Climate and monthly weather forecast
Keauhou, HI

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Weather in January

January, the same as December, in Keauhou, Hawaii, is an agreeable winter month, with temperature in the range of an average low of 65.1°F (18.4°C) and an average high of 69.4°F (20.8°C). The onset of January brings an average high-temperature of a still agreeable 69.4°F (20.8°C), nearly matching the December temperature. Weather in January »

Weather in February

The last month of the winter, February, is another pleasant month in Keauhou, Hawaii, with temperature in the range of an average low of 64.9°F (18.3°C) and an average high of 68.9°F (20.5°C). Temperature readings reach their annual highs in February, averaging 68.9°F (20.5°C) and a minimum average of 64.9°F (18.3°C). Weather in February »

Weather in March

The first month of the spring, March, is also an agreeable month in Keauhou, Hawaii, with an average temperature ranging between max 69.3°F (20.7°C) and min 64.8°F (18.2°C). The average high-temperature for March is a still pleasant 69.3°F (20.7°C), closely aligning with the temperature of the preceding month. Weather in March »

Weather in April

April, like March, is another pleasant spring month in Keauhou, Hawaii, with an average temperature ranging between max 69.3°F (20.7°C) and min 64.9°F (18.3°C). The average high-temperature in April, at a still agreeable 69.3°F (20.7°C), mirrors March's climate. Weather in April »

Weather in May

May, the last month of the spring in Keauhou, is another pleasant month, with temperature in the range of an average high of 71.1°F (21.7°C) and an average low of 66.7°F (19.3°C). With May's advent, Keauhou sees an average high-temperature of a still agreeable 71.1°F (21.7°C), subtly shifted from April's 69.3°F (20.7°C). Weather in May »

Weather in June

The first month of the summer, June, is still a pleasant month in Keauhou, Hawaii, with an average temperature varying between 72.1°F (22.3°C) and 68.5°F (20.3°C). Keauhou experiences an average high-temperature of a still agreeable 72.1°F (22.3°C) with the onset of June, subtly varied from May's 71.1°F (21.7°C). Weather in June »

Weather in July

July, like June, is another pleasant summer month in Keauhou, Hawaii, with an average temperature ranging between min 69.1°F (20.6°C) and max 73°F (22.8°C). In July, Keauhou experiences a barely noticeable shift in meteorological conditions, with average high-temperatures moving from 72.1°F (22.3°C) in June to a still pleasant 73°F (22.8°C). Weather in July »

Weather in August

The last month of the summer, August, is also an agreeable month in Keauhou, Hawaii, with an average temperature fluctuating between 73.2°F (22.9°C) and 69.1°F (20.6°C). Temperatures reach their maximum during August and October, recording an average high-temperature of 73.2°F (22.9°C). Weather in August »

Weather in September

September, the first month of the autumn in Keauhou, is also an agreeable month, with temperature in the range of an average high of 73°F (22.8°C) and an average low of 69.8°F (21°C). Keauhou's shift from August to September is accompanied by an average high-temperature of a still agreeable 73°F (22.8°C), a slight deviation from 73.2°F (22.9°C). Weather in September »

Weather in October

October, the same as September, in Keauhou, Hawaii, is an agreeable autumn month, with an average temperature ranging between min 70°F (21.1°C) and max 73.2°F (22.9°C). The highest point of temperatures falls in August and October, when the average high-temperature ascends to 73.2°F (22.9°C). Weather in October »

Weather in November

November, the last month of the autumn in Keauhou, is also an agreeable month, with an average temperature fluctuating between 71.8°F (22.1°C) and 68.5°F (20.3°C). Keauhou marks the arrival of November with an average high-temperature of a still pleasant 71.8°F (22.1°C), hardly different from October's 73.2°F (22.9°C). Weather in November »

Weather in December

December, the first month of the winter in Keauhou, is also an agreeable month, with an average temperature fluctuating between 66.6°F (19.2°C) and 70.5°F (21.4°C). Keauhou experiences a recorded average high-temperature of a still pleasant 70.5°F (21.4°C) in December, closely aligned with November's 71.8°F (22.1°C). Weather in December »

Frequently asked questions

What is the driest month?

The month with the least rainfall is January, when the rain falls for 10.8 days and typically collects 0.75" (19mm) of precipitation.

How much does it rain?

In Keauhou, during the entire year, the rain falls for 216.1 days and collects up to 16.57" (421mm) of precipitation.

What is the month with the lowest UV index?

The months with the lowest UV index are January through April, November and December, with an average maximum UV index of 5.

What part of the year is the coldest?

Temperature records mark February as the coldest month, with highs averaging 68.9°F (20.5°C) and lows at 64.9°F (18.3°C).

What is the least humid month?

With an average relative humidity of 73%, February is the least humid month.

What month is the ocean coldest?

March is the month with the coldest seawater, with an average ocean temperature of 75.9°F (24.4°C).

What month has the most sunshine?

The month with the most sunshine is May, with an average of 10.7h of sunshine.

What are the months with the highest UV index?

May through October, with an average maximum UV index of 6, are months with the highest UV index.

What is the most humid month?

June through September, with an average relative humidity of 81%, are most humid months.

When are the longest days?

The month with the longest days is June, with an average of 13h and 18min of daylight.

What month is the hottest?

Keauhou sees the average highest temperatures during the months of August and October, peaking at 73.2°F (22.9°C).

What is the rainiest month?

The month with the most rainfall is September, when the rain falls for 21.5 days and typically aggregates up to 1.81" (46mm) of precipitation.

When is the ocean warmest in Keauhou?

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

What are the months with the least sunshine?

November and December, with an average of 7.3h of sunshine, are months with the least sunshine.

What is the month with the shortest days?

With an average of 11h and 0min of daylight, December has the shortest days of the year.

Is there Daylight Saving Time (DST)?

Keauhou does not observe Daylight Saving Time (DST). HST timezone is used over the entire year.

Average temperature
Keauhou, HI

Average temperature - Keauhou, HI

The warmest months (with the highest average high temperature) are August and October (73.2°F).
The month with the lowest average high temperature is February (68.9°F).

The month with the highest average low temperature is October (70°F).
The coldest month (with the lowest average low temperature) is March (64.8°F).

Average pressure
Keauhou, HI

Average pressure - Keauhou, HI

The month with the highest atmospheric pressure is April (30.04"Hg).
The months with the lowest atmospheric pressure are September and October (29.96"Hg).

Average wind speed
Keauhou, HI

Average wind speed - Keauhou, HI

The windiest month (with the highest average wind speed) is May (6.3mph).
The calmest month (with the lowest average wind speed) is December (5.3mph).

Average humidity
Keauhou, HI

Average humidity - Keauhou, HI

The months with the highest relative humidity are June, July, August and September (81%).
The month with the lowest relative humidity is February (73%).

Average rainfall
Keauhou, HI

Average rainfall - Keauhou, HI

The wettest month (with the highest rainfall) is September (1.81").
The driest month (with the least rainfall) is January (0.75").

Average rainfall days
Keauhou, HI

Average rainfall days - Keauhou, HI

The month with the highest number of rainy days is August (21.8 days).
The month with the least rainy days is January (10.8 days).

Average sea temperature
Keauhou, HI

Average sea temperature - Keauhou, 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 (76°F).

Average daylight / Average sunshine
Keauhou, HI

Average daylight / Average sunshine - Keauhou, HI

The month with the longest days is June (Average daylight: 13h and 18min).
The month with the shortest days is December (Average daylight: 11h and 0min).

The month with the most sunshine is May (Average sunshine: 10h and 42min).
The months with the least sunshine are November and December (Average sunshine: 7h and 18min).

Average sunshine days
Keauhou, HI

Average sunshine days - Keauhou, HI

The month with the most sunshine days is January (12.7 days).
The month with the least sunshine days is May (3.2 days).

Average UV index
Keauhou, HI

Average UV index - Keauhou, HI

The months with the highest UV index are May, June, July, August, September and October (UV index 6).
The months with the lowest UV index are January, February, March, April, November and December (UV index 5).

Average visibility
Keauhou, HI

Average visibility - Keauhou, 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).

Keauhou, Hawaii, USA

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