Kolkata Weather in August

Thinking of visiting Kolkata in August? Expect very high temperatures reaching 33°C (91°F) during the day, dropping to 27°C (81°F) at night. Heavy showers are common during the rainy season.

Rainfall in Kolkata in August

Kolkata is in the rainy season in August, with rain on around 16 days and an average of 312 mm (12 in). Showers during the rainy season tend to be heavy and can come down intensely. An umbrella is often not enough, so a poncho or waterproof jacket is a better choice.

Temperature in Kolkata in August

Daytime highs in Kolkata in August reach 33°C (91°F), with nights around 27°C (81°F). For most visitors, the main thing to prepare for is the heat during the day. Nights remain warm at around 27°C (81°F). For a more comfortable sleep, a cold shower before bed and a fan or air conditioning can make a big difference.

Sunshine in Kolkata in August

The month experiences a moderate amount of sunlight, with 118 hours of sunshine. This provides a nice balance between sunshine and rain.

Wind Speed in Kolkata in August

Wind speeds average 1 m/s (2 knots) during August. At this speed, you'll experience mostly light air movement that's just barely noticeable. As an average, some days will be completely calm while others have gentle breezes you can feel on your skin.

Average water temperature in August

With water at 28°C (82°F), you can expect warm, pleasant conditions for any water activity. There's no adjustment period — it feels comfortable straight away.

If you're looking for dry conditions and comfortable temperatures, August may not be the ideal month to visit Kolkata. Our weather planner can help you explore destinations with more pleasant weather conditions.

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For a detailed overview over the year and the best time to visit India, check out our Kolkata's climate page.

Kolkata Temperature in August

Min Temperature 27°C (81°F)  

Max Temperature 33°C (91°F)  

Water Temperature 28°C (82°F) *  

Chance of Rain 52%  

Precipitation 312 mm (12 in)  

Rainy days 16 days  

Humidity 83% *  

Windspeed 1 m/s (2 knots) *  

Sunshine 118 hours *  

Percentage Sunshine *  

* Data from: Calcutta, India (12 KM, 7 Miles).

Daily Historical Temperatures

49-year average (1976-2025)

Based on our historical records, temperatures in Kolkata typically stay consistent throughout August, with daily highs averaging around 33°C (91°F). Nights are warm, with lows around 27°C (81°F).

Average temperatures in August

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Daily Historical Precipitation

49-year average (1976-2025)

Average daily rainfall for each day of the month based on long-term records.

Average precipitation in August

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Historical weather for Kolkata in August

Browse day-by-day weather records for Kolkata spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Historical weather Temperatures Precipitation

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Kolkata historical weather extremes in August

Based on weather observations in Kolkata between 2006 and 2025, these are the recorded extremes during August.

• Kolkata recorded its highest August temperature of 37°C (99°F) on August 3, 2020.
• The lowest daytime temperature in August was 26°C (79°F), recorded on August 20, 2013.
• Nighttime temperatures dropped to 24°C (75°F) on August 16, 2019, marking the coldest August night on record.
• Peak precipitation in August occurred on August 7, 2011, when 172 mm (6.8 in) of precipitation was measured.

What to Wear in Kolkata in August

Warm weather calls for comfortable, breathable clothing in August. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Also bring a poncho, it will rain a lot! Waterproof everything you can. With water temperatures around 28°C (82°F), swimming conditions are excellent. Pack your swimsuit, goggles, and maybe some water shoes. Bring sunglasses since you'll have some sunny periods throughout the month

What To Do in Kolkata in August

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

7/10

Cycling

7/10

Walking

7/10

Camping

7/10

Outdoor sports

7/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit India, check out our Kolkata's climate page.

More climate data for Kolkata

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

See the full Kolkata climate overview or explore weather in India.