December weather forecast
Bela Vista, São Tomé and Príncipe

Bela Vista, São Tomé, and Príncipe experience a mellow transition into the last month of the year. The rainfall decreases to 159mm (6.26"), bidding a gradual farewell to the intense rainy season. The arrival of the month sees a moderate descent in wind speed to 10.8km/h (6.7mph), mirroring the easing atmospheric aggression. Residents and visitors are bestowed with 8.2 hours of sunshine, allowing for considerable outdoor activities despite the drop-in temperatures. Altogether, December preserves the tropical maritime climate's allure, ensuring year-round viability of the alluring city.

Temperature

Entering December, the average high-temperature is recorded at a still warm 27.5°C (81.5°F), exhibiting a minimal shift from November's 27.1°C (80.8°F). Bela Vista registers a steady nighttime temperature averaging a still moderately hot 26.6°C (79.9°F) throughout December.

Heat index

Throughout December, the heat index is evaluated at a hot 31°C (87.8°F). Persistent activity under exposure might lead to a feeling of weariness, with subsequent heat cramps.
Factoring in the heat index, values are geared towards shaded areas with light breezes. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', combines both the air temperature and the humidity level to give a perceived human temperature. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.

Humidity

The average relative humidity in December in Bela Vista is 79%.

Rainfall

In Bela Vista, in December, during 28.6 rainfall days, 159mm (6.26") of precipitation is typically accumulated. In Bela Vista, São Tomé and Príncipe, during the entire year, the rain falls for 241.7 days and collects up to 1287mm (50.67") of precipitation.

Daylight

The month with the shortest days in Bela Vista, São Tomé and Príncipe, is December, with an average of 12h and 6min of daylight.
On the first day of the month, sunrise is at 05:19 and sunset at 17:25. On the last day of December, in Bela Vista, sunrise is at 05:33 and sunset at 17:39 GMT.

Sunshine

In December, the average sunshine in Bela Vista is 8.2h.

UV index

The months with the highest UV index in Bela Vista, São Tomé and Príncipe, are January through May, October through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: A daily maximum UV index of 7 in December translates into the following instructions:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Always opt for UVA and UVB-resistant sunglasses on radiant days.