December weather forecast
Ondame, Guinea-Bissau

December

Weather in December

December in Ondame, Guinea-Bissau presents an amalgamation of dry season traits and colder winds, culminating the weather cycle. Whereas it’s reminiscent of November's weather, this month sees slightly lower temperatures. Highs hover around 34°C (93.2°F) while the lows plummet to 22.5°C (72.5°F). As the year winds down, the sun continues to shine, blessing citizens with abundant daylight hours. The scant rains from November also diminish further, offering a pleasant precursor to the New Year.

Temperature

An average high-temperature of a still tropical 34°C (93.2°F) marks December in Ondame, exhibiting a close resemblance to the conditions in November. Ondame's temperature tends to fall to an average low of 22.5°C (72.5°F) during the nights of December.

Humidity

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

Rainfall

December is the last month it rains. During 0.7 rainfall days, in December, Ondame aggregates 1mm (0.04") of precipitation. In Ondame, Guinea-Bissau, during the entire year, the rain falls for 107.5 days and collects up to 726mm (28.58") of precipitation.

Daylight

December has the shortest days of the year, with an average of 11h and 24min of daylight.
On the first day of December, sunrise is at 07:08 and sunset at 18:37. On the last day of the month, sunrise is at 07:23 and sunset at 18:50 GMT.

Sunshine

The average sunshine in December in Ondame is 9.7h.

UV index

The months with the highest UV index in Ondame are January through December, with an average maximum UV index of 7. The months with the lowest UV index in Ondame, Guinea-Bissau, are January through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the average person.
Note: In December, a regular UV index of 7 translates into these guidelines:
Take precautions against overexposure. Protection against sun damage is needed. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.

Frequently asked questions

How hot is it in Ondame in December?
In December, in Ondame, the average high-temperature is 34°C (93.2°F), and the average low-temperature is 22.5°C (72.5°F). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which represents the influence of relative humidity on air temperature, in November is appraised at 42°C (107.6°F).
What is the average humidity in December in Ondame?
In December, the average relative humidity is 37%.
What is the last month it rains in Ondame?
December is the last month it rains in Ondame. During 0.7 rainfall days, in December, Ondame aggregates 1mm (0.04") of precipitation.
What is the month with the shortest days in Ondame?
December has the shortest days of the year in Ondame, with an average of 11h and 24min of daylight.
What is the average length of the day in December in Ondame?
In Ondame, Guinea-Bissau, the average day length in December is 11h and 27min.
When is the sunrise / sunset in December in Ondame?
On the first day of December in Ondame, sunrise is at 07:08 and sunset at 18:37. On the last day of the month, sunrise is at 07:23 and sunset at 18:50 GMT.
How many hours of sunshine does Ondame have in December?
In December, the average sunshine duration in Ondame is 9.7h.
When is the highest UV index in Ondame?
The months with the highest UV index in Ondame are January through December, with an average maximum UV index of 7.
What are the months with the lowest UV index in Ondame?
January through December, with an average maximum UV index of 7, are months with the lowest UV index in Ondame.
How high is the UV index in December in Ondame?
In Ondame, the average daily maximum UV index in December is 7. A UV Index value of 6 to 7 symbolizes a high hazard to health 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 - Ondame, Guinea-Bissau
Average temperature in December
Ondame, 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 - Ondame, Guinea-Bissau
Average pressure in December
Ondame, 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 - Ondame, Guinea-Bissau
Average wind speed in December
Ondame, 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 - Ondame, Guinea-Bissau
Average humidity in December
Ondame, 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 - Ondame, Guinea-Bissau
Average rainfall in December
Ondame, 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 - Ondame, Guinea-Bissau
Average rainfall days in December
Ondame, 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 - Ondame, Guinea-Bissau
Average daylight in December /
Average sunshine in December
Ondame, Guinea-Bissau
  • Average daylight in December: 11h and 2min

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 24min).

  • 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 - Ondame, Guinea-Bissau
Average sunshine days in December
Ondame, 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 - Ondame, Guinea-Bissau
Average UV index in December
Ondame, 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 - Ondame, Guinea-Bissau
Average cloud cover in December
Ondame, 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 - Ondame, Guinea-Bissau
Average visibility in December
Ondame, 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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