April weather forecast
Port Blair, India

April is a hot pre-monsoon summer month in Port Blair, India, with an average temperature varying between 30.1°C (86.2°F) and 28.3°C (82.9°F).

Temperature

The highest point of temperatures falls in April and May, when the average high-temperature ascends to 30.1°C (86.2°F).

Heat index

April's average heat index is calculated to be a torrid 36°C (96.8°F). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.
The heat index's values are generally associated with conditions in shade and light breezes. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
When faced with excessive heat, the human body begins to perspire, utilizing the cooling benefits of sweat evaporation. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

In April, the average relative humidity in Port Blair, India, is 72%.

Rainfall

In April, the rain falls for 12.2 days. Throughout April, 50mm (1.97") of precipitation is accumulated. Throughout the year, there are 240.3 rainfall days, and 1806mm (71.1") of precipitation is accumulated.

Sea temperature

April and May, with an average sea temperature of 30.3°C (86.5°F), are months with the warmest seawater in Port Blair.
Note: It is often said that swimming in waters above 30°C (86°F) can feel less revitalizing.

Daylight

In April, the average length of the day in Port Blair is 12h and 23min.
On the first day of the month, sunrise is at 5:15 am and sunset at 5:30 pm. On the last day of April, in Port Blair, sunrise is at 5:00 am and sunset at 5:32 pm IST.

Sunshine

In April, the average sunshine in Port Blair, India, is 9.4h.

UV index

The months with the highest UV index in Port Blair, India, are January through May, October through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for average individuals.
Note: The average daily UV index of 7 in April transforms into the following instructions:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Be cautious! Sand and water surfaces make the Sun's UV rays more potent.