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Chennai Weather Today

Live temperature, rain forecast, humidity, wind, 7-day predictions, AQI & radar map for Chennai, Tamil Nadu, India.

Source: Open-Meteo Global Meteorological Service
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29°C
Overcast
Feels Like: 33°C | High: 36°C | Low: 27°C
Updated: 01 Sep 2026, 07:57:15 PM IST
Temperature
29°C
Feels like 33°C
Humidity
75%
Relative Atmospheric Moisture
Wind Speed
12 km/h
Direction: SSW
UV Index
8.8
Solar Radiation Intensity
Cloud Cover
99%
Sky Coverage Percentage
Precipitation
0 mm
Intraday Rainfall Volume
Pressure
1007.5 hPa
Barometric Pressure
Dew Point
23.6°C
Condensation Threshold
⏰ 24-Hour Hourly Weather Forecast
12 AM
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29°C 💧 24%
01 AM
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29°C 💧 36%
02 AM
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28°C 💧 41%
03 AM
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28°C 💧 35%
04 AM
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27°C 💧 23%
05 AM
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27°C 💧 14%
06 AM
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27°C 💧 11%
07 AM
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28°C 💧 11%
08 AM
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29°C 💧 10%
09 AM
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32°C 💧 5%
10 AM
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33°C 💧 0%
11 AM
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35°C 💧 0%
12 PM
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36°C 💧 10%
01 PM
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36°C 💧 26%
02 PM
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32°C 💧 39%
03 PM
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30°C 💧 49%
04 PM
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32°C 💧 56%
05 PM
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31°C 💧 57%
06 PM
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30°C 💧 46%
07 PM
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30°C 💧 28%
08 PM
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30°C 💧 16%
09 PM
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30°C 💧 17%
10 PM
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29°C 💧 23%
11 PM
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29°C 💧 29%
📅 7-Day Weather Forecast
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Wed, 02 Sep Rain Showers
36° / 27° 💧 Rain 57%
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Thu, 03 Sep Light Drizzle
35° / 26° 💧 Rain 71%
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Fri, 04 Sep Light Drizzle
35° / 26° 💧 Rain 68%
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Sat, 05 Sep Light Drizzle
36° / 27° 💧 Rain 53%
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Sun, 06 Sep Thunderstorm
34° / 26° 💧 Rain 54%
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Mon, 07 Sep Light Drizzle
34° / 27° 💧 Rain 71%
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Tue, 08 Sep Light Drizzle
34° / 26° 💧 Rain 84%
📈 24-Hour Forecast Analytics Chart
🌿 Air Quality Index (AQI)
Moderate (AQI 68)
PM 2.5 20.4 µg/m³
PM 10 27.4 µg/m³
NO₂ (Nitrogen Dioxide) 8 µg/m³
SO₂ (Sulfur Dioxide) 7.9 µg/m³
🌧 Rain Forecast & Precipitation
Current Precipitation 0 mm
Chance of Rain Today 57%
Tomorrow's Rain Risk 71%
Rain Expectation Rain Likely
☀️ Sun & Moon Solar Cycles
Sunrise 05:57 AM Golden Hour: 06:06 PM
Sunset 06:19 PM Solar Noon: 12:15 PM
Moonrise & Moonset Rise: 08:15 PM Set: 07:30 AM
Moon Phase Waning Gibbous Illumination: 89%
⚠️ Official Weather Alerts & Cyclone Advisories
No Active Severe Weather Warnings No extreme weather alerts, cyclone advisories, or flood warnings reported for this location.
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EEAT Meteorological Telemetry Last Updated: August 21, 2026 at 06:22 PM IST
Author: Meteorological & Environmental Desk Reading Time: ~14 mins

Weather Today: Live Hourly Forecast, Rain Alerts, AQI & Atmospheric Telemetry in Chennai

Atmospheric weather conditions directly govern our daily lives—from deciding what to wear, planning daily commutes, and scheduling agricultural operations, to managing solar energy output, heavy transport logistics, and outdoor event planning in Chennai. Whether you are checking if you need an umbrella before leaving home, monitoring heatwaves during peak summer, tracking monsoon depression paths across coastal states, or checking urban Air Quality Index (AQI) levels before an early morning jog, accessing accurate weather today updates is an essential daily habit.

In India, weather patterns vary dramatically across diverse geographical zones—ranging from coastal maritime climates in Chennai and Mumbai to continental urban zones in Delhi, elevated plateau weather in Bengaluru, and heavy rainfall regions across the Western Ghats. Modern meteorology relies on supercomputer-powered Numerical Weather Prediction (NWP) models (such as ECMWF, GFS, and IMD ICON), Doppler weather radar networks, and geostationary satellites (INSAT-3DR) to deliver real-time atmospheric telemetry.

At NEWZEEFY Weather Portal, we deliver live, high-resolution meteorological telemetry. Our real-time weather engine updates hourly temperature forecasts, live radar maps, 7-day extended forecasts, and environmental health advisories. In this master guide, our weather desk breaks down everything you need to know about today's weather, forecasting science, climate metrics, and seasonal safety rules.


1. Meteorological Telemetry & Radar Tracking in Chennai

Modern weather forecasting is driven by supercomputers processing atmospheric physics equations using global and regional prediction models.

Verified Meteorological Telemetry Citation: Benchmark weather forecasts and atmospheric radar data are cross-verified with official reports from India Meteorological Department (IMD), World Health Organization (WHO), World Bank Climate Data, BSE India, and NSE India.

2. Cross-Asset Impact: Daily Commutes, Fuel Costs & Financial Portfolios

While tracking daily weather conditions in Chennai, staying informed across complementary asset classes helps balance travel and living expenditures. Track commuter fuel expenses on Petrol Price Today and Diesel Price Trends, check precious metal hedges on Gold Rate Today and Silver Rate Updates, or monitor equity benchmarks on BSE Sensex Live Index and NSE Nifty 50 Updates. For digital asset investments, explore the Crypto Market Telecast.

3. Outdoor Event Planning: Cultural Calendars & Panchangam Alignment

Before scheduling outdoor events, travel, or family functions, consult the Tamil Panchangam Today, daily horoscope insights on Daily Rasi Palan, festival dates on the Tamil Calendar Month Guide, and holiday schedules via Government Holidays & Festivals.

Advantages of Weather Monitoring
  • Proactive safety alerts for extreme rain, cyclones & heatwaves.
  • Optimizes daily commute planning & outdoor activity schedules.
  • Minimizes crop loss for agricultural producers.
Considerations & Disadvantages
  • Localized micro-climate shifts can occasionally defy global models.
  • Pop-up convective thunderstorms develop rapidly in summer.
  • Low-grade weather apps provide static daily highs without radar maps.
Frequently Asked Questions About Chennai Weather Today

Weather today in Chennai updates dynamically based on real-time atmospheric telemetry. Check our interactive dashboard above for real-time temperature, rain radar, AQI, and 7-day extended forecasts.

Probability of Precipitation indicates the percentage chance that measurable rain will fall at a specific location in Chennai within the forecast time window.

The Heat Index combines ambient air temperature and relative humidity in Chennai to determine how hot the air actually feels to the human body.

An AQI of 0-50 is Good, 51-100 is Moderate, 101-200 is Unhealthy for Sensitive Groups, 201-300 is Very Unhealthy, and 301-500+ is Severe.

PM2.5 refers to fine inhalable particles 2.5 micrometers or smaller, while PM10 refers to coarser particles 10 micrometers or smaller such as dust and pollen.

A UV Index of 3 or higher requires sun protection. At ratings of 6+ or 8+, apply SPF 30+ sunscreen, wear hats, and seek shade during peak solar hours.

A rapid drop in barometric pressure (below 1005 hPa) indicates an approaching low-pressure system, cloudiness, and high probability of rain in Chennai.

Doppler Weather Radar sends microwave signals into the atmosphere to measure rainfall intensity, cloud movement speed, and precipitation structure over Chennai.

Dew point measures the exact temperature air must be cooled to become saturated. Dew points above 21°C feel humid, while dew points above 24°C feel muggy in Chennai.

Surface weather telemetry updates every 15 minutes, while Doppler radar and satellite cloud maps refresh continuously for Chennai.

Intense morning ground heating causes rapid convective updrafts of moist air, triggering thermal thunderstorm clouds in the late afternoon.

The Southwest Monsoon (June–September) brings rain across mainland India, while the Northeast Monsoon (October–December) brings primary rainfall to Chennai and coastal South India.

When relative humidity exceeds 70% at high temperatures in Chennai, sweat cannot evaporate efficiently, reducing body cooling and raising heat stroke risk.

Sustained wind speeds above 40-50 km/h create rough sea conditions with high wave swells, triggering fisherman alerts along the Chennai coast.

Cloud cover measures the fraction of the sky covered by clouds in Chennai, expressed in percentage (0% Clear, 50% Partly Cloudy, 100% Overcast).

Heavy cloud cover and particulate pollution reduce solar irradiance in Chennai, decreasing solar panel power generation by 30% to 80%.

Urban heat islands occur in densely built areas of Chennai where concrete and asphalt absorb solar heat during the day and re-radiate it at night.

Stay indoors away from windows, avoid touching connected electrical appliances or plumbing pipes, and stay away from tall trees.

You can monitor 100% verified, live weather updates, hourly temperature graphs, rain alerts, and AQI reports for Chennai on NEWZEEFY.

Data is aggregated from official India Meteorological Department (IMD) radar feeds, INSAT-3DR satellite telemetry, ECMWF/GFS forecast models, and local AWS stations.
Meteorological Telemetry & EEAT Verification Statement
Live weather telemetry published on NEWZEEFY is retrieved from accredited India Meteorological Department (IMD) radar feeds, INSAT-3DR satellite telemetry, ECMWF/GFS global forecast models, and local automatic weather stations.
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