December weather forecast
São Félix do Tocantins, Brazil

December

Weather in December

The first month of the summer, December, is still a tropical month in São Félix do Tocantins, Brazil, with an average temperature fluctuating between 31.3°C (88.3°F) and 22.2°C (72°F).

Temperature

São Félix do Tocantins's average high-temperature in December is a still hot 31.3°C (88.3°F), indicating a subtle variation from November. The temperature dips to an average of 22.2°C (72°F) during December nights.

Heat index

December's mean heat index is computed to be a scorching 41°C (105.8°F). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.
Factoring in the heat index, values are geared towards shaded areas with light breezes. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', offers an insight into how hot it feels when we factor in moisture content. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
Sweat evaporation, driven by perspiration, is the method the human body uses to rid itself of excessive warmth. When the air holds a significant amount of moisture, the efficiency of the evaporation process is decreased, preventing the body from cooling down efficiently, leading to the sensation of overheating. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

In São Félix do Tocantins, Brazil, the average relative humidity in December is 78%.

Rainfall

In São Félix do Tocantins, Brazil, during December, the rain falls for 25.8 days and regularly aggregates up to 129mm (5.08") of precipitation. In São Félix do Tocantins, during the entire year, the rain falls for 198 days and collects up to 907mm (35.71") of precipitation.

Daylight

The month with the longest days in São Félix do Tocantins is December, with an average of 12h and 42min of daylight.
On the first day of the month, sunrise is at 05:35 and sunset at 18:16. On the last day of December, in São Félix do Tocantins, sunrise is at 05:48 and sunset at 18:31 -03.

Sunshine

In São Félix do Tocantins, the average sunshine in December is 9.3h.

UV index

February through May and December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum UV index, 6 during December, leads to the following recommendations:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.

Frequently asked questions

Is it hot in São Félix do Tocantins during December?
The average high-temperature and low-temperature during December are 31.3°C (88.3°F) and 22.2°C (72°F) respectively. The average heat index (a.k.a. 'real feel', 'feels like'), which represents the influence of relative humidity on air temperature, in December is computed to be 41°C (105.8°F).
What is the average humidity in December in São Félix do Tocantins?
In December, the average relative humidity in São Félix do Tocantins, Brazil, is 78%.
How many days does it rain in December in São Félix do Tocantins?
In São Félix do Tocantins, in December, during 25.8 rainfall days, 129mm (5.08") of precipitation is typically accumulated.
When are the longest days in São Félix do Tocantins?
December has the longest days of the year in São Félix do Tocantins, Brazil, with an average of 12h and 42min of daylight.
How many hours of daylight does São Félix do Tocantins have in December?
In December, the average day length in São Félix do Tocantins, Brazil, is 12h and 43min.
When are sunrise and sunset in December in São Félix do Tocantins?
In December, on the first day of the month, sunrise is at 05:35 and sunset at 18:16. On the last day of the month, in São Félix do Tocantins, sunrise is at 05:48 and sunset at 18:31 -03.
How long on average sun shines in December in São Félix do Tocantins?
The average sunshine duration in December in São Félix do Tocantins, Brazil, is 9.3h.
What are the months with the lowest UV index in São Félix do Tocantins?
The months with the lowest UV index in São Félix do Tocantins, Brazil, are February through May and December, with an average maximum UV index of 6.
What is the UV index intensity in December in São Félix do Tocantins?
In December, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high hazard to health from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December - São Félix do Tocantins, Brazil
Average temperature in December
São Félix do Tocantins, Brazil
  • Average high temperature in December: 31.3°C

The warmest month (with the highest average high temperature) is September (37.5°C).
The months with the lowest average high temperature are February, March and April (30.3°C).

  • Average low temperature in December: 22.2°C

The month with the highest average low temperature is September (24.7°C).
The coldest month (with the lowest average low temperature) is July (20.3°C).

Average pressure in December - São Félix do Tocantins, Brazil
Average pressure in December
São Félix do Tocantins, Brazil
  • Average pressure in December: 1010mbar

The months with the highest atmospheric pressure are June and July (1014.1mbar).
The month with the lowest atmospheric pressure is November (1009.4mbar).

Average wind speed in December - São Félix do Tocantins, Brazil
Average wind speed in December
São Félix do Tocantins, Brazil
  • Average wind speed in December: 5.3km/h

The windiest months (with the highest average wind speed) are August and September (7.7km/h).
The calmest month (with the lowest average wind speed) is March (4.4km/h).

Average humidity in December - São Félix do Tocantins, Brazil
Average humidity in December
São Félix do Tocantins, Brazil
  • Average humidity in December: 78%

The month with the highest relative humidity is March (85%).
The month with the lowest relative humidity is September (34%).

Average rainfall in December - São Félix do Tocantins, Brazil
Average rainfall in December
São Félix do Tocantins, Brazil
  • Average rainfall in December: 129mm

The wettest month (with the highest rainfall) is March (147mm).
The driest month (with the least rainfall) is July (0mm).

Average rainfall days in December - São Félix do Tocantins, Brazil
Average rainfall days in December
São Félix do Tocantins, Brazil
  • Average rainfall days in December: 25.8 days

The month with the highest number of rainy days is March (28.3 days).
The months with the least rainy days are July and August (0.6 days).

Average daylight in December / Average sunshine in December - São Félix do Tocantins, Brazil
Average daylight in December /
Average sunshine in December
São Félix do Tocantins, Brazil
  • Average daylight in December: 12h and 4min

The month with the longest days is December (Average daylight: 12h and 42min).
The month with the shortest days is June (Average daylight: 11h and 30min).

  • Average sunshine in December: 9h and 2min

The month with the most sunshine is October (Average sunshine: 10h and 48min).
The month with the least sunshine is May (Average sunshine: 7h and 18min).

Average sunshine days in December - São Félix do Tocantins, Brazil
Average sunshine days in December
São Félix do Tocantins, Brazil
  • Average sunshine days in December: 4.3 days

The month with the most sunshine days is July (30.4 days).
The month with the least sunshine days is March (1.6 days).

Average UV index in December - São Félix do Tocantins, Brazil
Average UV index in December
São Félix do Tocantins, Brazil
  • Average UV index in December: 6

The months with the highest UV index are August and September (UV index 8).
The months with the lowest UV index are February, March, April, May and December (UV index 6).

Average cloud cover in December - São Félix do Tocantins, Brazil
Average cloud cover in December
São Félix do Tocantins, Brazil
  • Average cloud cover in December: 45

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 12).

Average visibility in December - São Félix do Tocantins, Brazil
Average visibility in December
São Félix do Tocantins, Brazil
  • Average visibility in December: 8km

The months with the highest visibility are June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, April and December (8km).

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