January weather forecast
Boa Esperança, São Tomé and Príncipe

January in Boa Esperança, São Tomé and Príncipe, is characterized by relatively high temperatures and heavy rainfall. January receives the most rain of the year reaching a peak at 130mm (5.12") and the average high temperature is 28°C (82.4°F) which is slightly cooler than the following month. The high humidity levels, reaching 77%, add to the intense tropical feel. This month witnesses the powerful combination of warmth, wet weather conditions and a moderate level of sunlight. The wind speed changes subtly, but it remains within the range of 11.1km/h (6.9mph) to 15.8km/h (9.8mph) improving climatic conditions slightly.

Temperature

January experiences an average high-temperature of a still warm 28°C (82.4°F), barely different from December's 27.5°C (81.5°F). Boa Esperança observes a slightly reduced average nighttime temperature of 27°C (80.6°F) during January.

Heat index

For January, the heat index is calculated to be a tropical 32°C (89.6°F). If one stays active during extended exposure, it might induce fatigue and result in heat cramps.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.

Humidity

In Boa Esperança, the average relative humidity in January is 77%.

Rainfall

In Boa Esperança, in January, it is raining for 27.1 days, with typically 130mm (5.12") of accumulated precipitation. Throughout the year, in Boa Esperança, there are 241.7 rainfall days, and 1287mm (50.67") of precipitation is accumulated.

Daylight

In Boa Esperança, the average length of the day in January is 12h and 7min.
On the first day of January in Boa Esperança, sunrise is at 05:33 and sunset at 17:39. On the last day of the month, sunrise is at 05:43 and sunset at 17:50 GMT.

Sunshine

In January, the average sunshine is 8.3h.

UV index

January through May, October through December, with an average maximum UV index of 7, are months with the highest UV index in Boa Esperança. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the average person.
Note: The maximum UV index of 7 during January translates into these guidelines:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.