April weather forecast
Mumbai, India

April witnesses a significant rise in temperature in Mumbai. The city experiences scorching heat, with the maximum temperature reaching 33°C (91.4°F) and the minimum hovering around 23.9°C (75°F). It is advisable to avoid planning outdoor activities during daylight hours. As the sun sets, the temperature tends to recede, allowing residents and tourists to enjoy pleasant evenings. As April runs its course, the city gears up for the rainy season, signalled by a marginal increase in rainfall levels.

Temperature

The shift into April uncovers an average high-temperature of a still tropical 33°C (91.4°F), subtly different from the previous month. Throughout April, the nighttime temperature in Mumbai, India, averages to a moderately hot 23.9°C (75°F).

Heat index

During April, the heat index is appraised at a blistering 44°C (111.2°F). Alert: Heat cramps and heat exhaustion are likely to occur. Prolonged exertion can lead to heatstroke.
In terms of the heat index, values are set with light wind and shade conditions in mind. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

The average relative humidity in April in Mumbai, India, is 71%.

Rainfall

In April, in Mumbai, the rain falls for 0.1 days. Throughout April, 1mm (0.04") of precipitation is accumulated. Throughout the year, in Mumbai, there are 78.9 rainfall days, and 2258mm (88.9") of precipitation is accumulated.

Sea temperature

In Mumbai, in April, the average water temperature is 28.2°C (82.8°F).
Note: Water temperature from 25°C (77°F) to 29°C (84.2°F) is considered very warm, making water activities enjoyable for prolonged periods without any uncomfortable sensations.

Daylight

In Mumbai, the average length of the day in April is 12h and 35min.
On the first day of April, sunrise is at 6:32 am and sunset at 6:52 pm. On the last day of the month, sunrise is at 6:10 am and sunset at 7:00 pm IST.

Sunshine

In Mumbai, the average sunshine in April is 9.5h.

UV index

The months with the highest UV index are March through September, with an average maximum UV index of 12. A UV Index estimate of 11, and higher, represents an excessive health risk from exposure to the Sun's UV radiation for the average person.
Note: In April, the average maximum UV index of 12 translates into the following recommendations:
Enforce every key safety measure. Those with light skin might get burns in a matter of minutes. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Even on overcast days, a sunscreen with a sun protection factor of no less than 30 should be generously applied and reapplied, particularly after swimming or outdoor activities. Be cautious! Sand and water surfaces make the Sun's UV rays more potent.