Haiku Weather in May
May in Haiku brings high temperatures, with daytime highs of 26°C (79°F) and nights around 22°C (72°F). Quite a bit of rainfall is expected, around 60 mm (2.4 in), so pack an umbrella.
Rainfall in Haiku in May
Typically around 8 days of rainfall are expected, averaging 60 mm (2.4 in) for the month. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.
Temperature in Haiku in May
The perfect temperature in Haiku in May makes it a solid month to visit, with 26°C (79°F) during the day and 22°C (72°F) at night. This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. At 22°C (72°F) overnight, nights are warm enough to sit outside comfortably in light clothing.
Sunshine in Haiku in May
There are approximately 275 hours of sunshine this month, resulting in mostly clear days.
Wind Speed in Haiku in May
Wind speeds average 5 m/s (10 knots) during May. At this speed, gentle to moderate breezes make small trees sway and the wind creates whitecaps on water bodies. Daily variations range from moderate winds to stronger breezes, creating excellent conditions for sailing, kite flying and wind sports.
Average water temperature in May
The water is 25°C (77°F) this month — warm enough that getting in requires no effort at all. Good conditions for swimming, snorkeling, or just floating around.If you favor pleasant temperatures and minimal rainfall, May is one of the best months to visit Haiku.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Hawaii, check out our Haiku's climate page.
Haiku Temperature in May
Min Temperature
22°C (72°F)
Max Temperature
26°C (79°F)
Water Temperature
25°C (77°F) *
Chance of Rain
28%
Precipitation
60 mm (2.4 in)
Rainy days
8 days
Humidity
71% *
Windspeed
5 m/s (10 knots) *
Sunshine
275 hours *
Percentage Sunshine
68% *
Best Places in Hawaii in May
Find out more about the weather in Hawaii and which places have the best travel conditions in this month. See all of Hawaii in May →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Haiku in May
Warm but pleasant conditions in Haiku in May. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Wet weather is likely, so pack waterproof gear for multiple rainy days. With water temperatures around 25°C (77°F), swimming conditions are excellent. Pack your swimsuit, goggles, and maybe some water shoes. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Haiku in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Hawaii, check out our Haiku's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Haiku climate overview or explore weather in Hawaii.
