Hawaii County Surf Forecast for June 18, 2025
Forecast for Big Island Windward and Southeast
| Shores | Tonight | Wednesday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| PM | AM | AM | PM | |
| North Facing | 0-2 | 0-2 | 0-2 | 0-2 |
| East Facing | 3-5 | 3-5 | 2-4 | 2-4 |
| South Facing | 2-4 | 2-4 | 3-5 | 3-5 |
| Weather | Mostly sunny until 6 PM, then mostly cloudy. Numerous showers. |
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|---|---|---|---|---|---|---|
| Low Temperature | In the upper 60s. | |||||
| Winds | North winds 5 to 10 mph. | |||||
|
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| Weather | Mostly cloudy until 12 PM, then mostly sunny. Scattered showers. |
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|---|---|---|---|---|---|---|
| High Temperature | In the lower 80s. | |||||
| Winds | Northeast winds around 10 mph. | |||||
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| Sunrise | 5:42 AM HST. | |||||
| Sunset | 7:01 PM HST. | |||||
Forecast for Big Island Leeward
| Shores | Tonight | Wednesday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| PM | AM | AM | PM | |
| West Facing | 1-3 | 1-3 | 1-3 | 1-3 |
| South Facing | 2-4 | 2-4 | 3-5 | 3-5 |
| Weather | Mostly cloudy. Scattered showers. |
|---|---|
| Low Temperature | Around 70. |
| Winds | West winds around 5 mph, becoming north in the evening, then becoming southeast after midnight. |
| Weather | Mostly sunny until 12 PM, then mostly cloudy. Scattered showers. |
|---|---|
| High Temperature | In the mid 80s. |
| Winds | Northwest winds around 5 mph, becoming south in the afternoon. |
| Sunrise | 5:46 AM HST. |
| Sunset | 7:05 PM HST. |
Swell Summary
High pressure north Hawaii will slowly move eastward and drive fresh to strong trades across the local waters. A Small Craft Advisory (SCA) is in effect for windier waters and channels near Maui and the Big Island due to strong winds. Trade winds are forecast to strengthen this weekend.
A small, long period, south swell will arrive on Wednesday and bring a slight bump up in surf through the weeks end. Rough and choppy conditions along east facing shores will through the next week. Surf will remain nearly flat along north facing shores.
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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