Hawaii County Surf Forecast for July 17, 2021
Forecast for Big Island Leeward
| Shores | Today | Sunday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| AM | PM | AM | PM | |
| West Facing | 1-3 | 2-4 | 2-4 | 2-4 |
| South Facing | 3-5 | 4-6 | 4-6 | 4-6 |
| Weather | Sunny until 12 PM, then cloudy. Scattered showers. |
|---|---|
| High Temperature | In the mid 80s. |
| Winds | Light and variable winds, becoming northwest around 5 mph in the afternoon. |
| Sunrise | 5:55 AM HST. |
| Sunset | 7:06 PM HST. |
| Weather | Mostly cloudy until 12 AM, then partly cloudy. Scattered showers. |
|---|---|
| Low Temperature | In the lower 70s. |
| Winds | Light and variable winds, becoming northwest around 5 mph after midnight. |
Swell Summary
The current south swell will continue to build this morning, and will likely cause surf heights to increase to near or just above the summertime average along south facing shores this weekend. This south swell will gradually decline early next week, so expect surf to return to background summertime heights along south facing shores by mid-week. The gusty trade winds will produce slightly elevated, rough surf along east facing shores through early next week. Besides some localized wrap of trade wind swell, surf along most north facing shores will remain nearly flat through early next week.
NORTH EAST
am 
pm 
Surf: Knee to thigh high E short period wind swell for the morning. The swell shifts more ENE and builds for the afternoon with sets up to stomach high.
Conditions: Sideshore texture/chop with SE winds 5-10mph in the morning shifting ESE 10-15mph in the afternoon.
NORTH WEST
am 
pm 
Surf: Minimal (ankle high or less) surf.
Conditions: Clean in the early morning with SSE winds less than 5mph. Semi choppy conditions move in during the morning hours with the winds shifting WSW 5-10mph.
WEST
am 
pm
Surf: Minimal (ankle high or less) surf.
Conditions: Semi glassy in the morning with SE winds less than 5mph. Semi glassy/semi bumpy conditions for the afternoon with the winds shifting SSW 5-10mph. Glassy conditions are expected for the late day with W winds less than 5mph.
SOUTH EAST
am pm
Surf: Knee high E short period wind swell in the morning builds to knee to waist high for the afternoon.
Conditions: Fairly clean in the morning with N winds 5-10mph. Sideshore texture/chop conditions for the afternoon with the winds shifting NE 10-15mph.
Data Courtesy of NOAA.gov and SwellInfo.com
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