UV index is 8 today — high. Apply sunscreen before heading out, and consider a hat or shade during peak hours (roughly late morning to mid-afternoon).

Air quality is acceptable for most people. Unusually sensitive individuals should consider reducing prolonged or heavy outdoor exertion.

Morning before 10 AM or evening after 4 PM is the more comfortable window for outdoor activity today.

High humidity (80%) combined with the heat means it will feel more uncomfortable than the air temperature alone suggests — stay hydrated if you're active outside.

Nearby Regional Outlook

Kolkata Weather Radar

Live precipitation · Cloud cover · Wind

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Frequently Asked Questions

What is the hottest month in Kolkata?

The hottest month in Kolkata is typically April, with daytime highs averaging around 35.8°C (96°F), based on 10 years of historical weather data. Overnight lows during this period average near 25.5°C (78°F). Take extra precautions during this time stay hydrated and avoid strenuous outdoor activity in peak afternoon heat.

What is the coldest month in Kolkata?

The coldest month in Kolkata is typically January, with overnight lows averaging around 13.9°C (57°F) and daytime highs near 25.2°C (77°F), based on 10 years of historical weather data.

When does the rainy season start in Kolkata?

Kolkata has a clearly defined rainy season running roughly from July to September, based on 10 years of historical rainfall data. August is typically the wettest month, averaging about 392 mm of rain. Outside this window, rainfall is much lighter for the rest of the year.

What's the best time of year to visit Kolkata?

The best time to visit Kolkata is typically December to January, when daytime highs average a comfortable 25.5°C (78°F). Rainfall during this window averages around 23 mm, well below the 392 mm seen in August, the wettest month. This is based on 10 years of historical weather data.

Atmospheric Details

Wind

10 km/h

ESE · Light Breeze · Max 17 km/h

Humidity

80 %

High · feels muggy

UV Index

Very High

Visibility

10 km

Excellent

Pressure

1005 hPa

Stable

Dew Point

25°C

Very humid

Today vs Normal

31°C+1° above normal

The long-term average high for today is 30°C.

20 of the last 28 days with published data ran above normal.

It continues that pattern - today's forecast is also running above normal.

Red = above normal, blue = at or below · last 12 days

Air Quality

Moderate

Air quality is acceptable for most people. Unusually sensitive individuals should consider reducing prolonged or heavy outdoor exertion.

Health & Activity Advice

⚠ Take Precautions

UV index is 8 today — high. Apply sunscreen before heading out, and consider a hat or shade during peak hours (roughly late morning to mid-afternoon).

Air quality is acceptable for most people. Unusually sensitive individuals should consider reducing prolonged or heavy outdoor exertion.

Morning before 10 AM or evening after 4 PM is the more comfortable window for outdoor activity today.

High humidity (80%) combined with the heat means it will feel more uncomfortable than the air temperature alone suggests — stay hydrated if you're active outside.