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Numbers: today's rain (mm)
Next 2 hours · radar nowcast
Nothing moving your way on IMD’s latest picture (pictures arrive 30–45 min late, so showers forming since then don’t show)
Approximate: rain cells grow and fade as they move
Sources
Radar 3:41 AM · Lightning 4:01 AM · Gauges to 04:30 AM · Models 4:33 AM
👥 Is it raining where you are right now?
No rain expected in the next 24 hours
0 mm expected in 24 hours · 1% chance of rain today
☀️ Dry spell: 4 AM – 3 AM
☂️ Umbrella?✅
Not needed — low chance of rain
👕 Dry clothes outside?✅
Yes — Today 8 AM – 5 PM
🏍️ Two-wheeler ride?⚠️
Carry a raincoat and ride slowly
🌅 Evening outing?✅
Today: pleasant evening, 31° — beach or park
🌾 Spray crops?✅
Yes — Today 11 AM – 6 PM
🎣 Go to sea?⚠️
Caution — waves 1.7 m, gusts 37 km/h
| Time | Rain (%, mm) | Temp | Wind | RH | |
|---|---|---|---|---|---|
| 4 AM | ☁️ | 1% | 25°(28°) | 10 | 82% |
| 5 AM | 🌙 | 1% | 25°(28°) | 10 | 82% |
| 6 AM | 🌤️ | 1% | 24°(27°) | 10 | 79% |
| 7 AM | ☁️ | 1% | 26°(29°) | 8 | 78% |
| 8 AM | ☁️ | 1% | 28°(31°) | 7 | 69% |
| 9 AM | 🌤️ | 1% | 29° | 14(32) | 54% |
| 10 AM | ☁️ | 1% | 30° | 15(37) | 49% |
| 11 AM | 🌤️ | 1% | 31°(34°) | 13(36) | 48% |
| 12 PM | ☁️ | 1% | 32°(35°) | 13(32) | 46% |
| 1 PM | ☁️ | 1% | 32°(35°) | 13(32) | 44% |
| 2 PM | ☁️ | 1% | 32° | 12(31) | 44% |
| 3 PM | ☁️ | 1% | 32°(34°) | 9 | 49% |
| 4 PM | ☁️ | 1% | 31°(34°) | 6 | 57% |
| 5 PM | ☁️ | 1% | 29°(34°) | 4 | 66% |
| 6 PM | ☁️ | 1% | 28°(32°) | 5 | 67% |
| 7 PM | ☁️ | 1% | 28°(31°) | 8 | 69% |
| 8 PM | ☁️ | 1% | 27°(30°) | 11 | 65% |
| 9 PM | ☁️ | 1% | 27° | 11 | 58% |
| 10 PM | ☁️ | 1% | 26° | 12 | 61% |
| 11 PM | ☁️ | 1% | 25° | 13 | 65% |
| 12 AM | ☁️ | 1% | 25° | 13 | 71% |
| 1 AM | ☁️ | 1% | 25° | 12 | 71% |
| 2 AM | ☁️ | 1% | 25° | 12 | 66% |
| 3 AM | ☁️ | 1% | 24° | 10 | 63% |
| 4 AM | ☁️ | 1% | 24° | 10 | 62% |
| 5 AM | ☁️ | 1% | 24° | 9 | 63% |
| 6 AM | ☁️ | 1% | 25° | 11 | 63% |
| 7 AM | ☁️ | 1% | 26° | 11 | 63% |
| 8 AM | ☁️ | 1% | 28°(30°) | 11 | 64% |
| 9 AM | ☁️ | 1% | 29°(31°) | 13 | 58% |
| 10 AM | ☁️ | 1% | 31° |
“Chance” = how often it actually rained on days when this many models forecast rain. Even when every model says rain, it rained on only about 2 in 3 days.
A consensus of 9 global weather models. Every day we check which models were right in Tamil Nadu against TN-SMART gauges and lean on those (last 25 days).
| Today | Tomorrow | Thu, 29 Oct | Recent avg. error | |
|---|---|---|---|---|
| ECMWF AI✓ used | 0 | 0.6 | 0 | 12.7 mm |
| GFS (USA)✓ used | 0 | 0 | 0 | 11.5 mm |
| ICON (Germany)✓ used | 0 | 0 | 0 | 9.5 mm |
| UK Met Office✓ used | 0 | 0 | 0 | 12.2 mm |
| Météo-France✓ used | 0 | 0 | 0 | 12.3 mm |
| CMA (China)✓ used | 0 | 0 | 0 | 12.5 mm |
| ECMWF (Europe) | 0 | 0 |
No weatherman has made a specific forecast for this district for today or tomorrow yet.
Each forecast is checked the next morning against TN-SMART gauges (last 30 days). Claude AI reads the posts to pick out the forecasts; open a post for the full picture.
Chennai collectorate building0.0 km
24 h to 8:30 AM 4.0 mm
Kasimedu0.8 km
24 h to 8:30 AM 2.6 mm
Z 04 Tondiarpet (W 42)0.9 km
Since 8:30 AM 0 mm24 h to 8:30 AM 1.8 mm
Highest in district (24 h): Kathivakkam 25 mm
📋 Full district report: by taluk, dams →TN-SMART · Tamil Nadu Disaster Risk Reduction Agency
| 13(34) |
| 54% |
| 11 AM | ☁️ | 1% | 31°(35°) | 11(32) | 53% |
| 12 PM | ☁️ | 1% | 31°(35°) | 13(32) | 54% |
| 1 PM | ☁️ | 1% | 32°(36°) | 12(32) | 54% |
| 2 PM | ☁️ | 1% | 32°(35°) | 12(31) | 54% |
| 3 PM | ☁️ | 1% | 32°(35°) | 12 | 55% |
| 4 PM | ☁️ | 1% | 31°(35°) | 10 | 61% |
| 5 PM | ☁️ | 1% | 30°(34°) | 11 | 65% |
| 6 PM | ☁️ | 1% | 29°(32°) | 13 | 65% |
| 7 PM | ☁️ | 1% | 29°(31°) | 11 | 65% |
| 8 PM | ☁️ | 1% | 28°(31°) | 9 | 70% |
| 9 PM | ☁️ | 1% | 28°(31°) | 11 | 67% |
| 10 PM | ☁️ | 1% | 27°(30°) | 11 | 70% |
| 11 PM | ☁️ | 1% | 27°(30°) | 10 | 73% |
| 12 AM | ☁️ | 1% | 26°(29°) | 12 | 75% |
| 1 AM | ☁️ | 1% | 26°(28°) | 14 | 78% |
| 2 AM | ☁️ | 1% | 25°(29°) | 14 | 84% |
| 3 AM | ☁️ | 1% | 25°(29°) | 12 | 87% |
| 0 |
| 13.8 mm |
| JMA (Japan) | 0 | 0 | 0 | 13.0 mm |
| GEM (Canada) | 0 | 1.0 | 0 | 17.9 mm |