What's on in Hilo (Big Island), United States through the year
Hilo, United States has 5 curated events through the year — 1 festival, 1 natural spectacle, 2 seasons and 1 hazard season. The ones to plan around: Merrie Monarch Festival (March) and Mango and tropical fruit harvest (June).
Updated September 2026 · every event curated and sourced · dates for 2026 where they are announced, the usual window where they are not
Best time to visit Hilo (Big Island): weather, crowds and notes →
Hilo (Big Island) events and crowds by month
January in Hilo (Big Island)
Hilo (Big Island) weather in January →Busy — Winter / Christmas break in United States, school holidays in 2 of the markets that fill it
Nothing new starts in January.
Still on: Winter swell (15 Oct – 31 Mar), Humpback whale season (15 Nov – 15 May)
February in Hilo (Big Island)
Hilo (Big Island) weather in February →Shoulder season — an ordinary month
Nothing new starts in February.
Still on: Winter swell (15 Oct – 31 Mar), Humpback whale season (15 Nov – 15 May)
March in Hilo (Big Island)
Hilo (Big Island) weather in March →Busy — Spring break in United States
- Festival
Merrie Monarch Festival
5–11 AprMajor festivalCrowdedBook earlyThe week after Easter, the world's most serious hula competition fills Hilo along with a craft fair and a parade down Kilauea Avenue. Competition tickets go by mail lottery months ahead and every room in town is taken. Source ↗
Still on: Winter swell (15 Oct – 31 Mar), Humpback whale season (15 Nov – 15 May)
April in Hilo (Big Island)
Hilo (Big Island) weather in April →Busy — Merrie Monarch Festival
Nothing new starts in April.
Still on: Merrie Monarch Festival (5–11 Apr), Humpback whale season (15 Nov – 15 May)
May in Hilo (Big Island)
Hilo (Big Island) weather in May →Busy — one of its best months for weather
Nothing new starts in May.
Still on: Humpback whale season (15 Nov – 15 May)
June in Hilo (Big Island)
Hilo (Big Island) weather in June →Busy — Summer break in United States, school holidays in 2 of the markets that fill it
- Season
Mango and tropical fruit harvest
1 Jun – 30 Sep · usuallyMango, lychee, rambutan and mountain apple come in through the summer and the Hilo farmers market on Wednesday and Saturday is where they land. Most of it never leaves the island.
- Hazard
Central Pacific hurricane season
1 Jun – 30 NovThe season runs June to November and most systems weaken or pass south of the islands, but Hilo is the town on the windward side and takes the rain when one does track close. Direct hits are rare and consequential. Source ↗
July in Hilo (Big Island)
Hilo (Big Island) weather in July →Busy — Summer break in United States, school holidays in 2 of the markets that fill it
Nothing new starts in July.
Still on: Mango and tropical fruit harvest (1 Jun – 30 Sep (usually)), Central Pacific hurricane season (1 Jun – 30 Nov)
August in Hilo (Big Island)
Hilo (Big Island) weather in August →Busy — Summer break in United States, school holidays in 2 of the markets that fill it
Nothing new starts in August.
Still on: Mango and tropical fruit harvest (1 Jun – 30 Sep (usually)), Central Pacific hurricane season (1 Jun – 30 Nov)
September in Hilo (Big Island)
Hilo (Big Island) weather in September →Busy — Summer break in United States
Nothing new starts in September.
Still on: Mango and tropical fruit harvest (1 Jun – 30 Sep (usually)), Central Pacific hurricane season (1 Jun – 30 Nov)
October in Hilo (Big Island)
Hilo (Big Island) weather in October →Shoulder season — an ordinary month
- Season
Winter swell
15 Oct – 31 MarSurf seasonRiskNorth Pacific swells reach the windward coast through the winter and Honoli'i, just north of town, is where the island's surfers go. The same swell makes the rocky shoreline and the river mouths dangerous to swim.
Still on: Central Pacific hurricane season (1 Jun – 30 Nov)
November in Hilo (Big Island)
Hilo (Big Island) weather in November →Busy — Thanksgiving break in United States
- Nature
Humpback whale season
15 Nov – 15 MayHumpbacks come down from Alaska to breed in Hawaiian water between about November and May, peaking from January to March. Hilo Bay gets fewer than the leeward side, but they can be watched from the shore.
Still on: Central Pacific hurricane season (1 Jun – 30 Nov), Winter swell (15 Oct – 31 Mar)
December in Hilo (Big Island)
Hilo (Big Island) weather in December →Busy — Winter / Christmas break in United States, school holidays in 2 of the markets that fill it
Nothing new starts in December.
Still on: Winter swell (15 Oct – 31 Mar), Humpback whale season (15 Nov – 15 May)