HST. | ||||
Forecast for Big Island Leeward
| Shores | Tonight | Sunday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| PM | AM | AM | PM | |
| West Facing | 1-3 | 1-3 | 1-3 | 2-4 |
| South Facing | 2-4 | 2-4 | 1-3 | 1-3 |
| Weather | Mostly cloudy. Scattered showers. |
|---|---|
| Low Temperature | In the lower 70s. |
| Winds | Northwest winds around 5 mph, becoming southwest after midnight. |
Swell Summary
A small short- to medium-period north-northeast swell will fade overnight as the current small northwest swell increases slightly. Long-period forerunners of a new northwest (320 deg) swell will build on Sunday, and surf should peak Monday and Tuesday at High Surf Advisory levels for most north and west shores from Kauai to Maui. Surf will gradually decline Thursday and Friday.
Small inconsistent southwest swell will decline by Monday, with tiny background swell prevailing through the rest of the week.
Along east facing shores, the small north-northeast swell will fade overnight, but a slight increase to near seasonal normal is expected tonight into Monday as medium-period easterly swell from a distant tropical cyclone moves across the area. East shore surf will be small Tuesday, then increase and become rough during the second part of the week as trade winds build.
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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