December weather forecastCatió, Guinea-Bissau
December
Weather in December
December is marked by a clear, pleasant climate in Catió, with minimal rainfall. The city is back to experiencing nominal humidity making for mainly dry conditions. There is an appreciable amount of sun for the longest hours, welcoming visitors in for various activities. Although the city experiences frequent sunshine, a slight dip in temperature indicates the onset of the cooler phase. The wind speed picks up a little, adding to the pleasantly cooled evenings and an appealing ambiance across the city.Temperature
Catió notes an average high-temperature of a still sweltering 35.9°C (96.6°F) in December, displaying minor variation from November. Catió in December observes a sharp transition from the daytime heat, falling to an average low of 20°C (68°F).Humidity
In Catió, the average relative humidity in December is 39%.Rainfall
In Catió, rain does not fall in January, February and December.Daylight
With an average of 11h and 30min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 07:04 and sunset at 18:35. On the last day of December, sunrise is at 07:19 and sunset at 18:48 GMT.
Sunshine
In Catió, the average sunshine in December is 9.6h.UV index
The months with the highest UV index are January through July, September through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the average person.Note: In December, the maximum UV index of 7 translates into these guidelines:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. 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. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Catió, Guinea-Bissau
- Average high temperature in December: 35.9°C
The warmest month (with the highest average high temperature) is March (40.2°C).
The month with the lowest average high temperature is August (29.9°C).
- Average low temperature in December: 20°C
The month with the highest average low temperature is June (25.1°C).
The coldest month (with the lowest average low temperature) is February (18.5°C).
Average pressure in December
Catió, Guinea-Bissau
- Average pressure in December: 1011.2mbar
The month with the highest atmospheric pressure is July (1013mbar).
The month with the lowest atmospheric pressure is April (1010mbar).
Average wind speed in December
Catió, Guinea-Bissau
- Average wind speed in December: 7.2km/h
The windiest month (with the highest average wind speed) is May (9.4km/h).
The calmest month (with the lowest average wind speed) is October (5.7km/h).
Average humidity in December
Catió, Guinea-Bissau
- Average humidity in December: 39%
The months with the highest relative humidity are August and September (85%).
The month with the lowest relative humidity is January (32%).
Average rainfall in December
Catió, Guinea-Bissau
- Average rainfall in December: 0mm
The wettest month (with the highest rainfall) is August (286mm).
The driest months (with the least rainfall) are January, February and December (0mm).
Average rainfall days in December
Catió, Guinea-Bissau
- Average rainfall days in December: 0.2 days
The month with the highest number of rainy days is August (25.7 days).
The months with the least rainy days are January and February (0 days).
Average daylight in December /
Average sunshine in December
Catió, Guinea-Bissau
- Average daylight in December: 11h and 30min
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 36min
The month with the most sunshine is March (Average sunshine: 10h and 0min).
The month with the least sunshine is August (Average sunshine: 5h and 6min).
Average sunshine days in December
Catió, Guinea-Bissau
- Average sunshine days in December: 30.7 days
The month with the most sunshine days is January (30.9 days).
The month with the least sunshine days is August (4 days).
Average UV index in December
Catió, Guinea-Bissau
- Average UV index in December: 7
The months with the highest UV index are January, February, March, April, May, June, July, September, October, November and December (UV index 7).
The month with the lowest UV index is August (UV index 6).
Average cloud cover in December
Catió, Guinea-Bissau
- Average cloud cover in December: 13
The month with the most cloud cover is August (Cloud cover 65).
The month with the least cloud cover is March (Cloud cover 7).
Average visibility in December
Catió, Guinea-Bissau
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, November and December (10km).
The months with the lowest visibility are August and September (8km).





