April weather forecast
Bengaluru, India

April brings Bengaluru's summer to its peak. The city experiences its highest average temperatures of the year, with highs potentially reaching up to 35.8°C (96.4°F). It is also typically the driest month of the year, with the onset of the monsoon still some weeks away. It's a period of pure, unadulterated summer weather with long, sunny days and hot temperatures. Yet, despite the higher temperatures, the city's altitude ensures the heat doesn't become overwhelming.

Temperature

With average temperatures fluctuating between a high of 35.8°C (96.4°F) and a low of 21.8°C (71.2°F), April stands out as the warmest month.

Heat index

The heat index for April is calculated to be a blistering 43°C (109.4°F). Remain cautious: Heat cramps along with heat exhaustion are foreseeable. Ongoing activity may precipitate heatstroke.
Heat index's context suggests values are appropriate for shady areas and slight breezes. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', is a numerical representation of warmth when taking temperature and moisture levels into account. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
Perspiration and the resultant sweat evaporation are the body's natural thermostat, helping regulate temperature. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.

Humidity

In April, the average relative humidity is 51%.

Rainfall

In April, the rain falls for 3 days. Throughout April, 40mm (1.57") of precipitation is accumulated. In Bengaluru, India, during the entire year, the rain falls for 58.5 days and collects up to 975mm (38.39") of precipitation.

Daylight

In Bengaluru, the average length of the day in April is 12h and 26min.
On the first day of April in Bengaluru, sunrise is at 6:15 am and sunset at 6:31 pm. On the last day of the month, sunrise is at 5:59 am and sunset at 6:34 pm IST.

Sunshine

In Bengaluru, the average sunshine in April is 8.6h.

UV index

The months with the highest UV index are February through October, 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 ordinary person.
Note: In April, the maximum UV index of 12 translates into these guidelines:
Execute all vital precautions. Preventing sun damage is of utmost importance. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Even on a cloudy day, a sunscreen with at least a 30 SPF should be applied generously and frequently reapplied, including after a swim or outdoor exercise.