Hawaii County Surf Forecast for September 13, 2025
Forecast for Big Island Windward and Southeast
| Shores | Tonight | Saturday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| PM | AM | AM | PM | |
| North Facing | 3-5 | 3-5 | 3-5 | 3-5 |
| East Facing | 3-5 | 3-5 | 3-5 | 3-5 |
| South Facing | 3-5 | 3-5 | 3-5 | 2-4 |
| Weather | Mostly cloudy. Scattered showers. | |||||
|---|---|---|---|---|---|---|
| Low Temperature | In the lower 70s. | |||||
| Winds | East winds 5 to 10 mph, becoming west after midnight. |
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| Weather | Partly sunny. Scattered showers. | ||||
|---|---|---|---|---|---|
| High Temperature | In the mid 80s. | ||||
| Winds | Northeast winds 5 to 10 mph. | ||||
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| Sunrise | 6:07 AM HST. | ||||
| Sunset | 6:26 PM HST. | ||||
Forecast for Big Island Leeward
| Shores | Tonight | Saturday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| PM | AM | AM | PM | |
| West Facing | 3-5 | 3-5 | 3-5 | 3-5 |
| South Facing | 3-5 | 3-5 | 3-5 | 2-4 |
| Weather | Partly cloudy. Hazy. Isolated showers. |
|---|---|
| Low Temperature | In the lower 70s. |
| Winds | West winds around 5 mph, becoming south in the evening, then becoming northwest after midnight. |
Swell Summary
Surf along south facing shores will remain near or slightly above the September average for the next couple of days. The current small, medium-period south swell will gradually decline through Saturday, but a smaller long-period reinforcement on Sunday will maintain small south shore surf into next week.
A small north northwest swell is currently moving through the region and producing elevated surf along north facing shores, but expect it to gradually decline through late Saturday. Another short- to medium- period north northwest reinforcement could cause a slight bump in surf along north facing shores on Sunday, then decline through midweek.
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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