Hawaii County Surf Forecast for October 13, 2025
Forecast for Big Island Windward and Southeast
| Shores | Tonight | Monday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| PM | AM | AM | PM | |
| North Facing | 3-5 | 4-6 | 5-7 | 5-7 |
| East Facing | 3-5 | 3-5 | 3-5 | 3-5 |
| South Facing | 2-4 | 2-4 | 2-4 | 2-4 |
| Weather | Mostly sunny until 6 PM, then mostly cloudy. Scattered showers. |
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|---|---|---|---|---|---|
| Low Temperature | In the lower 70s. | ||||
| Winds | East winds 5 to 10 mph in the evening, becoming light and variable. |
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Forecast for Big Island Leeward
| Shores | Tonight | Monday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| PM | AM | AM | PM | |
| West Facing | 0-2 | 1-3 | 2-4 | 2-4 |
| South Facing | 2-4 | 2-4 | 2-4 | 2-4 |
| Weather | Mostly sunny until 6 PM, then mostly cloudy until 12 AM, then partly cloudy. Isolated showers. |
|---|---|
| Low Temperature | In the lower 70s. |
| Winds | North winds 5 to 10 mph in the evening, becoming light and variable. |
Swell Summary
Long period forerunners from an approaching northwest swell reached the offshore 51001 and 51101 buoys late this morning. This has a moderate size, long period swell reaching Kauai and Oahu this evening, Maui around Midnight Monday. Swell will fill in around all islands during the overnight hours and produce advisory level surf along many north and west-facing shores of the smaller islands by late Monday morning. A High Surf Advisory will be in effect from Monday morning through Tuesday afternoon to account for over double head high surf that should peak along many north and west-facing shores early Tuesday. Surf will begin to gradually fall from Tuesday night through Thursday.
A series of very small, medium period southern swell impulses coming from a couple of fast-moving southern gales passing south of New Zealand will pass through this week.
East-facing shore wind wave chop will be small the next couple of days. More rough surf will occur later this week as trades build over and upwind of the islands .
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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