January weather forecast
Lemba, São Tomé and Príncipe

With a high average temperature of 28°C (82.4°F) and a low of 27°C (80.6°F), January sees a pretty consistent warmth in Lemba, São Tomé and Príncipe. While the welcome respite from the chill of the previous months is brief, much of the month sees clear skies and agreeable conditions, beckoning visitors. However, those looking to avoid high levels of humidity, peaking at 77%, might prefer to wait for a few months. Even though daytime lasts 12.1 hours only, it comes bearing 8.3 hours of sunshine. This being said, make sure to pack an umbrella as there are 27.1 days of rainfall on average, summing up to 130mm (5.12").

Temperature

The introduction of January in Lemba sees an average high-temperature of a still moderately hot 28°C (82.4°F), hardly deviating from December. Lemba's nocturnal average in January closely mirrors its daytime temperatures, settling at a still warm 27°C (80.6°F).

Heat index

The heat index value during January is calculated to be a hot 32°C (89.6°F). If one continues to be active during enduring exposure, it could result in fatigue and heat cramps.
Take note of the fact that heat index values are based on shaded circumstances with light airflows. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', takes into account both air temperature and humidity to illustrate what people actually feel. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. 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 important for children. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.

Humidity

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

Rainfall

In Lemba, during January, the rain falls for 27.1 days and regularly aggregates up to 130mm (5.12") of precipitation. In Lemba, during the entire year, the rain falls for 241.7 days and collects up to 1287mm (50.67") of precipitation.

Daylight

In Lemba, São Tomé and Príncipe, 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, in Lemba, sunrise is at 05:44 and sunset at 17:50 GMT.

Sunshine

In Lemba, São Tomé and Príncipe, the average sunshine in January 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. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: The daily high UV index of 7 in January translates into this advice:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.