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

December weather forecast and climate
Kīholo, HI

The first month of the winter, December, is also a moderately hot month in Kīholo, Hawaii, with average temperature ranging between max 74.8°F (23.8°C) and min 71.1°F (21.7°C).

Temperature

In Kīholo, the average high-temperature is almost the same as in November - a still moderately hot 74.8°F (23.8°C). In Kīholo, the average low-temperature is 71.1°F (21.7°C).

Humidity

In Kīholo, the average relative humidity in December is 73%.

Rainfall

In Kīholo, in December, during 9.4 rainfall days, 0.67" (17mm) of precipitation is typically accumulated. Throughout the year, there are 136 rainfall days, and 8.5" (216mm) of precipitation is accumulated.

Daylight

December has the shortest days of the year, with an average of 10.9h of daylight.

Sunshine

December has the least sunshine of the year in Kīholo, with an average of 7.4h of sunshine.

UV index

Months with the highest UV index in Kīholo are January through December, with an average maximum UV index of 6. Months with the lowest UV index are January through December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to the Sun's UV rays for the ordinary person.
Note: In December, the average maximum UV index of 6 translate into the following recommendations:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the temperature in December in Kīholo?

In December, in Kīholo, Hawaii, the average high-temperature is 74.8°F (23.8°C), and the average low-temperature is 71.1°F (21.7°C).

What is the average humidity in December in Kīholo?

The average relative humidity in December is 73%.

How many days does it rain in December in Kīholo?

In Kīholo, in December, during 9.4 rainfall days, 0.67" (17mm) of precipitation is typically accumulated.

What is the month with the shortest days in Kīholo?

December has the shortest days of the year in Kīholo, with an average of 10.9h of daylight.

What is the average length of the day in December in Kīholo?

The average length of the day in December in Kīholo is 10.9h.

What is the month with the least sunshine in Kīholo?

December has the least sunshine of the year in Kīholo, with an average of 7.4h of sunshine.

How many hours of sunshine does Kīholo have in December?

In Kīholo, Hawaii, the average sunshine in December is 7.4h.

What are the months with the highest UV index in Kīholo?

January through December, with an average maximum UV index of 6, are months with the highest UV index in Kīholo.

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

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

What is the UV index reading in December in Kīholo?

In Kīholo, Hawaii, the average daily maximum UV index in December is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from the exposure to the Sun's UV rays.
Average temperature in December - Kīholo, HI
  • Average high temperature in December: 23.8°C

The warmest month (with the highest average high temperature) is August (25.8°C).
The month with the lowest average high temperature is February (22.9°C).

  • Average low temperature in December: 21.7°C

Months with the highest average low temperature are August, September and October (23.8°C).
The coldest month (with the lowest average low temperature) is March (20.8°C).

Average humidity in December - Kīholo, HI
  • Average humidity in December: 73%

Months with the highest relative humidity are June, July and August (77%).
The month with the lowest relative humidity is February (71%).

Average rainfall in December - Kīholo, HI
  • Average rainfall in December: 17mm

The wettest month (with the highest rainfall) is February (25mm).
The driest month (with the lowest rainfall) is January (12mm).

Average rainfall days in December - Kīholo, HI
  • Average rainfall days in December: 9.4 days

The month with the highest number of rainy days is May (14.4 days).
The month with the lowest number of rainy days is February (8.1 days).

Average daylight in December / Average sunshine in December - Kīholo, HI
  • Average daylight in December: 10.9h

The month with the longest days is June (Average daylight: 13.3h).
The month with shortest days is December (Average daylight: 10.9h).

  • Average sunshine in December: 7.4h

The month with most sunshine is June (Average sunshine: 11.4h).
The month with least sunshine is December (Average sunshine: 7.4h).

Average UV index in December - Kīholo, HI
  • Average UV index in December: 6

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