Hawaii County Surf Forecast for December 17, 2025
Forecast for Big Island Windward and Southeast
| Shores | Tonight | Wednesday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| PM | AM | AM | PM | |
| North Facing | 5-7 | 5-7 | 5-7 | 5-7 |
| East Facing | 2-4 | 2-4 | 2-4 | 2-4 |
| South Facing | 2-4 | 2-4 | 2-4 | 2-4 |
| Weather | Mostly cloudy until 6 PM, then partly cloudy. Scattered showers. |
|||||
|---|---|---|---|---|---|---|
| Low Temperature | In the upper 60s. | |||||
| Winds | South winds around 10 mph. | |||||
|
||||||
| Weather | Sunny. Scattered showers. | |||||
|---|---|---|---|---|---|---|
| High Temperature | In the lower 80s. | |||||
| Winds | South winds 10 to 15 mph. | |||||
|
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| Sunrise | 6:48 AM HST. | |||||
| Sunset | 5:44 PM HST. | |||||
Forecast for Big Island Leeward
| Shores | Tonight | Wednesday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| PM | AM | AM | PM | |
| West Facing | 2-4 | 3-5 | 3-5 | 3-5 |
| South Facing | 1-3 | 2-4 | 2-4 | 2-4 |
| Weather | Partly sunny until 6 PM, then mostly clear. |
|---|---|
| Low Temperature | Around 70. |
| Winds | Northwest winds around 5 mph, becoming northeast in the evening, then becoming light and variable after midnight. |
| Weather | Sunny. |
|---|---|
| High Temperature | In the mid 80s. |
| Winds | Light and variable winds, becoming southwest around 5 mph in the afternoon. |
| Sunrise | 6:52 AM HST. |
| Sunset | 5:48 PM HST. |
Swell Summary
N swell will gradually decline through tonight before a mid period WNW swell fills in tonight through Wednesday from a low to the NW. This swell will elevate surf to just below the HSA threshold but is expected to bring seas to 10 feet around Oahu and Kauai. This means that north shores should see relatively jumbled surf on Wednesday with the short to mid period energy mixing in. And a Small Craft Advisory (SCA) has been issued for the NW waters of Kauai and Oahu. A larger NW swell will then begin filling in by Wednesday night and peak on Thursday right around advisory levels. This swell could also briefly bring SCA level seas (10 feet) to the NW waters of Kauai. This swell will gradually fade out through the remainder of the week with small to moderate N and NW swells mixed in through the weekend.
E shores remain small except where NW-N swell energy wraps through the week. By next week, NE swell could elevate E shores and trade winds increase. S shores should see short period S swell due to persistent S-SW winds through at least the first half of the week, then decrease during the second half as the S-SW winds decrease.
NORTH EAST
am 
pm
Surf: Minimal (ankle high or less) surf.
Conditions: Semi choppy with ESE winds 5-10mph in the morning increasing to 10-15mph in the afternoon.
NORTH WEST
am 
pm
Surf: Minimal (ankle high or less) surf.
Conditions: Clean in the early morning with ESE winds less than 5mph. Bumpy/semi bumpy conditions move in during the morning hours with the winds shifting W 5-10mph.
WEST
am 
pm
Surf: Minimal (ankle high or less) surf.
Conditions: Semi glassy in the morning with N winds less than 5mph. Bumpy/semi bumpy conditions for the afternoon with the winds shifting WNW 5-10mph.
SOUTH EAST
am pm
Surf: Minimal (ankle high or less) surf.
Conditions: Light sideshore texture in the morning with NE winds 10-15mph. This becomes Sideshore texture/chop for the afternoon.
Data Courtesy of NOAA.gov and SwellInfo.com
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