December weather forecastCacheu, Guinea-Bissau
December
Weather in December
Ending the year on a dry note, December sees no rainfall, making it one of the driest months for Cacheu. Conditions mirror those observed in January, with a similar temperature range, average sea temperature, and humidity level. A significantly dry climate encapsulates the city, given the sharp decrease in rainfall from November. The month is characterized by amply clear skies, high temperatures, and prolonged sunshine hours. The shift to predominant visibility signifies the full commencement of the dry season in Cacheu.Temperature
Cacheu's shift from November to December is accompanied by an average high-temperature of a still very hot 35.2°C (95.4°F), a slight deviation from 35.1°C (95.2°F). Cacheu anticipates a considerable drop in temperature at night in December, with an average low of 21.8°C (71.2°F).Humidity
The average relative humidity in December in Cacheu is 33%.Rainfall
In Cacheu, Guinea-Bissau, rain does not fall in January, February and December.Sea temperature
In Cacheu, the average seawater temperature in December is 26.5°C (79.7°F).Note: For engaging in water activities including swimming and diving, temperatures from 25°C (77°F) to 29°C (84.2°F) are perceived as perfect, providing pleasure for extended durations.
Daylight
The month with the shortest days is December, with an average of 11h and 24min of daylight.On the first day of the month, sunrise is at 07:10 and sunset at 18:37. On the last day of December, sunrise is at 07:25 and sunset at 18:50 GMT.
Sunshine
In Cacheu, the average sunshine in December is 9.7h.UV index
The months with the highest UV index are January through June, September through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 7 in December converts into the following recommendations:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Cacheu, Guinea-Bissau
- Average high temperature in December: 35.2°C
The warmest month (with the highest average high temperature) is March (37.1°C).
The month with the lowest average high temperature is August (29.8°C).
- Average low temperature in December: 21.8°C
The month with the highest average low temperature is June (25.7°C).
The coldest month (with the lowest average low temperature) is January (21.2°C).
Average pressure in December
Cacheu, Guinea-Bissau
- Average pressure in December: 1011.3mbar
The month with the highest atmospheric pressure is July (1012.9mbar).
The month with the lowest atmospheric pressure is April (1010.2mbar).
Average wind speed in December
Cacheu, Guinea-Bissau
- Average wind speed in December: 10.6km/h
The windiest month (with the highest average wind speed) is June (12.8km/h).
The calmest month (with the lowest average wind speed) is October (8.6km/h).
Average humidity in December
Cacheu, Guinea-Bissau
- Average humidity in December: 33%
The month with the highest relative humidity is August (81%).
The month with the lowest relative humidity is January (26%).
Average rainfall in December
Cacheu, Guinea-Bissau
- Average rainfall in December: 0mm
The wettest month (with the highest rainfall) is August (254mm).
The driest months (with the least rainfall) are January, February and December (0mm).
Average rainfall days in December
Cacheu, Guinea-Bissau
- Average rainfall days in December: 0.4 days
The month with the highest number of rainy days is August (27.1 days).
The month with the least rainy days is January (0.1 days).
Average sea temperature in December
Cacheu, Guinea-Bissau
- Average sea temperature in December: 26.5°C
The best month for swimming (with the highest average sea temperature) is October (28.9°C).
The coldest month (with the lowest average sea temperature) is February (23.3°C).
Average daylight in December /
Average sunshine in December
Cacheu, 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 and April (Average sunshine: 9h and 54min).
The month with the least sunshine is August (Average sunshine: 5h and 42min).
Average sunshine days in December
Cacheu, Guinea-Bissau
- Average sunshine days in December: 30.5 days
The month with the most sunshine days is January (30.7 days).
The month with the least sunshine days is August (3.3 days).
Average UV index in December
Cacheu, Guinea-Bissau
- Average UV index in December: 7
The months with the highest UV index are January, February, March, April, May, June, September, October, November and December (UV index 7).
The months with the lowest UV index are July and August (UV index 6).
Average cloud cover in December
Cacheu, Guinea-Bissau
- Average cloud cover in December: 12
The month with the most cloud cover is August (Cloud cover 58).
The months with the least cloud cover are March and April (Cloud cover 7).
Average visibility in December
Cacheu, Guinea-Bissau
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, October, November and December (10km).
The months with the lowest visibility are July, August and September (9km).
