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 sea temperature 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
Ribeirão da Ilha marks the start of December with an average high-temperature of a still warm 26.1°C (79°F), hinting at a slight fluctuation from November's 23.9°C (75°F). The average nighttime temperature lowers to a pleasant 20.7°C (69.3°F) throughout December.Humidity
In Ribeirão da Ilha, the average relative humidity in December is 82%.Rainfall
In Ribeirão da Ilha, in December, during 16 rainfall days, 57mm (2.24") of precipitation is typically accumulated. Throughout the year, in Ribeirão da Ilha, there are 172.2 rainfall days, and 772mm (30.39") of precipitation is accumulated.Sea temperature
In December, the average sea temperature is 24.1°C (75.4°F).Note: If someone is sensitive to cold, the enjoyment of swimming in 24.1°C (75.4°F) water hinges on factors like sunshine, wind, and the current air temperature. (For context: Olympic swimming competitions are held in water temperatures of 25°C (77°F) to 28°C (82.4°F).)
Daylight
The month with the longest days in Ribeirão da Ilha, Brazil, is December, with an average of 13h and 54min of daylight.On the first day of the month, sunrise is at 05:10 and sunset at 18:56. On the last day of December, in Ribeirão da Ilha, Brazil, sunrise is at 05:21 and sunset at 19:13 -03.
Sunshine
The average sunshine in December in Ribeirão da Ilha is 7.5h.UV index
The months with the highest UV index in Ribeirão da Ilha are January through April, November and December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index, 6 during December, leads to the following recommendations:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Be careful! The Sun's UV radiation is accentuated by reflecting off sand and water.
Frequently asked questions
What are December temperatures in Ribeirão da Ilha?
What is the average humidity in December in Ribeirão da Ilha?
How much does it rain in Ribeirão da Ilha in December?
What is the sea temperature in December in Ribeirão da Ilha?
When are the longest days in Ribeirão da Ilha?
What is the average length of the day in December in Ribeirão da Ilha?
What time are sunrise and sunset in December in Ribeirão da Ilha?
How long on average sun shines in December in Ribeirão da Ilha?
What is the month with the highest UV index in Ribeirão da Ilha?
What is the UV index intensity in December in Ribeirão da Ilha?
Average temperature in December
Ribeirão da Ilha, Brazil
- Average high temperature in December: 26.1°C
The warmest month (with the highest average high temperature) is February (27.4°C).
The month with the lowest average high temperature is July (19.2°C).
- Average low temperature in December: 20.7°C
The month with the highest average low temperature is February (22.5°C).
The coldest month (with the lowest average low temperature) is July (14.3°C).
Average pressure in December
Ribeirão da Ilha, Brazil
- Average pressure in December: 1012.1mbar
The month with the highest atmospheric pressure is July (1020.2mbar).
The month with the lowest atmospheric pressure is December (1012.1mbar).
Average wind speed in December
Ribeirão da Ilha, Brazil
- Average wind speed in December: 13.5km/h
The windiest month (with the highest average wind speed) is November (14.6km/h).
The calmest month (with the lowest average wind speed) is March (12.3km/h).
Average humidity in December
Ribeirão da Ilha, Brazil
- Average humidity in December: 82%
The months with the highest relative humidity are September and October (83%).
The month with the lowest relative humidity is April (80%).
Average rainfall in December
Ribeirão da Ilha, Brazil
- Average rainfall in December: 57mm
The wettest month (with the highest rainfall) is February (89mm).
The driest month (with the least rainfall) is November (47mm).
Average rainfall days in December
Ribeirão da Ilha, Brazil
- Average rainfall days in December: 16 days
The month with the highest number of rainy days is March (17.9 days).
The month with the least rainy days is June (10.8 days).
Average sea temperature in December
Ribeirão da Ilha, Brazil
- Average sea temperature in December: 24.1°C
The best months for swimming (with the highest average sea temperature) are January and February (25.8°C).
The coldest month (with the lowest average sea temperature) is July (18.6°C).
Average daylight in December /
Average sunshine in December
Ribeirão da Ilha, Brazil
- Average daylight in December: 13h and 5min
The month with the longest days is December (Average daylight: 13h and 54min).
The month with the shortest days is June (Average daylight: 10h and 24min).
- Average sunshine in December: 7h and 3min
The months with the most sunshine are February and April (Average sunshine: 7h and 48min).
The month with the least sunshine is October (Average sunshine: 6h and 42min).
Average sunshine days in December
Ribeirão da Ilha, Brazil
- Average sunshine days in December: 12.2 days
The month with the most sunshine days is June (16.8 days).
The month with the least sunshine days is March (10.1 days).
Average UV index in December
Ribeirão da Ilha, Brazil
- Average UV index in December: 6
The months with the highest UV index are January, February, March, April, November and December (UV index 6).
The months with the lowest UV index are May, June, July, August, September and October (UV index 5).
Average cloud cover in December
Ribeirão da Ilha, Brazil
- Average cloud cover in December: 49
The month with the most cloud cover is October (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 36).
Average visibility in December
Ribeirão da Ilha, Brazil
- Average visibility in December: 9km
The months with the highest visibility are March, April, May, June, July and November (10km).
The months with the lowest visibility are January, February, August, September, October and December (9km).
Ribeirão da Ilha, Brazil
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