Climate - Dhaka (Bangladesh)

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The climate of Dhaka is tropical, influenced by the monsoon, with a dry season from November to March and a rainy season from May to October.
The city is the capital of Bangladesh and is located in the center of the country, just north of the Tropic of Cancer, in the huge Ganges-Brahmaputra delta.
From December to February, the coolest period, the night temperature can drop to 11/12 °C (52/54 °F) or even below. Furthermore, especially in December and January, fog can form, and there can be quite cool days, with highs below 20 °C (68 °F). In January 2013, the temperature dropped to 7 °C (44.5 °F), with a maximum of 16 °C (61 °F).
Dhaka is a very polluted city, and in this period, without rain and with a stable atmosphere, very high levels of pollution are reached.
From February the temperature rises, and already in March there can be very hot periods. From the end of March to the beginning of June, the temperature can reach or exceed 36/37 °C (97/99 °F). In late April 2014, it reached 42 °C (107.5 °F).
During this period, showers or thunderstorms in the afternoon occur, which become gradually more frequent and intense, to the point that May is a very rainy month.
The actual monsoon runs from June to early October. In this period, the rains are frequent and abundant, and the sky is often cloudy.
Dhaka is in the path of tropical cyclones. Typically, cyclones occur from April to December, with two intensity peaks before and after the monsoon (from late April to early June and in October-November).

Dhaka - Climate data

The average temperature of the coldest month (January) is of 19.6 °C (67.3 °F), that of the warmest month (June) is of 29.7 °C (85.5 °F). Here are the average temperatures.
Precipitation amounts to 2085 millimeters (82.1 inches) per year: it is therefore abundant. It ranges from 8 mm (0.3 in) in the driest month (January) to 375 mm (14.8 in) in the wettest one (July). Here is the average precipitation.
On average, there are around 2435 sunshine hours per year. Here are the average sunshine hours per day.

Dhaka - Weather by month

Based on the period 1996-2020

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In January, the coldest month of the year, the weather in Dhaka is usually warm. The average temperature is of 19.6 °C (67 °F), with a minimum of 14.5 °C (58.2 °F) and a maximum of 24.6 °C (76.4 °F).
On the coldest nights of the month, the temperature usually drops to around 11.5 °C (52.5 °F).
On the warmest days of the month, the temperature usually reaches around 28 °C (83 °F).
Precipitation amounts to only 8 mm (0.3 in), distributed over 2 days.
The day lasts on average 10 hours and 55 minutes.
There are on average 7 sunshine hours per day. So, the sun shines 65% of the time.
The average humidity is 69%.
The average wind speed is 6 kph (4 mph).

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In February, the weather in Dhaka is usually warm to hot. The average temperature is of 23.2 °C (74 °F), with a minimum of 17.9 °C (64.2 °F) and a maximum of 28.5 °C (83.3 °F).
On the coldest nights of the month, the temperature usually drops to around 14 °C (57.5 °F).
On the warmest days of the month, the temperature usually reaches around 32 °C (90 °F).
Precipitation amounts to 25 mm (1 in), distributed over 3 days.
The day lasts on average 11 hours and 25 minutes.
There are on average 8 sunshine hours per day. So, the sun shines 70% of the time.
The average humidity is 61%.
The average wind speed is 7 kph (4 mph).

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In March, the weather in Dhaka is usually warm to hot. The average temperature is of 27.1 °C (81 °F), with a minimum of 22.1 °C (71.7 °F) and a maximum of 32.1 °C (89.8 °F).
On the coldest nights of the month, the temperature usually drops to around 18 °C (64.5 °F).
On the warmest days of the month, the temperature usually reaches around 35.5 °C (96 °F).
Precipitation amounts to 60 mm (2.4 in), distributed over 5 days.
The day lasts on average 12 hours and 0 minutes.
There are on average 8.5 sunshine hours per day. So, the sun shines 69% of the time.
The average humidity is 59%.
The average wind speed is 9 kph (6 mph).

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In April, the weather in Dhaka is usually very hot. The average temperature is of 29.2 °C (84 °F), with a minimum of 24.8 °C (76.6 °F) and a maximum of 33.5 °C (92.4 °F).
On the coldest nights of the month, the temperature usually drops to around 20.5 °C (69 °F).
On the warmest days of the month, the temperature usually reaches around 37 °C (99 °F).
Precipitation amounts to 140 mm (5.5 in), distributed over 10 days.
The day lasts on average 12 hours and 40 minutes.
There are on average 8 sunshine hours per day. So, the sun shines 63% of the time.
The average humidity is 66%.
The average wind speed is 12 kph (8 mph).

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In May, the weather in Dhaka is usually very hot. The average temperature is of 29.3 °C (85 °F), with a minimum of 25.7 °C (78.3 °F) and a maximum of 32.9 °C (91.3 °F).
On the coldest nights of the month, the temperature usually drops to around 22 °C (71.5 °F).
On the warmest days of the month, the temperature usually reaches around 36.5 °C (97.5 °F).
Precipitation amounts to 280 mm (11 in), distributed over 15 days.
The day lasts on average 13 hours and 20 minutes.
There are on average 7 sunshine hours per day. So, the sun shines 53% of the time.
The average humidity is 73%. Hence, the air is normally humid.
The average wind speed is 13 kph (8 mph).

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In June, the warmest month of the year, the weather in Dhaka is usually very hot. The average temperature is of 29.7 °C (85 °F), with a minimum of 27 °C (80.6 °F) and a maximum of 32.4 °C (90.3 °F).
On the coldest nights of the month, the temperature usually drops to around 24.5 °C (76 °F).
On the warmest days of the month, the temperature usually reaches around 35.5 °C (96 °F).
Precipitation amounts to 345 mm (13.6 in), distributed over 14 days.
The day lasts on average 13 hours and 35 minutes. June 21, the summer solstice, is the longest day of the year in the Northern Hemisphere.
There are on average 4.5 sunshine hours per day. So, the sun shines 35% of the time.
The average humidity is 78%. Hence, the air is normally humid.
The average wind speed is 13 kph (8 mph).

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In July, the weather in Dhaka is usually very hot. The average temperature is of 29.5 °C (85 °F), with a minimum of 27.2 °C (81 °F) and a maximum of 31.7 °C (89.1 °F).
On the coldest nights of the month, the temperature usually drops to around 25.5 °C (77.5 °F).
On the warmest days of the month, the temperature usually reaches around 35 °C (95 °F).
Precipitation amounts to 375 mm (14.8 in), distributed over 17 days.
The day lasts on average 13 hours and 25 minutes.
There are on average 4 sunshine hours per day. So, the sun shines 32% of the time.
The average humidity is 80%. Hence, the air is normally humid.
The average wind speed is 14 kph (8 mph).

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In August, the weather in Dhaka is usually very hot. The average temperature is of 29.6 °C (85 °F), with a minimum of 27.2 °C (81 °F) and a maximum of 31.9 °C (89.4 °F).
On the coldest nights of the month, the temperature usually drops to around 25.5 °C (77.5 °F).
On the warmest days of the month, the temperature usually reaches around 35 °C (94.5 °F).
Precipitation amounts to 295 mm (11.6 in), distributed over 16 days.
The day lasts on average 12 hours and 55 minutes.
There are on average 4.5 sunshine hours per day. So, the sun shines 35% of the time.
The average humidity is 79%. Hence, the air is normally humid.
The average wind speed is 12 kph (8 mph).

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In September, the weather in Dhaka is usually very hot. The average temperature is of 29.4 °C (85 °F), with a minimum of 27 °C (80.6 °F) and a maximum of 31.9 °C (89.3 °F).
On the coldest nights of the month, the temperature usually drops to around 25 °C (77 °F).
On the warmest days of the month, the temperature usually reaches around 34.5 °C (94.5 °F).
Precipitation amounts to 340 mm (13.4 in), distributed over 13 days.
The day lasts on average 12 hours and 20 minutes.
There are on average 5 sunshine hours per day. So, the sun shines 41% of the time.
The average humidity is 79%. Hence, the air is normally humid.
The average wind speed is 10 kph (6 mph).

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In October, the weather in Dhaka is usually very hot. The average temperature is of 28.4 °C (83 °F), with a minimum of 25.3 °C (77.5 °F) and a maximum of 31.4 °C (88.6 °F).
On the coldest nights of the month, the temperature usually drops to around 22 °C (72 °F).
On the warmest days of the month, the temperature usually reaches around 35 °C (95 °F).
Precipitation amounts to 175 mm (6.9 in), distributed over 7 days.
The day lasts on average 11 hours and 35 minutes.
There are on average 7.5 sunshine hours per day. So, the sun shines 64% of the time.
The average humidity is 75%. Hence, the air is normally humid.
The average wind speed is 7 kph (4 mph).

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In November, the weather in Dhaka is usually warm to hot. The average temperature is of 25.4 °C (78 °F), with a minimum of 21.3 °C (70.4 °F) and a maximum of 29.4 °C (85 °F).
On the coldest nights of the month, the temperature usually drops to around 18 °C (65 °F).
On the warmest days of the month, the temperature usually reaches around 32.5 °C (90.5 °F).
Precipitation amounts to 30 mm (1.2 in), distributed over 2 days.
The day lasts on average 11 hours and 0 minutes.
There are on average 8 sunshine hours per day. So, the sun shines 72% of the time.
The average humidity is 69%.
The average wind speed is 4 kph (3 mph).

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In December, the weather in Dhaka is usually warm. The average temperature is of 21.2 °C (70 °F), with a minimum of 16.7 °C (62 °F) and a maximum of 25.7 °C (78.2 °F).
On the coldest nights of the month, the temperature usually drops to around 13.5 °C (56 °F).
On the warmest days of the month, the temperature usually reaches around 29 °C (84 °F).
Precipitation amounts to 12 mm (0.5 in), and all occurs in one day.
The day lasts on average 10 hours and 40 minutes. December 21, the winter solstice, is the shortest day of the year in the Northern Hemisphere.
There are on average 8 sunshine hours per day. So, the sun shines 73% of the time.
The average humidity is 72%. Hence, the air is normally humid.
The average wind speed is 5 kph (3 mph).