Haiku (HI) Sunshine Hours by Month

Sunshine is key to understanding how a place experiences its seasons. This page shows the total number of hours of direct sunlight per month and the average hours per day in Haiku, Maui, Hawaii. The figures are based on a 30-year period (1990–2020) to provide a reliable average.

Monthly hours of sunshine

Haiku experiences sunny spells throughout the year. The sunniest month, July, sees up to 294 hours of sunshine, while February, the least sunny month, still provides a respectable 210 hours. The total annual sunshine amounts to 2989 hours.

Daily hours of sunshine

This means you can enjoy sunny spells year-round. July sees up to 9.8 hours of daily sunshine, perfect for a sunny trip. February, the least sunny month, still offers a generous 7.0 hours of sun despite this cloudier / rainier time of the year.

Average percent of sunshine

On average the sun shines 74% of the time during the day in September, the highest percentage of any month. April has the lowest percentage at 62%.

Haiku enjoys an average of 2989 hours of sunshine annually. Let’s compare this with some popular tourist destinations:

The city of Rome, Italy, experiences 2470 hours of sunshine annually, adding to its charm as a year-round tourist destination.

In contrast, London, UK, receives only about 1659 hours of sunshine per year, known for its frequently overcast and rainy skies.

Boston, USA, enjoys 2629 hours of sunshine annually, with distinct seasons and many bright, sunny days.

Melbourne, Australia, has 2380 hours of sunshine annually, with its famous “four seasons in a day” weather pattern.

March, Haiku’s wettest month, receives 63 mm (2.5 in) of rainfall and has a maximum daytime temperature of 25°C (77°F). During the driest month June you can expect a temperature of 27°C (81°F).

For more detailed insights into the city’s temperatures, check out our Temperature page. To explore more about precipitation patterns, visit our Haiku Precipitation page.