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Best time to visit Big Island (Hawaii)

Month-by-month weather, crowds, prices, and festival calendar — so you know exactly when to book.

Best time to visit Big Island (Hawaii), United States

Month-by-month breakdown of weather, crowds, prices, and seasonal highlights.

MonthScoreWeatherCrowdsPricesHighlights
January
20-27°C, pleasant with occasional rain, especially on windward side.highhigh
  • Whale watching season begins
  • Clear skies for stargazing at Mauna Kea
Post-holiday crowds can linger.
February
20-27°C, generally dry and sunny, occasional trade wind showers.highhigh
  • Peak humpback whale season
  • Excellent conditions for hiking and beach activities
Still within the peak tourist season.
March
20-28°C, transitioning to drier weather, sunny with brief showers.highhigh
  • Continued whale watching
  • Good visibility for snorkeling and diving
Spring break crowds can increase later in the month.
April
21-28°C, largely dry and sunny, gentle trade winds.moderatemoderate
  • Shoulder season - fewer crowds
  • Ideal weather for exploring volcanoes and beaches
  • Late whale sightings possible
A sweet spot before summer vacationers arrive.
May
22-29°C, warm and sunny, minimal rainfall.moderatemoderate
  • Excellent beach weather
  • Lush landscapes after winter rains
  • Kona Coffee Festival (typically late May/early June)
Good balance of weather and fewer crowds.
June
23-30°C, hot and sunny, very little rain, especially on Kona side.highhigh
  • Summer solstice celebrations
  • Warmest ocean temperatures for swimming
  • Long daylight hours
Start of summer vacation, crowds and prices increase.
July
23-30°C, hot and humid, generally dry but brief showers possible.peakpeak
  • Peak summer vacation
  • Ideal for water sports
  • Volcanoes National Park is a major draw
Highest crowds and prices of the year.
August
23-30°C, hot and humid, chance of brief afternoon showers.highhigh
  • End of summer vacation
  • Warmest sea temperatures
  • Good for exploring lava tubes
Still very hot and crowded.
September
22-29°C, warm and pleasant, drier conditions, less humidity.moderatemoderate
  • Shoulder season returns
  • Excellent weather for hiking and exploring
  • Pau Hana (end-of-work week) celebrations
A great time to visit before the fall rush.
October
22-29°C, pleasant temperatures, drier than winter, sunny.moderatemoderate
  • Fall foliage in higher elevations (limited)
  • Good weather for all outdoor activities
  • End of hurricane season with lower risk
Still a prime time before the winter holiday surge.
November
21-28°C, mild with increasing chance of rain, especially on windward sides.moderatemoderate
  • Beginning of whale watching season
  • Fewer crowds than peak winter
  • Thanksgiving week can see a spike
Rainfall increases, especially towards the end of the month.
December
20-27°C, mild, higher chance of rain, particularly on the north and east coasts.peakpeak
  • Start of peak whale watching season
  • Festive holiday atmosphere
  • Christmas light displays
Very crowded and expensive during the last two weeks.

Annual events worth timing your trip around

January
Humpback Whale Migration

Humpback whales arrive in Hawaii's warm waters to breed and calve, offering prime whale watching opportunities.

April
Merrie Monarch Festival

The premier hula festival in the world, celebrating Hawaiian culture and dance (dates vary, often Easter week).

May
Kona Coffee Festival

A celebration of the island's world-renowned coffee, featuring tastings, farm tours, and competitions.

July
Na Mele o Waimea

A traditional Hawaiian music festival held in the cool upcountry town of Waimea.

August
Hawaii Volcanoes National Park Centennial

Commemorating 100 years of the park, with special events and exhibits (note: this is a historical event, actual centennial was 2016, but the park is always a highlight).

June
Big Island Film Festival

Showcasing independent films, often with a focus on environmental and cultural themes.

May
Lei Day

A statewide celebration of the lei, with lei-making contests and cultural events.

Insider timing tips

  • The Big Island's climate varies drastically by elevation and side of the island (Kona is drier, Hilo is wetter). Always check local forecasts for your specific area.
  • While the Big Island is technically in a hurricane zone, direct hits are rare. The official hurricane season runs June 1st to November 30th, with August and September posing the highest statistical risk.
  • The shoulder seasons of April-May and September-October offer the best balance of pleasant weather, fewer crowds, and more reasonable prices, avoiding both the winter holiday rush and the peak summer heat and congestion.
  • Stargazing at Mauna Kea is best during the drier winter months (November-March) due to clearer atmospheric conditions, though accessibility can be impacted by weather.
  • Local holidays, especially around Christmas and New Year's, can lead to significant price hikes and crowded conditions, even if the weather is not optimal.

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