December weather forecast
Rio Grande, Panama

December

Weather in December

December, the first month of the winter in Rio Grande, is also a moderately hot month, with temperature in the range of an average high of 29.4°C (84.9°F) and an average low of 22.3°C (72.1°F).

Temperature

The transition from November to December sees average high-temperatures adjusting to a still moderately hot 29.4°C (84.9°F), from a not significantly different 29.3°C (84.7°F). Rio Grande's nighttime temperature during December is consistently averaged at an agreeable 22.3°C (72.1°F).

Heat index

For most parts of December, the heat index is computed to be a fiery hot 36°C (96.8°F). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.
Given the heat index, its values are aligned with shaded sites and gentle winds. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', integrates the air's temperature and its humidity to showcase the felt temperature by people. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.
When temperatures rise, the human body turns to perspiration, using the cooling power of evaporating sweat. Higher relative humidity impedes evaporation, thus reducing heat dispersion from the body, culminating in a sensation of overheating. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.

Humidity

In Rio Grande, the average relative humidity in December is 82%.

Rainfall

In Rio Grande, during December, the rain falls for 18.4 days and regularly aggregates up to 55mm (2.17") of precipitation. In Rio Grande, Panama, during the entire year, the rain falls for 247.4 days and collects up to 1423mm (56.02") of precipitation.

Daylight

December has the shortest days of the year in Rio Grande, with an average of 11h and 36min of daylight.
On the first day of December, sunrise is at 06:21 and sunset at 18:01. On the last day of the month, sunrise is at 06:35 and sunset at 18:14 EST.

Sunshine

In Rio Grande, the average sunshine in December is 8.3h.

UV index

July through December, with an average maximum UV index of 6, are months with the lowest UV index in Rio Grande. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum daily UV index of 6 in December converts into the following recommendations:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.

Frequently asked questions

Is it hot in Rio Grande during December?
The average high-temperature and low-temperature during December are 29.4°C (84.9°F) and 22.3°C (72.1°F) respectively. The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in December is computed to be 36°C (96.8°F).
What is the average humidity in December in Rio Grande?
In Rio Grande, the average relative humidity in December is 82%.
How much does it rain in Rio Grande in December?
In December, the rain falls for 18.4 days. Throughout December, 55mm (2.17") of precipitation is accumulated.
What is the month with the shortest days in Rio Grande?
With an average of 11h and 36min of daylight, December has the shortest days of the year.
What is the average length of the day in December in Rio Grande?
In Rio Grande, Panama, the average day length in December is 11h and 38min.
When is the sunrise / sunset in December in Rio Grande?
In December, on the first day of the month, sunrise is at 06:21 and sunset at 18:01. On the last day of the month, in Rio Grande, Panama, sunrise is at 06:35 and sunset at 18:14 EST.
How many hours of sunshine does Rio Grande have in December?
The average sunshine duration in December is 8.3h.
What are the months with the lowest UV index in Rio Grande?
The months with the lowest UV index are July through December, with an average maximum UV index of 6.
What is the UV index intensity in December in Rio Grande?
In Rio Grande, the average daily maximum UV index in December is 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation.
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
Rio Grande, Panama
  • Average high temperature in December: 29.4°C

The warmest month (with the highest average high temperature) is April (32.3°C).
The months with the lowest average high temperature are October and November (29.3°C).

  • Average low temperature in December: 22.3°C

The month with the highest average low temperature is May (23.8°C).
The coldest months (with the lowest average low temperature) are January and December (22.3°C).

Average pressure in December
Rio Grande, Panama
  • Average pressure in December: 1010.1mbar

The months with the highest atmospheric pressure are January and March (1010.8mbar).
The month with the lowest atmospheric pressure is November (1009.8mbar).

Average wind speed in December
Rio Grande, Panama
  • Average wind speed in December: 11.4km/h

The windiest months (with the highest average wind speed) are February and March (15.1km/h).
The calmest month (with the lowest average wind speed) is September (5.3km/h).

Average humidity in December
Rio Grande, Panama
  • Average humidity in December: 82%

The month with the highest relative humidity is October (88%).
The month with the lowest relative humidity is March (72%).

Average rainfall in December
Rio Grande, Panama
  • Average rainfall in December: 55mm

The wettest month (with the highest rainfall) is August (228mm).
The driest month (with the least rainfall) is February (7mm).

Average rainfall days in December
Rio Grande, Panama
  • Average rainfall days in December: 18.4 days

The month with the highest number of rainy days is October (28.9 days).
The month with the least rainy days is February (6.1 days).

Average daylight in December /
Average sunshine in December
Rio Grande, Panama
  • Average daylight in December: 11h and 4min

The month with the longest days is June (Average daylight: 12h and 36min).
The month with the shortest days is December (Average daylight: 11h and 36min).

  • Average sunshine in December: 8h and 2min

The months with the most sunshine are January and February (Average sunshine: 9h and 12min).
The month with the least sunshine is November (Average sunshine: 5h and 42min).

Average sunshine days in December
Rio Grande, Panama
  • Average sunshine days in December: 8.6 days

The month with the most sunshine days is March (19 days).
The month with the least sunshine days is October (1.7 days).

Average UV index in December
Rio Grande, Panama
  • Average UV index in December: 6

The months with the highest UV index are January, February, March, April, May and June (UV index 7).
The months with the lowest UV index are July, August, September, October, November and December (UV index 6).

Average cloud cover in December
Rio Grande, Panama
  • Average cloud cover in December: 39

The month with the most cloud cover is October (Cloud cover 56).
The month with the least cloud cover is February (Cloud cover 27).

Average visibility in December
Rio Grande, Panama
  • Average visibility in December: 8km

The months with the highest visibility are February, March and April (10km).
The month with the lowest visibility is October (6km).

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