Honolulu, Hawaii Weather in May

Warm days, passing showers

May feels warm and a little sticky, with afternoon highs around 26°C and evenings staying mild. Rain falls on several days, but there's still plenty of sunshine. A brief shower needn't derail a morning at Waikiki Beach or a walk around the grounds of ʻIolani Palace. Keep indoor sights, such as the Bishop Museum, in mind for a wetter spell.

For hikers, the climb up Diamond Head is a good fit before the day feels hottest. The views are lovely, but the exposed trail can feel uncomfortable in the midday sun.

Lei Day and Memorial Day

May brings Lei Day on May 1, with lei-making, music and hula celebrating Hawaiian culture. Honolulu's celebration has been held at Kapiʻolani Park, near Waikiki. Memorial Day brings Lantern Floating Hawaiʻi at Ala Moana Beach Park, where people gather to float lanterns in remembrance. It's moving, but the beach gets very crowded around the event.

Families who enjoy local traditions may find Lei Day more relaxed than a big beach event.

Crowds and local tips

May is usually a shoulder-season month, so Honolulu tends to feel less packed than during summer and the winter holiday rush. Prices can also be gentler than in those peak periods, though Memorial Day weekend draws visitors and fills popular spots.

For a useful local stop, pair a walk through Kapiʻolani Park with a plate lunch from nearby Waikiki. If showers pass through, the park's open lawns can get muddy, so stick to paved paths. The weather suits sightseeing and beach time, but don't count on every day staying dry.