December weather forecast and climate
Riberalta, Bolivia

Weather in December

December, the first month of the summer, in Riberalta, is still a tropical month, with average temperature fluctuating between 30.7°C (87.3°F) and 22.6°C (72.7°F).

Temperature

In December, the average high-temperature is essentially the same as in November - a still hot 30.7°C (87.3°F). In Riberalta, the average low-temperature is 22.6°C (72.7°F).

Heat index

In December, the average heat index is appraised at a blistering 41.6°C (106.9°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'felt air temperature', 'apparent temperature', or 'feels like', is a measure of how hot it feels when the actual air humidity is factored in. Additional factors like activity, wind, metabolic differences, and pregnancy affect individual temperature impact. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 37.5°C (99.5°F) to 38.3°C (100.9°F), thermal conditions are potentially life-threatening.

Humidity

In Riberalta, Bolivia, the average relative humidity is 85%.

Rainfall

In Riberalta, Bolivia, in December, it is raining for 27.8 days, with typically 167mm (6.57") of accumulated precipitation. In Riberalta, during the entire year, the rain falls for 224 days and collects up to 1199mm (47.2") of precipitation.

Daylight

The month with the longest days in Riberalta, Bolivia, is December, with an average of 12.8h of daylight.

Sunshine

The average sunshine in Riberalta is 7h.

UV index

Months with the lowest UV index in Riberalta are January through June and December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to the UV radiation for the ordinary person.
Note: In December, the average maximum UV index of 6 translate into the following recommendations:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the temperature in December in Riberalta?

In Riberalta, Bolivia, in December, the average high-temperature is 30.7°C (87.3°F), and the average low-temperature is 22.6°C (72.7°F). In December, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is appraised at 41.6°C (106.9°F).

What is the average humidity in December in Riberalta?

The average relative humidity in December in Riberalta is 85%.

How many days does it rain in December in Riberalta?

In Riberalta, Bolivia, in December, during 27.8 rainfall days, 167mm (6.57") of precipitation is typically accumulated.

When are the longest days in Riberalta?

The month with the longest days in Riberalta, Bolivia, is December, with an average of 12.8h of daylight.

How many hours of daylight does Riberalta have in December?

In December, the average length of the day is 12.8h.

How many hours of sunshine does Riberalta have in December?

In Riberalta, the average sunshine in December is 7h.

What is the month with the lowest UV index in Riberalta?

Months with the lowest UV index in Riberalta are January through June and December, with an average maximum UV index of 6.

What is the UV index reading in December in Riberalta?

In Riberalta, the average daily maximum UV index in December is 6. A UV Index of 6 to 7 symbolizes a high hazard to health from the exposure to the Sun's UV rays.

Average temperature in December
Riberalta, Bolivia

Average temperature in December - Riberalta, Bolivia
  • Average high temperature in December: 30.7°C

The warmest month (with the highest average high temperature) is September (35.8°C).
The month with the lowest average high temperature is February (29.3°C).

  • Average low temperature in December: 22.6°C

The month with the highest average low temperature is October (22.9°C).
The coldest month (with the lowest average low temperature) is July (19.3°C).

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Average pressure in December
Riberalta, Bolivia

Average pressure in December - Riberalta, Bolivia
  • Average pressure in December: 1009.2mbar

Months with the highest atmospheric pressure are June and July (1013.7mbar).
The month with the lowest atmospheric pressure is November (1008.4mbar).

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Average wind speed in December
Riberalta, Bolivia

Average wind speed in December - Riberalta, Bolivia
  • Average wind speed in December: 4.9km/h

The windiest months (with the highest average wind speed) are August, September and December (4.9km/h).
The calmest months (with the lowest average wind speed) are March, April and May (4.2km/h).

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Average humidity in December
Riberalta, Bolivia

Average humidity in December - Riberalta, Bolivia
  • Average humidity in December: 85%

The month with the highest relative humidity is February (91%).
The month with the lowest relative humidity is August (52%).

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Average rainfall in December
Riberalta, Bolivia

Average rainfall in December - Riberalta, Bolivia
  • Average rainfall in December: 167mm

The wettest month (with the highest rainfall) is February (196mm).
The driest month (with the least rainfall) is July (8mm).

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Average rainfall days in December
Riberalta, Bolivia

Average rainfall days in December - Riberalta, Bolivia
  • Average rainfall days in December: 27.8 days

The month with the highest number of rainy days is January (28.5 days).
The month with the least rainy days is July (4.4 days).

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Average daylight in December /
Average sunshine in December
Riberalta, Bolivia

Average daylight in December / Average sunshine in December - Riberalta, Bolivia
  • Average daylight in December: 12.8h

The month with the longest days is December (Average daylight: 12.8h).
Months with the shortest days are June and July (Average daylight: 11.5h).

  • Average sunshine in December: 7h

The month with the most sunshine is August (Average sunshine: 9.6h).
The month with the least sunshine is February (Average sunshine: 4.9h).

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Average sunshine days in December
Riberalta, Bolivia

Average sunshine days in December - Riberalta, Bolivia
  • Average sunshine days in December: 2.4 days

The month with the most sunshine days is July (25.9 days).
The month with the least sunshine days is February (0.8 days).

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Average UV index in December
Riberalta, Bolivia

Average UV index in December - Riberalta, Bolivia
  • Average UV index in December: 6

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

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Average cloud cover in December
Riberalta, Bolivia

Average cloud cover in December - Riberalta, Bolivia
  • Average cloud cover in December: 63

The month with the most cloud cover is February (Cloud cover 74).
The month with the least cloud cover is August (Cloud cover 19).

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Average visibility in December
Riberalta, Bolivia

Average visibility in December - Riberalta, Bolivia
  • Average visibility in December: 7km

Months with the highest visibility are August and September (10km).
The month with the lowest visibility is February (5km).

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