Hawaii County Surf Forecast for December 20, 2024
Forecast for Big Island Windward and Southeast
| Shores | Tonight | Friday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| PM | AM | AM | PM | |
| North Facing | 8-12 | 10-14 | 10-14 | 9-12 |
| East Facing | 2-4 | 2-4 | 2-4 | 2-4 |
| South Facing | 2-4 | 2-4 | 2-4 | 2-4 |
| Weather | Partly cloudy. Isolated showers. | |||||
|---|---|---|---|---|---|---|
| Low Temperature | In the upper 60s. | |||||
| Winds | North winds around 5 mph, becoming northwest after midnight. |
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| Weather | Mostly sunny. | |||||
|---|---|---|---|---|---|---|
| High Temperature | In the lower 80s. | |||||
| Winds | Northwest winds around 5 mph, becoming east in the afternoon. |
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| Sunrise | 6:49 AM HST. | |||||
| Sunset | 5:46 PM HST. | |||||
Forecast for Big Island Leeward
HIGH SURF ADVISORY FOR WEST FACING SHORES
| Shores | Tonight | Friday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| PM | AM | AM | PM | |
| West Facing | 6-8 | 7-10 | 7-10 | 6-8 |
| South Facing | 2-4 | 2-4 | 2-4 | 2-4 |
| Weather | Partly cloudy. Isolated showers. |
|---|---|
| Low Temperature | In the upper 60s. |
| Winds | Southwest winds around 5 mph, becoming south in the evening, then becoming light and variable after midnight. |
| Weather | Mostly sunny. |
|---|---|
| High Temperature | In the mid 80s. |
| Winds | Light and variable winds, becoming west around 10 mph in the afternoon. |
| Sunrise | 6:53 AM HST. |
| Sunset | 5:50 PM HST. |
Swell Summary
A series of large northwest to north-northwest (315-330 degrees) swells will move through Hawaiian waters into Monday. The overlapping pulses of swell will likely maintain surf near or above warning thresholds along affected shores most of the time through at least the weekend, with the largest swell expected on Sunday. Advisory level surf will be possible along west facing shores of the Big Island beginning this evening.
Aside from areas exposed to wrapping northwest swell, surf along east and south facing shores will remain small through much of the week.
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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