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Hawaii Weather Forecast

Live conditions, 7-day forecast, and microclimate data for all four major islands.

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Kauaʻi Recovery

Kauaʻi recovery: check your stay, water, and route

HTA visitor recovery guidance updated September 15, asks upcoming Kauaʻi travelers to confirm accommodation conditions, amenities, and planned activities directly with providers. Adjust plans when appropriate, and avoid restricted or heavily affected areas. Recovery remains uneven; confirm essential services and your arrival route before leaving. Kauaʻi County’s recovery update September 18 at 4 PM HST reports power restored to 95% of the island, with approximately 1,800 customers still awaiting restoration. Many County parks reopened September 16, but Hāʻena, Blackpot, Poʻipū, and Salt Pond beach parks remain closed. Water conservation remains in ʻAnini, Hāʻena–Wainiha, and Kīlauea. Use water only for essential needs in those systems. Confirm your accommodation's services and arrival route, and respect closed areas while recovery work continues.

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Today’s Weather Brief · Audio · ~45s

Updated 2026-09-21T22:03:23.084Z

0:00 0:54

Read the transcript

Trades are breezy right now with scattered showers on the windward side and mountains; the leeward coast stays mostly dry. Tomorrow stays breezy with the same pattern.

A tropical disturbance southeast of the islands is likely to become a tropical storm by mid-week and approach the state Thursday through Saturday. The exact track is still uncertain. If it comes closer, expect heavier rain over a longer stretch; if it stays farther out, impacts will be shorter and lighter. Winds will increase late this week, with potential gusts over 70 miles per hour on the highest summits.

Plan your leeward beach time and snorkeling for today through Tuesday. Save summit drives and offshore water sports for after Saturday, and check updates daily as this develops.

0:00 0:53

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Trade winds are pushing across Maui right now and staying breezy through tomorrow. Windward slopes and peaks will see scattered showers; the leeward side stays mostly dry. Rough seas mean a Small Craft Advisory is in effect through Tuesday evening.

A tropical disturbance southeast of the islands is likely to become a tropical storm by mid-week and approach the state Thursday through Saturday. The track remains uncertain. Late this week, winds will increase across Maui, with summit gusts potentially exceeding 70 mph on Haleakala. The Big Island—especially Hilo and Puna—faces the highest risk of heavy rain and flooding if the storm tracks close.

Leeward beaches and snorkeling work best today through Tuesday. Avoid summit hikes and offshore water sports Thursday through Saturday.

0:00 0:55

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Trades are kicking today with moderate wind and rough seas. Windward slopes will see scattered showers; the leeward side stays mostly dry. A Small Craft Advisory is in effect through Tuesday evening.

A tropical disturbance southeast of the islands is likely to become a tropical storm by mid-week and approach the state Thursday through Saturday. The track remains uncertain, but the Big Island faces the highest risk of heavy rain and flooding, especially in the Hilo and Puna areas. Summit winds could exceed 70 mph late in the week. Check forecasts daily as the situation develops.

Leeward snorkeling and beach time work well through Tuesday. Save summit drives and windward hikes for today or tomorrow, and avoid offshore water sports and high elevations Thursday through Saturday.

0:00 0:58

Read the transcript

Trades are steady now with scattered showers on the windward side and ridges; the leeward coast stays mostly dry. Through Tuesday it stays breezy with rough seas around Maui and the Big Island, where a Small Craft Advisory is in effect through Tuesday evening.

A tropical disturbance southeast of the islands is likely to become a tropical storm by mid-week and approach the state Thursday through Saturday. The exact track is uncertain. Winds will increase across the eastern islands late this week, with potential for summit gusts over 70 mph on Maui and the Big Island if the storm intensifies.

Get your beach and snorkel time in today and tomorrow on the leeward coast. Avoid summit hikes and offshore water sports Thursday through Saturday as conditions deteriorate. The track could shift significantly—check updates daily.

Created with AI from the official NWS forecast discussion · verify with NWS before heading out

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Local sustained wind

Humidity

Today's Peak UV

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Daylight

Temperature

Microclimate Conditions

Hawaii's mountains create dramatically different weather over short distances. Compare two representative visitor areas on the selected island; each card is a specific local point, not an islandwide reading.

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Source: Open-Meteo model point estimates. Sustained wind and gusts are local, not islandwide observations; official watches and warnings take priority.

Live Weather Radar

Live precipitation radar from the National Weather Service. Start with the all-islands view, then zoom into a single island to see where rain is moving.

Hawaii weather radar loop from the National Weather Service

Showing: Hawaii regional composite (all islands)

Source: NOAA / National Weather Service. For zooming and panning, open the interactive NWS radar viewer.

7-Day Forecast

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Source: Open-Meteo model forecast for the selected airport area. Each condition is the day's most severe modeled signal, which may be brief; it is not a whole-island forecast. Check NWS Honolulu for official watches and warnings.

What NWS Forecasters Are Watching

Plain-English summary. Created with AI from the official NWS Honolulu forecast discussion. AI can make mistakes — always double-check the official forecast before heading out.

Source: NWS Honolulu Area Forecast Discussion — rewritten in plain English with AI assistance.

What to Expect

Temperature

Average daytime temperatures at sea level are about 78°F in winter and 85°F in summer. Higher elevations (Haleakala, Mauna Kea) average about a 3.5°F drop per 1,000 feet. Summit temps can hit freezing in winter.

Rain Patterns

Rain is hyperlocal. It can pour in one valley while the beach a mile away stays dry. Windward slopes are generally much wetter than leeward coasts, but the difference varies sharply by island and elevation. Most showers are brief.

Trade Winds

Hawaii's prevailing northeast trade winds help keep the air comfortable. When trades die ("Kona weather"), humidity rises and skies can get hazy. Trades are generally strongest in summer.

Wet vs. Dry Season

November through April is generally wetter (with bigger surf on north shores), while May through October is generally drier. Both seasons are warm enough for the beach. With a strengthening El Niño in place for winter 2026–27, expect a drier-than-usual wet season — see our El Niño winter guide.

Island Weather Guides

Each island has its own microclimate personality. These guides cover precipitation maps, monthly climate data, and region-by-region breakdowns to help you pick the right area to stay.

Oahu Weather Honolulu climate data, precipitation map, windward vs. leeward patterns Maui Weather Kahului averages, driest to wettest regions, Hana Highway rain tips Big Island Weather Kona vs. Hilo climates, diverse climate zones, vog conditions Kauai Weather Lihue averages, north vs. south shore rainfall, wettest spot on earth

Hawaii Weather Overview » — Climate patterns, hurricane season, and general travel guidance

Ocean Report — Surf forecast, tides & water temps Sunrise & Sunset — Today's times & golden hour Trail & Road Status — Closures & conditions Live Webcams — Beach, surf & volcano cams

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