January weather forecast
Dona Augusta, São Tomé and Príncipe

Typically, the month of January in Dona Augusta, São Tomé and Príncipe, sees consistent weather patterns due to its tropical climate. There are rainy days more than half of the month. Differences in temperature range from 27°C (80.6°F) to 28°C (82.4°F) on average, contributing to a muggy atmosphere. On a positive note, sunshine hours are slightly higher than the yearly average, giving residents a moments of respite from the wetness. Humidity hovers in the high 70%, which, combined with the significant rainfall, can lead to pretty saturated conditions.

Temperature

In January, Dona Augusta experiences a barely noticeable shift in meteorological conditions, with average high-temperatures moving from 27.5°C (81.5°F) in December to a still moderately hot 28°C (82.4°F). Dona Augusta's average temperature throughout the nights in January exhibits a minor decrease from daytime highs, stabilizing at a still moderately hot 27°C (80.6°F).

Heat index

For January, the heat index is computed to be a tropical 32°C (89.6°F). Long-lasting exposure and activity potentially induce a sense of weariness, with the risk of heat cramps.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. 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.

Humidity

The average relative humidity in January in Dona Augusta, São Tomé and Príncipe, is 77%.

Rainfall

In Dona Augusta, during January, the rain falls for 27.1 days and regularly aggregates up to 130mm (5.12") of precipitation. Throughout the year, in Dona Augusta, there are 241.7 rainfall days, and 1287mm (50.67") of precipitation is accumulated.

Daylight

In Dona Augusta, the average length of the day in January is 12h and 7min.
On the first day of the month, sunrise is at 05:33 and sunset at 17:40. On the last day of January, sunrise is at 05:43 and sunset at 17:50 GMT.

Sunshine

In January, the average sunshine is 8.3h.

UV index

The months with the highest UV index are January through May, October 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 unprotected exposure to Sun's UV rays for average individuals.
Note: In January, an average UV index of 7 transforms into the following instructions:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Boost your sun resistance with garments that are densely woven yet spacious.