Hawaii County Surf Forecast for September 21, 2026
Forecast for Big Island Windward and Southeast
| Shores | Tonight | Monday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| PM | AM | AM | PM | |
| North Facing | 0-2 | 0-2 | 0-2 | 0-2 |
| East Facing | 4-6 | 4-6 | 4-6 | 4-6 |
| South Facing | 6-8 | 5-7 | 4-6 | 4-6 |
| Weather | Mostly sunny until 6 PM, then mostly cloudy. Scattered showers. |
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|---|---|---|---|---|---|---|---|
| Low Temperature | In the mid 70s. | ||||||
| Winds | North winds 10 to 15 mph. | ||||||
|
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| Weather | Mostly cloudy. Scattered showers. | ||||
|---|---|---|---|---|---|
| High Temperature | In the mid 80s. | ||||
| Winds | North winds 10 to 15 mph. | ||||
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| Sunrise | 6:09 AM HST. | ||||
| Sunset | 6:18 PM HST. | ||||
Forecast for Big Island Leeward
| Shores | Tonight | Monday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| PM | AM | AM | PM | |
| West Facing | 4-6 | 3-5 | 2-4 | 2-4 |
| South Facing | 6-8 | 5-7 | 4-6 | 4-6 |
| Weather | Mostly sunny until 6 PM, then mostly cloudy until 12 AM, then partly cloudy. Isolated showers. |
|---|---|
| Low Temperature | In the lower 70s. |
| Winds | Southwest winds around 5 mph, becoming east after midnight. |
Swell Summary
Surf along south-facing shores will remain above average over the next couple of days as a long period south-southwest swell holds relatively steady. This swell will then fade during the middle of the week, but will be followed by another small southerly swell shortly thereafter. West-facing shores will experience a bit of the southerly wrap.
Breezy trade winds will maintain moderate surf along east-facing shores for the next several days. Surf along north-facing shores will remain flat to tiny through Monday, but will see a slight bump Tuesday into Wednesday. Then a small, long-period west-northwest swell will build Friday into next weekend, increasing surf along north- and west-facing shores.
NORTH EAST
NORTH WEST
WEST
SOUTH EAST
Data Courtesy of NOAA.gov and SwellInfo.com
