Ono-i-lau Weather in May

May in Ono-i-lau averages 26°C (79°F) during the day and 24°C (75°F) at night. Quite a bit of rainfall is typical this month, with around 103 mm (4.1 in) on average. An umbrella is a good idea.

Rainfall in Ono-i-lau in May

On average, there are about 18 days with rain during this month, averaging 103 mm (4.1 in). Expect frequent rainfall this month, and not just light drizzle. When it rains, it tends to come down hard.

Temperature in Ono-i-lau in May

Expect highs of 26°C (79°F) in Ono-i-lau in May, with nights dropping to around 24°C (75°F). Overall, the month follows a fairly predictable daily temperature pattern. Nights are warm at 24°C (75°F). It's worth making sure your accommodation has decent ventilation or air conditioning.

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 prefer dry days with pleasant temperatures, July and October typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.