Hawaii County Surf Forecast for September 25, 2025
Forecast for Big Island Windward and Southeast
| Shores | Today | Friday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| AM | PM | AM | PM | |
| North Facing | 3-5 | 4-6 | 4-6 | 4-6 |
| East Facing | 1-3 | 2-4 | 2-4 | 2-4 |
| South Facing | 2-4 | 2-4 | 2-4 | 2-4 |
| Weather | Partly sunny. | |||||
|---|---|---|---|---|---|---|
| High Temperature | In the mid 80s. | |||||
| Winds | South winds around 5 mph, increasing to southeast around 15 mph in the afternoon. |
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| Sunrise | 6:09 AM HST. | |||||
| Sunset | 6:15 PM HST. | |||||
| Weather | Mostly cloudy. Isolated showers. | |||||
|---|---|---|---|---|---|---|
| Low Temperature | In the lower 70s. | |||||
| Winds | South winds 5 to 10 mph. | |||||
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| Weather | Mostly cloudy. Scattered showers and a slight chance of thunderstorms. |
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|---|---|---|---|---|---|---|
| High Temperature | In the mid 80s. | |||||
| Winds | Southeast winds around 10 mph. | |||||
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| Sunrise | 6:10 AM HST. | |||||
| Sunset | 6:14 PM HST. | |||||
Forecast for Big Island Leeward
| Shores | Today | Friday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| AM | PM | AM | PM | |
| West Facing | 1-3 | 1-3 | 1-3 | 1-3 |
| South Facing | 2-4 | 2-4 | 2-4 | 2-4 |
| Weather | Mostly sunny until 12 PM, then mostly cloudy. Isolated showers. |
|---|---|
| High Temperature | In the mid 80s. |
| Winds | Northwest winds 5 to 10 mph. |
| Sunrise | 6:13 AM HST. |
| Sunset | 6:19 PM HST. |
| Weather | Partly sunny. Scattered showers and a slight chance of thunderstorms. |
|---|---|
| High Temperature | In the mid 80s. |
| Winds | Light and variable winds, becoming west around 5 mph in the afternoon. |
| Sunrise | 6:14 AM HST. |
| Sunset | 6:18 PM HST. |
Swell Summary
Surf for south facing shores will remain small today, before a small long period south swell arrives on Friday and peaks over the weekend at, or slightly above, the September average (5 ft).
Surf for east facing shores will likely see an increase from the N-NNE swell today and Friday. The islands to see the greatest increase would be Kauai and Oahu, as these islands are most directly within the fetch area of the low to the north. This swell will fade out by the weekend. Trade wind chop could increase by Sunday as trade winds return.
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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