Hawaii County Surf Forecast for September 09, 2025
Forecast for Big Island Windward and Southeast
HIGH SURF WARNING FOR EAST FACING SHORES
| Shores | Tonight | Tuesday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| PM | AM | AM | PM | |
| North Facing | 2-4 | 2-4 | 4-6 | 2-4 |
| East Facing | 7-10 | 10-15 | 10-14 | 6-8 |
| South Facing | 6-8 | 6-8 | 6-8 | 6-8 |
| Weather | Mostly cloudy. Scattered showers. | ||||||
|---|---|---|---|---|---|---|---|
| Low Temperature | In the lower 70s. | ||||||
| Winds | North winds 5 to 10 mph. | ||||||
|
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| Weather | Mostly sunny. Scattered showers. | |||||
|---|---|---|---|---|---|---|
| High Temperature | In the upper 80s. | |||||
| Winds | Northeast winds around 5 mph, becoming east in the afternoon. |
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| Sunrise | 6:06 AM HST. | |||||
| Sunset | 6:29 PM HST. | |||||
Forecast for Big Island Leeward
| Shores | Tonight | Tuesday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| PM | AM | AM | PM | |
| West Facing | 2-4 | 2-4 | 2-4 | 2-4 |
| South Facing | 4-6 | 4-6 | 3-5 | 4-6 |
| Weather | Partly cloudy. Isolated showers. |
|---|---|
| Low Temperature | In the lower 70s. |
| Winds | West winds around 5 mph, becoming south after midnight. |
Swell Summary
Latest buoy observations from Hilo showed a rise in energy across the 12-14 second spectral bands this morning, but since then the energy has been steady this afternoon. With Kiko expected to make its closes approach to the Hawaiian Islands during the next 24-36 hours, we should see a quick rise in wave heights starting with the eastern half of the state tonight and the western half of the state on Tuesday. Although peak surf heights are expected to be short-lived, a rapid rise of east swell should produce dangerous conditions along east facing shores. A High Surf Warning has been issued for the Big Island, Maui, and Molokai starting tonight and for Oahu and Kauai starting Tuesday. Surf heights are expected to peak at low end warning thresholds tonight for the Big Island, late tonight into Tuesday morning for Maui County and Tuesday mid day into the afternoon for Oahu and Kauai.
The current medium period south-southwest swell will slowly decline this afternoon before another reinforcing swell out of the south- southwest is expected on Tuesday. This should help maintain surf near or slightly above the summer average throughout the first half of the week. Additionally, multiple small pules of northwest swell energy will generate small surf along north facing beaches throughout the week. A short-lived northeast swell is possible for select exposures as Kiko passes to our north.
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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