Hawaii County Surf Forecast for April 21, 2023
Forecast for Big Island Windward and Southeast
| Shores | Today | Saturday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| AM | PM | AM | PM | |
| North Facing | 1-3 | 1-3 | 1-3 | 1-3 |
| East Facing | 0-2 | 0-2 | 0-2 | 0-2 |
| South Facing | 1-3 | 1-3 | 2-4 | 2-4 |
| Weather | Partly sunny. Scattered showers. | |||||
|---|---|---|---|---|---|---|
| High Temperature | In the mid 80s. | |||||
| Winds | Southeast winds around 10 mph. | |||||
|
||||||
| Sunrise | 5:58 AM HST. | |||||
| Sunset | 6:40 PM HST. | |||||
| Weather | Mostly cloudy. Scattered showers. | |||||
|---|---|---|---|---|---|---|
| Low Temperature | In the upper 60s. | |||||
| Winds | Southeast winds 5 to 10 mph. | |||||
|
||||||
| Weather | Mostly sunny. Scattered showers. | |||||
|---|---|---|---|---|---|---|
| High Temperature | In the mid 80s. | |||||
| Winds | Southeast winds 5 to 10 mph. | |||||
|
||||||
| Sunrise | 5:57 AM HST. | |||||
| Sunset | 6:40 PM HST. | |||||
Forecast for Big Island Leeward
| Shores | Today | Saturday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| AM | PM | AM | PM | |
| West Facing | 1-3 | 1-3 | 1-3 | 1-3 |
| South Facing | 1-3 | 1-3 | 2-4 | 2-4 |
| Weather | Partly sunny. Scattered showers. |
|---|---|
| High Temperature | In the mid 80s. |
| Winds | North winds around 5 mph, increasing to northwest around 15 mph in the afternoon. |
| Sunrise | 6:02 AM HST. |
| Sunset | 6:44 PM HST. |
| Weather | Sunny until 12 PM, then partly sunny. Scattered showers. |
|---|---|
| High Temperature | In the mid 80s. |
| Winds | Northwest winds around 5 mph, becoming west in the afternoon. |
| Sunrise | 6:01 AM HST. |
| Sunset | 6:44 PM HST. |
Swell Summary
The current short period west-northwest swell will gradually decline through Saturday. A new overlapping long period northwest swell is forecast to arrive by Saturday morning and another reinforcing medium period northwest swell will move in Sunday night. Surf heights along north and west facing shores will show decreasing trends today and then increase into the weekend.
Surf along south facing shores will remain tiny today. A new long period south swell will arrive tonight, peak over the weekend near the summertime average, and then slowly decline through the middle of next week. Surf along east facing shores will remain small through the middle of next week.
NORTH EAST
am 
pm
Surf: Waist to chest high ESE short period wind swell.
Conditions: Sideshore texture/chop with SSE winds 15-20mph in the morning shifting SE 20-25mph in the afternoon.
NORTH WEST
am 
pm 
Surf: Minimal (ankle high or less) surf.
Conditions: Light sideshore texture in the morning with NE winds 5-10mph. Bumpy/choppy conditions for the afternoon with the winds shifting N 15-20mph.
WEST
am pm
Surf: Minimal (ankle high or less) surf.
Conditions: Sideshore texture/chop with NNW winds 5-10mph in the morning shifting NW 15-20mph in the afternoon.
SOUTH EAST
am pm
Surf: Small scale (ankle to knee high) surf.
Conditions: Bumpy/semi bumpy in the morning with SE winds 5-10mph. This becomes Semi glassy/semi bumpy for the afternoon.
Data Courtesy of NOAA.gov and SwellInfo.com
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