Climate and monthly weather forecast
Kahului, HI

Weather in January

January, the same as December, is another warm winter month in Kahului, Hawaii, with an average temperature varying between 74.7°F (23.7°C) and 71.6°F (22°C). In Kahului, the average high-temperature in January is relatively the same as in December - a still moderately hot 74.7°F (23.7°C). Weather in January »

Weather in February

February, the last month of the winter in Kahului, is also a moderately hot month, with temperature in the range of an average low of 70.7°F (21.5°C) and an average high of 73.9°F (23.3°C). The coldest month is February, with an average high-temperature of 73.9°F (23.3°C) and an average low-temperature of 70.7°F (21.5°C). Weather in February »

Weather in March

March, the first month of the spring in Kahului, is still a warm month, with an average temperature ranging between min 70.7°F (21.5°C) and max 74.3°F (23.5°C). In March, the average high-temperature is relatively the same as in February - a still warm 74.3°F (23.5°C). Weather in March »

Weather in April

April, the same as March, is another warm spring month in Kahului, Hawaii, with temperature in the range of an average low of 72.1°F (22.3°C) and an average high of 75.6°F (24.2°C). In April, the average high-temperature is relatively the same as in March - a still warm 75.6°F (24.2°C). Weather in April »

Weather in May

May, the last month of the spring in Kahului, is also a moderately hot month, with an average temperature varying between 73.4°F (23°C) and 77°F (25°C). In Kahului, the average high-temperature in May is almost the same as in April - a still moderately hot 77°F (25°C). Weather in May »

Weather in June

The first month of the summer, June, is also a moderately hot month in Kahului, Hawaii, with an average temperature ranging between max 77.9°F (25.5°C) and min 74.7°F (23.7°C). In Kahului, Hawaii, the average high-temperature in June is almost the same as in May - a still moderately hot 77.9°F (25.5°C). Weather in June »

Weather in July

July, like June, in Kahului, Hawaii, is another warm summer month, with an average temperature fluctuating between 78.8°F (26°C) and 75.6°F (24.2°C). In July, the average high-temperature is practically the same as in June - a still warm 78.8°F (26°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Kahului, Hawaii, with temperature in the range of an average low of 76.3°F (24.6°C) and an average high of 79.5°F (26.4°C). In August, the average high-temperature is practically the same as in July - a still moderately hot 79.5°F (26.4°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Kahului, Hawaii, with an average temperature ranging between min 76.1°F (24.5°C) and max 79.9°F (26.6°C). September is the warmest month, with an average high-temperature of 79.9°F (26.6°C) and an average low-temperature of 76.1°F (24.5°C). Weather in September »

Weather in October

October, the same as September, is another warm autumn month in Kahului, Hawaii, with an average temperature ranging between max 79.3°F (26.3°C) and min 76.5°F (24.7°C). In Kahului, the average high-temperature in October is almost the same as in September - a still moderately hot 79.3°F (26.3°C). Weather in October »

Weather in November

November, the last month of the autumn in Kahului, is another warm month, with temperature in the range of an average low of 74.8°F (23.8°C) and an average high of 77.7°F (25.4°C). In Kahului, the average high-temperature in November is essentially the same as in October - a still moderately hot 77.7°F (25.4°C). Weather in November »

Weather in December

The first month of the winter, December, is also a moderately hot month in Kahului, Hawaii, with temperature in the range of an average low of 72.9°F (22.7°C) and an average high of 75.7°F (24.3°C). In Kahului, the average high-temperature in December is practically the same as in November - a still moderately hot 75.7°F (24.3°C). Weather in December »
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FAQ

What are the least humid months in Kahului?

January and February, with an average relative humidity of 74%, are the least humid months in Kahului.

How much does it rain in Kahului?

Throughout the year, in Kahului, there are 103.4 rainfall days, and 6.57" (167mm) of precipitation is accumulated.

What is the month with the lowest UV index in Kahului?

January through June, November and December, with an average maximum UV index of 6, are months with the lowest UV index.

What is the coldest month in Kahului?

With an average high-temperature of 73.9°F (23.3°C) and an average low-temperature of 70.7°F (21.5°C), February is the coldest month in Kahului.

What is the rainiest month in Kahului?

The months with the most rainfall in Kahului are March and December, with an average 0.87" (22mm) of precipitation.

When is the ocean coldest in Kahului?

March is the month with the coldest seawater, with an average ocean temperature of 75.7°F (24.3°C).

What is the driest month in Kahului?

June is the month with the least rainfall in Kahului, Hawaii. Rain falls for 6.6 days and accumulates 0.2" (5mm) of precipitation.

When are the longest days in Kahului?

With an average of 13h and 23min of daylight, June has the longest days of the year.

What month has the most sunshine in Kahului?

With an average of 11.5h of sunshine, June has the most sunshine of the year in Kahului, Hawaii.

What are the most humid months in Kahului?

The months with the highest humidity in Kahului are July and August, with an average relative humidity of 76%.

What is the month with the highest UV index in Kahului?

The months with the highest UV index in Kahului, Hawaii, are July through October, with an average maximum UV index of 7.

What is the warmest month in Kahului?

September is the warmest month in Kahului, Hawaii, with an average high-temperature of 79.9°F (26.6°C) and an average low-temperature of 76.1°F (24.5°C).

When is the ocean warmest in Kahului?

With an average ocean temperature of 80.1°F (26.7°C), September is the month with the warmest seawater.

What is the month with the shortest days in Kahului?

The month with the shortest days in Kahului is December, with an average of 10h and 53min of daylight.

Is there Daylight Saving Time (DST) in Kahului?

Kahului, Hawaii, does not observe Daylight Saving Time (DST). HST timezone is used throughout the entire year.

What is the month with the least sunshine in Kahului?

December has the least sunshine of the year in Kahului, with an average of 7h of sunshine.

Average temperature
Kahului, HI

Average temperature - Kahului, HI

The warmest month (with the highest average high temperature) is September (79.9°F).
The month with the lowest average high temperature is February (73.9°F).

The month with the highest average low temperature is October (76.5°F).
The coldest months (with the lowest average low temperature) are February and March (70.7°F).

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Average pressure
Kahului, HI

Average pressure - Kahului, HI

The month with the highest atmospheric pressure is April (30.05"Hg).
The months with the lowest atmospheric pressure are September and October (29.97"Hg).

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Average wind speed
Kahului, HI

Average wind speed - Kahului, HI

The windiest month (with the highest average wind speed) is June (13.6mph).
The calmest month (with the lowest average wind speed) is January (10.4mph).

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Average humidity
Kahului, HI

Average humidity - Kahului, HI

The months with the highest relative humidity are July and August (76%).
The months with the lowest relative humidity are January and February (74%).

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Average rainfall
Kahului, HI

Average rainfall - Kahului, HI

The wettest months (with the highest rainfall) are March and December (0.87").
The driest month (with the least rainfall) is June (0.2").

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Average rainfall days
Kahului, HI

Average rainfall days - Kahului, HI

The month with the highest number of rainy days is March (11.9 days).
The month with the least rainy days is June (6.6 days).

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Average sea temperature
Kahului, HI

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).

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Average daylight / Average sunshine
Kahului, HI

Average daylight / Average sunshine - Kahului, HI

The month with the longest days is June (Average daylight: 13h and 23min).
The month with the shortest days is December (Average daylight: 10h and 53min).

The month with the most sunshine is June (Average sunshine: 11h and 30min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).

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Average sunshine days
Kahului, HI

Average sunshine days - Kahului, HI

The month with the most sunshine days is June (19.9 days).
The month with the least sunshine days is March (15.2 days).

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Average UV index
Kahului, HI

Average UV index - Kahului, HI

The months with the highest UV index are July, August, September and October (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, November and December (UV index 6).

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Average visibility
Kahului, HI

Average visibility - Kahului, HI

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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