The chart compares average monthly figures in temperature and precipitation levels in Kolkata over the course of a calendar year.
Overall, it is clear that summer is hotter than other seasons, while precipitation reaches its peak during the autumn. The rainfall changes significantly throughout the year, while the temperature remains relatively high and stable.
From January to May, both figures show a steady upward trend. Temperatures start at a minimum of 20°C in January and climb to a yearly high of approximately 30°C by May. Similarly, rainfall increases from 20 mm in January to 100 mm in May, marking the transition into the wetter season.
During the period from June to September, precipitation levels skyrocket, reaching a maximum of roughly 330 mm in July and remaining above 250 mm until September. In contrast, temperatures during this time stay steady, remaining at just under 30°C. The year ends with a sharp fall in rainfall, dropping to a low of about 10 mm in December, while temperatures decrease gradually to the starting levels of January.