Hawaii County Surf Forecast for August 20, 2024
Forecast for Big Island Windward and Southeast
| Shores | Tonight | Tuesday | ||
|---|---|---|---|---|
| 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 | 6-8 | 6-8 | 6-8 | 6-8 |
| Weather | Mostly sunny until 6 PM, then mostly cloudy. Numerous showers. |
||||||
|---|---|---|---|---|---|---|---|
| Low Temperature | In the lower 70s. | ||||||
| Winds | Northeast winds 5 to 10 mph. | ||||||
|
|||||||
| Weather | Partly sunny. Scattered showers. | |||||
|---|---|---|---|---|---|---|
| High Temperature | In the mid 80s. | |||||
| Winds | East winds 5 to 10 mph. | |||||
|
||||||
| Sunrise | 6:02 AM HST. | |||||
| Sunset | 6:45 PM HST. | |||||
Forecast for Big Island Leeward
| Shores | Tonight | Tuesday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| PM | AM | AM | PM | |
| West Facing | 3-5 | 3-5 | 3-5 | 3-5 |
| South Facing | 6-8 | 6-8 | 6-8 | 6-8 |
| Weather | Mostly cloudy until 12 AM, then partly cloudy. Scattered showers. |
|---|---|
| Low Temperature | In the lower 70s. |
| Winds | West winds around 5 mph, becoming northwest after midnight. |
| Weather | Mostly sunny until 12 PM, then mostly cloudy. Scattered showers. |
|---|---|
| High Temperature | In the mid 80s. |
| Winds | South winds around 5 mph, becoming west in the afternoon. |
| Sunrise | 6:06 AM HST. |
| Sunset | 6:49 PM HST. |
Swell Summary
Surf along south facing shores will continue to climb tonight as a long-period south-southwest swell steadily builds. The nearshore buoys at Lanai and Barbers Point, Oahu reflect this with 3 to 4 ft swell heights in the 15 to 19 second bands this afternoon. Expect a local peak tonight and Tuesday, likely coming in just below the advisory level. A downward trend will follow through the second half of the week. Surf along north and west facing shores will trend up Wednesday as a long-period west-northwest swell arrives from former Typhoon Ampil. This should peak Wednesday through Thursday, then ease by next weekend. Surf along east facing shores will remain small through Tuesday, then trend up Wednesday through the rest of the week as the trades increase locally and far east of the islands.
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
Sponsored Content
