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
The advent of December brings an average high-temperature of a still warm 74.5°F (23.6°C), almost identical to the preceding month. An average low-temperature of 65.3°F (18.5°C) is noted in Rio during the month of December.Humidity
In Rio, the average relative humidity in December is 76%.Rainfall
In December, in Rio, Florida, the rain falls for 9.3 days. Throughout December, 0.71" (18mm) of precipitation is accumulated. In Rio, during the entire year, the rain falls for 168.1 days and collects up to 14.09" (358mm) of precipitation.Daylight
December has the shortest days of the year in Rio, with an average of 10h and 30min of daylight.On the first day of December in Rio, sunrise is at 6:53 am and sunset at 5:26 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 5:38 pm EST.
Sunshine
The months with the least sunshine are January and December, with an average of 6.1h of sunshine.UV index
January and December, with an average maximum UV index of 5, are months with the lowest UV index in Rio. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: In December, the maximum UV index of 5 transforms into these recommendations:
Preventative actions are necessary - Recommendations to ward off sunburn are given. Around midday, solar radiation is most harmful; hence, exposure should be limited. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Frequently asked questions
What are the temperatures in Rio in December?
What is the average humidity in December in Rio?
How much does it rain in Rio in December?
What is the month with the shortest days in Rio?
How many hours of daylight does Rio have in December?
When are sunrise and sunset in December in Rio?
What is the month with the least sunshine in Rio?
How long on average sun shines in December in Rio?
What are the months with the lowest UV index in Rio?
What is the UV index intensity in December in Rio?
Average temperature in December
Rio, FL
- Average high temperature in December: 74.5°F
The warmest month (with the highest average high temperature) is August (87.1°F).
The month with the lowest average high temperature is January (71.4°F).
- Average low temperature in December: 65.3°F
The month with the highest average low temperature is August (79.3°F).
The coldest month (with the lowest average low temperature) is January (61.2°F).
Average pressure in December
Rio, FL
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is September (29.96"Hg).
Average wind speed in December
Rio, FL
- Average wind speed in December: 9.9mph
The windiest months (with the highest average wind speed) are January, March and November (10.3mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).
Average humidity in December
Rio, FL
- Average humidity in December: 76%
The months with the highest relative humidity are June and August (78%).
The month with the lowest relative humidity is March (70%).
Average rainfall in December
Rio, FL
- Average rainfall in December: 0.71"
The wettest month (with the highest rainfall) is August (2.56").
The driest month (with the least rainfall) is January (0.39").
Average rainfall days in December
Rio, FL
- Average rainfall days in December: 9.3 days
The month with the highest number of rainy days is August (23.1 days).
The month with the least rainy days is February (7.7 days).
Average daylight in December /
Average sunshine in December
Rio, FL
- Average daylight in December: 10h and 3min
The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).
- Average sunshine in December: 6h and 1min
The months with the most sunshine are July and August (Average sunshine: 10h and 54min).
The months with the least sunshine are January and December (Average sunshine: 6h and 6min).
Average sunshine days in December
Rio, FL
- Average sunshine days in December: 17.8 days
The month with the most sunshine days is January (19.5 days).
The month with the least sunshine days is August (3.4 days).
Average UV index in December
Rio, FL
- Average UV index in December: 5
The months with the highest UV index are May, June, July, August and September (UV index 7).
The months with the lowest UV index are January and December (UV index 5).
Average cloud cover in December
Rio, FL
- Average cloud cover in December: 34
The months with the most cloud cover are January, November and December (Cloud cover 34).
The months with the least cloud cover are May and July (Cloud cover 26).
Average visibility in December
Rio, FL
- 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).
Rio, Florida, USA
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