December weather forecast
Bruce, Guinea-Bissau

December

Weather in December

The first month of the winter, December, is also a hot month in Bruce, Guinea-Bissau, with an average temperature varying between 34°C (93.2°F) and 22.5°C (72.5°F).

Temperature

December's arrival brings an average high-temperature of a still tropical 34°C (93.2°F), demonstrating subtle variation from the preceding month. Throughout the month of December, Bruce expects an average low of 22.5°C (72.5°F).

Humidity

In December, the average relative humidity in Bruce is 37%.

Rainfall

December is the last month it rains in Bruce. During 0.7 rainfall days, in December, Bruce aggregates 1mm (0.04") of precipitation. Throughout the year, there are 107.5 rainfall days, and 726mm (28.58") of precipitation is accumulated.

Daylight

December has the shortest days of the year, with an average of 11h and 30min of daylight.
On the first day of December in Bruce, sunrise is at 07:08 and sunset at 18:39. On the last day of the month, sunrise is at 07:23 and sunset at 18:52 GMT.

Sunshine

In December, the average sunshine is 9.7h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: In December, a daily maximum UV index of 7 leads to the following instructions:
Fend off overexposure. Sun protection is vital. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. To cut down UV radiation exposure by about half, sport a wide-brim hat.

Frequently asked questions

How hot does it get in Bruce in December?
The high-temperature in Bruce, Guinea-Bissau, during December is 34°C (93.2°F) and the low-temperature is 22.5°C (72.5°F). In November, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines relative humidity and air temperature, is calculated to be 42°C (107.6°F).
What is the average humidity in December in Bruce?
In December, the average relative humidity in Bruce, Guinea-Bissau, is 37%.
What is the last month it rains in Bruce?
December is the last month it rains. During 0.7 rainfall days, in December, Bruce aggregates 1mm (0.04") of precipitation.
What is the month with the shortest days in Bruce?
With an average of 11h and 30min of daylight, December has the shortest days of the year in Bruce, Guinea-Bissau.
How many hours of daylight does Bruce have in December?
The average day length in December in Bruce, Guinea-Bissau, is 11h and 29min.
When are sunrise and sunset in December in Bruce?
On the first day of December in Bruce, Guinea-Bissau, sunrise is at 07:08 and sunset at 18:39. On the last day of the month, sunrise is at 07:23 and sunset at 18:52 GMT.
How many hours of sunshine does Bruce have in December?
In December, the average sunshine duration is 9.7h.
When is the highest UV index in Bruce?
January through December, with an average maximum UV index of 7, are months with the highest UV index in Bruce.
What are the months with the lowest UV index in Bruce?
January through December, with an average maximum UV index of 7, are months with the lowest UV index in Bruce.
How high is the UV index in December in Bruce?
In December, the average daily maximum UV index is 7. A UV Index of 6 to 7 symbolizes a high health threat 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
Bruce, Guinea-Bissau
  • Average high temperature in December: 34°C

The warmest month (with the highest average high temperature) is March (35.5°C).
The month with the lowest average high temperature is August (29.6°C).

  • Average low temperature in December: 22.5°C

The month with the highest average low temperature is June (26°C).
The coldest month (with the lowest average low temperature) is January (21.8°C).

Average pressure in December
Bruce, Guinea-Bissau
  • Average pressure in December: 1011.2mbar

The month with the highest atmospheric pressure is July (1012.9mbar).
The months with the lowest atmospheric pressure are March and April (1010.1mbar).

Average wind speed in December
Bruce, Guinea-Bissau
  • Average wind speed in December: 10.6km/h

The windiest month (with the highest average wind speed) is June (13.2km/h).
The calmest months (with the lowest average wind speed) are October and November (9km/h).

Average humidity in December
Bruce, Guinea-Bissau
  • Average humidity in December: 37%

The month with the highest relative humidity is August (82%).
The month with the lowest relative humidity is January (32%).

Average rainfall in December
Bruce, Guinea-Bissau
  • Average rainfall in December: 1mm

The wettest month (with the highest rainfall) is August (270mm).
The driest months (with the least rainfall) are January and February (0mm).

Average rainfall days in December
Bruce, Guinea-Bissau
  • Average rainfall days in December: 0.7 days

The month with the highest number of rainy days is August (26.9 days).
The month with the least rainy days is January (0.3 days).

Average daylight in December /
Average sunshine in December
Bruce, Guinea-Bissau
  • Average daylight in December: 11h and 3min

The month with the longest days is June (Average daylight: 12h and 48min).
The month with the shortest days is December (Average daylight: 11h and 30min).

  • Average sunshine in December: 9h and 4min

The months with the most sunshine are March, April and May (Average sunshine: 9h and 54min).
The month with the least sunshine is August (Average sunshine: 6h and 6min).

Average sunshine days in December
Bruce, Guinea-Bissau
  • Average sunshine days in December: 29.8 days

The month with the most sunshine days is January (30.7 days).
The month with the least sunshine days is August (2.9 days).

Average UV index in December
Bruce, Guinea-Bissau
  • Average UV index in December: 7

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

Average cloud cover in December
Bruce, Guinea-Bissau
  • Average cloud cover in December: 12

The month with the most cloud cover is August (Cloud cover 57).
The months with the least cloud cover are March and April (Cloud cover 7).

Average visibility in December
Bruce, Guinea-Bissau
  • Average visibility in December: 10km

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

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