, hot all year round, with a long, sunny season from early or mid-October to early June and a rainy season from June to September or early October. The latter is due to the south-west monsoon and is characterized by stuffy weather, cloud cover and frequent rains, which occur almost every day and are sometimes torrential.
, from March to May, the heat becomes intense, in fact, the temperature can sometimes reach 38/40 °C (100/104 °F); this partly happens also in the period after the monsoon, in October and November, when it can reach 36/38 °C (97/100 °F).
, from December to February, the weather is normally hot and sunny. During the day, it gets sometimes very hot, in fact, the temperature can reach 35/36 °C (95/97 °F), while at night, it normally returns below 20 °C (68 °F), and from time to time, it can even drop below 15 °C (59 °F): it is better to bring a sweatshirt for safety.
in Mumbai lasts from June to early October and is definitely intense, since the wet currents come directly from the sea: in July, up to 710 millimeters (28 inches) of
fall. In July and August, the sky is almost always cloudy, and relative humidity is very high, although the sea breeze gives a bit of relief. In Mumbai, precipitation amounts to about 2,200 mm (86 in) per year.
in Mumbai regularly shines in the dry season, while in the rainy season, the sky is often cloudy, especially in July and August.
. Typically, cyclones occur from April to December, with two peaks at the beginning and end of the period (April-June and October-December). For a few decades before 2020, cyclones have spared Mumbai, passing to the north or the south, however, recently the city was directly affected by Cyclone Nisarga in early June 2020 and Cyclone Tauktae in mid-May 2021. In any case, even when they pass a certain distance, cyclones can bring heavy rainfall, as happened with Cyclone Phyan in November 2009 and with Cyclone Ockhi in early December 2017.
The best months to visit Mumbai are January and February. In November and December, the rains have usually ceased, but a cyclone can sometimes affect this area. In March, it starts to get very hot.
. Here are the average temperatures.
January, the coolest month of the year, is generally a warm to hot month. However, there are remarkable differences between night and day. The average temperature is of
24 °C, with a minimum of
16.8 °C and a maximum of
31.3 °C.
On the coldest nights of the month, the temperature usually drops to around
12.5 °C. However, it dropped to
10 °C in January 1991.
On the warmest days of the month, the temperature usually reaches around
35.5 °C. However, it reached
37.4 °C in January 2006.
Precipitation amounts to only
0.9 mm, distributed over 0 days.
The day lasts on average 11 hours and 5 minutes.
There are on average 9 hours of sunshine per day. So, the sun shines 82% of the time.
The average humidity is 55%.
The average wind speed is of
6.7 kph.
The average sea temperature is of
25.2 °C. Therefore, the sea is warm enough for swimming.
February is generally a warm to hot month. However, there are remarkable differences between night and day. The average temperature is of
25 °C, with a minimum of
18.1 °C and a maximum of
31.9 °C.
On the coldest nights of the month, the temperature usually drops to around
14 °C. However, it dropped to
8.5 °C in February 2008.
On the warmest days of the month, the temperature usually reaches around
37 °C. However, it reached
40 °C in February 2017.
Precipitation amounts to only
0.2 mm, distributed over 0 days.
The day lasts on average 11 hours and 30 minutes.
There are on average 9.5 hours of sunshine per day. So, the sun shines 84% of the time.
The average humidity is 55%.
The average wind speed is of
7.4 kph.
The average sea temperature is of
24.9 °C. Therefore, the sea is warm enough for swimming.
March is generally a warm to hot month. The average temperature is of
27.2 °C, with a minimum of
21.1 °C and a maximum of
33.3 °C.
On the coldest nights of the month, the temperature usually drops to around
17 °C. However, it dropped to
12.7 °C in March 2012.
On the warmest days of the month, the temperature usually reaches around
39 °C. However, it reached
42 °C in March 2018.
Precipitation amounts to only
0.4 mm, distributed over 0 days.
The day lasts on average 12 hours and 5 minutes.
There are on average 9 hours of sunshine per day. So, the sun shines 75% of the time.
The average humidity is 58%.
The average wind speed is of
8.3 kph.
The average sea temperature is of
25.9 °C. Therefore, the sea is warm enough for swimming.
April is generally a very hot month. The average temperature is of
28.8 °C, with a minimum of
24.1 °C and a maximum of
33.5 °C.
On the coldest nights of the month, the temperature usually drops to around
21 °C. However, it dropped to
18.7 °C in April 2003.
On the warmest days of the month, the temperature usually reaches around
37.5 °C. However, it reached
41 °C in April 2009.
Precipitation amounts to only
0.5 mm, distributed over 0 days.
The day lasts on average 12 hours and 35 minutes.
There are on average 9.5 hours of sunshine per day. So, the sun shines 74% of the time.
The average humidity is 66%.
The average wind speed is of
8.9 kph.
The average sea temperature is of
27.5 °C. Therefore, the sea is pleasantly warm and allows long swims.
May, the hottest month of the year, is generally a very hot month. The average temperature is of
30.2 °C, with a minimum of
26.7 °C and a maximum of
33.8 °C.
On the coldest nights of the month, the temperature usually drops to around
24 °C. However, it dropped to
20.4 °C in May 2002.
On the warmest days of the month, the temperature usually reaches around
36 °C. However, it reached
38.7 °C in May 2004.
Precipitation amounts to
20 mm, and all occurs in one day.
The day lasts on average 13 hours and 0 minutes.
There are on average 9 hours of sunshine per day. So, the sun shines 68% of the time.
The average humidity is 69%.
The average wind speed is of
10.9 kph.
The average sea temperature is of
29.1 °C. Therefore, the sea is pleasantly warm and allows long swims.
June is generally a very hot, muggy month. The average temperature is of
29.4 °C, with a minimum of
26.4 °C and a maximum of
32.5 °C.
On the coldest nights of the month, the temperature usually drops to around
23 °C. However, it dropped to
20 °C in June 2001.
On the warmest days of the month, the temperature usually reaches around
35.5 °C. However, it reached
39 °C in June 2014.
Precipitation amounts to
530 mm, distributed over 14 days.
The day lasts on average 13 hours and 20 minutes. June 21, the summer solstice, is the longest day of the year in the Northern Hemisphere.
There are on average 4.5 hours of sunshine per day. So, the sun shines 34% of the time.
The average humidity is 77%. Hence, the air is normally humid.
The average wind speed is of
12.7 kph.
The average sea temperature is of
29.5 °C. Therefore, the sea is pleasantly warm and allows long swims.
July is generally a very hot, muggy month. The average temperature is of
27.9 °C, with a minimum of
25.4 °C and a maximum of
30.4 °C.
On the coldest nights of the month, the temperature usually drops to around
23 °C. However, it dropped to
20.4 °C in July 1996.
On the warmest days of the month, the temperature usually reaches around
32.5 °C. However, it reached
34 °C in July 1998.
Precipitation amounts to
710 mm, distributed over 21 days.
The day lasts on average 13 hours and 5 minutes.
There are on average 2.5 hours of sunshine per day. So, the sun shines 20% of the time.
The average humidity is 83%. Hence, the air is normally humid.
The average wind speed is of
14.2 kph.
The average sea temperature is of
28.8 °C. Therefore, the sea is pleasantly warm and allows long swims.
August is generally a very hot, muggy month. The average temperature is of
27.8 °C, with a minimum of
25.2 °C and a maximum of
30.3 °C.
On the coldest nights of the month, the temperature usually drops to around
23.5 °C. However, it dropped to
21.8 °C in August 2017.
On the warmest days of the month, the temperature usually reaches around
32 °C. However, it reached
33.2 °C in August 2020.
Precipitation amounts to
495 mm, distributed over 20 days.
The day lasts on average 12 hours and 40 minutes.
There are on average 2.5 hours of sunshine per day. So, the sun shines 20% of the time.
The average humidity is 82%. Hence, the air is normally humid.
The average wind speed is of
12.9 kph.
The average sea temperature is of
28 °C. Therefore, the sea is pleasantly warm and allows long swims.
September is generally a very hot, muggy month. The average temperature is of
28 °C, with a minimum of
24.8 °C and a maximum of
31.1 °C.
On the coldest nights of the month, the temperature usually drops to around
23 °C. However, it dropped to
20.7 °C in September 1993.
On the warmest days of the month, the temperature usually reaches around
34 °C. However, it reached
37.4 °C in September 2015.
Precipitation amounts to
330 mm, distributed over 13 days.
The day lasts on average 12 hours and 10 minutes.
There are on average 5 hours of sunshine per day. So, the sun shines 40% of the time.
The average humidity is 80%. Hence, the air is normally humid.
The average wind speed is of
8.6 kph.
The average sea temperature is of
28.4 °C. Therefore, the sea is pleasantly warm and allows long swims.
October is generally a very hot month. The average temperature is of
28.8 °C, with a minimum of
23.8 °C and a maximum of
33.8 °C.
On the coldest nights of the month, the temperature usually drops to around
20 °C. However, it dropped to
17.9 °C in October 2005.
On the warmest days of the month, the temperature usually reaches around
36.5 °C. However, it reached
39 °C in October 1997.
Precipitation amounts to
80 mm, distributed over 3 days.
The day lasts on average 11 hours and 40 minutes.
There are on average 7.5 hours of sunshine per day. So, the sun shines 66% of the time.
The average humidity is 67%.
The average wind speed is of
6.9 kph.
The average sea temperature is of
28.8 °C. Therefore, the sea is pleasantly warm and allows long swims.
November is generally a very hot month. The average temperature is of
27.8 °C, with a minimum of
21.4 °C and a maximum of
34.2 °C.
On the coldest nights of the month, the temperature usually drops to around
18 °C. However, it dropped to
14.6 °C in November 2012.
On the warmest days of the month, the temperature usually reaches around
36.5 °C. However, it reached
38.2 °C in November 2013.
Precipitation amounts to
14.9 mm, distributed over 0 days.
The day lasts on average 11 hours and 10 minutes.
There are on average 9 hours of sunshine per day. So, the sun shines 80% of the time.
The average humidity is 56%.
The average wind speed is of
6.8 kph.
The average sea temperature is of
27.9 °C. Therefore, the sea is pleasantly warm and allows long swims.
December is generally a warm to hot month. However, there are remarkable differences between night and day. The average temperature is of
25.5 °C, with a minimum of
18.4 °C and a maximum of
32.5 °C.
On the coldest nights of the month, the temperature usually drops to around
14 °C. However, it dropped to
11.4 °C in December 2011.
On the warmest days of the month, the temperature usually reaches around
35 °C. However, it reached
37.7 °C in December 2008.
Precipitation amounts to only
2.6 mm, distributed over 0 days.
The day lasts on average 11 hours and 0 minutes. December 21, the winter solstice, is the shortest day of the year in the Northern Hemisphere.
There are on average 9 hours of sunshine per day. So, the sun shines 81% of the time.
The average humidity is 55%.
The average wind speed is of
6.6 kph.
The average sea temperature is of
26.4 °C. Therefore, the sea is pleasantly warm and allows long swims.