December weather forecast
Ubatuba, Brazil

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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.

Frequently asked questions

What is the temperature in December in Ubatuba?

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).

What is the average humidity in December in Ubatuba?

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

How much does it rain in Ubatuba in December?

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

What is the water temperature in December in Ubatuba?

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.

When are the longest days in Ubatuba?

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

What is the average length of the day in December in Ubatuba?

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

When are sunrise and sunset in December in Ubatuba?

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.

How many hours of sunshine does Ubatuba have in December?

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

What are the months with the highest UV index in Ubatuba?

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

What is the month with the lowest UV index in Ubatuba?

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

How high is the UV index in December in Ubatuba?

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.

Average temperature in December
Ubatuba, Brazil

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 - 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 - 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 - 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 - 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 - 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 - 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 / Average sunshine in December - Ubatuba, Brazil
  • Average daylight in December: 13h and 4min

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 5min

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 - 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 - 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).

Average cloud cover in December
Ubatuba, Brazil

Average cloud cover in December - Ubatuba, Brazil
  • Average cloud cover in December: 56

The month with the most cloud cover is November (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 34).

Average visibility in December
Ubatuba, Brazil

Average visibility in December - Ubatuba, Brazil
  • Average visibility in December: 7km

The months with the highest visibility are February, June, July, August and September (8km).
The month with the lowest visibility is April (6km).

Ubatuba, Brazil

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