Hawaii County Surf Forecast for April 18, 2023
Forecast for Big Island Windward and Southeast
| Shores | Today | Wednesday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| AM | PM | AM | PM | |
| North Facing | 0-2 | 0-2 | 2-4 | 2-4 |
| East Facing | 1-3 | 1-3 | 2-4 | 2-4 |
| South Facing | 1-3 | 1-3 | 4-6 | 4-6 |
| Weather | Partly sunny. Scattered showers. | |||||
|---|---|---|---|---|---|---|
| High Temperature | In the mid 80s. | |||||
| Winds | South winds around 10 mph, increasing to southeast around 20 mph in the afternoon. |
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| Sunrise | 6:00 AM HST. | |||||
| Sunset | 6:39 PM HST. | |||||
| Weather | Mostly cloudy. Scattered showers. | |||||
|---|---|---|---|---|---|---|
| Low Temperature | In the upper 60s. | |||||
| Winds | South winds around 15 mph. | |||||
|
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| Weather | Mostly cloudy. Scattered showers. | |||||
|---|---|---|---|---|---|---|
| High Temperature | In the lower 80s. | |||||
| Winds | South winds around 15 mph. | |||||
|
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| Sunrise | 5:59 AM HST. | |||||
| Sunset | 6:39 PM HST. | |||||
Forecast for Big Island Leeward
| Shores | Today | Wednesday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| AM | PM | AM | PM | |
| West Facing | 0-2 | 0-2 | 2-4 | 2-4 |
| South Facing | 1-3 | 1-3 | 4-6 | 4-6 |
| Weather | Partly sunny. Isolated showers. |
|---|---|
| High Temperature | In the lower 80s. |
| Winds | Southwest winds around 5 mph, becoming west in the afternoon. |
| Sunrise | 6:04 AM HST. |
| Sunset | 6:43 PM HST. |
Swell Summary
Surf along south facing shores will become rough and choppy later today through Wednesday due to strong south winds, then quickly lower Thursday as the winds diminish. Surf along north and west facing shores will rise as a medium period west-northwest swell arrives Wednesday. As a this source moves out, a long-period northwest swell forecast to arrive Friday night into Saturday will peak over the weekend. A long-period south swell expected will lead to rising surf over the weekend.
NORTH EAST
am 
pm 
Surf: Knee high E short period wind swell in the morning builds to waist to chest high for the afternoon.
Conditions: Sideshore texture/chop with SSE winds 15-20mph in the morning shifting SE 20-25mph in the afternoon.
NORTH WEST
am 
pm
Surf: Minimal (ankle high or less) surf.
Conditions: Clean in the morning with SE winds less than 5mph. Semi choppy conditions for the afternoon with the winds shifting WSW 5-10mph.
WEST
am 
pm
Surf: Minimal (ankle high or less) surf.
Conditions: Semi glassy in the morning with SSE winds less than 5mph. Semi glassy/semi bumpy conditions for the afternoon with the winds shifting SW 5-10mph.
SOUTH EAST
am pm 
Surf: Minimal surf (ankle or less) for the morning with a knee to thigh high E short period wind swell filling in during the afternoon with occasional waist sets.
Conditions: Bumpy/semi bumpy with SE winds 10-15mph in the morning shifting SSE 15-20mph in the afternoon.
Data Courtesy of NOAA.gov and SwellInfo.com
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