April weather forecastAberdeen, Sierra Leone

Weather in April

April marks a significant change in weather for Aberdeen, Sierra Leone, as this month witnesses the transition from the dry season to the wet season. There is a whopping increase in rainfall from 6mm (0.24") in March to 18mm (0.71"), signaling the start of the monsoon season. The increase in cloud cover corresponds with the rising number of rainy days. Meanwhile, the temperatures exhibit a consistent increase, compensating for the decrease in sunlight hours. Despite being the start of the wet season, the sunshine hours are relatively high compared to the upcoming months.

Temperature

Transitioning into April, Aberdeen experiences an average high-temperature of a still hot 30.8°C (87.4°F), marking a minor shift from the preceding month. An average nighttime temperature of 25.3°C (77.5°F) is recorded during April.

Heat index

In April, the average heat index is evaluated at a very hot 38°C (100.4°F). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.
In terms of the heat index, values are set with light wind and shade conditions in mind. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
Through perspiration, the body has a natural mechanism to eliminate excessive heat via sweat evaporation. When the air holds a significant amount of moisture, the efficiency of the evaporation process is decreased, preventing the body from cooling down efficiently, leading to the sensation of overheating. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.

Humidity

In April, the average relative humidity is 74%.

Rainfall

In April, the rain falls for 9.7 days. Throughout April, 18mm (0.71") of precipitation is accumulated. Throughout the year, there are 205.9 rainfall days, and 1507mm (59.33") of precipitation is accumulated.

Daylight

In Aberdeen, the average length of the day in April is 12h and 19min.
On the first day of the month, sunrise is at 06:50 and sunset at 19:03. On the last day of April, sunrise is at 06:37 and sunset at 19:03 GMT.

Sunshine

In April, the average sunshine is 9.5h.

UV index

January through June, September through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 7 in April converts into the following recommendations:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Always opt for UVA and UVB-resistant sunglasses on radiant days.