Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
December's arrival in Naalehu registers an average high-temperature of a still agreeable 70.5°F (21.4°C), closely aligning with the temperature of the previous month. During December, Naalehu's nighttime temperatures demonstrate a subtle cooling from daytime highs, stabilizing at a comfortable 66.6°F (19.2°C).Humidity
In December, the average relative humidity in Naalehu is 76%.Rainfall
In Naalehu, in December, it is raining for 15.6 days, with typically 1.3" (33mm) of accumulated precipitation. In Naalehu, during the entire year, the rain falls for 216.1 days and collects up to 16.57" (421mm) of precipitation.Daylight
December has the shortest days of the year in Naalehu, Hawaii, with an average of 11h and 0min of daylight.On the first day of December in Naalehu, sunrise is at 6:39 am and sunset at 5:43 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 5:55 pm HST.
Sunshine
The months with the least sunshine are November and December, with an average of 7.3h of sunshine.UV index
January through April, November and December, with an average maximum UV index of 5, are months with the lowest UV index in Naalehu. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: The maximum UV index of 5 during December leads to these instructions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Frequently asked questions
What are the temperatures in Naalehu in December?
What is the average humidity in December in Naalehu?
How many days does it rain in December in Naalehu?
What is the month with the shortest days in Naalehu?
How many hours of daylight does Naalehu have in December?
What time are sunrise and sunset in December in Naalehu?
What are the months with the least sunshine in Naalehu?
How many hours of sunshine does Naalehu have in December?
What are the months with the lowest UV index in Naalehu?
What is the UV index intensity in December in Naalehu?
Average temperature in December
Naalehu, HI
- Average high temperature in December: 70.5°F
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).
- Average low temperature in December: 66.6°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 in December
Naalehu, HI
- Average pressure in December: 29.98"Hg
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 in December
Naalehu, HI
- Average wind speed in December: 5.3mph
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 in December
Naalehu, HI
- Average humidity in December: 76%
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 in December
Naalehu, HI
- Average rainfall in December: 1.3"
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 in December
Naalehu, HI
- Average rainfall days in December: 15.6 days
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 daylight in December /
Average sunshine in December
Naalehu, HI
- Average daylight in December: 11h and 0min
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).
- Average sunshine in December: 7h and 2min
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 in December
Naalehu, HI
- Average sunshine days in December: 8.3 days
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 in December
Naalehu, HI
- Average UV index in December: 5
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 cloud cover in December
Naalehu, HI
- Average cloud cover in December: 18
The month with the most cloud cover is June (Cloud cover 31).
The month with the least cloud cover is January (Cloud cover 15).
Average visibility in December
Naalehu, HI
- Average visibility in December: 6mi
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).
Naalehu, Hawaii, USA
Weather forecast for your location
2. Allow the app to use your location
