Boa Vista
Brazil
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Boa Vista, Brazil

The first month of the winter, December, is still a tropical month in Boa Vista, Brazil, with average temperature fluctuating between 33°C (91.4°F) and 23°C (73.4°F).

Temperature

In Boa Vista, the average high-temperature in December remains equal as in November - a still tropical 33°C (91.4°F). In December, the average low-temperature is 23°C (73.4°F).

Rainfall

In Boa Vista, during 12 rainfall days, 36mm (1.4") of precipitation is typically accumulated. In Boa Vista, during the entire year, the rain falls for 184 days and collects up to 1639mm (64.5") of precipitation.

Daylight

Months with the shortest days in Boa Vista, Brazil, are January, February, November and December, with an average of 12h of daylight.

Sunshine

Months with the least sunshine are May through August and December, with an average of 7h of sunshine.

UV index

Months with the highest UV index are January through May, July through December, with an average maximum UV index of 12. A UV Index value of 11, and more, symbolizes an extreme threat to health from unsafe exposure to the UV radiation for ordinary individuals.
Note: The daily maximum UV index of 12 interpret into the following advice:
Practice all-important precautions. Light skin people may get burned in less than 5 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Even on cloudy days, a sunscreen with a minimum 30 sun protection factor should be generously applied and frequently re-applied, including after every swim or outdoor exercise.

What is the temperature in December in Boa Vista?

In Boa Vista, Brazil, in December, the average high-temperature is 33°C (91.4°F), and the average low-temperature is 23°C (73.4°F).

How much does it rain in Boa Vista in December?

In Boa Vista, Brazil, in December, during 12 rainfall days, 36mm (1.4") of precipitation is typically accumulated.

What is the month with the shortest days in Boa Vista?

Months with the shortest days in Boa Vista are January, February, November and December, with an average of 12h of daylight.

How many hours of daylight does Boa Vista have in December?

In Boa Vista, Brazil, the average length of the day in December is 12h.

What is the month with the least sunshine in Boa Vista?

May through August and December, with an average of 7h of sunshine, are months with the least sunshine.

How long on average sun shines in December in Boa Vista?

In Boa Vista, the average sunshine in December is 7h.

What are the months with the highest UV index in Boa Vista?

January through May, July through December, with an average maximum UV index of 12, are months with the highest UV index in Boa Vista.

How high is the UV index in December in Boa Vista?

The average daily maximum UV index in December in Boa Vista, Brazil, is 12. A UV Index of 11, and more, symbolizes an ultimate hazard to health from the exposure to the Sun's UV rays.
Average temperature in December - Boa Vista, Brazil
  • Average high temperature in December: 33°C

The warmest month (with the highest average high temperature) is October (34°C).
Months with the lowest average high temperature are June and July (30°C).

  • Average low temperature in December: 23°C

Months with the highest average low temperature are January, February, March, April, May, September, October, November and December (23°C).
Coldest months (with the lowest average low temperature) are June, July and August (22°C).

Average rainfall in December - Boa Vista, Brazil
  • Average rainfall in December: 36mm

The wettest month (with the highest rainfall) is June (347mm).
The driest month (with the lowest rainfall) is February (27mm).

Average rainfall days in December - Boa Vista, Brazil
  • Average rainfall days in December: 12 days

The month with the highest number of rainy days is June (28 days).
The month with the lowest number of rainy days is February (7 days).

Average daylight in December / Average sunshine in December - Boa Vista, Brazil
  • Average daylight in December: 12h

Months with the longest days are May, June and July (Average daylight: 12.3h).
Months with shortest days are January, February, November and December (Average daylight: 12h).

  • Average sunshine in December: 7h

Months with most sunshine are January, February, March, April, September, October and November (Average sunshine: 8h).
Months with least sunshine are May, June, July, August and December (Average sunshine: 7).

Average UV index in December - Boa Vista, Brazil
  • Average UV index in December: 12

Months with the highest UV index are January, February, March, April, May, July, August, September, October, November and December (UV index 12).
The month with the lowest UV index is June (UV index 11).