Pahala, Big Island Weather
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Regional Big Island Weather Forecast Hawaii County Weather Forecast for April 05, 2025
Hilo
Tonight: Mostly cloudy with isolated showers. Lows 63 to 70 near the shore to 49 to 55 at 4000 feet. East winds up to 10 mph shifting to the northwest after midnight. Chance of rain 20 percent.
Saturday: Partly sunny in the morning then becoming mostly sunny. Isolated showers. Highs 77 to 83 near the shore to around 68 at 4000 feet. Northeast winds up to 15 mph. Chance of rain 20 percent.
Saturday Night: Mostly cloudy. Scattered showers in the evening, then numerous showers after midnight. Lows 63 to 69 near the shore to 48 to 55 at 4000 feet. North winds up to 15 mph. Chance of rain 70 percent.
Kona
Tonight: Mostly cloudy. Haze. Lows around 72 near the shore to 45 to 53 near 5000 feet. Light winds.
Saturday: Mostly sunny. Haze through the day. Isolated showers in the afternoon. Highs around 86 near the shore to around 68 near 5000 feet. Light winds. Chance of rain 20 percent.
Saturday Night: Mostly clear. Haze. Lows around 72 near the shore to 44 to 52 near 5000 feet. Light winds.
Waimea
Tonight: Mostly cloudy. Breezy and haze. Lows 62 to 70 near the shore to 52 to 60 near 3000 feet. East winds up to 20 mph.
Saturday: Mostly sunny. Breezy. Highs 75 to 81 near the shore to 70 to 78 near 3000 feet. East winds up to 25 mph increasing to 15 to 25 mph in the afternoon. Gusts up to 45 mph.
Saturday Night: Partly cloudy. Breezy. Isolated showers in the evening, then scattered showers after midnight. Lows 62 to 69 near the shore to 53 to 59 near 3000 feet. East winds up to 25 mph with gusts to 45 mph. Chance of rain 50 percent.
Kohala
Tonight: Mostly cloudy. Breezy and haze. Lows 62 to 70 near the shore to 52 to 60 near 3000 feet. East winds up to 20 mph.
Saturday: Mostly sunny. Breezy. Highs 75 to 81 near the shore to 70 to 78 near 3000 feet. East winds up to 25 mph increasing to 15 to 25 mph in the afternoon. Gusts up to 45 mph.
Saturday Night: Partly cloudy. Breezy. Isolated showers in the evening, then scattered showers after midnight. Lows 62 to 69 near the shore to 53 to 59 near 3000 feet. East winds up to 25 mph with gusts to 45 mph. Chance of rain 50 percent.
South Big Island
Tonight: Mostly cloudy. Breezy and haze. Lows around 72 near the shore to around 49 near 5000 feet. East winds up to 25 mph.
Saturday: Mostly sunny. Windy and haze. Highs around 86 near the shore to around 67 near 5000 feet. East winds up to 30 mph increasing to 10 to 30 mph in the afternoon.
Sunday: Sunny and breezy. Highs 67 to 88. East winds 10 to 20 mph.
Puna
Tonight: Mostly cloudy with isolated showers. Lows 63 to 70 near the shore to 49 to 55 at 4000 feet. East winds up to 10 mph shifting to the northwest after midnight. Chance of rain 20 percent.
Saturday: Partly sunny in the morning then becoming mostly sunny. Isolated showers. Highs 77 to 83 near the shore to around 68 at 4000 feet. Northeast winds up to 15 mph. Chance of rain 20 percent.
Saturday Night: Mostly cloudy. Scattered showers in the evening, then numerous showers after midnight. Lows 63 to 69 near the shore to 48 to 55 at 4000 feet. North winds up to 15 mph. Chance of rain 70 percent.
Waikoloa
Tonight: Mostly cloudy. Haze. Lows around 72 near the shore to 49 to 54 above 4000 feet. East winds up to 15 mph.
Saturday: Sunny and breezy. Highs 81 to 89 near the shore to 66 to 73 above 4000 feet. Northeast winds up to 25 mph with gusts to 45 mph.
Saturday Night: Mostly clear. Breezy. Lows around 71 near the shore to 48 to 54 above 4000 feet. Northeast winds up to 25 mph with gusts to 45 mph shifting to the east up to 15 mph after midnight.
Detailed Forecast
Synopsis
Breezy trades will focus showers associated with a dissipating front over Oahu and Kauai into Saturday while dry weather and light winds prevail elsewhere. Trades then return to the remainder of the area tonight and continue through next week.
Discussion
Regional observations and model analyses this afternoon reveal a dissipating cold front stalled in the Kauai Channel beneath a mostly opaque canopy of high clouds aloft. Strong southwesterlies aloft ensure high clouds will persist for the remainder of today into tonight helping to tamp down late afternoon temperatures. Radar composite shows the focus of showers associated with said front mainly over the Kauai Channel at press time with isolated activity noted over portions of Windward Oahu as breezy trades make their return to the western end of the state. This band of frontal moisture will favor enhanced showers over windward and mauka sections of Oahu and especially Kauai tonight into tomorrow until building trades usher it west of the state by late Saturday. Elsewhere, breezy trades gradually return as governing high pressure becomes established near 30N. This in turn favors a return to a typical distribution of clouds and showers over windward and mauka areas going forward. Little change then for the remainder of the forecast period as breezy trades prevail.
Aviation
A dissipating front over the western end of the state has stalled across the Kauai Channel with breezy northeasterly trade winds building in its wake. A band of enhanced clouds and showers will persist across the Kauai Channel and portions of Kauai and Oahu through this evening as moisture lingers along the dissipating frontal boundary, then lift back towards Kauai overnight into tomorrow. Periods of MVFR conditions are likely within the heavier showers, with brief periods of IFR possible. As such, AIRMET Sierra remains in effect for mountain obscuration for all of Kauai and north through east sections of Oahu through this evening.
The eastern half of the state will see moderate to locally breezy southeasterly winds through the evening before easterly trade winds return tonight. Overall, VFR conditions will prevail across this end of the state.
AIRMET Tango is in effect for tempo moderate upper level turbulence and is expected to continue through the evening.
Marine
Trade winds will build tonight and become locally strong and gusty during the weekend. A dissipating front stalled in the Kauai Channel will drift westward over Kauai late tonight and Saturday. Meanwhile, strong high pressure far northwest of the state will build and creep eastward. As a result, fresh to locally strong trade winds, which area already observed around Kauai, will develop across the typically windy waters around the Big Island and Maui County tonight and will persist through at least Sunday. A Small Craft Advisory (SCA) remains in effect around Kauai and has been expanded to waters around the Big Island and Maui County. Trades will likely ease slightly Monday and Tuesday as the surface high weakens, but trades are expected to build again by Wednesday.
A north-northwest (330-340 deg) swell will continue to build down the island chain tonight, followed by a large north (340-350 deg) swell Saturday and Sunday. Recent observations from buoy 51001 have shown the new north-northwest swell coming in above guidance, and High Surf Advisory conditions are expected across most north facing shores tonight and early Saturday. A much larger pulse of long period north swell will rapidly build Saturday afternoon and peak Saturday night and Sunday. During the peak, surf along north and exposed east facing shores of most islands will reach High Surf Warning levels, while most west facing shores experience advisory level conditions. Moderate to heavy surges in north facing harbors, mainly at Kahului and Hilo, are anticipated by Saturday and will persist through the weekend. The large swell will also produce combined seas in excess of 10 feet over most waters and will contribute to the need for a SCA. The north swell will steadily decline on Monday and will fade by the middle of next week.
Small surf will prevail along south facing shores through early Sunday. Small pulses of south swell are possible late Sunday and Monday and again midweek.
HFO Watches/Warnings/Advisories
High Surf Warning until 6 PM HST Sunday for Niihau, Oahu North Shore, Olomana, Maui Windward West, Kauai North, Kauai East, Koolau Windward, Molokai Windward, Molokai North, Maui Central Valley North, Windward Haleakala, Big Island East, Big Island North.
High Surf Advisory from 6 AM Saturday to 6 PM HST Sunday for Kauai Leeward, Waianae Coast, Maui Leeward West, Molokai West.
Small Craft Advisory until 6 PM HST Sunday for Kauai Northwest Waters, Kauai Windward Waters, Kauai Leeward Waters, Kauai Channel.
Small Craft Advisory until 6 PM HST Sunday for Oahu Windward Waters, Maalaea Bay, Pailolo Channel, Alenuihaha Channel, Big Island Leeward Waters, Big Island Southeast Waters.
Small Craft Advisory from 6 AM Saturday to 6 PM HST Sunday for Oahu Leeward Waters, Kaiwi Channel, Maui County Windward Waters, Big Island Windward Waters.
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Data Courtesy of NOAA.gov