Hawaii County Surf Forecast for September 10, 2025
Forecast for Big Island Windward and Southeast
| Shores | Tonight | Wednesday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| PM | AM | AM | PM | |
| North Facing | 2-4 | 2-4 | 2-4 | 1-3 |
| East Facing | 6-8 | 6-8 | 4-6 | 3-5 |
| South Facing | 4-6 | 4-6 | 3-5 | 3-5 |
| Weather | Mostly cloudy. Occasional showers. | ||||||
|---|---|---|---|---|---|---|---|
| Low Temperature | In the lower 70s. | ||||||
| Winds | Southeast winds 5 to 10 mph. | ||||||
|
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| Weather | Cloudy until 12 PM, then mostly sunny. Occasional showers. |
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|---|---|---|---|---|---|---|
| High Temperature | In the mid 80s. | |||||
| Winds | East winds around 10 mph. | |||||
|
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| Sunrise | 6:06 AM HST. | |||||
| Sunset | 6:28 PM HST. | |||||
Forecast for Big Island Leeward
| Shores | Tonight | Wednesday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| PM | AM | AM | PM | |
| West Facing | 2-4 | 2-4 | 1-3 | 1-3 |
| South Facing | 4-6 | 4-6 | 3-5 | 3-5 |
| Weather | Partly sunny until 6 PM, then mostly clear. Scattered showers. |
|---|---|
| Low Temperature | In the lower 70s. |
| Winds | West winds around 5 mph in the evening, becoming light and variable. |
| Weather | Sunny until 12 PM, then partly sunny. Scattered showers. |
|---|---|
| High Temperature | In the mid 80s. |
| Winds | South winds around 5 mph, becoming northwest in the afternoon. |
| Sunrise | 6:10 AM HST. |
| Sunset | 6:32 PM HST. |
Swell Summary
The latest buoy observations from Mokapu show the main swell energy focused across the 10-14 second spectral bands this afternoon. This swell will likely peak late this afternoon into the evening across Oahu and peak across Kauai later tonight. Surf heights should drop below warning thresholds by Wednesday morning, but advisory level surf could linger around Kauai through parts of the Wednesday.
A reinforcing swell out of the south-southwest arrived today and will be on a slow decline Wednesday into Thursday. Surf heights should hold near the summer average through Wednesday then drop below average by Thursday. Another small bump from the south is possible on Friday. Additionally, multiple small pules of northwest to north-northwest swell energy will generate small surf along north facing beaches throughout the week and into the weekend. A short-lived northeast swell is possible for select exposures as Kiko passes to our north.
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




