Hawaii County Surf Forecast for December 18, 2024
Forecast for Big Island Windward and Southeast
| Shores | Tonight | Wednesday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| PM | AM | AM | PM | |
| North Facing | 2-4 | 2-4 | 5-7 | 7-10 |
| East Facing | 2-4 | 2-4 | 1-3 | 1-3 |
| South Facing | 0-2 | 0-2 | 0-2 | 0-2 |
| Weather | Partly cloudy. Isolated showers. | ||||||
|---|---|---|---|---|---|---|---|
| Low Temperature | In the upper 60s. | ||||||
| Winds | Southeast winds 5 to 10 mph, becoming south after midnight. |
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| Weather | Mostly sunny. Scattered showers. | |||||
|---|---|---|---|---|---|---|
| High Temperature | In the lower 80s. | |||||
| Winds | Southeast winds 5 to 10 mph. | |||||
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| Sunrise | 6:48 AM HST. | |||||
| Sunset | 5:45 PM HST. | |||||
Forecast for Big Island Leeward
| Shores | Tonight | Wednesday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| PM | AM | AM | PM | |
| West Facing | 1-3 | 1-3 | 3-5 | 4-6 |
| South Facing | 0-2 | 0-2 | 0-2 | 0-2 |
| Weather | Sunny. |
|---|---|
| High Temperature | In the mid 80s. |
| Winds | Light and variable winds, becoming west around 5 mph in the afternoon. |
| Sunrise | 6:52 AM HST. |
| Sunset | 5:49 PM HST. |
Swell Summary
A series of large to extra large northwest to north-northwest swells is due this week. The first northwest (315 degrees) swell will slowly build through Wednesday, with surf on most north and west facing shores from Kauai to Maui exceeding the High Surf Advisory level overnight and reaching High Surf Warning levels by Wednesday afternoon or evening. Elevated surf will be possible across leeward Big Island late Wednesday. A series of storm lows passing northwest of Hawaii will produce several larger pulses of north-northwest swell that will should keep surf at or above warning levels most of the time from Thursday through the weekend.
Aside from areas exposed to wrapping northwest swell, surf along east and south facing shores will remain small through much of the week. The best chance for a small rise in southwest swell will be on Thursday and Friday.
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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