Climate and monthly weather forecast
Waimalu, HI

Weather in January

January, the same as December, is another warm winter month in Waimalu, Hawaii, with an average temperature varying between 75.7°F (24.3°C) and 69.1°F (20.6°C). In January, the average high-temperature is almost the same as in December - a still warm 75.7°F (24.3°C). Weather in January »

Weather in February

The last month of the winter, February, is another warm month in Waimalu, Hawaii, with an average temperature varying between 75.4°F (24.1°C) and 68°F (20°C). The coldest months are February and March, with an average high-temperature of 75.4°F (24.1°C). Weather in February »

Weather in March

The first month of the spring, March, is still a warm month in Waimalu, Hawaii, with an average temperature fluctuating between 68.5°F (20.3°C) and 75.4°F (24.1°C). February and March, with an average high-temperature of 75.4°F (24.1°C), are the coldest months. Weather in March »

Weather in April

April, like March, in Waimalu, Hawaii, is another warm spring month, with an average temperature ranging between max 76.8°F (24.9°C) and min 70.7°F (21.5°C). In April, the average high-temperature is almost the same as in March - a still warm 76.8°F (24.9°C). Weather in April »

Weather in May

The last month of the spring, May, is another warm month in Waimalu, Hawaii, with an average temperature ranging between min 72.1°F (22.3°C) and max 78.6°F (25.9°C). In May, the average high-temperature is almost the same as in April - a still moderately hot 78.6°F (25.9°C). Weather in May »

Weather in June

June, the first month of the summer in Waimalu, is still a warm month, with an average temperature fluctuating between 79.7°F (26.5°C) and 73.4°F (23°C). In Waimalu, the average high-temperature in June is almost the same as in May - a still warm 79.7°F (26.5°C). Weather in June »

Weather in July

July, the same as June, is a moderately hot summer month in Waimalu, Hawaii, with an average temperature ranging between min 74.5°F (23.6°C) and max 81.1°F (27.3°C). In Waimalu, the average high-temperature in July is essentially the same as in June - a still warm 81.1°F (27.3°C). Weather in July »

Weather in August

August, the last month of the summer in Waimalu, is also a moderately hot month, with an average temperature ranging between max 82°F (27.8°C) and min 74.8°F (23.8°C). August and September, with an average high-temperature of 82°F (27.8°C), are the warmest months. The average heat index in August is estimated at a hot 87.6°F (30.9°C). Weather in August »

Weather in September

September, the first month of the autumn in Waimalu, is also a moderately hot month, with an average temperature varying between 82°F (27.8°C) and 75°F (23.9°C). August and September, with an average high-temperature of 82°F (27.8°C), are the warmest months. In September, the average heat index is estimated at a hot 87.4°F (30.8°C). Weather in September »

Weather in October

October, the same as September, is a moderately hot autumn month in Waimalu, Hawaii, with an average temperature varying between 81.1°F (27.3°C) and 74.7°F (23.7°C). In Waimalu, the average high-temperature in October is relatively the same as in September - a still warm 81.1°F (27.3°C). Weather in October »

Weather in November

November, the last month of the autumn in Waimalu, is another warm month, with temperature in the range of an average high of 79°F (26.1°C) and an average low of 73.2°F (22.9°C). In November, the average high-temperature is almost the same as in October - a still warm 79°F (26.1°C). Weather in November »

Weather in December

The first month of the winter, December, is also a moderately hot month in Waimalu, Hawaii, with an average temperature ranging between max 76.5°F (24.7°C) and min 70.5°F (21.4°C). In Waimalu, the average high-temperature in December is practically the same as in November - a still moderately hot 76.5°F (24.7°C). Weather in December »
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FAQ

How much does it rain in Waimalu?

In Waimalu, Hawaii, during the entire year, the rain falls for 208.4 days and collects up to 16.5" (419mm) of precipitation.

What are the months with the coldest ocean in Waimalu?

January through April, with an average ocean temperature of 75.2°F (24°C), are months with the coldest seawater in Waimalu.

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

January through August, October through December, with an average maximum UV index of 6, are months with the lowest UV index in Waimalu, Hawaii.

What are the coldest months in Waimalu?

February and March, with an average high-temperature of 75.4°F (24.1°C), are the coldest months.

What are the most humid months in Waimalu?

February and December, with an average relative humidity of 76%, are most humid months in Waimalu, Hawaii.

What are the least humid months in Waimalu?

The months with the lowest humidity in Waimalu are April through June and September, with an average relative humidity of 74%.

When are the longest days in Waimalu?

June has the longest days of the year in Waimalu, with an average of 13h and 25min of daylight.

What month has the most sunshine in Waimalu?

With an average of 9.9h of sunshine, June has the most sunshine of the year in Waimalu.

What is the driest month in Waimalu?

The month with the least rainfall in Waimalu is July, when the rain falls for 16.4 days and typically collects 0.71" (18mm) of precipitation.

What is the warmest month in Waimalu?

Warmest months in Waimalu are August and September, with an average high-temperature of 82°F (27.8°C).

What are the months with the warmest ocean in Waimalu?

The months with the warmest seawater in Waimalu, Hawaii, are August through October, with an average ocean temperature of 80.6°F (27°C).

When is the highest UV index in Waimalu?

With an average maximum UV index of 7, September is the month with the highest UV index in Waimalu.

What is the rainiest month in Waimalu?

The month with the most rainfall in Waimalu is October, when the rain falls for 18.4 days and typically aggregates up to 2.09" (53mm) of precipitation.

What is the month with the least sunshine in Waimalu?

November and December, with an average of 6.3h of sunshine, are months with the least sunshine.

What is the month with the shortest days in Waimalu?

With an average of 10h and 52min of daylight, December has the shortest days of the year in Waimalu, Hawaii.

Is there Daylight Saving Time (DST) in Waimalu?

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

Average temperature
Waimalu, HI

Average temperature - Waimalu, HI

The warmest months (with the highest average high temperature) are August and September (82°F).
The months with the lowest average high temperature are February and March (75.4°F).

The month with the highest average low temperature is September (75°F).
The coldest month (with the lowest average low temperature) is February (68°F).

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Average pressure
Waimalu, HI

Average pressure - Waimalu, HI

The month with the highest atmospheric pressure is April (30.06"Hg).
The months with the lowest atmospheric pressure are September and October (29.97"Hg).

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Average wind speed
Waimalu, HI

Average wind speed - Waimalu, HI

The windiest month (with the highest average wind speed) is July (11.3mph).
The calmest month (with the lowest average wind speed) is January (8.4mph).

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Average humidity
Waimalu, HI

Average humidity - Waimalu, HI

The months with the highest relative humidity are February and December (76%).
The months with the lowest relative humidity are April, May, June and September (74%).

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Average rainfall
Waimalu, HI

Average rainfall - Waimalu, HI

The wettest month (with the highest rainfall) is October (2.09").
The driest month (with the least rainfall) is July (0.71").

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Average rainfall days
Waimalu, HI

Average rainfall days - Waimalu, HI

The month with the highest number of rainy days is March (20 days).
The month with the least rainy days is January (13.5 days).

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Average sea temperature
Waimalu, HI

Average sea temperature - Waimalu, HI

The best months for swimming (with the highest average sea temperature) are August, September and October (81°F).
The coldest months (with the lowest average sea temperature) are January, February, March and April (75°F).

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Average daylight / Average sunshine
Waimalu, HI

Average daylight / Average sunshine - Waimalu, HI

The month with the longest days is June (Average daylight: 13h and 25min).
The month with the shortest days is December (Average daylight: 10h and 52min).

The month with the most sunshine is June (Average sunshine: 9h and 54min).
The months with the least sunshine are November and December (Average sunshine: 6h and 18min).

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Average sunshine days
Waimalu, HI

Average sunshine days - Waimalu, HI

The month with the most sunshine days is January (12.3 days).
The month with the least sunshine days is November (6.2 days).

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Average UV index
Waimalu, HI

Average UV index - Waimalu, HI

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

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Average visibility
Waimalu, HI

Average visibility - Waimalu, 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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