December weather forecastBula, Guinea-Bissau
December
Weather in December
The year wraps up in Bula with an unequivocally dry December, recording the lowest rainfall of 1mm (0.04"). The maximum temperature holds at a steady 34°C (93.2°F), similar to that seen in November. Daylight hours shrink to 11.4 hours, implying shorter yet bright and sunny days. The winds become brisk once again, gusting up to a notable 17.7km/h (11mph), making December distinct from its preceding months. Despite the gusts, the weather remains considerably calm and clear, ending the year on a serene note.Temperature
Bula experiences a minor change to a still hot 34°C (93.2°F) in average high-temperature during December, closely reflecting November. An average minimum temperature of 22.5°C (72.5°F) marks the month of December.Humidity
In December, the average relative humidity in Bula is 37%.Rainfall
December is the last month it rains in Bula. During 0.7 rainfall days, in December, Bula aggregates 1mm (0.04") of precipitation. Throughout the year, there are 107.5 rainfall days, and 726mm (28.58") of precipitation is accumulated.Daylight
With an average of 11h and 24min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 07:08 and sunset at 18:36. On the last day of December, sunrise is at 07:23 and sunset at 18:48 GMT.
Sunshine
In Bula, the average sunshine in December is 9.7h.UV index
The months with the highest UV index in Bula are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index in Bula. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for ordinary individuals.Note: A daily maximum UV index of 7 in December translates into the following instructions:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Bula, 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
Bula, 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
Bula, 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
Bula, 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
Bula, 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
Bula, 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
Bula, Guinea-Bissau
- Average daylight in December: 11h and 24min
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 42min
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
Bula, 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
Bula, 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
Bula, 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
Bula, 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).





