Honolulu month by month
Plan your visit to Honolulu by month. Compare weather, crowds, events, and prices across all twelve months with historical climate data.
Honolulu's year splits on rainfall, not temperature. The average high ranges from 25°C in February to 29°C in July through October, a 4-degree band that barely registers on skin. Rain days range from 5 to 14 across the 12 months. March and April are the wettest at 14 rain days each. The dry season runs June through September, when highs reach 28 to 29°C and rain days drop to 5 or 6. August holds the floor at 5. December through February log 7 to 10, with February the driest winter month at 7.
TTDI publishes 12 month guides beneath this page. If your trip falls between June and September, start with August for the driest window at 29°C and 5 rain days. For winter travel, February combines 25°C highs with 7 rain days, versus January's 10 at 26°C. Open the March and April pages before any spring booking. Both record 14 rain days, the highest count in the measured year, and highs of 26°C.
August records Honolulu's fewest rain days at 5 against an average high of 29°C, a temperature shared by July, September, and October but with drier skies than any of them.
- January
- High
- 26°C
- Low
- 20°C
- Rain
- 71 mm
January is the most expensive month to visit Honolulu, and it is also the wettest. Those two facts coexist because the demand has nothing to do with local conditions. Mainland…
- February
- High
- 25°C
- Low
- 20°C
- Rain
- 44 mm
February in Honolulu sits right in the middle of peak tourist season, and you'll feel it the moment you try to book a Waikiki hotel. Mainland visitors escaping sub-zero winters…
- March
- High
- 26°C
- Low
- 20°C
- Rain
- 58 mm
March in Honolulu is the last reliable month of humpback whale season. The mothers and calves that arrived in Hawaiian waters around November are at their most active now,…
- April
- High
- 26°C
- Low
- 21°C
- Rain
- 59 mm
April in Honolulu marks the tail end of the wet season, and you can feel the shift. Rainfall for the month runs about 59mm across roughly 14 days, but most of those showers blow…
- May
- High
- 27°C
- Low
- 22°C
- Rain
- 60 mm
May in Honolulu is defined by one phrase locals repeat every year. May Day is Lei Day. On May 1, Kapiolani Park fills with lei-making competitions, hula performances, and the…
- June
- High
- 28°C
- Low
- 23°C
- Rain
- 17 mm
June is the driest month of the year in Honolulu, averaging 17mm of rain across 6 days compared to 71mm in January and 72mm in December. Daytime highs reach 28.3°C (83°F) and…
- July
- High
- 29°C
- Low
- 23°C
- Rain
- 18 mm
July in Honolulu is defined by one fact above all else. This is peak season. Mainland families pour into Waikiki the moment school lets out, and hotel rates climb to their highest…
- August
- High
- 29°C
- Low
- 23°C
- Rain
- 25 mm
August in Honolulu means peak-season prices and the warmest ocean water of the year, around 27°C (80°F). That combination tends to define the experience. Families from the U.S.…
- September
- High
- 29°C
- Low
- 23°C
- Rain
- 19 mm
September is one of the quietest months to visit Honolulu, and that's precisely its appeal. Summer vacation ended across the U.S. mainland in mid-August, and the holiday rush won't…
- October
- High
- 29°C
- Low
- 23°C
- Rain
- 28 mm
October in Honolulu sits in a sweet spot that most visitors don't know about. Summer's peak crowds have thinned out, hotel rates have dropped from their June-August highs, and the…
- November
- High
- 28°C
- Low
- 22°C
- Rain
- 31 mm
November is when Honolulu's North Shore transforms into the big-wave capital of the Pacific. Swells that spent weeks building across open ocean start hitting Sunset Beach and…
- December
- High
- 26°C
- Low
- 21°C
- Rain
- 72 mm
December is the most expensive month to visit Honolulu. That single fact should frame every other detail. Hotel rates along Waikiki Beach climb 50-70% above their annual averages,…