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Contents
- The climate of Calcutta
- The best time to visit Calcutta
- The worst time to visit Calcutta
- Spring weather in Calcutta
- Summer weather in Calcutta
- Autumn weather in Calcutta
- Winter weather in Calcutta
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
The climate of Calcutta
Calcutta, Suriname, displays characteristics of the Af type of climate according to the Köppen climate classification. This type is typically referred to as a tropical rainforest climate. The geographical position of Calcutta close to the equator has a significant influence on its equable climate with minimal temperature fluctuation throughout the year and high amounts of precipitation.
Based on the monthly averages, temperatures in Calcutta remain relatively constant, with highs fluctuating between 28.5°C (83.3°F) and 31.9°C (89.4°F), and lows ranging from 23.8°C (74.8°F) to 24.8°C (76.6°F). Interestingly, Calcutta experiences its highest recorded temperatures of above 31°C (87.8°F) between the months of August and October, contrary to many tropical climates where the hottest period often coincides with the summer months.
In terms of precipitation, Calcutta is subject to an ample amount of rainfall throughout the year. Total rainfall varies anywhere from 34mm (1.34") in September to a significant 156mm (6.14") in May. Additionally, the number of days characterized by rainfall per month is also noteworthy, ranging from 13.5 days in September to a considerable 28.1 days in May.
A striking feature of Calcutta’s climate is its consistently high relative humidity, staying in the range of 77 to 84% all year round. Visibility, however, remains a static 10km (6.2mi) across all twelve months. The cloudiness levels also follow a roughly inverse relationship with the amount of sunshine received, peaking at close to 50% between February and May and diminishing to the low 20s in September and October.
Based on the monthly averages, temperatures in Calcutta remain relatively constant, with highs fluctuating between 28.5°C (83.3°F) and 31.9°C (89.4°F), and lows ranging from 23.8°C (74.8°F) to 24.8°C (76.6°F). Interestingly, Calcutta experiences its highest recorded temperatures of above 31°C (87.8°F) between the months of August and October, contrary to many tropical climates where the hottest period often coincides with the summer months.
In terms of precipitation, Calcutta is subject to an ample amount of rainfall throughout the year. Total rainfall varies anywhere from 34mm (1.34") in September to a significant 156mm (6.14") in May. Additionally, the number of days characterized by rainfall per month is also noteworthy, ranging from 13.5 days in September to a considerable 28.1 days in May.
A striking feature of Calcutta’s climate is its consistently high relative humidity, staying in the range of 77 to 84% all year round. Visibility, however, remains a static 10km (6.2mi) across all twelve months. The cloudiness levels also follow a roughly inverse relationship with the amount of sunshine received, peaking at close to 50% between February and May and diminishing to the low 20s in September and October.
The best time to visit Calcutta
Reaching a decision on the best time to visit Calcutta hinges largely on personal preference. However, for those who love basking in the sun, the period from August through October might be the best choice. Despite being the period with the highest temperatures, these months record the highest average sunshine duration, ranging from 9.3 to 9.6 hours per day. Additionally, these months showcase a drop in cloudiness levels as well as rainfall, ensuring an overall sunnier and drier trip.
The worst time to visit Calcutta
Alternatively, those who prefer to stay away from high temperatures and excessive rain might want to avoid the period between April to June. These months register significantly higher precipitation levels and a relatively higher number of rainy days per month. Especially May stands out as it features the highest total rainfall of 156mm (6.14") and the maximum number of rainfall days, 28.1, making it the rainiest month in Calcutta.
Spring weather in Calcutta
In Calcutta, the spring season, which extends from March to May, experiences temperatures between highs of 28.6°C (83.5°F) to 29.3°C (84.7°F) and lows within the scope of 24.1°C (75.4°F) to 24.7°C (76.5°F). This period is typified by a constantly high relative humidity of 80 to 84%. Rainfall occurs quite frequently, spanning from 75mm (2.95") in March to a peak of 156mm (6.14") in May.
Summer weather in Calcutta
The summer months from June to August in Calcutta highlight a marginal shift in temperature, with values extending from 30.1°C (86.2°F) to 31°C (87.8°F) for highs, and 24.2°C (75.6°F) to 24.1°C (75.4°F) for lows. Rainfall decreases over these months, leading to the driest conditions of the year in August with a total of 66mm (2.6") of rainfall. A fall in relative humidity from 84% in June to 79% in August can also be observed.
Autumn weather in Calcutta
Autumn, from September to November, manifests the highest temperatures of the year, reaching up to 31.9°C (89.4°F). The minimum temperatures remain almost steady, changing only slightly between 24.6°C (76.3°F) and 24.8°C (76.6°F). Despite the high temperatures, this period experiences the minimum rainfall throughout the year, hitting the lowest mark of 34mm (1.34") in September.
Winter weather in Calcutta
Winter in Calcutta, from December to February, is characterized by relatively milder temperatures with highs hovering between 28.8°C (83.8°F) and 29°C (84.2°F), and lows falling within 24.3°C (75.7°F) to 24°C (75.2°F). The rainy days increase again during this period, with rainfall figures growing from 119mm (4.69") in December to 86mm (3.39") in February. Meanwhile, relative humidity rises again to 81%, while cloudiness also witnesses a spike to over 50% in February.
Weather in January
January provides a calm start to the year in Calcutta, Suriname, featuring relatively consistent temperature and humidity values. A noteworthy fact for this month is an average high temperature of 28.8°C (83.8°F) and an average low of 23.8°C (74.8°F). Weather in January »
Weather in February
In February, the weather subtly starts to change in Calcutta as the dryness of January begins to fade. There is a minor increase in rainfall with 86mm (3.39") falling throughout the month. The heat remains nearly steady, making the city a welcoming place for visitors planning a winter holiday. Weather in February »
Weather in March
Calcutta's weather in March harks the onset of warmer days, a treat for beach lovers and sunbathers. The month sees a slight downgrade in rainfall to 75mm (2.95"), making it advisable to always carry an umbrella at this time. As the cloud% decreases slightly, longer periods of sunlight become more frequent. Weather in March »
Weather in April
April is characterized by a significant shift in Calcutta's weather patterns. The most noteworthy change is the sharp increase in rainfall, reaching up to 105mm (4.13"), indicating the start of the wet season. Concomitantly, both humidity and wind speed decrease slightly, leading to overall comfortable outdoor conditions. Weather in April »
Weather in May
In May, Calcutta witnesses the spell of the wet season reaching its peak, with rainfall volumes soaring to a maximum of 156mm (6.14"). The city gets drenched frequently, adding a unique charm to its lush green parks and gardens. The temperature maintains a steady curve, not varying drastically from the previous months. Weather in May »
Weather in June
June in Calcutta is an exhibition of temperamental weather with a mix of drizzles, attractive sunshine and relatively moderate temperatures. The city receives rainfall amounts of 137mm (5.39"), marginally less than recorded in May. Weather in June »
Weather in July
July is a month of transformation for Calcutta's weather, gradually shifting from the intense wet to the slightly drier season. A noticeable decrease in rainfall happens, with measurements dropping to 89mm (3.5"). As a direct compliment to the reducing showers, the city experiences an increase in sunny days, much to the pleasure of sun-lovers. Weather in July »
Weather in August
With the arrival of August, Calcutta, Suriname's weather becomes more predictable and pleasant. The average rainfall decreases further to 66mm (2.6"). The city's bustling life reinitiates as the wet season draws to a close. Indeed, August promises more sunlit days and fewer showers, perfect for taking advantage of the various city delights. Weather in August »
Weather in September
September weather in Calcutta witnesses the driest phase of the year with a significant reduction in rainfall to just 34mm (1.34"). The city basks in the prominence of the sun, ensuring optimal daylight conditions. Temperature highs and lows continue to be constant, allowing city dwellers and travelers to adapt quickly. Weather in September »
Weather in October
October brings a subtle change in the weather conditions of Calcutta. The rainfall, which was at its annual lowest in September, sees a slight increase reaching 38mm (1.5"). The city gleams under the bright sunlight with a steady increase in the UV index, requiring residents and visitors to optimize their sun protection measures. Weather in October »
Weather in November
Calcutta's weather in November increases the city's appeal among travelers. A notable uptick in rainfall is observed, with the monthly average moving up to 79mm (3.11"). Gradually closing toward the year-end, the temperature begins to lower slightly, providing a mild yet notable chilled sensation. Weather in November »
Weather in December
In December, Calcutta ready itself for the year-end festivities. The month experiences increased rainfall, reaching an average of 119mm (4.69"). The drop in temperatures awards the city with a refreshing break from the year-round heat, leading to an increase in outdoor activities. Weather in December »
[Resources]Frequently asked questions
How much does it rain in Calcutta?
In Calcutta, during the entire year, the rain falls for 268.5 days and collects up to 1061mm (41.77") of precipitation.
When is the lowest UV index in Calcutta?
The months with the lowest UV index in Calcutta are January, April, May and December, with an average maximum UV index of 6.
What month is the coldest in Calcutta?
February, with an average high of 28.5°C (83.3°F) and a low of 24°C (75.2°F), signifies the coldest month of the year in Calcutta.
What are the months with the least sunshine in Calcutta?
The months with the least sunshine are February and April, with an average of 6.7h of sunshine.
What is the month with the highest UV index in Calcutta?
February, March, June through November, with an average maximum UV index of 7, are months with the highest UV index in Calcutta.
What is the most humid month in Calcutta?
May and June, with an average relative humidity of 84%, are most humid months.
What is the rainiest month in Calcutta?
May is the month with the most rainfall. Rain falls for 28.1 days and accumulates 156mm (6.14") of precipitation.
When are the longest days in Calcutta?
With an average of 12h and 30min of daylight, June has the longest days of the year.
What is the least humid month in Calcutta?
The months with the lowest humidity in Calcutta are September and October, with an average relative humidity of 77%.
What is the driest month in Calcutta?
The month with the least rainfall is September, when the rain falls for 13.5 days and typically collects 34mm (1.34") of precipitation.
What month has the most sunshine in Calcutta?
September has the most sunshine of the year in Calcutta, Suriname, with an average of 9.6h of sunshine.
What month is the hottest in Calcutta?
October is the warmest month, exhibiting average temperatures of 31.9°C (89.4°F) at the peak and 24.8°C (76.6°F) at the base.
What is the month with the shortest days in Calcutta?
The month with the shortest days is December, with an average of 11h and 48min of daylight.
Is there Daylight Saving Time (DST) in Calcutta?
Calcutta does not observe Daylight Saving Time (DST). -03 timezone is used over the entire year.
Average temperature
Calcutta, Suriname
The warmest month (with the highest average high temperature) is October (31.9°C).
The month with the lowest average high temperature is February (28.5°C).
The months with the highest average low temperature are October and November (24.8°C).
The coldest month (with the lowest average low temperature) is January (23.8°C).
Average pressure
Calcutta, Suriname
- Average pressure in January:
1012mbar - Average pressure in February:
1011.8mbar - Average pressure in March:
1012mbar - Average pressure in April:
1011.9mbar - Average pressure in May:
1012.2mbar - Average pressure in June:
1012.8mbar
- Average pressure in July:
1012.8mbar - Average pressure in August:
1012.2mbar - Average pressure in September:
1011.5mbar - Average pressure in October:
1010.2mbar - Average pressure in November:
1009.4mbar - Average pressure in December:
1010.8mbar
The months with the highest atmospheric pressure are June and July (1012.8mbar).
The month with the lowest atmospheric pressure is November (1009.4mbar).
Average wind speed
Calcutta, Suriname
- Average wind speed in January:
14.1km/h - Average wind speed in February:
14.9km/h - Average wind speed in March:
14.7km/h - Average wind speed in April:
14km/h - Average wind speed in May:
13.2km/h - Average wind speed in June:
11.4km/h
- Average wind speed in July:
10.4km/h - Average wind speed in August:
10.9km/h - Average wind speed in September:
12.5km/h - Average wind speed in October:
12.9km/h - Average wind speed in November:
13.2km/h - Average wind speed in December:
13.7km/h
The windiest month (with the highest average wind speed) is February (14.9km/h).
The calmest month (with the lowest average wind speed) is July (10.4km/h).
Average humidity
Calcutta, Suriname
The months with the highest relative humidity are May and June (84%).
The months with the lowest relative humidity are September and October (77%).
Average rainfall
Calcutta, Suriname
- Average rainfall in January:
77mm - Average rainfall in February:
86mm - Average rainfall in March:
75mm - Average rainfall in April:
105mm - Average rainfall in May:
156mm - Average rainfall in June:
137mm
The wettest month (with the highest rainfall) is May (156mm).
The driest month (with the least rainfall) is September (34mm).
Average rainfall days
Calcutta, Suriname
- Average rainfall days in January:
25.5 days - Average rainfall days in February:
24.6 days - Average rainfall days in March:
25.6 days - Average rainfall days in April:
24.8 days - Average rainfall days in May:
28.1 days - Average rainfall days in June:
25.6 days
- Average rainfall days in July:
21.5 days - Average rainfall days in August:
17.8 days - Average rainfall days in September:
13.5 days - Average rainfall days in October:
15.2 days - Average rainfall days in November:
19.5 days - Average rainfall days in December:
26.8 days
The month with the highest number of rainy days is May (28.1 days).
The month with the least rainy days is September (13.5 days).
Average daylight / Average sunshine
Calcutta, Suriname
- Average daylight in January:
11h and 5min - Average daylight in February:
11h and 5min - Average daylight in March:
12h and 1min - Average daylight in April:
12h and 2min - Average daylight in May:
12h and 2min - Average daylight in June:
12h and 3min
- Average daylight in July:
12h and 2min - Average daylight in August:
12h and 2min - Average daylight in September:
12h and 1min - Average daylight in October:
12h and 0min - Average daylight in November:
11h and 5min - Average daylight in December:
11h and 5min
The month with the longest days is June (Average daylight: 12h and 30min).
The month with the shortest days is December (Average daylight: 11h and 48min).
- Average sunshine in January:
7h and 4min - Average sunshine in February:
6h and 4min - Average sunshine in March:
6h and 5min - Average sunshine in April:
6h and 4min - Average sunshine in May:
7h and 1min - Average sunshine in June:
8h and 1min
- Average sunshine in July:
8h and 5min - Average sunshine in August:
9h and 2min - Average sunshine in September:
9h and 4min - Average sunshine in October:
9h and 2min - Average sunshine in November:
8h and 5min - Average sunshine in December:
7h and 4min
The month with the most sunshine is September (Average sunshine: 9h and 36min).
The months with the least sunshine are February and April (Average sunshine: 6h and 42min).
Average sunshine days
Calcutta, Suriname
- Average sunshine days in January:
2 days - Average sunshine days in February:
1 days - Average sunshine days in March:
1.9 days - Average sunshine days in April:
1.8 days - Average sunshine days in May:
1 days - Average sunshine days in June:
3.3 days
- Average sunshine days in July:
8.3 days - Average sunshine days in August:
11.6 days - Average sunshine days in September:
14 days - Average sunshine days in October:
13.7 days - Average sunshine days in November:
8.2 days - Average sunshine days in December:
1.5 days
The month with the most sunshine days is September (14 days).
The months with the least sunshine days are February and May (1 days).
Average UV index
Calcutta, Suriname
The months with the highest UV index are February, March, June, July, August, September, October and November (UV index 7).
The months with the lowest UV index are January, April, May and December (UV index 6).
Average cloud cover
Calcutta, Suriname
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is September (Cloud cover 21).
Average visibility
Calcutta, Suriname
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Calcutta, Suriname
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