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 brings an average high-temperature of a still warm 75.7°F (24.3°C), showing a slight difference from November's 77.7°F (25.4°C). During December, Olowalu's nights hold steady with an average temperature of 72.9°F (22.7°C), barely dropping from the daytime highs.Humidity
In December, the average relative humidity is 75%.Rainfall
The months with the most rainfall in Olowalu are March and December, with an average 0.87" (22mm) of precipitation.Daylight
The month with the shortest days in Olowalu, Hawaii, is December, with an average of 10h and 54min of daylight.On the first day of December, sunrise is at 6:47 am and sunset at 5:44 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 5:56 pm HST.
Sunshine
With an average of 7h of sunshine, December has the least sunshine of the year in Olowalu.UV index
January through June, November and December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the ordinary person.Note: An average maximum UV index of 6 in December leads to these recommendations:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Frequently asked questions
What is the temperature in December in Olowalu?
What is the average humidity in December in Olowalu?
What is the wettest month in Olowalu?
How much does it rain in Olowalu in December?
What is the month with the shortest days in Olowalu?
How many hours of daylight does Olowalu have in December?
What time are sunrise and sunset in December in Olowalu?
What is the month with the least sunshine in Olowalu?
How long on average sun shines in December in Olowalu?
What are the months with the lowest UV index in Olowalu?
How high is the UV index in December in Olowalu?
Average temperature in December
Olowalu, HI
- Average high temperature in December: 75.7°F
The warmest month (with the highest average high temperature) is September (79.9°F).
The month with the lowest average high temperature is February (73.9°F).
- Average low temperature in December: 72.9°F
The month with the highest average low temperature is October (76.5°F).
The coldest months (with the lowest average low temperature) are February and March (70.7°F).
Average pressure in December
Olowalu, HI
- Average pressure in December: 29.99"Hg
The month with the highest atmospheric pressure is April (30.05"Hg).
The months with the lowest atmospheric pressure are September and October (29.97"Hg).
Average wind speed in December
Olowalu, HI
- Average wind speed in December: 11.7mph
The windiest month (with the highest average wind speed) is June (13.6mph).
The calmest month (with the lowest average wind speed) is January (10.4mph).
Average humidity in December
Olowalu, HI
- Average humidity in December: 75%
The months with the highest relative humidity are July and August (76%).
The months with the lowest relative humidity are January and February (74%).
Average rainfall in December
Olowalu, HI
- Average rainfall in December: 0.87"
The wettest months (with the highest rainfall) are March and December (0.87").
The driest month (with the least rainfall) is June (0.2").
Average rainfall days in December
Olowalu, HI
- Average rainfall days in December: 9.2 days
The month with the highest number of rainy days is March (11.9 days).
The month with the least rainy days is June (6.6 days).
Average daylight in December /
Average sunshine in December
Olowalu, HI
- Average daylight in December: 10h and 5min
The month with the longest days is June (Average daylight: 13h and 24min).
The month with the shortest days is December (Average daylight: 10h and 54min).
- Average sunshine in December: 7h and 0min
The month with the most sunshine is June (Average sunshine: 11h and 30min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).
Average sunshine days in December
Olowalu, HI
- Average sunshine days in December: 17.7 days
The month with the most sunshine days is June (19.9 days).
The month with the least sunshine days is March (15.2 days).
Average UV index in December
Olowalu, HI
- Average UV index in December: 6
The months with the highest UV index are July, August, September and October (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, November and December (UV index 6).
Average cloud cover in December
Olowalu, HI
- Average cloud cover in December: 24
The month with the most cloud cover is March (Cloud cover 30).
The months with the least cloud cover are June and September (Cloud cover 21).
Average visibility in December
Olowalu, 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).
Olowalu, Hawaii, USA
Weather forecast for your location
2. Allow the app to use your location