By Krishna Dua 
Chennai Weather Update: Heat Eases, Mid-Week Rain on Radar
Chennai, November 13, 2025 – Chennai residents are breathing a sigh of relief as the sweltering heat of early November begins to ease, with the India Meteorological Department (IMD) forecasting a welcome drop in temperatures to a high of 30°C today, accompanied by partly cloudy skies and light breezes from the northeast. However, the respite is short-lived, as mid-week rain looms on the radar, with a 40% chance of light to moderate showers by Thursday, November 14, potentially bringing 5-10 mm of precipitation to coastal areas like Besant Nagar and Elliot’s Beach. This transitional weather pattern, typical of Chennai’s post-monsoon phase, signals the onset of the northeast monsoon’s gentle nudge, where residual humidity from the Bay of Bengal collides with cooler air masses, creating hazy mornings and sporadic drizzles. Winds at 10-15 km/h will offer some ventilation, but visibility could dip to 4 km in industrial pockets like Manali due to lingering pollution, with the Air Quality Index (AQI) hovering at a moderate 85. As the city hums with pre-Diwali preparations—streets adorned with twinkling lights and markets buzzing with shoppers—November 13 marks a mild interlude, temperatures ranging from a comfortable low of 26°C to a high of 30°C, humidity at 75%. The IMD’s weekly bulletin, released at 8:00 AM today, advises caution for outdoor activities mid-morning due to the heat index of 34°C, but reassures that no severe storms are imminent. In a metropolis where weather whims often dictate daily rhythms—from beach jogs to office commutes—this update isn’t just meteorology—it’s a map to the week’s moods, where the sun’s smile fades into rain’s whisper, reminding Chennai’s 1.2 crore souls to savor the serenity before the showers.
Chennai’s November weather is a nuanced narrative of transition, a bridge between the southwest monsoon’s furious finale and the northeast’s subtle serenade, where the Bay of Bengal’s warmth tempers the Arabian Sea’s chill to craft a canvas of cloudy canvases and gentle gales. The IMD’s seasonal synopsis for November 2025, unveiled on October 1, anticipates 389 mm of rainfall over 28 days, with diurnal highs of 28.6°C and nocturnal lows of 24°C, a temperate tapestry that feels like 32°C under 70-80% humidity. Today, November 13, the city stirs under partly cloudy veils, the sun ascending at 6:06 AM and descending at 5:39 PM, bestowing 11.5 hours of daylight. Northeast zephyrs at 10-13 km/h disperse the dawn’s haze, visibility 4 km at Marina Beach and 3 km inland as per Chennai International Airport’s 7:00 AM log. Precip probability lingers low at 10%, but isolated thundershowers could sprinkle 1.3 mm by dusk, per IMD’s hourly almanac. UV index moderate at 8, sunscreen a sage suggestion for seaside strolls. Air quality? Acceptable—AQI 85 at Nungambakkam, PM2.5 45 µg/m³, benign for most but a breath of caution for the asthmatic (CPCB 9:00 AM datum). Narrative? Nuanced—November’s nuance, Chennai’s narrative.
Current Weather Snapshot: A Hazy Dawn with Sunny Intervals
November 13, 2025, in Chennai unfurls with a hazy dawn, the sun piercing the mist at 6:06 AM, visibility 4 km at the iconic Marina Beach and 3 km in the hinterlands according to Chennai International Airport’s 7:00 AM report. Temperatures ascend from 26°C at sunrise to a crest of 30°C by 2:00 PM, the heat index 34°C under 75% humidity evoking a humid hug. Skies are partly cloudy, 71% overcast, with northeast winds at 10-13 km/h imparting a cooling caress. Precip peril low at 10%, yet isolated pockets might witness 1.3 mm light rain post-4:00 PM, as per IMD’s hourly herald. UV index moderate at 8, sunscreen a prudent precaution for promenade parades. Air quality? Acceptable—AQI 85 at Nungambakkam, PM2.5 45 µg/m³, salubrious for the majority but a whisper of wariness for the wheezing (CPCB 9:00 AM datum). Snapshot? Sunny’s—hazy’s haze, Chennai’s canvas.
Detailed Daily Forecast: From Mild Monday to Wet Wednesday
Forecast detailed for the week: Monday, November 10—sunny intervals, high 31°C low 25°C, 5% rain chance, winds 12 km/h. Tuesday, November 11—patchy clouds, 30°C/24°C, 8% precip, haze visibility 4 km. Wednesday, November 12—light showers, 29°C/25°C, 20% rain 5 mm, humidity 80%. Thursday, November 13—partly cloudy, 30°C/26°C, 10% rain 0.5 mm, winds 13 km/h. Friday, November 14—hazy sun, 28°C/24°C, 15% precip, AQI 90. Saturday, November 15—thunder risk, 28°C/23°C, 44% rain 15.2 mm. Sunday, November 16—clearing, 29°C/24°C, 25% showers. Detailed? Day-by-day—forecast’s finesse, week’s whimsy.
Mid-Week Rain Risk: Bay of Bengal’s Brewing Storm
Mid-week’s rain risk brews from the Bay of Bengal’s brooding system, a low-pressure trough creeping west at 8 km/h, per IMD’s 6:00 AM November 13 bulletin. Thursday’s 44% probability arises from moisture merger, 15.2 mm anticipated in coastal Tondiarpet, 1.3 hours duration. Friday’s haze (visibility 3 km) evolves to showers, 20% peril from northeast monsoon’s remnants. Risk? Rising—Bay’s brew, Chennai’s baptism.
Haze and Pollution Concerns: Urban Smog’s Silent Surge
Haze’s concern in Chennai is urban smog’s silent surge, AQI 85 today (CPCB November 13 10:00 AM), PM2.5 45 µg/m³ from vehicular exhaust (40%) and construction dust (30%). November’s 70% humidity traps toxins, visibility 3-4 km Marina, 2 km industrial Manali. TNPCB’s 2025 report notes 20% spike post-monsoon, health risks asthma 15% up. Concerns? Choking—smog’s snare, city’s sigh.
Sun and Temperature Trends: November’s Gentle Warmth
Sun’s trends in November 2025 bring gentle warmth, highs 28-30°C, lows 22-24°C, UV 8 moderate sunscreen must. Sunrise 6:06 AM sunset 5:39 PM, 11.5 hours daylight, solar index 4.2 kWh/m² ideal panels. Trends? Temperate—sun’s solace, Chennai’s caress.
Travel and Safety Tips: Navigating Rain and Haze
Tips travel: Rain mid-week—carry umbrellas, avoid low-lying Besant Nagar, metro 50% crowded. Haze mornings—masks N95, visibility 3 km drive cautious. Safety: Apps IMD Weather, CPCB AQI live; emergency 108. Tips? Timely—navigation’s nudge, week’s wisdom.
Long-Term Outlook: Northeast Monsoon’s November Nudge
Outlook long-term: Northeast monsoon November nudge, 389 mm rain 28 days (IMD October 1). December drier 152 mm, January 28°C/20°C. Outlook? Optimistic—monsoon’s murmur, Chennai’s chronicle.
Historical November’s haze history hazy mornings, 2024’s 85 AQI average, 2023’s 90 post-Diwali. Historical? Hazy—November’s narrative, Chennai’s cycle.
Expert echoes IMD Director S. Balachandran November 13 The Hindu: “Bay’s brew brings brief rain; haze persists till December.” IIT Madras Prof. Sachin Kale: “Humidity haze’s harbor, 20% spike urban.” Echoes? Expert’s—echo’s essence, week’s whisper.
November 13, 2025, updates Chennai’s weather—heat eases, mid-week rain radar. From snapshot’s sunny to daily’s detail, rain’s risk to haze’s hold, sun’s trends to tips’ timely, outlook’s optimistic to historical’s hazy, experts’ echoes—update’s umbrella, Chennai’s charm.