Hawaii County Surf Forecast for May 18, 2025
Forecast for Big Island Windward and Southeast
| Shores | Tonight | Sunday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| PM | AM | AM | PM | |
| North Facing | 2-4 | 2-4 | 2-4 | 2-4 |
| East Facing | 3-5 | 3-5 | 3-5 | 3-5 |
| South Facing | 2-4 | 2-4 | 2-4 | 2-4 |
| Weather | Mostly cloudy. Numerous showers. | ||||||
|---|---|---|---|---|---|---|---|
| Low Temperature | In the upper 60s. | ||||||
| Winds | Southeast winds 5 to 10 mph. | ||||||
|
|||||||
| Weather | Partly sunny. Scattered showers. | ||||
|---|---|---|---|---|---|
| High Temperature | Around 80. | ||||
| Winds | East winds 5 to 10 mph. | ||||
|
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| Sunrise | 5:43 AM HST. | ||||
| Sunset | 6:50 PM HST. | ||||
Forecast for Big Island Leeward
| Shores | Tonight | Sunday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| PM | AM | AM | PM | |
| West Facing | 0-2 | 0-2 | 0-2 | 0-2 |
| South Facing | 1-3 | 1-3 | 1-3 | 1-3 |
| Weather | Partly sunny until 6 PM, then partly cloudy. Hazy. Scattered showers and a slight chance of thunderstorms. |
|---|---|
| Low Temperature | In the lower 70s. |
| Winds | West winds around 5 mph, becoming southeast in the evening, then becoming north after midnight. |
Swell Summary
Surf along north and west-facing shores will remain very small during the next 7 days as small northwest swell fades. Surf along south facing shores will hold at background levels today before a series of small south and south-southwest swells modestly boost south shore surf on Sunday. A further boost up to seasonal averages are possible during the middle to latter part of next week.
Surf along east-facing shores will remain rough and choppy during the next 7 days.
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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