April weather forecast
Chittagong, Bangladesh

As summer progresses in Chittagong, April shows further intensification of the season's traits. The city experiences a drastic rise in temperature from March, along with an increase in rainfall, contributing to the soaring humidity levels. Consequently, April is known for its unpredictable weather, varying from glaring sunshine to sudden heavy downpour. April's temperatures fluctuate from 25.2°C (77.4°F) to 32°C (89.6°F) with a significant increase in rainfall to 42mm (1.65"). The city's weather characteristically shifts from hot sunny days to sudden bouts of rainfall in the afternoons, introducing a more tropical climate profile to the region.

Temperature

April temperatures in Chittagong tend to peak at an average high of 32°C (89.6°F) and dip to a low of 25.2°C (77.4°F).

Heat index

In April, the heat index is evaluated at a scorching 42°C (107.6°F). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.
When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', reflects the blend of air temperature and relative humidity to give a temperature impression. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
In response to overheating, the human body perspires to cool down, mainly through the evaporation of sweat. 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. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.

Humidity

In April, the average relative humidity in Chittagong is 75%.

Rainfall

In Chittagong, during April, the rain falls for 11.8 days and regularly aggregates up to 42mm (1.65") of precipitation. Throughout the year, in Chittagong, there are 183.8 rainfall days, and 1579mm (62.17") of precipitation is accumulated.

Sea temperature

In Chittagong, in April, the average water temperature is 28.2°C (82.8°F).
Note: Engaging in water activities, such as swimming or diving, in temperatures from 25°C (77°F) to 29°C (84.2°F) is very pleasurable for extended periods, without any discomfort.

Daylight

In April, the average length of the day is 12h and 40min.
On the first day of the month, sunrise is at 5:45 am and sunset at 6:08 pm. On the last day of April, in Chittagong, sunrise is at 5:20 am and sunset at 6:18 pm +06.

Sunshine

With an average of 11.1h of sunshine, April has the most sunshine of the year in Chittagong.

UV index

March through June and September, with an average maximum UV index of 7, are months with the highest UV index in Chittagong, Bangladesh. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the average person.
Note: In April, the maximum UV index of 7 translates into these guidelines:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Take note! Sand and water reflections strengthen the Sun's UV exposure.