Hawaii County Surf Forecast for September 13, 2026

Published September 12, 2026 • 8:00 PM HST

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Forecast for Big Island Windward and Southeast

Shores	Tonight		Sunday
	Surf		Surf
	PM	AM	AM	PM
North Facing	1-3	1-3	1-3	1-3
East Facing	3-5	3-5	2-4	2-4
South Facing	2-4	2-4	2-4	2-4

TONIGHT

Weather

Mostly sunny until 6 PM, then mostly
cloudy. Scattered showers.

Low Temperature

In the lower 70s.

Winds

Northeast winds around 5 mph, becoming
northwest after midnight.

Tides
Hilo Bay	High 2.4 feet 03:45 PM HST.
	Low 0.1 feet 10:02 PM HST.
	High 2.4 feet 04:28 AM HST.

SUNDAY

Weather

Mostly sunny. Isolated showers.

High Temperature

In the lower 80s.

Winds

North winds 5 to 10 mph.

Tides
Hilo Bay	Low 0.6 feet 10:29 AM HST.
Hilo Bay	High 2.1 feet 04:09 PM HST.

Sunrise

6:07 AM HST.

Sunset

6:26 PM HST.

Forecast for Big Island Leeward

Shores	Tonight		Sunday
	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

TONIGHT

Weather

Sunny until 6 PM, then mostly clear.

Low Temperature

In the lower 70s.

Winds

West winds around 5 mph early in the
afternoon, becoming light and variable.

Tides
Kona	High 1.9 feet 04:23 PM HST.
	Low 0.1 feet 10:39 PM HST.
	High 2.0 feet 05:06 AM HST.
Kawaihae	High 1.9 feet 04:46 PM HST.
	Low 0.1 feet 10:59 PM HST.
	High 2.1 feet 05:31 AM HST.

SUNDAY

Weather

Sunny until 12 PM, then partly sunny.
Scattered showers.

High Temperature

In the upper 80s.

Winds

West winds around 5 mph.

Tides
Kona	Low 0.4 feet 11:06 AM HST.
Kona	High 1.7 feet 04:47 PM HST.
Kawaihae	Low 0.5 feet 11:40 AM HST.
Kawaihae	High 1.7 feet 05:15 PM HST.

Sunrise

6:11 AM HST.

Sunset

6:30 PM HST.

Swell Summary

Surf along south-facing shores will gradually decline through the weekend as the small, medium- to long-period energy slowly fades. A moderate, long-period swell generated by a low that passed near Australia and New Zealand is forecast to arrive mid to late week next week and bring a bump to south shore surf.

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Surf along east-facing shores will remain small to moderate through early next week, then build slightly over the latter half of the week as the trade winds strengthen and some easterly swell from Norbert potentially moves in. Flat to tiny surf along north facing shores is expected through the forecast period.

NORTH EAST

NORTH WEST

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WEST

SOUTH EAST

Data Courtesy of NOAA.gov and SwellInfo.com

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