Monthly weather forecast and climate
Kahului, HI

What is the coldest month in Kahului?

The coldest month is January, with an average high-temperature of 80.6°F (27°C) and an average low-temperature of 63.3°F (17.4°C).

How much does it rain in Kahului?

In Kahului, Hawaii, during the entire year, the rain falls for 94.7 days, and collects up to 17.8" (453mm) of precipitation.

What is the driest month in Kahului?

The month with the least rainfall in Kahului is June when the rain falls for 5.1 days and typically collects 0.2" (5.1mm) of precipitation.

What is the warmest month in Kahului?

August and September, with an average high-temperature of 88°F (31.1°C), are warmest months in Kahului.

What is the rainiest month in Kahului?

The month with the most rainfall in Kahului, Hawaii, is December when the rain falls for 10.7 days and typically aggregates up to 3.4" (85.1mm) of precipitation.
Average temperature - Kahului, HI
Average humidity - Kahului, HI

The month with the highest relative humidity is January (77.5%).
The month with the lowest relative humidity is August (69.4%).

Average rainfall - Kahului, HI
Average rainfall days - Kahului, HI

The month with the highest number of rainy days is December (10.7 days).
The month with the lowest number of rainy days is September (4.5 days).

Average sea temperature - Kahului, HI

The best month for swimming (with the highest average sea temperature) is September (80°F).
The coldest month (with the lowest average sea temperature) is March (75.6°F).

Average daylight / Average sunshine - Kahului, HI
Average UV index - Kahului, HI
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