Haiku (HI) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Haiku.
Climate overview of Haiku
Haiku, Maui, Hawaii, has a stable climate with little temperature variation across the year. Average daytime temperatures hover around 26°C (79°F), peaking in September at 28°C (82°F) and dipping in February to 25°C (77°F).
With around 916 mm (36 in) of annual rainfall, the city has moderate precipitation levels. March is the wettest month and June the driest. July is the sunniest month, averaging 9.8 hours of sunshine per day.
Haiku Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Haiku — and find the best time to visit.
Monthly Temperature in Haiku
With minimal seasonal shifts, Haiku experiences a constant climate year-round. Typically, average maximum daytime temperatures range from a comfortable 28°C (82°F) in September to a comfortable 25°C (77°F) in the coolest month, February.
Nights vary from 23°C (73°F) in September to around 20°C (68°F) during the colder months.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Haiku
Generally, Haiku receives mid-range precipitation levels, with 916 mm (36 in) annually. Haiku offers a pleasant mix of wetter and slightly drier months. The difference in precipitation between the wettest month March (104 mm (4.1 in)) and the driest month June (58 mm (2.3 in)) is not too significant. For more details, please visit our Haiku Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Haiku
Haiku offers a pleasant mix of sunny and slightly overcast days. The difference in sunshine hours between July (9.8 hours daily) and February (7.0 hours daily) provides a bit of variety for visitors and residents.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Water Temperature in Haiku
The mean water temperature over the year ranges from 24°C (75°F) in January to 27°C (81°F) in September.
Water temperature over the year
Humidity in Haiku by Month
The relative humidity is high throughout the year in Haiku.
The city experiences its highest humidity in January, reaching 78%. In August, the humidity drops to its lowest level at 69%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Wind Speed in Haiku
The mean wind speed over the year ranges from 4 m/s (8 knots) in January, February, October, November and December to 6 m/s (12 knots) in June, July and August. What does this mean?
The mean monthly wind speed over the year (meters per second)
Best Time to Visit Haiku
Frequently asked questions about the climate in Haiku
What is the best time to visit Haiku?
January, February, April, May, June, July, August, September, October, November and December typically offer the most optimal weather in Haiku. In contrast, March tends to have less optimal conditions.
What temperatures can I expect in Haiku?
Daytime highs range from 25°C (77°F) in February to 28°C (82°F) in September. Nighttime lows range from 20°C (68°F) to 23°C (73°F). Temperatures stay relatively stable year-round.
How much rain does Haiku get?
Annual rainfall is around 916 mm (36 in). March is the wettest month with 104 mm (4.1 in), while June is the driest with 58 mm (2.3 in).
How sunny is Haiku?
Haiku receives around 2,989 hours of sunshine per year. July is the sunniest month with 294 hours, while February is the cloudiest with just 210 hours. Overall, Haiku enjoys abundant sunshine.
Haiku 3-Day Forecast
Haiku (HI) 3-Day Forecast
Haiku on the map
Haiku is highlighted — select any city to see its climate.
Popular this month
Where to go in July — average daytime high across popular destinations.
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