Hawaii County Surf Forecast for September 21, 2024
Forecast for Big Island Windward and Southeast
| Shores | Tonight | Saturday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| PM | AM | AM | PM | |
| North Facing | 0-2 | 0-2 | 0-2 | 0-2 |
| East Facing | 2-4 | 2-4 | 2-4 | 2-4 |
| South Facing | 1-3 | 1-3 | 1-3 | 1-3 |
| Weather | Mostly sunny until 6 PM, then mostly cloudy. Numerous showers. |
||||||
|---|---|---|---|---|---|---|---|
| Low Temperature | Around 70. | ||||||
| Winds | Northeast winds 5 to 10 mph. | ||||||
|
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| Weather | Mostly cloudy. Scattered showers. | |||||
|---|---|---|---|---|---|---|
| High Temperature | In the lower 80s. | |||||
| Winds | Northeast winds 5 to 10 mph. | |||||
|
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| Sunrise | 6:09 AM HST. | |||||
| Sunset | 6:18 PM HST. | |||||
Forecast for Big Island Leeward
| Shores | Tonight | Saturday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| PM | AM | AM | PM | |
| West Facing | 0-2 | 0-2 | 0-2 | 0-2 |
| South Facing | 1-3 | 1-3 | 1-3 | 1-3 |
| Weather | Mostly sunny until 6 PM, then mostly cloudy until 12 AM, then partly cloudy. Scattered showers. |
|---|---|
| Low Temperature | In the lower 70s. |
| Winds | Southwest winds around 5 mph, becoming southeast. |
| Weather | Mostly sunny until 12 PM, then mostly cloudy. Scattered showers. |
|---|---|
| High Temperature | In the mid 80s. |
| Winds | South winds around 5 mph. |
| Sunrise | 6:13 AM HST. |
| Sunset | 6:22 PM HST. |
Swell Summary
Surf along north facing shores will trend up next Tuesday through midweek as a long-period northwest swell arrives. This will peak Tuesday night into Wednesday, then ease through the second half of next week. Surf along east facing shores will remain small and choppy into Saturday, then decrease Sunday into next week as the trades weaken. Surf along south facing shores will remain small through the weekend, with mainly a mix of background long-period southwest and short-period southeast swells moving through. An upward trend is possible next Tuesday through midweek due to a slightly larger southwest swell arriving.
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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