December weather forecastUbatuba, Brazil

December weather for Ubatuba, Brazil: In Ubatuba, Brazil, during December, the rain falls for 28.9 days and regularly aggregates up to 205mm (8.07") of precipitation. The month with the longest days in Ubatuba, Brazil, is December, with an average of 13h and 36min of daylight.

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Long-term

Year J F M A M J J A S O N December

December

Weather in December

December anchors Ubatuba firmly in its wet season, experiencing a peak in rainfall at 205mm (8.07"), analogous to January's deluge. This high rate of precipitation persists alongside accommodating temperatures, crafting a warm, wet and tropical feel. The rise in sea temperature invites water sports enthusiasts to indulge in aquatic activities, despite the rainfall. Further, above average daylight hours add to December's allure for outdoor interaction. Consistent wind speeds, marginally lower than the annual peak, push the clouds, bringing an end to a weather cycle teeming with tropical charms.

Temperature

With the advent of December, Ubatuba's high-temperatures adjust to a still warm 25.2°C (77.4°F), closely aligning with the preceding month. Ubatuba throughout December, experiences an average nighttime temperature of 18°C (64.4°F).

Humidity

In Ubatuba, the average relative humidity in December is 88%.

Rainfall

In Ubatuba, Brazil, during December, the rain falls for 28.9 days and regularly aggregates up to 205mm (8.07") of precipitation. In Ubatuba, during the entire year, the rain falls for 223.3 days and collects up to 1225mm (48.23") of precipitation.

Sea temperature

In Ubatuba, in December, the average water temperature is 24.8°C (76.6°F).
Note: If someone is sensitive to cold, the enjoyment of swimming in 24.8°C (76.6°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

December has the longest days of the year in Ubatuba, with an average of 13h and 36min of daylight.
On the first day of December, sunrise is at 05:05 and sunset at 18:33. On the last day of the month, sunrise is at 05:17 and sunset at 18:50 -03.

Sunshine

In December, the average sunshine is 6.9h.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 5. January through December, with an average maximum UV index of 5, are months with the lowest UV index. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.
Note: In December, the maximum UV index of 5 translates into these guidelines:
Put precautions into practice - Ensuring skin and eye safety is a necessity. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. To cut down UV radiation exposure by about half, sport a wide-brim hat. Attention! The reflection of both water and sand can increase the intensity of UV rays.

Updated: Feb 2, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

In December, in Ubatuba, the average high-temperature is 25.2°C (77.4°F), and the average low-temperature is 18°C (64.4°F).

In Ubatuba, the average relative humidity in December is 88%.

In Ubatuba, during December, the rain falls for 28.9 days and regularly aggregates up to 205mm (8.07") of precipitation.

In December, the average sea temperature is 24.8°C (76.6°F). Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 24.8°C (76.6°F) water may be enjoyable.

The month with the longest days in Ubatuba, Brazil, is December, with an average of 13h and 36min of daylight.

In December, the average day length in Ubatuba, Brazil, is 13h and 33min.

In December, on the first day of the month, sunrise is at 05:05 and sunset at 18:33. On the last day of the month, in Ubatuba, Brazil, sunrise is at 05:17 and sunset at 18:50 -03.

In Ubatuba, Brazil, the average sunshine duration in December is 6.9h.

The months with the highest UV index in Ubatuba are January through December, with an average maximum UV index of 5.

The months with the lowest UV index in Ubatuba, Brazil, are January through December, with an average maximum UV index of 5.

In December, the average daily maximum UV index in Ubatuba, Brazil, is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability from exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

23.9°C

25.2°C

25.8°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

7.9km/h

7.3km/h

6.6km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

26.2

28.9

27.3

Average sea temperature

Average daylight

Average sunshine

Average sunshine days

1.9

1.1

2.8

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Ubatuba, Brazil

Average high temperature in December: 25.2°C

The warmest month (with the highest average high temperature) is February (26.1°C).
The month with the lowest average high temperature is June (20.8°C).

Average low temperature in December: 18°C

The month with the highest average low temperature is January (18.3°C).
The coldest month (with the lowest average low temperature) is July (12.6°C).

Average pressure in December
Ubatuba, Brazil

Average pressure in December: 1012.2mbar

The month with the highest atmospheric pressure is July (1020.4mbar).
The month with the lowest atmospheric pressure is December (1012.2mbar).

Average wind speed in December
Ubatuba, Brazil

Average wind speed in December: 6.6km/h

The windiest month (with the highest average wind speed) is September (7.7km/h).
The calmest month (with the lowest average wind speed) is February (6km/h).

Average humidity in December
Ubatuba, Brazil

Average humidity in December: 88%

The months with the highest relative humidity are March and April (89%).
The months with the lowest relative humidity are August and September (79%).

Average rainfall in December
Ubatuba, Brazil

Average rainfall in December: 205mm

The wettest month (with the highest rainfall) is January (221mm).
The driest month (with the least rainfall) is June (27mm).

Average rainfall days in December
Ubatuba, Brazil

Average rainfall days in December: 28.9 days

The month with the highest number of rainy days is December (28.9 days).
The month with the least rainy days is June (10.1 days).

Average sea temperature in December
Ubatuba, Brazil

Average sea temperature in December: 24.8°C

The best month for swimming (with the highest average sea temperature) is March (26.5°C).
The coldest month (with the lowest average sea temperature) is September (21.3°C).

Average daylight in December /
Average sunshine in December
Ubatuba, Brazil

Average daylight in December: 13h and 36min

The month with the longest days is December (Average daylight: 13h and 36min).
The month with the shortest days is June (Average daylight: 10h and 42min).

Average sunshine in December: 6h and 54min

The month with the most sunshine is September (Average sunshine: 8h and 6min).
The month with the least sunshine is November (Average sunshine: 6h and 36min).

Average sunshine days in December
Ubatuba, Brazil

Average sunshine days in December: 1.1 days

The month with the most sunshine days is July (18.4 days).
The month with the least sunshine days is December (1.1 days).

Average UV index in December
Ubatuba, Brazil

Average UV index in December: 5

The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 5).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 5).