December weather forecast
Bombaim, São Tomé and Príncipe

Closing the year, December continues the trend of falling temperatures with a low of 26.6°C (79.9°F). Less rainfall and fewer rainy days suggest the onset of drier months. Despite being the close of the year, the weather in Bombaim seems to gear up for the next cycle of seasons with anticipation. The reduced wind speeds add a sense of tranquility to the naturally lush cityscapes. The changing weather combined with long hours of sunlight sets the tone for the festivities and the joyous celebrations to come.

Temperature

The average high-temperature in Bombaim during December registers at a still warm 27.5°C (81.5°F), closely corresponding to the preceding month. Bombaim encounters a small divergence from daytime high temperatures, averaging a low-temperature of 26.6°C (79.9°F) during December nights.

Heat index

December's average heat index is calculated to be a hot 31°C (87.8°F). If one continues to be active during enduring exposure, it could result in fatigue and heat cramps.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'feels like' or 'apparent temperature', offers an insight into how hot it feels when we factor in moisture content. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.

Humidity

The average relative humidity in December is 79%.

Rainfall

In December, the rain falls for 28.6 days. Throughout December, 159mm (6.26") of precipitation is accumulated. In Bombaim, during the entire year, the rain falls for 241.7 days and collects up to 1287mm (50.67") of precipitation.

Daylight

In Bombaim, the average length of the day in December is 12h and 7min.
On the first day of the month, sunrise is at 05:19 and sunset at 17:25. On the last day of December, in Bombaim, sunrise is at 05:33 and sunset at 17:39 GMT.

Sunshine

In Bombaim, the average sunshine in December is 8.2h.

UV index

January through May, October through December, with an average maximum UV index of 7, are months with the highest UV index in Bombaim. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: In December, the maximum UV index of 7 suggests these recommendations:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.