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Chittagong weather and climate in 2025
Day
31 °C
Night
26 °C
Sea
28 °C
Precipitation
496 mm
in month
Rainy days
20 days
in month
Daylight
13 hours
average
Sunshine
3 hours
average
Humidity
87 %
Day
31 °C
Night
26 °C
Sea
28 °C
Precipitation
496 mm
in month
Rainy days
20 days
in month
Daylight
13 hours
average
Sunshine
3 hours
average
Humidity
87 %
Overview: Chittagong
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Weather overview for Chittagong
Weather overview
Chittagong embraces a tropical monsoon climate with substantial seasonal variation in precipitation, humidity, and temperatures. Highs can peak at around 32 °C (90 °F) in May, while January nights are cooler with lows averaging 15 °C (58 °F). Rainfall dramatically fluctuates throughout the year, where June to September marks the monsoon with peak precipitation reaching 700 mm (27.56 in) in July. Although the dry months offer minimal rainfall, the winds can pick up, occasionally reaching speeds of 3 m/s.
January weather
January in Chittagong provides relief from heat with daytime temperatures reaching around 27 °C (80 °F). It's a period of clear skies, lower humidity at 70 %, and a comfortably cool night atmosphere with an average temperature of 15 °C (58 °F). Rain is a rare guest with an almost negligible 1 of rainfall.
February weather
While many places may still be in the clutches of winter, February in Chittagong is characterized by a gentle rise in temperatures to 29 °C (83 °F) and a subtle increase in sea temperatures to 23 °C (74 °F). The month also enjoys a modest boost in sunshine hours to 8 °C (47 °F) and remains largely dry with just 1 of rain.
March weather
March sees the mercury climbing higher in Chittagong, with daytime highs averaging 31 °C (88 °F), and the sun becomes a more persistent figure offering up to 8 hours of daylight. The city starts to feel the approach of the more humid months ahead, and evenings remain warm, ranging around 21 °C (69 °F).
April weather
April in Chittagong marks a significant increase in heat and humidity. Day temperatures often peak at 32 °C (89 °F), and the air gets moist with an average humidity of 74 %. The city braces for the wet season with rain frequency rising to an average of 6.
May weather
With May arrives the highest temperatures of the year in Chittagong, averaging 32 °C (90 °F), and ramping up humidity to 78 %. The onset of the wet season is unmistakable, delivering an average of 12 of precipitation.
June weather
June in Chittagong is defined by the full swing of the monsoon with an extraordinary 18 of rain. It marks a slight relief from May's intense heat, bringing temperatures down to an average daytime high of 31 °C (88 °F) as the city receives a generous amount of precipitation, totaling 572 mm (22.52 in).
July weather
July's weather remains entrenched in the monsoon season, with rainfall frequencies peaking at an overwhelming 21. The skies are overcast, and the air is heavy with moisture, as reflected in the 86 % humidity levels. The daily temperature stays fairly constant at around 31 °C (87 °F).
August weather
August in Chittagong stays on course with the rainy season, although precipitation slightly recedes to 20. Temperatures are consistent with 31 °C (88 °F) during the day, while nights offer little respite with humidity remaining high.
September weather
September in Chittagong signals the gradual retreat of the monsoon, with rain events dropping to 15. While still warm with average highs of 32 °C (89 °F), the city sees an increase in sunshine hours to 4 hours, hinting at better days ahead.
October weather
October in Chittagong marks the transition further away from the monsoon season, with rainfall occurrences diminishing to just 9. The city enjoys an increase in sunlit hours to 6 hours, and the warmth persists with a daytime high of 32 °C (89 °F).
November weather
As November arrives, Chittagong bids adieu to the rainy season with a scant 3 of precipitation, and daytime temperatures regress to a comfortable 30 °C (86 °F). Experience more enjoyable weather suitable for exploration and cultural immersion.
December weather
December brings Chittagong into the heart of the dry season, with an almost negligible 1 of rain. This month showcases a decrease in daytime temperatures to 28 °C (82 °F), allowing residents and visitors to revel in the warmth without the extremities of the earlier months.
FAQs
What should I expect from the weather in Chittagong in January?
January in Chittagong is pleasantly mild in terms of heat, with temperatures conducive to outdoor activities during the day and a need for light layers at night due to the cooler temperature of 15 °C (58 °F).
Can I expect warm weather in Chittagong in February?
Absolutely, February in Chittagong ushers in a gradual warmth with days feeling comfortably warm at an average high of 29 °C (83 °F)—ideal for a range of activities under the sun.
Is it comfortable to visit Chittagong in March?
March in Chittagong is fairly comfortable, albeit a bit warmer with average highs at 31 °C (88 °F), hinting at the hot season that's about to commence.
Will the humidity be high in Chittagong in April?
April certainly brings higher humidity levels to Chittagong, registering at about 74 %, so expect the air to feel heavier and stickier.
Is May the hottest month in Chittagong?
May indeed competes for the title of the hottest month in Chittagong, with daytime highs soaring to an average of 32 °C (90 °F) accompanied by substantial humidity.
How intense is the monsoon in Chittagong during June?
June's monsoon in Chittagong is intense with abundant rainfall, so expect heavy showers across an average of 18, making it one of the wettest months.
Will I see a lot of rain in Chittagong in July?
Yes, July is extraordinarily wet in Chittagong, with constant rainfall occurring over 21—floods and waterlogging can be common.
Is Chittagong still rainy in August?
Chittagong in August continues to experience frequent rainfall, although marginally less compared to July, with rain occurring on an average of 20.
Does the weather improve in Chittagong in September?
As we move through September, the weather in Chittagong starts improving with the monsoon tapering off, yet still expect a considerable amount of rainfall.
How often does it rain in Chittagong in October?
October in Chittagong sees a decline in rainfall frequency, with rain likely on only about 9, allowing for more predictable outdoor activities.
Is November a dry month in Chittagong?
Absolutely, November stands out as a relatively dry month in Chittagong, making it ideal for those who prefer to avoid the rain.
What's the chance of getting wet in Chittagong during December?
The chances of encountering rain in December are minimal, so it's the perfect month for engaging in outdoor and water-related activities without the worry of getting drenched.
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