Surf Report

Hawaii County Surf Forecast for May 18, 2021

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Forecast for Big Island Leeward


Shores Today Wednesday
Surf Surf
AM PM AM PM
West Facing 1-3 1-3 1-3 1-3
South Facing 2-4 2-4 2-4 2-4
TODAY

Weather Mostly sunny. Scattered showers.
High Temperature In the lower 80s.
Winds South winds around 5 mph, becoming
southwest in the afternoon.
Tides
Kona High 0.6 feet 07:37 AM HST.
Low 0.2 feet 01:19 PM HST.
Kawaihae High 0.5 feet 09:44 AM HST.
Low 0.4 feet 01:34 PM HST.
Sunrise 5:47 AM HST.
Sunset 6:54 PM HST.
TONIGHT

Weather Mostly cloudy until 12 AM, then partly
cloudy. Scattered showers.
Low Temperature In the upper 60s.
Winds South winds around 5 mph, becoming
north after midnight.
Tides
Kona High 1.7 feet 09:38 PM HST.
Low 0.3 feet 05:25 AM HST.
Kawaihae High 1.9 feet 09:26 PM HST.
Low 0.1 feet 05:17 AM HST.
WEDNESDAY

Weather Mostly sunny until 12 PM, then mostly
cloudy. Scattered showers.
High Temperature In the lower 80s.
Winds Southwest winds around 5 mph, becoming
northwest in the afternoon.
Tides
Kona High 0.7 feet 10:22 AM HST.
Low 0.3 feet 03:03 PM HST.
Kawaihae High 0.8 feet 11:14 AM HST.
Low 0.5 feet 03:14 PM HST.
Sunrise 5:47 AM HST.
Sunset 6:55 PM HST.

Swell Summary

Slightly higher surf is expected along northern and western coasts through Wednesday as a couple of late season small north to west swells pass around the islands. Today's swell is more northwest at 330 degrees and will peak surf at below normal heights. A secondary more west northwest small swell arrives tonight into Wednesday. This swell will hold north facing surf up but may also be just enough north at near 300 degrees to avoid upstream island shadowing and provide a small bump to west facing Kauai and Oahu shore surf Wednesday.

Several days of enhanced trades has created fully developed seas. Thus, choppy conditions along east facing shores will occur throughout the week.

South facing shore surf will stay small, or slightly below season norms, the next several days. In the long range, a slightly larger, long period pulse from the southern hemisphere may arrive early next week. This swell may boost late May southern coast surf to near typical summertime heights.

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NORTH EAST

am        pm  

Surf: Knee high ENE short period wind swell in the morning builds to knee to waist high for the afternoon.

Conditions: Semi clean/textured in the morning with S winds 10-15mph. Choppy/sideshore current conditions for the afternoon with the winds shifting SE 15-20mph.

NORTH WEST

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am        pm  

Surf: Minimal (ankle high or less) surf.

Conditions: Clean in the early morning with SE winds less than 5mph. Semi choppy conditions move in during the morning hours with the winds shifting WSW 5-10mph.

WEST

am        pm  

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Surf: Minimal (ankle high or less) surf.

Conditions: Glassy in the morning with SE winds less than 5mph. Semi glassy/semi bumpy conditions for the afternoon with the winds shifting SW 5-10mph.

SOUTH EAST

am        pm  

Surf: Knee high E short period wind swell in the morning builds in the afternoon with occasional sets up to waist high.

Conditions: Clean in the morning with NNW winds 5-10mph. Semi choppy conditions for the afternoon with the winds shifting to the ENE.

Data Courtesy of NOAA.gov and SwellInfo.com

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