Kailua-Kona
Hawaii, USA
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Kailua-Kona, HI

A panoramic shot of Kailua-Kona, Hawaii, surrounded by clear waters, and a view of the mountain slope
A panoramic shot of Kailua-Kona, Hawaii, surrounded by clear waters, and a view of the mountain slope
January, like December, in Kailua-Kona, Hawaii, is a moderately hot winter month, with average temperature fluctuating between 81.7°F (27.6°C) and 68.2°F (20.1°C). In Kailua-Kona, the average high-temperature in January is almost the same as in December - a still moderately hot 81.7°F (27.6°C). Weather in January »
The last month of the winter, February, is also a moderately hot month in Kailua-Kona, Hawaii, with average temperature varying between 68°F (20°C) and 81.1°F (27.3°C). The coldest month is February, with an average high-temperature of 81.1°F (27.3°C) and an average low-temperature of 68°F (20°C). Weather in February »

The first month of the spring, March, is still a warm month in Kailua-Kona, Hawaii, with average temperature ranging between min 70°F (21.1°C) and max 82.2°F (27.9°C). In Kailua-Kona, the average high-temperature is almost the same as in February - a still warm 82.2°F (27.9°C). Weather in March »

April, like March, in Kailua-Kona, Hawaii, is a moderately hot spring month, with average temperature fluctuating between 70.5°F (21.4°C) and 82.9°F (28.3°C). In April, the average high-temperature is practically the same as in March - a still warm 82.9°F (28.3°C). Weather in April »

The last month of the spring, May, is also a moderately hot month in Kailua-Kona, Hawaii, with average temperature ranging between min 71.6°F (22°C) and max 83.5°F (28.6°C). In Kailua-Kona, the average high-temperature in May is essentially the same as in April - a still warm 83.5°F (28.6°C). Weather in May »

June, the first month of the summer, in Kailua-Kona, is still a warm month, with average temperature varying between 84.9°F (29.4°C) and 73.6°F (23.1°C). In Kailua-Kona, Hawaii, the average high-temperature is almost the same as in May - a still moderately hot 84.9°F (29.4°C). Weather in June »

July in Kailua-Kona, Hawaii, is a hot summer month, with temperature in the range of an average high of 86°F (30°C) and an average low of 74.1°F (23.4°C). In July, the average high-temperature is relatively the same as in June - a hot 86°F (30°C). Weather in July »

The last month of the summer, August, is another hot month in Kailua-Kona, Hawaii, with average temperature varying between 75°F (23.9°C) and 86.9°F (30.5°C). With an average high-temperature of 86.9°F (30.5°C) and an average low-temperature of 75°F (23.9°C), August is the warmest month. Weather in August »

The first month of the autumn, September, is also a hot month in Kailua-Kona, Hawaii, with temperature in the range of an average high of 86.7°F (30.4°C) and an average low of 74.7°F (23.7°C). In Kailua-Kona, Hawaii, the average high-temperature is almost the same as in August - a still hot 86.7°F (30.4°C). Weather in September »

October, like September, is another tropical autumn month in Kailua-Kona, Hawaii, with average temperature ranging between max 86°F (30°C) and min 74.1°F (23.4°C). In Kailua-Kona, the average high-temperature is practically the same as in September - a still hot 86°F (30°C). Weather in October »

The last month of the autumn, November, is another warm month in Kailua-Kona, Hawaii, with average temperature fluctuating between 84.2°F (29°C) and 71.8°F (22.1°C). In November, the average high-temperature is practically the same as in October - a moderately hot 84.2°F (29°C). Weather in November »

The first month of the winter, December, is also a moderately hot month in Kailua-Kona, Hawaii, with average temperature varying between 82.6°F (28.1°C) and 69.4°F (20.8°C). In December, the average high-temperature is relatively the same as in November - a still moderately hot 82.6°F (28.1°C). Weather in December »

How much does it rain in Kailua-Kona?

During the entire year, Kailua-Kona aggregates up to 18.4" (466.9mm) of precipitation.

What is the coldest month in Kailua-Kona?

February is the coldest month in Kailua-Kona, Hawaii, with an average high-temperature of 81.1°F (27.3°C) and an average low-temperature of 68°F (20°C).

What is the month with the coldest ocean in Kailua-Kona?

The month with the coldest seawater is March, with an average ocean temperature of 75.9°F (24.4°C). Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 75.9°F (24.4°C) water may be enjoyable.

When are the longest days in Kailua-Kona?

The month with the longest days in Kailua-Kona, Hawaii, is June, with an average of 13.3h of daylight.

What is the driest month in Kailua-Kona?

July is the month with the least rainfall, with 0.7" (17.8mm) of accumulated precipitation.

What is the warmest month in Kailua-Kona?

The warmest month in Kailua-Kona, Hawaii, is August, with an average high-temperature of 86.9°F (30.5°C) and an average low-temperature of 75°F (23.9°C).

What month is the ocean warmest in Kailua-Kona?

The month with the warmest seawater in Kailua-Kona, Hawaii, is September, with an average ocean temperature of 80.1°F (26.7°C). For any water activity, surface water temperatures between 77°F (25°C) and 84.2°F (29°C) are considered as excellent and extremely pleasant for lengthened periods.

What is the rainiest month in Kailua-Kona?

December is the month with the most rainfall in Kailua-Kona, Hawaii, with 2.8" (71.6mm) of accumulated precipitation.

What is the month with the shortest days in Kailua-Kona?

December has the shortest days of the year in Kailua-Kona, Hawaii, with an average of 11h of daylight.
Average temperature - Kailua-Kona, HI
Average rainfall - Kailua-Kona, HI
Average sea temperature - Kailua-Kona, 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 - Kailua-Kona, HI

The month with the longest days is June (Average daylight: 13.3h).
The month with shortest days is December (Average daylight: 11h).