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Weather in Chennai — today

Tomorrow Day after tomorrow 3 days Week 14 days Month forecast Weather archive

Now in Chennai

☁️

+33°

Overcast

Feels like +39° · humidity 59%

Today 12.9: +34° / +26°

🕐 11:55

Wind

11 km/h

UV index

Air (AQI)

80 · Poor

Precipitation

66%

Humidity

59%

Pressure

1008 hPa

Sunrise / sunset

05:58 / 18:12

Sea temperature

🌊 +30°

👕 What to wear today

Hot — light breathable clothing, a hat, plenty of water.

☂️ Take an umbrella💧 Bring waterFeels warmer by 6°

Weather for an activity:

🎣 fishing 🏖️ the beach 🏃 a run 📸 a photo shoot 🚶 a walk

Detailed weather information for Chennai

Today, 12 September, Saturday, in Chennai (India): partly cloudy, hot. During the day the air will warm up to +34°, at night around +26°. Due to high humidity it feels like +39°. UV is high (index 6) — sunscreen will come in handy in the sun. Wind up to 14 km/h. High chance of rain — be sure to take an umbrella or a raincoat. Dress as lightly as possible, wear a hat, apply sunscreen and keep water with you. The sea has warmed up to +30° — great for swimming. The sun will rise at 05:58 and set at 18:12 — daylight lasts 12 hours.

Hourly weather in Chennai

💧 The bars at the bottom show the hourly precipitation probability. Shaded areas of the chart are the dark hours (before sunrise 🌅 and after sunset 🌇).

Weather in Chennai for 14 days

Tap a day to expand it by time of day and open the full forecast. The bar shows the range from the night low (left) to the day high (right).

▶

Today 12.9

☁️

💧 66%

+26° +34°

Morning

☁️

+29°

Day

☁️

+34°

Evening

🌇

+32°

Night

🌙

+26°

Overcast · precipitation 66% · wind up to 14 km/h.
☀️ Very hot. Drink more water, avoid the midday sun, sunscreen is needed.

▶

Tomorrow 13.9

⛈️

💧 63%

+25° +32°

Morning

⛅

+28°

Day

⛈️

+32°

Evening

🌇

+29°

Night

🌙

+25°

Thunderstorm · precipitation 63% · wind up to 18 km/h.
☀️ Very hot. Drink more water, avoid the midday sun, sunscreen is needed.

▶

Mon 14.9

⛈️

💧 45%

+26° +31°

Morning

⛈️

+28°

Day

⛈️

+31°

Evening

🌇

+30°

Night

🌙

+26°

Thunderstorm · precipitation 45% · wind up to 12 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Tue 15.9

🌦️

💧 46%

+25° +31°

Morning

🌦️

+27°

Day

🌦️

+31°

Evening

🌇

+30°

Night

🌙

+25°

Drizzle · precipitation 46% · wind up to 13 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Wed 16.9

🌦️

💧 61%

+25° +33°

Morning

🌦️

+28°

Day

🌦️

+33°

Evening

🌇

+31°

Night

🌙

+25°

Drizzle · precipitation 61% · wind up to 14 km/h.
☀️ Very hot. Drink more water, avoid the midday sun, sunscreen is needed.

▶

Thu 17.9

⛈️

💧 53%

+25° +33°

Morning

⛈️

+28°

Day

⛈️

+33°

Evening

🌇

+31°

Night

🌙

+25°

Thunderstorm · precipitation 53% · wind up to 13 km/h.
☀️ Very hot. Drink more water, avoid the midday sun, sunscreen is needed.

▶

Fri 18.9

🌦️

💧 71%

+25° +34°

Morning

🌦️

+28°

Day

🌦️

+34°

Evening

🌇

+32°

Night

🌙

+25°

Rain showers · precipitation 71% · wind up to 17 km/h.
☀️ Very hot. Drink more water, avoid the midday sun, sunscreen is needed.

▶

Sat 19.9

🌦️

💧 79%

+24° +33°

Morning

🌦️

+27°

Day

🌦️

+33°

Evening

🌇

+31°

Night

🌙

+24°

Drizzle · precipitation 79% · wind up to 17 km/h.
☀️ Very hot. Drink more water, avoid the midday sun, sunscreen is needed.

▶

Sun 20.9

⛈️

💧 77%

+25° +32°

Morning

⛈️

+28°

Day

⛈️

+32°

Evening

🌇

+30°

Night

🌙

+25°

Thunderstorm · precipitation 77% · wind up to 9 km/h.
☀️ Very hot. Drink more water, avoid the midday sun, sunscreen is needed.

▶

Mon 21.9

🌦️

💧 82%

+25° +31°

Morning

🌦️

+27°

Day

🌦️

+31°

Evening

🌇

+30°

Night

🌙

+25°

Drizzle · precipitation 82% · wind up to 11 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Tue 22.9

⛈️

💧 74%

+24° +30°

Morning

⛈️

+26°

Day

⛈️

+30°

Evening

🌇

+29°

Night

🌙

+24°

Thunderstorm · precipitation 74% · wind up to 11 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Wed 23.9

☁️

💧 63%

+26° +32°

Morning

☁️

+28°

Day

☁️

+32°

Evening

🌇

+31°

Night

🌙

+26°

Overcast · precipitation 63% · wind up to 11 km/h.
☀️ Very hot. Drink more water, avoid the midday sun, sunscreen is needed.

▶

Thu 24.9

☁️

💧 49%

+26° +32°

Morning

☁️

+28°

Day

☁️

+32°

Evening

🌇

+31°

Night

🌙

+26°

Overcast · precipitation 49% · wind up to 11 km/h.
☀️ Very hot. Drink more water, avoid the midday sun, sunscreen is needed.

▶

Fri 25.9

☁️

💧 47%

+26° +32°

Morning

☁️

+28°

Day

☁️

+32°

Evening

🌇

+31°

Night

🌙

+26°

Overcast · precipitation 47% · wind up to 8 km/h.
☀️ Very hot. Drink more water, avoid the midday sun, sunscreen is needed.

🗺️ Precipitation radar

Precipitation radar (RainViewer) over a clean base map — updates every 5–10 minutes. Colours show nearby precipitation; if there is none, the map is simply clear — that is normal. Zoom with + / −.

Rain intensity:lightmoderateheavy

🎯 What to do in this weather — indices of the day

Comfort score from 0 (bad) to 100 (excellent), calculated from the day's weather. For “rain” and “UV” a percentage/risk level is shown.

🏖️ Beach

22 / 100

for sea and sun · So-so

🏊 Swimming

10 / 100

water 30° · Bad

🏃 Running

0 / 100

comfort for running · Bad

🧴 UV

54%

high · moderate

☂️ Rain

66%

likely · high

✨ Stars

42 / 100

evening visibility · Average

🧺 Laundry drying

9 / 100

will dry outside · Bad

🚗 Car wash

16 / 100

better to wait · Bad

🌫️ Air quality

Poor air

European AQI

PM2.5: 21PM10: 28O₃: 160NO₂: 4

People with allergies or asthma should reduce time outdoors.

🌅 Sun, moon and sea

Sunrise

05:58

Sunset

18:12

Golden hour

17:44

Daylight

12 h (-1 min vs yesterday)

Sea temperature

+30°

🌊 slight, waves 0.8 m.

Chennai climate by month

Long-term averages. Hover over a bar for details. The forecast for a specific month is a combination of the climate normal and the model forecast for the coming weeks.

+28°

+21°

Jan

+30°

+21°

Feb

+33°

+23°

Mar

+34°

+26°

Apr

+36°

+28°

May

+36°

+28°

Jun

+34°

+27°

Jul

+33°

+26°

Aug

+33°

+26°

Sep

+31°

+25°

Oct

+28°

+23°

Nov

+27°

+22°

Dec

swipe sideways →

Bar color shows temperature:frostcoolcomfortablewarmhot— best months to visit

Month	Day	Night	Sea	Precipitation	What to pack and what makes the month notable (events, nuances)
January	+28°	+21°	+27°	15 mm	A comfortable month: +28° by day without exhausting heat. 😊 light summer clothing. Water at +27° — great for swimming. Weather-wise, one of the three best months to visit.
February	+30°	+21°	+28°	7 mm	Warm and comfortable: +30° by day, +21° at night. 😊 light summer clothing. Water at +28° — great for swimming. One of the driest months — rain is very unlikely.
March	+33°	+23°	+29°	9 mm	Up to +33° by day — hot, yet not muggy; mornings and evenings are pleasant. ☀️ water and sunscreen. Water at +29° — great for swimming. Weather-wise, one of the three best months to visit.
April	+34°	+26°	+30°	15 mm	A hot, dry month: +34° daytime, warm pleasant evenings. ☀️ water and sunscreen. The sea is +30° — like a warm bath.
May	+36°	+28°	+31°	38 mm	Hot (+36° by day) but dry — manageable with a sensible schedule. ☀️ water and sunscreen. The sea is +31° — like a warm bath. This is the hottest month of the year in Chennai.
June	+36°	+28°	+31°	65 mm	Up to +36° by day — hot, yet not muggy; mornings and evenings are pleasant. Frequent rain (65 mm over the month) — keep indoor backup plans. ☀️ water and sunscreen. The sea is +31° — like a warm bath. The longest daylight hours of the year — more time for everything.
July	+34°	+27°	+30°	70 mm	A hot, dry month: +34° daytime, warm pleasant evenings. One of the wettest months (70 mm): downpours can derail plans. ☀️ water and sunscreen. The sea is +30° — like a warm bath.
August	+33°	+26°	+30°	97 mm	Hot (+33° by day) but dry — manageable with a sensible schedule. It's a rainy month (97 mm) — an umbrella is a must. ☀️ water and sunscreen. The sea is +30° — like a warm bath.
September	+33°	+26°	+30°	108 mm	Up to +33° by day — hot, yet not muggy; mornings and evenings are pleasant. Frequent rain (108 mm over the month) — keep indoor backup plans. ☀️ water and sunscreen. The sea is +30° — like a warm bath.
October	+31°	+25°	+30°	214 mm	A comfortable month: +31° by day without exhausting heat. One of the wettest months (214 mm): downpours can derail plans. 😊 light summer clothing. The sea is +30° — like a warm bath.
November	+28°	+23°	+29°	226 mm	Warm and comfortable: +28° by day, +23° at night. It's a rainy month (226 mm) — an umbrella is a must. 😊 light summer clothing. Water at +29° — great for swimming. Statistically the wettest month of the year.
December	+27°	+22°	+27°	117 mm	Gentle warmth — about +27° daytime, great walking weather. Frequent rain (117 mm over the month) — keep indoor backup plans. 😊 light summer clothing. Water at +27° — great for swimming. This is the coldest month of the year.

When to visit Chennai

✅ Recommended time to visit

🌟 Best time: January, February, March

Daytime air+28…+33°

Sea temperature+27…+29°

Precipitationrare

Why: comfortable +28…+33° by day, little rain, warm sea (+27…29°).

⚠️ Doable, with caveats

🌤️ Shoulder season: April, May, June, July, August, December

Daytime air+27…+36°

Sea temperature+27…+31°

Precipitationoften

Why: noticeable rain risk (15–117 mm/month) — pack an umbrella and backup plans.

🔴 Not the best time

🌤️ Shoulder season: September, October, November

Daytime air+28…+33°

Sea temperature+29…+30°

Precipitationoften

Why: the rainy season (108–226 mm/month) — downpours almost daily.

Bottom line: the best time to visit Chennai is January – March, and the most comfortable months are January, February, March. The toughest months to visit are September, October, November: frequent rain.