Hawaii County Surf Forecast for July 18, 2023
Forecast for Big Island Windward and Southeast
HIGH SURF WARNING FOR EAST FACING SHORES
| Shores | Today | Wednesday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| AM | PM | AM | PM | |
| North Facing | 0-2 | 1-3 | 4-6 | 3-5 |
| East Facing | 5-7 | 6-8 | 10-15 | 8-12 |
| South Facing | 2-4 | 2-4 | 5-7 | 3-5 |
| Weather | Mostly sunny. Scattered showers. | |||||
|---|---|---|---|---|---|---|
| High Temperature | In the mid 80s. | |||||
| Winds | North winds around 15 mph. | |||||
|
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| Sunrise | 5:51 AM HST. | |||||
| Sunset | 7:02 PM HST. | |||||
| Weather | Cloudy. Showers with isolated thunderstorms. |
|||||
|---|---|---|---|---|---|---|
| Low Temperature | In the lower 70s. | |||||
| Winds | Breezy. Northeast winds 20 to 25 mph. | |||||
|
||||||
| Weather | Cloudy. Showers with isolated thunderstorms. |
|||||
|---|---|---|---|---|---|---|
| High Temperature | In the mid 80s. | |||||
| Winds | Southeast winds 15 to 20 mph. | |||||
|
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| Sunrise | 5:52 AM HST. | |||||
| Sunset | 7:02 PM HST. | |||||
Forecast for Big Island Leeward
| Shores | Today | Wednesday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| AM | PM | AM | PM | |
| West Facing | 0-2 | 0-2 | 0-2 | 0-2 |
| South Facing | 1-3 | 1-3 | 1-3 | 1-3 |
| Weather | Cloudy. Showers with isolated thunderstorms. |
|---|---|
| High Temperature | In the upper 80s. |
| Winds | South winds around 10 mph, becoming north in the afternoon. |
| Sunrise | 5:56 AM HST. |
| Sunset | 7:06 PM HST. |
Swell Summary
Surf along east facing shores will quickly rise this evening, peak late tonight into Wednesday as Tropical Storm Calvin approaches and moves over or near the Big Island. Surf heights are expected to briefly reach warning level heights for east facing shores of the Big Island and Maui County tonight through Wednesday morning. A downward trend is anticipated through the second half of the week as Calvin continues to move far west and dissipates. For Oahu and Kauai, east shore surf heights will likely reach advisory levels Wednesday. Otherwise, no significant swells are expected through the weekend.
NORTH EAST
am 
pm 
Surf: Knee to waist high ENE short period wind swell in the morning builds to waist to chest high for the afternoon.
Conditions: Semi glassy/semi bumpy in the morning with ENE winds less than 5mph. Clean conditions for the afternoon with the winds shifting to the SW.
NORTH WEST
am 
pm 
Surf: Minimal (ankle high or less) surf.
Conditions: Clean in the morning with SSE winds less than 5mph. Sideshore texture/chop conditions for the afternoon with the winds shifting SW 10-15mph.
WEST
am pm 
Surf: Minimal (ankle high or less) surf.
Conditions: Glassy in the morning with ESE winds less than 5mph. Semi glassy/semi bumpy conditions for the afternoon with the winds shifting to the S.
SOUTH EAST
am 
pm 
Surf: Knee to waist high ENE short period wind swell in the morning builds to waist to chest high for the afternoon.
Conditions: Sideshore/choppy with NNE winds 15-20mph in the morning shifting N for the afternoon.
Data Courtesy of NOAA.gov and SwellInfo.com
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