December weather forecast
Guarumal, Panama

December

Weather in December

The first month of the winter, December, is also a moderately hot month in Guarumal, Panama, with an average temperature fluctuating between 22°C (71.6°F) and 28.8°C (83.8°F).

Temperature

December's weather records an average high-temperature of a still warm 28.8°C (83.8°F), showing little deviation from November. An average low-temperature of 22°C (71.6°F) marks the month of December.

Heat index

December's mean heat index is calculated to be a hot 33°C (91.4°F). Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.
The metrics for the heat index are tailored for both shady environments and light winds. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', melds the effects of warmth and moisture to generate a feeling of heat. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.

Humidity

The average relative humidity in December is 75%.

Rainfall

In Guarumal, Panama, in December, during 16.9 rainfall days, 51mm (2.01") of precipitation is typically accumulated. Throughout the year, there are 265.2 rainfall days, and 1776mm (69.92") of precipitation is accumulated.

Daylight

With an average of 11h and 36min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 06:29 and sunset at 18:09. On the last day of December, sunrise is at 06:44 and sunset at 18:23 EST.

Sunshine

In Guarumal, the average sunshine in December is 9.3h.

UV index

May, August, October through December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: The UV index of 6 during December translates into the following guidance:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.

Frequently asked questions

How hot is December?
In Guarumal, in December, the average high-temperature is 28.8°C (83.8°F), and the average low-temperature is 22°C (71.6°F). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in December is calculated to be 33°C (91.4°F).
What is the average humidity in December?
The average relative humidity in December is 75%.
How much does it rain in December?
In Guarumal, during December, the rain falls for 16.9 days and regularly aggregates up to 51mm (2.01") of precipitation.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 11h and 36min of daylight.
How many hours of daylight does Guarumal have in December?
In Guarumal, Panama, the average day length in December is 11h and 39min.
When is the sunrise / sunset in December?
In December, on the first day of the month, sunrise is at 06:29 and sunset at 18:09. On the last day of the month, sunrise is at 06:44 and sunset at 18:23 EST.
How many hours of sunshine does Guarumal have in December?
In December, the average sunshine duration is 9.3h.
What are the months with the lowest UV index?
The months with the lowest UV index are May, August, October through December, with an average maximum UV index of 6.
How high is the UV index in December?
The average daily maximum UV index in December is 6. A UV Index reading of 6 to 7 represents a high hazard to health from unsafe 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 - Guarumal, Panama
Average temperature in December
Guarumal, Panama
  • Average high temperature in December: 28.8°C

The warmest months (with the highest average high temperature) are March and April (31.9°C).
The month with the lowest average high temperature is October (27.6°C).

  • Average low temperature in December: 22°C

The month with the highest average low temperature is May (23.7°C).
The coldest months (with the lowest average low temperature) are January and December (22°C).

Average pressure in December - Guarumal, Panama
Average pressure in December
Guarumal, Panama
  • Average pressure in December: 1010.9mbar

The month with the highest atmospheric pressure is January (1011.4mbar).
The month with the lowest atmospheric pressure is November (1010.5mbar).

Average wind speed in December - Guarumal, Panama
Average wind speed in December
Guarumal, Panama
  • Average wind speed in December: 7.9km/h

The windiest month (with the highest average wind speed) is February (11.1km/h).
The calmest month (with the lowest average wind speed) is July (6.3km/h).

Average humidity in December - Guarumal, Panama
Average humidity in December
Guarumal, Panama
  • Average humidity in December: 75%

The month with the highest relative humidity is October (84%).
The month with the lowest relative humidity is March (63%).

Average rainfall in December - Guarumal, Panama
Average rainfall in December
Guarumal, Panama
  • Average rainfall in December: 51mm

The wettest month (with the highest rainfall) is October (303mm).
The driest month (with the least rainfall) is February (12mm).

Average rainfall days in December - Guarumal, Panama
Average rainfall days in December
Guarumal, Panama
  • Average rainfall days in December: 16.9 days

The month with the highest number of rainy days is October (30.4 days).
The month with the least rainy days is February (7.1 days).

Average daylight in December / Average sunshine in December - Guarumal, Panama
Average daylight in December /
Average sunshine in December
Guarumal, 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: 9h and 2min

The month with the most sunshine is February (Average sunshine: 9h and 48min).
The month with the least sunshine is October (Average sunshine: 7h and 30min).

Average sunshine days in December - Guarumal, Panama
Average sunshine days in December
Guarumal, Panama
  • Average sunshine days in December: 8.4 days

The month with the most sunshine days is January (18.8 days).
The month with the least sunshine days is October (0.2 days).

Average UV index in December - Guarumal, Panama
Average UV index in December
Guarumal, Panama
  • Average UV index in December: 6

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

Average cloud cover in December - Guarumal, Panama
Average cloud cover in December
Guarumal, Panama
  • Average cloud cover in December: 24

The month with the most cloud cover is October (Cloud cover 45).
The month with the least cloud cover is February (Cloud cover 13).

Average visibility in December - Guarumal, Panama
Average visibility in December
Guarumal, Panama
  • Average visibility in December: 10km

The months with the highest visibility are January, February, March, April and December (10km).
The months with the lowest visibility are May, June, July, August, September, October and November (9km).

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