Wailua
Hawaii, USA
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Wailua, HI

January, like December, in Wailua, Hawaii, is another warm winter month, with average temperature ranging between min 69.6°F (20.9°C) and max 74.7°F (23.7°C). In January, the average high-temperature is essentially the same as in December - a still moderately hot 74.7°F (23.7°C). Weather in January »

The last month of the winter, February, is another pleasant month in Wailua, Hawaii, with average temperature fluctuating between 68.5°F (20.3°C) and 73.2°F (22.9°C). February and March, with an average high-temperature of 73.2°F (22.9°C), are the coldest months. Weather in February »

March, the first month of the spring, in Wailua, is still a pleasant month, with average temperature fluctuating between 73.2°F (22.9°C) and 68.9°F (20.5°C). The coldest months are February and March, with an average high-temperature of 73.2°F (22.9°C). Weather in March »

April is a moderately hot spring month in Wailua, Hawaii, with average temperature ranging between max 74.8°F (23.8°C) and min 70.9°F (21.6°C). In Wailua, the average high-temperature is essentially the same as in March - a warm 74.8°F (23.8°C). Weather in April »

May, the last month of the spring, in Wailua, is another warm month, with average temperature varying between 76.8°F (24.9°C) and 72.1°F (22.3°C). In Wailua, the average high-temperature is relatively the same as in April - a still moderately hot 76.8°F (24.9°C). Weather in May »

The first month of the summer, June, is still a warm month in Wailua, Hawaii, with average temperature ranging between min 73.9°F (23.3°C) and max 78.3°F (25.7°C). In June, the average high-temperature is almost the same as in May - a still warm 78.3°F (25.7°C). Weather in June »

July, like June, in Wailua, Hawaii, is a moderately hot summer month, with temperature in the range of an average low of 75°F (23.9°C) and an average high of 79°F (26.1°C). In July, the average high-temperature is almost the same as in June - a still warm 79°F (26.1°C). Weather in July »

The last month of the summer, August, is also a moderately hot month in Wailua, Hawaii, with average temperature varying between 79.5°F (26.4°C) and 75.7°F (24.3°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 »

The first month of the autumn, September, is also a moderately hot month in Wailua, Hawaii, with average temperature ranging between min 75.9°F (24.4°C) and max 79.7°F (26.5°C). The warmest month is September, with an average high-temperature of 79.7°F (26.5°C) and an average low-temperature of 75.9°F (24.4°C). Weather in September »

October, like September, in Wailua, Hawaii, is a moderately hot autumn month, with average temperature fluctuating between 75.4°F (24.1°C) and 79.5°F (26.4°C). In Wailua, the average high-temperature is practically the same as in September - a still warm 79.5°F (26.4°C). Weather in October »

November, the last month of the autumn, in Wailua, is also a moderately hot month, with average temperature varying between 77.2°F (25.1°C) and 74.1°F (23.4°C). In November, the average high-temperature is practically the same as in October - a still warm 77.2°F (25.1°C). Weather in November »

December, the first month of the winter, in Wailua, is still a warm month, with average temperature fluctuating between 71.8°F (22.1°C) and 75.4°F (24.1°C). In Wailua, the average high-temperature is practically the same as in November - a still warm 75.4°F (24.1°C). Weather in December »

What is the least humid month in Wailua?

January is the least humid month, with an average relative humidity of 75%.

How many days does it rain in Wailua?

Throughout the year, in Wailua, there are 218.4 rainfall days, and 22.13" (562mm) of precipitation is accumulated.

What are the months with the lowest UV index in Wailua?

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

What is the coldest month in Wailua?

The coldest months are February and March, with an average high-temperature of 73.2°F (22.9°C).

What is the wettest month in Wailua?

The month with the most rainfall is March when the rain falls for 18.6 days and typically aggregates up to 2.52" (64mm) of precipitation.

When is the ocean coldest in Wailua?

March is the month with the coldest seawater, with an average ocean temperature of 74.8°F (23.8°C).

What is the driest month in Wailua?

April is the month with the least rainfall. Rain falls for 18.3 days and accumulates 1.3" (33mm) of precipitation.

What are the most humid months in Wailua?

Months with the highest humidity in Wailua, Hawaii, are June through August, October and December, with an average relative humidity of 77%.

When are the longest days in Wailua?

The month with the longest days in Wailua, Hawaii, is June, with an average of 13.5h of daylight.

What month has the most sunshine in Wailua?

The month with the most sunshine in Wailua, Hawaii, is June, with an average of 9.7h of sunshine.

What is the warmest month in Wailua?

September is the warmest month, with an average high-temperature of 79.7°F (26.5°C) and an average low-temperature of 75.9°F (24.4°C).

What month is the ocean warmest in Wailua?

September is the month with the warmest seawater, with an average ocean temperature of 80.2°F (26.8°C).

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

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

What is the month with the least sunshine in Wailua?

November has the least sunshine of the year, with an average of 6.2h of sunshine.

What is the month with the shortest days in Wailua?

December has the shortest days of the year, with an average of 10.8h of daylight.
Average temperature - Wailua, HI
Average humidity - Wailua, HI

Months with the highest relative humidity are June, July, August, October and December (77%).
The month with the lowest relative humidity is January (75%).

Average rainfall - Wailua, HI
Average rainfall days - Wailua, HI

The month with the highest number of rainy days is August (21.1 days).
The month with the lowest number of rainy days is January (12.5 days).

Average sea temperature - Wailua, HI

The best month for swimming (with the highest average sea temperature) is September (80.2°F).
The coldest month (with the lowest average sea temperature) is March (74.8°F).

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

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