March weather forecast
Waterloo, Sierra Leone

Waterloo's weather in March shifts considerably, reflecting the onset of a wet period. There is a noteworthy leap from 1mm (0.04") of rainfall in February to 6mm (0.24"). While daytime temperatures fluctuate slightly, nights become a bit cooler. Despite extended periods of sunshine, a higher cloud percentage indicates moist conditions, preparing the ground for April showers. Moving closer to the heart of the wet season, the last week of March hints at the weather transformation expected in April.

Temperature

Waterloo's shift into March is marked by a subtle change to a still hot 31°C (87.8°F) from February's 31.3°C (88.3°F) in temperature. Throughout the month of March, Waterloo witnesses an average low-temperature of 24.6°C (76.3°F).

Heat index

The heat index value during March is calculated to be a fiery hot 39°C (102.2°F). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.
Data suggests that the heat index is set for environments in shade and with a light wind. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is the outcome of merging air's temperature and its humidity metrics. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
In response to overheating, the human body perspires to cool down, mainly through the evaporation of sweat. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.

Humidity

In March, the average relative humidity in Waterloo is 73%.

Rainfall

In Waterloo, during March, the rain falls for 5.8 days and regularly aggregates up to 6mm (0.24") of precipitation. Throughout the year, in Waterloo, Sierra Leone, there are 205.9 rainfall days, and 1507mm (59.33") of precipitation is accumulated.

Daylight

In March, the average length of the day is 12h and 5min.
On the first day of March in Waterloo, sunrise is at 07:05 and sunset at 19:03. On the last day of the month, sunrise is at 06:50 and sunset at 19:02 GMT.

Sunshine

In Waterloo, Sierra Leone, the average sunshine in March is 9.7h.

UV index

The months with the highest UV index in Waterloo, Sierra Leone, are January through June, September through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The daily high UV index of 7 in March translates into this advice:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.