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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?✅
Fine — no significant rain
🌅 Evening outing?✅
Today: pleasant evening, 31° — beach or park
🌾 Spray crops?✅
Yes — Today 6 AM – 6 PM
🎣 Go to sea?⚠️
Caution — waves 1.3 m, gusts 28 km/h
| Time | Rain (%, mm) | Temp | Wind | RH | |
|---|---|---|---|---|---|
| 4 AM | ☁️ | 1% | 24° | 11 | 75% |
| 5 AM | ☁️ | 1% | 24° | 11 | 71% |
| 6 AM | 🌤️ | 1% | 24° | 12 | 70% |
| 7 AM | 🌤️ | 1% | 25° | 12 | 70% |
| 8 AM | ☁️ | 1% | 27° | 13 | 63% |
| 9 AM | ☁️ | 1% | 29°(31°) | 12 | 59% |
| 10 AM | ☁️ | 1% | 30°(33°) | 12 | 53% |
| 11 AM | ☁️ | 1% | 31°(35°) | 12 | 49% |
| 12 PM | 🌤️ | 1% | 32°(35°) | 13 | 47% |
| 1 PM | 🌤️ | 1% | 32°(35°) | 14 | 44% |
| 2 PM | ☁️ | 1% | 32°(34°) | 15 | 46% |
| 3 PM | ☁️ | 1% | 32° | 14 | 51% |
| 4 PM | ☁️ | 1% | 31°(34°) | 10 | 57% |
| 5 PM | 🌤️ | 1% | 29°(32°) | 7 | 63% |
| 6 PM | ☁️ | 1% | 27°(30°) | 7 | 64% |
| 7 PM | ☁️ | 1% | 26°(29°) | 8 | 70% |
| 8 PM | ☁️ | 1% | 26°(29°) | 10 | 73% |
| 9 PM | ☁️ | 1% | 26°(29°) | 9 | 75% |
| 10 PM | ☁️ | 1% | 26° | 14 | 70% |
| 11 PM | ☁️ | 1% | 25° | 13 | 68% |
| 12 AM | ☁️ | 1% | 25° | 12 | 71% |
| 1 AM | ☁️ | 1% | 24° | 12 | 74% |
| 2 AM | ☁️ | 1% | 24° | 10 | 76% |
| 3 AM | ☁️ | 1% | 24° | 10 | 74% |
| 4 AM | ☁️ | 1% | 24° | 11 | 66% |
| 5 AM | ☁️ | 1% | 24° | 10 | 62% |
| 6 AM | ☁️ | 1% | 24° | 12 | 61% |
| 7 AM | 🌤️ | 1% | 25° | 13 | 63% |
| 8 AM | ☁️ | 1% | 27° | 11 | 62% |
| 9 AM | 🌤️ | 1% | 29° | 13 | 56% |
| 10 AM | ☁️ | 1% | 31°(33°) | 17 |
“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 | 0 | 12.7 mm |
| GFS (USA)✓ used | 0 | 2.8 | 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.
Chengalpattu TNDRRA ARG0.0 km
3 h 0 mmSince 8:30 AM 0 mm24 h to 8:30 AM 0.8 mm
Chengalpattu0.6 km
24 h to 8:30 AM 1.0 mm
Mamandur4.5 km
Since 8:30 AM no reading24 h to 8:30 AM no reading
Highest in district (24 h): Thiruporur TNDRRA ARG 25 mm
📋 Full district report: by taluk, dams →TN-SMART · Tamil Nadu Disaster Risk Reduction Agency
| 53% |
| 11 AM | ☁️ | 1% | 32°(35°) | 14(33) | 51% |
| 12 PM | ☁️ | 1% | 32°(36°) | 14 | 51% |
| 1 PM | ☁️ | 1% | 32°(36°) | 15 | 52% |
| 2 PM | ☁️ | 1% | 32°(35°) | 15 | 52% |
| 3 PM | ☁️ | 1% | 32° | 16 | 53% |
| 4 PM | ☁️ | 1% | 31°(34°) | 12 | 60% |
| 5 PM | ☁️ | 1% | 29°(32°) | 14 | 62% |
| 6 PM | ☁️ | 1% | 29° | 15 | 61% |
| 7 PM | ☁️ | 1% | 29° | 17 | 62% |
| 8 PM | ☁️ | 4% | 28° | 17 | 61% |
| 9 PM | ☁️ | 4% | 28° | 17 | 67% |
| 10 PM | ☁️ | 4% | 27° | 17 | 69% |
| 11 PM | ☁️ | 1% | 27°(29°) | 18 | 73% |
| 12 AM | ☁️ | 1% | 26°(29°) | 16 | 83% |
| 1 AM | ☁️ | 1% | 26°(29°) | 15 | 88% |
| 2 AM | ☁️ | 1% | 25°(29°) | 16 | 88% |
| 3 AM | ☁️ | 1% | 25°(28°) | 15 | 88% |
| 0 |
| 13.8 mm |
| JMA (Japan) | 0 | 0 | 0 | 13.0 mm |
| GEM (Canada) | 0 | 0 | 0 | 17.9 mm |