Big Island Conditions: Volcano, Vog, Roads, Waterfalls & Whales

Current Kīlauea Volcano Activity

As of July 28, 2026, Kīlauea's activity is monitored daily by the USGS Hawaiian Volcano Observatory (HVO). The live USGS alert level for Kīlauea is displayed on this page below and is the authoritative source for eruption status.

Recent eruptive activity at Kīlauea has been confined to the summit region within Hawaiʻi Volcanoes National Park. Summit eruptions inside Halemaʻumaʻu crater are viewable from marked overlooks inside the park when active; no lava has threatened communities or roads used by our tours.

Mauna Loa, the island's other active volcano, last erupted in November–December 2022 and is currently not erupting.

Vog (Volcanic Smog)

Vog is haze produced when volcanic sulfur dioxide reacts with sunlight and moisture. Vog levels on the Big Island depend directly on whether Kīlauea is actively erupting and on trade wind strength.

Under normal trade winds, vog is carried south and west, so the Kona side can be hazier while Hilo and the windward side stay clear. When trade winds weaken, vog can spread more widely.

As of July 28, 2026, vog conditions are typical for periods between summit eruptive episodes: generally light, with occasional afternoon haze in Kona. Current air quality readings are published by the Hawaiʻi Department of Health at air.doh.hawaii.gov.

Road & National Park Status

As of July 28, 2026, all major highways used to circle the island — Highway 11 (Māmalahoa/Hawaiʻi Belt Road), Highway 19 along the Hāmākua Coast, and the Daniel K. Inouye Highway (Saddle Road) — are open and in normal condition.

Hawaiʻi Volcanoes National Park is open daily, 24 hours. Crater Rim Drive is open to its usual public extent; Chain of Craters Road is open to the coast. Some overlooks close temporarily during active summit eruptions for safety — closures are posted at nps.gov/havo.

Our Full-Day Circle Island Tour operates on its normal route. If the park or a highway status changes, we adjust the itinerary the same day and tell guests during the night-before confirmation call.

Waterfall Flow (Akaka Falls & Rainbow Falls)

Waterfall flow on the Hilo and Hāmākua side tracks recent windward rainfall. July sits in the Big Island's drier summer season, so flows in late July 2026 are moderate — Akaka Falls (442 feet) runs year-round and remains impressive even in the driest months.

Rainbow Falls in Hilo is best in the morning after overnight rain, when mist can produce its namesake rainbows. Flow as of July 28, 2026 is typical for mid-summer: steady but below winter volume.

Whale Season (December–April)

Humpback whales visit Hawaiian waters from December through April, with peak sightings January through March. As of July 28, 2026, it is off-season: humpbacks are in Alaskan feeding waters and are not expected off the Big Island until December 2026.

During whale season, humpbacks are regularly visible from the island's western shoreline — including from coastal stretches of our tour route — no boat required.

Sunrise & Sunset Times

For the week of July 28, 2026 in Kailua-Kona: sunrise is at approximately 5:56 am and sunset at approximately 7:04 pm (Hawaiʻi–Aleutian Standard Time; Hawaii does not observe daylight saving time).

Daylight in late July runs about 13 hours, which is why our Full-Day Circle Island Tour (about 10 hours door to door) completes the entire loop in daylight.

Frequently Asked Questions

Is the volcano erupting on the Big Island right now?

Kīlauea's eruption status changes on short notice; the authoritative source is the USGS Hawaiian Volcano Observatory alert level, which is displayed live on this page. Recent activity has been confined to the summit inside Hawaiʻi Volcanoes National Park, with no threat to communities or tour routes.

Is it safe to visit Hawaiʻi Volcanoes National Park right now?

Yes. As of July 28, 2026 the park is open daily and our tours operate their normal route. During active summit eruptions the park manages viewing at marked overlooks and may close specific viewpoints temporarily.

Will vog affect my visit to Kona?

Usually only as light haze. Vog is heaviest on the Kona side during active eruptions with weak trade winds. As of July 28, 2026, vog levels are typical and light. Travelers with respiratory sensitivity can check current readings at the Hawaiʻi Department of Health air quality site.

When can I see whales on the Big Island?

Humpback whale season runs December through April, peaking January–March. Outside those months (including now, July 2026), humpbacks are not present in Hawaiian waters.

Are the waterfalls worth visiting in summer?

Yes. Akaka Falls (442 feet) flows year-round; summer flow is moderate rather than at winter peak. Rainbow Falls in Hilo is best in the morning after overnight rain.