Hawaii County Surf Forecast for June 18, 2026
Forecast for Big Island Windward and Southeast
| Shores | Tonight | Thursday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| PM | AM | AM | PM | |
| North Facing | 1-3 | 1-3 | 1-3 | 1-3 |
| East Facing | 1-3 | 1-3 | 1-3 | 1-3 |
| South Facing | 5-7 | 6-8 | 6-8 | 7-10 |
| Weather | Partly sunny until 6 PM, then partly cloudy. Scattered showers. |
||||||
|---|---|---|---|---|---|---|---|
| Low Temperature | In the lower 70s. | ||||||
| Winds | Southeast winds 5 to 10 mph. | ||||||
|
|||||||
| Weather | Sunny. Isolated showers. | ||||
|---|---|---|---|---|---|
| High Temperature | In the mid 80s. | ||||
| Winds | Southeast winds 5 to 10 mph. | ||||
|
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| Sunrise | 5:42 AM HST. | ||||
| Sunset | 7:01 PM HST. | ||||
Forecast for Big Island Leeward
| Shores | Tonight | Thursday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| PM | AM | AM | PM | |
| West Facing | 3-5 | 4-6 | 4-6 | 5-7 |
| South Facing | 5-7 | 6-8 | 6-8 | 7-10 |
| Weather | Mostly sunny until 6 PM, then mostly clear. Isolated showers. |
|---|---|
| Low Temperature | In the lower 70s. |
| Winds | Southwest winds around 5 mph, becoming north after midnight. |
Swell Summary
A series of southern hemisphere swells will continue to move through the area during the next week, though much smaller than the recent large event. The current south swell will remain on a very slow decline into tonight. A new overlapping south-southwest swell will arrive overnight and will produce surf near the High Surf Advisory threshold of 10 feet on Thursday. This swell will decline Friday, and a series of smaller south-southwest swells will maintain surf near seasonal average this weekend into early next week. Small surf will prevail on north and east shores through most of the coming week. A slight increase in east shore surf is expected around next Tuesday or Wednesday as trade winds build across the region.
NORTH EAST
am 
pm
Surf: Minimal (ankle high or less) surf.
Conditions: Semi choppy with ESE winds 5-10mph in the morning increasing to 10-15mph in the afternoon.
NORTH WEST
am 
pm
Surf: Minimal (ankle high or less) surf.
Conditions: Clean in the morning with ESE winds less than 5mph. Bumpy/semi bumpy conditions for the afternoon with the winds shifting W 5-10mph.
WEST
am 
pm
Surf: Minimal (ankle high or less) surf.
Conditions: Light sideshore texture in the morning with NNW winds 5-10mph. Bumpy/semi bumpy conditions for the afternoon with the winds shifting to the WNW.
SOUTH EAST
am pm
Surf: Minimal (ankle high or less) surf.
Conditions: Sideshore texture/chop with NE winds 10-15mph.
Data Courtesy of NOAA.gov and SwellInfo.com
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