December weather forecastRibaue, Mozambique

Weather in December

The first month of the summer, December, is still a hot month in Ribaue, Mozambique, with temperature in the range of an average high of 32.5°C (90.5°F) and an average low of 22°C (71.6°F).

Temperature

December's weather records an average high-temperature of a still tropical 32.5°C (90.5°F), showing little deviation from November. In Ribaue, an average low-temperature of 22°C (71.6°F) is recorded during December nights.

Heat index

The heat index value for December is evaluated at an extremely hot 44°C (111.2°F). Keep on guard: Heat exhaustion and heat cramps are probable. Heatstroke is a possible danger with ongoing physical activity.
Be aware that heat index ratings are designed for shaded locations and minor breezes. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', measures the perceived warmth when incorporating the humidity present in the air. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
The body's self-cooling mechanism is rooted in perspiration, where evaporating sweat cools down excessive warmth. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.

Humidity

The average relative humidity in December is 75%.

Rainfall

In Ribaue, during December, the rain falls for 23.3 days and regularly aggregates up to 144mm (5.67") of precipitation. Throughout the year, there are 184.5 rainfall days, and 799mm (31.46") of precipitation is accumulated.

Daylight

With an average of 13h and 0min of daylight, December has the longest days of the year.
On the first day of the month, sunrise is at 04:47 and sunset at 17:44. On the last day of December, sunrise is at 04:59 and sunset at 17:59 CAT.

Sunshine

The average sunshine in December is 8.3h.

UV index

The months with the highest UV index are September through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the ordinary person.
Note: In December, the maximum UV index of 7 suggests this advice:
Resist extreme sun exposure. Guarding against solar damage is essential. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.