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Photo Credit: Tyler Rooke

Kahului, Maui Weather

Today

83° F
Mostly Sunny
Wind 15 to 21 mph NE

Tonight

68° F
Partly Cloudy
Wind 8 to 15 mph NE

Saturday

83° F
Mostly Sunny
Wind 8 to 22 mph NE

Saturday Night

67° F
Partly Cloudy
Wind 13 mph NE

Sunday

84° F
Mostly Sunny
Wind 12 mph ENE

Sunday Night

67° F
Partly Cloudy
Wind 5 to 10 mph ENE

Monday

84° F
Mostly Cloudy then Scattered Rain Showers
Wind 1 to 5 mph NNW

Monday Night

66° F
Isolated Rain Showers then Partly Cloudy
Wind 1 mph NNW

Tuesday

84° F
Partly Sunny then Scattered Rain Showers
Wind 2 mph NNW

Tuesday Night

67° F
Isolated Rain Showers then Partly Cloudy
Wind 2 to 6 mph NNW

Wednesday

85° F
Partly Sunny then Scattered Rain Showers
Wind 2 to 7 mph NNW

Wednesday Night

68° F
Partly Cloudy
Wind 1 to 9 mph NNW

Thursday

83° F
Mostly Sunny
Wind 12 mph NW

Thursday Night

66° F
Scattered Rain Showers
Wind 8 to 12 mph NE
Cloud Weather Radar

Regional Maui Weather Forecast December 13, 2024

West Side

Today: Breezy. Partly sunny with isolated showers in the morning, then mostly sunny in the afternoon. Highs 72 to 85. Northeast winds 15 to 25 mph. Chance of rain 20 percent.

Tonight: Breezy. Partly cloudy in the evening, then mostly cloudy with isolated showers after midnight. Lows 64 to 73. East winds 10 to 25 mph. Chance of rain 20 percent.

Saturday: Breezy. Partly sunny with isolated showers in the morning, then mostly sunny in the afternoon. Highs 72 to 85. Northeast winds 10 to 25 mph. Chance of rain 20 percent.

South Side

Today: Mostly sunny. Breezy. Highs 74 to 87. Northeast winds 10 to 20 mph.

Tonight: Mostly clear. Lows 64 to 70. North winds up to 15 mph.

Saturday: Mostly sunny. Breezy. Highs 74 to 85. Northeast winds up to 20 mph increasing to 10 to 25 mph in the afternoon.

North Shore

Today: Mostly cloudy. Breezy. Scattered showers in the morning, then isolated showers in the afternoon. Highs 77 to 82 near the shore to around 66 near 5000 feet. East winds 10 to 20 mph. Chance of rain 50 percent.

Tonight: Breezy. Mostly cloudy with scattered showers. Lows around 69 near the shore to around 53 near 5000 feet. Southeast winds up to 20 mph. Chance of rain 50 percent.

Saturday: Mostly cloudy. Breezy. Scattered showers in the morning, then isolated showers in the afternoon. Highs 77 to 82 near the shore to around 66 near 5000 feet. Southeast winds up to 20 mph shifting to the east in the afternoon. Chance of rain 50 percent.

Central Maui

Today: Partly sunny in the morning then becoming mostly sunny. Breezy. Highs 80 to 85. Northeast winds 10 to 25 mph.

Tonight: Partly cloudy in the evening then becoming mostly cloudy. Breezy. Lows 64 to 69. East winds 10 to 20 mph.

Saturday: Partly sunny in the morning then becoming mostly sunny. Breezy. Highs 79 to 85. Northeast winds 10 to 25 mph.

Upcountry

Today: Mostly sunny in the morning then becoming partly sunny. Breezy. Highs 54 to 71. East winds up to 20 mph.

Tonight: Partly cloudy. Breezy. Lows around 46 at the visitor center to around 44 at the summit. East winds up to 20 mph.

Saturday: Mostly sunny in the morning then becoming partly sunny. Breezy. Highs 53 to 71. East winds up to 20 mph increasing to 10 to 20 mph in the afternoon.

East Maui

Today: Mostly cloudy. Breezy. Scattered showers in the morning, then isolated showers in the afternoon. Highs 77 to 82 near the shore to around 66 near 5000 feet. East winds 10 to 20 mph. Chance of rain 50 percent.

Tonight: Breezy. Mostly cloudy with scattered showers. Lows around 69 near the shore to around 53 near 5000 feet. Southeast winds up to 20 mph. Chance of rain 50 percent.

Saturday: Mostly cloudy. Breezy. Scattered showers in the morning, then isolated showers in the afternoon. Highs 77 to 82 near the shore to around 66 near 5000 feet. Southeast winds up to 20 mph shifting to the east in the afternoon. Chance of rain 50 percent.

Lanai City

Today: Sunny in the morning then becoming mostly cloudy. Breezy. Highs 69 to 79. Northeast winds 10 to 25 mph.

Tonight: Breezy. Mostly cloudy with isolated showers in the evening, then mostly clear after midnight. Lows 58 to 65. Northeast winds 10 to 20 mph. Chance of rain 20 percent.

Saturday: Sunny in the morning then becoming mostly cloudy. Breezy. Highs 68 to 78. Northeast winds 10 to 25 mph.

Kaunakakai

Today: Partly sunny. Breezy. Highs 66 to 85. Northeast winds 15 to 20 mph.

Tonight: Partly cloudy in the evening then becoming mostly cloudy. Breezy. Lows 55 to 73. Northeast winds 10 to 20 mph.

Saturday: Partly sunny. Breezy. Highs 66 to 85. Northeast winds 10 to 20 mph.

Synopsis

Moderate to breezy trade winds will continue into the weekend as the high pressure ridge lingers north of the Hawaiian Islands. Drier trade wind weather remains in the forecast through Friday night. Increasing shower trends return from Saturday afternoon through Sunday as a weak disturbance aloft passes through the region. A cold front approaching from the northwest on Monday will break down down the ridge north of the state weakening trades from Monday through Wednesday. A weak cold front may drift into the islands by the end of next week potentially increasing shower trends.

Discussion

This morning's soundings from Hilo and Lihue indicated inversions at approximately 8000 feet and 5000 feet, respectively, at 2 AM HST (12Z). Latest satellite imagery showcases an extensive band of fairly stable clouds along the eastern slopes of the islands from the Big Island northwest to Oahu as of 3 AM HST. These cloud tops within the aforementioned band are capable of producing periods of scattered showers along these windward slopes through the morning hours.
High pressure ridging remains dominant north of the islands with an upper-level low south of the islands slowly moving westward, maintaining moderate to breezy trade winds through the next couple days, and then weakening through early next week. A slight boost in trade wind showers remains in the forecast from Saturday through Sunday mainly over the windward and mountain areas of all islands due to a passing short wave trough. Brief passing showers will remain in the forecast through Sunday mainly over the windward and mountain areas, favoring the overnight to early morning hours.
Large scale winds will transition to a more light and variable pattern from Monday through Wednesday. These lighter large scale winds will allow local scale land and sea breezes to expand in coverage over all islands in a fairly stable weather pattern with limited shower activity.
There are some early signs of a weakening cold front drifting into the Hawaii region by the end of next week, possibly bringing our next best chance for widespread rainfall coverage. The forecast rainfall impacts and the track of the frontal cloud band this far out remains challenging, and at this point we can say the western islands have higher chances to pick up enhanced showers. Stay tuned.

Aviation

Breezy trade winds will continue during the next 24 hours, with light showers bringing some MVFR cigs/vsbys to windward areas, particularly at night and during the early morning hours. VFR conditions will prevail in leeward areas.
AIRMET Sierra remains in effect for mountain obscuration across windward sections of Kauai, Oahu, Molokai, Maui, and the Big Island. Conditions should improve around mid morning.
AIRMET Tango remains in effect for moderate low-level turbulence over and downwind of the terrain of all islands. This AIRMET will likely continue through the day.

Marine

Fresh to strong easterly trade winds will prevail through Sunday, easing Sunday night into early next week as the ridge weakens and shifts south due to a series of cold fronts passing to the north. Seas are currently at or near Small Craft Advisory levels for most windward waters, which will persist through Saturday before subsiding Sunday. Starting Sunday night, light and variable winds will develop near the coasts, accompanied by overnight and early morning land breezes and daytime sea breezes. This pattern will persist through the first half of next week as the background flow shifts southeast Sunday night, then south to southwest Tuesday through midweek.
Surf along exposed north and west-facing shores will remain steady today as a fresh northwest swell fills in, with heights staying well below advisory levels. A decrease in surf is expected from Saturday through Monday as the swell eases. By Tuesday, surf will begin to rise again, with a significant upward trend anticipated through the second half of next week. This increase will be driven by a decent-sized fetch developing over the far northwest Pacific, near the Aleutians from the Date Line to the Kuril Islands. Heights could exceed warning-levels (XL: 25-39 ft faces) late next week if conditions evolve as projected.
Surf along east-facing shores will remain rough through the weekend but will gradually decrease late Sunday and into much of next week as the trade winds diminish.
Surf along south-facing shores will remain near seasonal averages, influenced by a mix of short-period southeast swells and occasional longer-period background south-southwest swells.

Fire weather

While rather dry weather is expected through much of the forecast period, wind speeds and relative humidity levels will remain below critical fire weather thresholds through the seven day forecast period.

HFO Watches/Warnings/Advisories

Small Craft Advisory until 6 PM HST Saturday for Oahu Windward Waters, Oahu Leeward Waters, Kaiwi Channel, Maui County Windward Waters, Maalaea Bay, Pailolo Channel, Alenuihaha Channel, Big Island Windward Waters, Big Island Leeward Waters, Big Island Southeast Waters.

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Data Courtesy of NOAA.gov