Hawaii County Surf Forecast for May 12, 2023
Photo Credit: James Grenz
Forecast for Big Island Windward and Southeast
| Shores | Today | Saturday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| AM | PM | AM | PM | |
| North Facing | 2-4 | 3-5 | 4-6 | 6-8 |
| East Facing | 5-7 | 5-7 | 5-7 | 5-7 |
| South Facing | 3-5 | 3-5 | 3-5 | 3-5 |
| Weather | Mostly sunny. Isolated showers. | |||||
|---|---|---|---|---|---|---|
| High Temperature | In the lower 80s. | |||||
| Winds | East winds 5 to 10 mph. | |||||
|
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| Sunrise | 5:45 AM HST. | |||||
| Sunset | 6:48 PM HST. | |||||
| Weather | Partly cloudy. Isolated showers. | |||||
|---|---|---|---|---|---|---|
| Low Temperature | Around 70. | |||||
| Winds | North winds around 5 mph, becoming west after midnight. |
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|
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| Weather | Mostly sunny. Isolated showers. | |||||
|---|---|---|---|---|---|---|
| High Temperature | In the lower 80s. | |||||
| Winds | North winds 5 to 10 mph. | |||||
|
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| Sunrise | 5:45 AM HST. | |||||
| Sunset | 6:48 PM HST. | |||||
Forecast for Big Island Leeward
| Shores | Today | Saturday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| AM | PM | AM | PM | |
| West Facing | 1-3 | 1-3 | 2-4 | 2-4 |
| South Facing | 1-3 | 1-3 | 1-3 | 1-3 |
| Weather | Sunny until 12 PM, then partly sunny. Scattered showers. |
|---|---|
| High Temperature | In the lower 80s. |
| Winds | Southwest winds around 5 mph. |
| Sunrise | 5:49 AM HST. |
| Sunset | 6:52 PM HST. |
Swell Summary
Several pulses of medium-period north-northwest swell are expected to arrive through the weekend, with the swell gradually shifting to the north-northeast early next week. The strongest of the pulses, with potentially up to 10 feet of swell, will lead to High Surf along most north facing shores this weekend. The first pulse will support elevated surf today, with surf remaining well below High Surf Advisory heights. The next pulse will be unseasonably large, building tonight and Saturday, likely peaking Saturday night and Sunday. The low responsible for this swell will persist far northeast of the islands, supporting elevated medium-period north-northeast swell into the middle of next week.
Relatively small but persistent medium to long-period south and south-southeast swells will continue for at least the next couple of days, with some long-period energy from the southwest also possible next week. This will keep surf near seasonal averages along all south facing shores for the foreseeable future. Surf along east facing shores will remain small as upstream trade wind flow remains interrupted, but there will likely be some wrap from the north- northeast next week to bring a modest increase in surf heights.
NORTH EAST
am 
pm 
Surf: Small scale (ankle to knee high) surf.
Conditions: Light sideshore texture in the morning with SSE winds 10-15mph. Semi choppy conditions for the afternoon with the winds shifting ESE 5-10mph.
NORTH WEST
am pm
Surf: Minimal (ankle high or less) surf.
Conditions: Light sideshore texture in the morning with ENE winds 5-10mph. Bumpy/semi bumpy conditions for the afternoon with the winds shifting to the N.
WEST
am 
pm
Surf: Minimal (ankle high or less) surf.
Conditions: 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: Semi glassy/semi bumpy with E winds less than 5mph in the morning shifting S 5-10mph in the afternoon.
Data Courtesy of NOAA.gov and SwellInfo.com
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