Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
Toa Baja experiences a minor change to a still moderately hot 81°F (27.2°C) in average high-temperature during December, closely reflecting November. Toa Baja encounters an average temperature dip to a still moderately hot 75.2°F (24°C) throughout December, subtly lower than its daytime maximum.Heat index
During December, the heat index is computed to be a hot 86°F (30°C). Persisting in activity during long-term exposure might induce weariness, with subsequent heat cramps.Records show heat index calculations are tailored for shaded regions and mild winds. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are extremely significant for babies and toddlers. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.
Humidity
The average relative humidity in December in Toa Baja is 78%.Rainfall
In Toa Baja, in December, it is raining for 17.5 days, with typically 1.61" (41mm) of accumulated precipitation. In Toa Baja, Puerto Rico, during the entire year, the rain falls for 223.5 days and collects up to 27.95" (710mm) of precipitation.Daylight
With an average of 11h and 0min of daylight, December has the shortest days of the year in Toa Baja.On the first day of December, sunrise is at 6:41 am and sunset at 5:47 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 5:59 pm AST.
Sunshine
In Toa Baja, the average sunshine in December is 6.8h.UV index
The months with the lowest UV index in Toa Baja are January through April and December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The daily maximum UV index of 6 in December interprets into the following advice:
Guard against overexposure. Protection from sun-induced harm is essential. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Frequently asked questions
What is the usual temperature for Toa Baja in December?
What is the average humidity in December in Toa Baja?
How much does it rain in Toa Baja in December?
What is the month with the shortest days in Toa Baja?
How many hours of daylight does Toa Baja have in December?
What time are sunrise and sunset in December in Toa Baja?
How long on average sun shines in December in Toa Baja?
What is the month with the lowest UV index in Toa Baja?
What is the UV index reading in December in Toa Baja?
Average temperature in December
Toa Baja, PR
- Average high temperature in December: 81°F
The warmest month (with the highest average high temperature) is August (85.5°F).
The month with the lowest average high temperature is January (79.9°F).
- Average low temperature in December: 75.2°F
The months with the highest average low temperature are August, September and October (78.4°F).
The coldest month (with the lowest average low temperature) is March (73°F).
Average pressure in December
Toa Baja, PR
- Average pressure in December: 29.98"Hg
The months with the highest atmospheric pressure are January and February (30.02"Hg).
The month with the lowest atmospheric pressure is October (29.9"Hg).
Average wind speed in December
Toa Baja, PR
- Average wind speed in December: 9.3mph
The windiest month (with the highest average wind speed) is July (10mph).
The calmest month (with the lowest average wind speed) is October (6.8mph).
Average humidity in December
Toa Baja, PR
- Average humidity in December: 78%
The months with the highest relative humidity are May, June, July and November (79%).
The month with the lowest relative humidity is March (76%).
Average rainfall in December
Toa Baja, PR
- Average rainfall in December: 1.61"
The wettest month (with the highest rainfall) is October (3.82").
The driest month (with the least rainfall) is February (0.94").
Average rainfall days in December
Toa Baja, PR
- Average rainfall days in December: 17.5 days
The month with the highest number of rainy days is October (24 days).
The months with the least rainy days are January and February (14.2 days).
Average daylight in December /
Average sunshine in December
Toa Baja, PR
- Average daylight in December: 11h and 0min
The month with the longest days is June (Average daylight: 13h and 12min).
The month with the shortest days is December (Average daylight: 11h and 0min).
- Average sunshine in December: 6h and 5min
The months with the most sunshine are May and June (Average sunshine: 10h and 48min).
The month with the least sunshine is November (Average sunshine: 6h and 42min).
Average sunshine days in December
Toa Baja, PR
- Average sunshine days in December: 7.5 days
The month with the most sunshine days is January (9.8 days).
The months with the least sunshine days are October and November (3.5 days).
Average UV index in December
Toa Baja, PR
- Average UV index in December: 6
The months with the highest UV index are May, June, July, August, September, October and November (UV index 7).
The months with the lowest UV index are January, February, March, April and December (UV index 6).
Average cloud cover in December
Toa Baja, PR
- Average cloud cover in December: 33
The months with the most cloud cover are May, July and November (Cloud cover 34).
The month with the least cloud cover is September (Cloud cover 26).
Average visibility in December
Toa Baja, PR
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Toa Baja, Puerto Rico, USA
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