Question 1

How much rainfall does Mumbai get during monsoon season in 2024?

Accepted Answer

Mumbai received a total of 2,407.2mm (94.8 inches) of rainfall during the 2024 monsoon season from June through September. This substantial precipitation is typical for India's financial capital, which experiences one of the most intense monsoon periods in the country.

July 2024 was the wettest month in Mumbai, recording an exceptional 1,094.0mm (43.1 inches) of rainfall alone—nearly half of the entire monsoon total. August followed with 461.2mm (18.2 inches), while June saw 449.0mm (17.7 inches). September marked the monsoon's gradual retreat with 403.0mm (15.9 inches).

During the 2024 monsoon, Mumbai maintained consistently warm and humid conditions. Average temperatures hovered around 27.0°C (80.6°F), with humidity levels averaging 87.1% across the four-month period. These conditions create the characteristic tropical monsoon climate that defines life in the city during this season.

For visitors and residents planning activities in Mumbai during monsoon season, waterproof clothing and footwear are essential. The heavy July rainfall often causes localized flooding, particularly in low-lying areas. However, the monsoon also brings relief from the pre-monsoon heat and transforms the surrounding Western Ghats into lush green landscapes, making it an excellent time for nature excursions outside the city.

Question 2

What was the hottest month in Mumbai in 2024?

Accepted Answer

May was the hottest month in Mumbai in 2024, with an average temperature of 30.7°C (87.3°F). This pre-monsoon period brought the city's most intense heat before the cooling rains arrived in June.

During May 2024, Mumbai experienced daily maximum temperatures reaching up to 39.7°C (103.5°F), while nighttime lows stayed warm at around 22.4°C (72.3°F). The humidity level averaged 72.7%, creating oppressively muggy conditions typical of the city's summer heat. April 2024 came in as a close second with an average of 29.9°C (85.8°F), though it actually recorded the year's highest single temperature peak at 42.7°C (108.9°F).

The temperature contrast in Mumbai throughout 2024 was notable but moderate compared to inland cities. January was the coolest month at 24.4°C (75.9°F), meaning the difference between the hottest and coolest months was just 6.3°C (11.3°F). This relatively narrow range reflects Mumbai's coastal location, where sea breezes help moderate temperature extremes year-round.

For visitors planning a trip to Mumbai, May is best avoided unless you're prepared for intense heat. The months from November through February offer the most comfortable weather conditions, with temperatures staying in the mid-20s Celsius and lower humidity levels making outdoor exploration much more pleasant.

Question 3

What is the sunniest time of year in Mumbai?

Accepted Answer

Mumbai enjoys its sunniest weather during the pre-monsoon spring months from March to May, with April 2024 recording the highest sunshine at 361.6 hours.

Based on 2024 weather data, the spring season (March through May) delivered a remarkable 1,052.8 hours of sunshine, averaging 350.9 hours per month. April stood out as the brightest month with approximately 12.1 hours of sunshine per day, followed closely by March with 352.9 hours and May with 338.3 hours. During this period, Mumbai experiences average temperatures of 29.1°C (84.4°F), creating warm and bright conditions ideal for outdoor activities.

In stark contrast, the monsoon season from June to September sees a dramatic drop in sunshine. July 2024 recorded just 71.5 hours of sunshine—only 2.3 hours per day—as heavy cloud cover and intense rainfall dominate the city's weather. The entire monsoon period totaled only 645.8 hours of sunshine, less than two-thirds of what the spring months alone provide.

For visitors planning a trip to Mumbai, the March to May window offers the most consistent sunny weather conditions, though temperatures can reach their peak during this time. The city recorded a total of 3,302.2 hours of sunshine throughout 2024, with the pre-monsoon period accounting for nearly a third of this annual total.

Question 4

What is the coolest time of year in Mumbai?

Accepted Answer

Mumbai experiences its coolest weather during the winter months from December to February, with January being the mildest month of the year. In 2024, January recorded an average temperature of 24.4°C (75.9°F), making it the most comfortable period for outdoor activities in the city.

During Mumbai's winter season, average temperatures ranged from 24.4°C to 25.6°C (75.9°F to 78.1°F), which is approximately 2.7°C cooler than the annual average of 27.1°C (80.8°F). The coolest nighttime temperatures occurred in January, dropping to 15.4°C (59.7°F), providing welcome relief from the tropical heat that dominates most of the year.

The winter months in Mumbai also feature lower humidity levels, averaging around 57.7% compared to the monsoon season when humidity regularly exceeds 85%. This combination of milder temperatures and reduced humidity makes December through February the most pleasant time to explore Mumbai's outdoor attractions, from Marine Drive to the Gateway of India.

While Mumbai never experiences truly cold weather due to its tropical climate, visitors seeking the most comfortable conditions should plan their trip between December and February when daytime highs typically remain below 36°C (97°F) and evenings offer a refreshing coolness rarely found during other seasons.

Question 5

What were the humidity levels in Mumbai throughout 2024?

Accepted Answer

Mumbai experienced an average humidity of 71.4% throughout 2024, with dramatic seasonal variations driven by the monsoon cycle.

The city's humidity levels showed a clear pattern across the year. February 2024 recorded the lowest humidity at 52.2%, making it the driest month for the city. In contrast, July reached peak humidity at 89.8%, coinciding with the height of monsoon season when Mumbai received over 1,000mm of rainfall.

During the monsoon months from June to September, Mumbai's average humidity soared to 87.1%. Five consecutive months—June through October—maintained humidity levels at or above 80%, creating the characteristic sticky conditions the city is known for during this period. The pre-monsoon buildup was evident in May, when humidity jumped to 72.7% as moisture-laden winds approached from the Arabian Sea.

The dry season from November to February offered considerable relief, with average humidity dropping to 57.4%—nearly 30 percentage points lower than monsoon conditions. This makes Mumbai's winter months particularly pleasant for outdoor activities and sightseeing.

For visitors planning a trip to Mumbai, the lower humidity during January and February (around 52-59%) provides the most comfortable conditions, while those visiting during July through September should prepare for near-constant high humidity exceeding 85%.

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FAQ

How much rainfall does Mumbai get during monsoon season in 2024?

What was the hottest month in Mumbai in 2024?

What is the sunniest time of year in Mumbai?

What is the coolest time of year in Mumbai?

What were the humidity levels in Mumbai throughout 2024?