January weather forecast
Masa, Sierra Leone

January, like December, is another hot winter month in Masa, Sierra Leone, with temperature in the range of an average low of 23.8°C (74.8°F) and an average high of 31.7°C (89.1°F).

Temperature

Masa notes an average high-temperature of a still tropical 31.7°C (89.1°F) in January, hardly diverging from December. In Masa, in January, the average low-temperature is a moderately hot 23.8°C (74.8°F).

Heat index

The heat index in January is appraised at a scorching 40°C (104°F). Take more caution, heat exhaustion and heat cramps may occur. Long-lasting activity may cause heatstroke.
Heat index values are typically calculated for conditions of shade and a light breeze. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air 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. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. When relative humidity is heightened, it slows the rate of evaporation, thereby decreasing the body's ability to shed heat and creating a sensation of overheating. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.

Humidity

The months with the lowest humidity are January and February, with an average relative humidity of 72%.

Rainfall

In Masa, in January, during 5.6 rainfall days, 7mm (0.28") of precipitation is typically accumulated. In Masa, during the entire year, the rain falls for 239 days and collects up to 1820mm (71.65") of precipitation.

Daylight

In Masa, the average length of the day in January is 11h and 44min.
On the first day of the month, sunrise is at 06:58 and sunset at 18:40. On the last day of January, sunrise is at 07:05 and sunset at 18:53 GMT.

Sunshine

With an average of 9.5h of sunshine, January has the most sunshine of the year.

UV index

The months with the highest UV index are January through June, September through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: The UV index of 7 during January leads to these advisories:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.