April weather forecast
York, Sierra Leone

April, the same as March, in York, Sierra Leone, is another tropical spring month, with an average temperature varying between 25.3°C (77.5°F) and 30.8°C (87.4°F).

Temperature

April's advent denotes a minor fluctuation in the average high-temperature to a still hot 30.8°C (87.4°F) from March's 31°C (87.8°F). York, in April, witnesses an average low-temperature of 25.3°C (77.5°F).

Heat index

The heat index in April is evaluated at a torrid 38°C (100.4°F). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.
Realize that the values for the heat index are set for shaded places and light winds. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a numerical representation of warmth when taking temperature and moisture levels into account. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.

Humidity

In York, the average relative humidity in April is 74%.

Rainfall

In York, during April, the rain falls for 9.7 days and regularly aggregates up to 18mm (0.71") of precipitation. In York, during the entire year, the rain falls for 205.9 days and collects up to 1507mm (59.33") of precipitation.

Daylight

In April, the average length of the day in York is 12h and 19min.
On the first day of April in York, Sierra Leone, sunrise is at 06:50 and sunset at 19:02. On the last day of the month, sunrise is at 06:37 and sunset at 19:02 GMT.

Sunshine

In April, the average sunshine is 9.5h.

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 value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: The UV index of 7 during April leads to these advisories:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.