Hawaii County Surf Forecast for May 20, 2025
Forecast for Big Island Windward and Southeast
| Shores | Tonight | Tuesday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| PM | AM | AM | PM | |
| North Facing | 1-3 | 0-2 | 0-2 | 1-3 |
| East Facing | 3-5 | 2-4 | 2-4 | 2-4 |
| South Facing | 2-4 | 2-4 | 2-4 | 2-4 |
| Weather | Partly sunny until 12 AM, then partly cloudy. Occasional showers. |
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|---|---|---|---|---|---|---|---|
| Low Temperature | In the upper 60s. | ||||||
| Winds | East winds 5 to 10 mph. | ||||||
|
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| Weather | Mostly sunny. Scattered showers. | |||||
|---|---|---|---|---|---|---|
| High Temperature | In the lower 80s. | |||||
| Winds | Northeast winds 5 to 10 mph. | |||||
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| Sunrise | 5:43 AM HST. | |||||
| Sunset | 6:51 PM HST. | |||||
Forecast for Big Island Leeward
| Shores | Tonight | Tuesday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| PM | AM | AM | PM | |
| West Facing | 1-3 | 1-3 | 1-3 | 1-3 |
| South Facing | 2-4 | 2-4 | 2-4 | 2-4 |
| Weather | Mostly sunny until 12 PM, then mostly cloudy until 12 AM, then partly cloudy. Hazy. Isolated showers. |
|---|---|
| Low Temperature | Around 70. |
| Winds | West winds around 5 mph, becoming north. |
| Weather | Mostly sunny until 12 PM, then mostly cloudy. Hazy. Scattered showers. |
|---|---|
| High Temperature | In the mid 80s. |
| Winds | Southeast winds around 5 mph, becoming west in the afternoon. |
| Sunrise | 5:47 AM HST. |
| Sunset | 6:55 PM HST. |
Swell Summary
Surf along south facing shores will remain just below seasonal average into Saturday as pulses of south-southwest and southwest swell move through. Surf will decline Sunday and remain small into early next week.
Rough east shore surf will remain near or just below seasonal average during the next couple of days, followed by a slight increase Thursday and Friday as trade winds build east of the islands. A gradual decline in east shore surf is expected during the weekend and early next week. Tiny surf will prevail along north facing shores this week.
NORTH EAST
am
pm
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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
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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
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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
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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




