or pick a district
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 · Testing: the radar nowcast is still being checked against what happened
Sources
Radar 4:40 AM · Lightning 5:01 AM · Gauges to 04:30 AM · Models 5:20 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: 5 AM – 4 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?✅
Calm sea — waves 1.1 m
| Time | Rain (%, mm) | Temp | Wind | RH | |
|---|---|---|---|---|---|
| 5 AM | ☁️ | 1% | 24°(29°) | 8 | 98% |
| 6 AM | ☁️ | 1% | 24°(29°) | 9 | 97% |
| 7 AM | 🌤️ | 1% | 26°(31°) | 7 | 92% |
| 8 AM | 🌤️ | 1% | 28°(33°) | 9 | 84% |
| 9 AM | ☁️ | 1% | 30°(34°) | 10 | 73% |
| 10 AM | 🌤️ | 1% | 31°(35°) | 10 | 61% |
| 11 AM | ☁️ | 1% | 32°(36°) | 10 | 54% |
| 12 PM | ☁️ | 1% | 32°(36°) | 10 | 51% |
| 1 PM | ☁️ | 1% | 32°(35°) | 10 | 50% |
| 2 PM | ☁️ | 1% | 32°(34°) | 9 | 49% |
| 3 PM | ☁️ | 1% | 32°(34°) | 9 | 53% |
| 4 PM | ☁️ | 1% | 31°(34°) | 7 | 62% |
| 5 PM | 🌤️ | 1% | 29°(33°) | 6 | 68% |
| 6 PM | ☀️ | 1% | 27°(31°) | 9 | 72% |
| 7 PM | ☁️ | 1% | 27°(30°) | 11 | 75% |
| 8 PM | ☁️ | 1% | 27°(29°) | 12 | 74% |
| 9 PM | ☁️ | 1% | 26°(28°) | 12 | 76% |
| 10 PM | ☁️ | 1% | 25°(28°) | 17 | 83% |
| 11 PM | ☁️ | 1% | 26°(29°) | 17 | 88% |
| 12 AM | ☁️ | 1% | 25°(29°) | 17 | 90% |
| 1 AM | ☁️ | 1% | 25°(29°) | 16 | 91% |
| 2 AM | ☁️ | 1% | 25°(29°) | 13 | 92% |
| 3 AM | ☁️ | 1% | 25°(29°) | 11 | 92% |
| 4 AM | ☁️ | 1% | 25°(28°) | 12 | 90% |
| 5 AM | ☁️ | 1% | 24°(27°) | 12 | 89% |
| 6 AM | ☁️ | 1% | 24°(27°) | 12 | 89% |
| 7 AM | 🌤️ | 1% | 25°(29°) | 11 | 86% |
| 8 AM | 🌤️ | 1% | 27°(31°) | 12 | 82% |
| 9 AM | 🌤️ | 1% | 29°(34°) | 12 | 76% |
| 10 AM | 🌤️ | 1% | 31°(36°) | 12 | 67% |
“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 | 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.
Chidambaram0.0 km
24 h to 8:30 AM 30 mm
Annamalai Nagar3.3 km
24 h to 8:30 AM 39 mm
Nanjalur4.5 km
3 h 0 mmSince 8:30 AM 0 mm24 h to 8:30 AM 0 mm
Highest in district (24 h): Kothavacherry 145 mm
📋 Full district report: by taluk, dams →TN-SMART · Tamil Nadu Disaster Risk Reduction Agency
| 11 AM |
| 🌤️ |
| 1% |
| 32°(37°) |
| 13 |
| 57% |
| 12 PM | ☁️ | 1% | 33°(37°) | 14 | 51% |
| 1 PM | 🌤️ | 1% | 33°(37°) | 13 | 50% |
| 2 PM | ☁️ | 1% | 33°(36°) | 14 | 52% |
| 3 PM | ☀️ | 1% | 32°(35°) | 13 | 57% |
| 4 PM | 🌤️ | 1% | 31°(35°) | 12 | 65% |
| 5 PM | ☁️ | 1% | 29°(33°) | 12 | 69% |
| 6 PM | ☁️ | 1% | 28°(32°) | 12 | 71% |
| 7 PM | ☁️ | 1% | 28°(32°) | 15 | 82% |
| 8 PM | ☁️ | 1% | 27°(31°) | 15 | 85% |
| 9 PM | ☁️ | 1% | 27°(31°) | 15 | 86% |
| 10 PM | ☁️ | 1% | 27°(31°) | 15 | 87% |
| 11 PM | ☁️ | 1% | 26°(31°) | 15 | 89% |
| 12 AM | ☁️ | 1% | 26°(30°) | 16 | 89% |
| 1 AM | ☁️ | 1% | 26°(30°) | 16 | 90% |
| 2 AM | ☁️ | 1% | 26°(30°) | 15 | 90% |
| 3 AM | ☁️ | 1% | 26°(30°) | 14 | 90% |
| 4 AM | ☁️ | 1% | 25°(30°) | 12 | 90% |
| 0 |
| 13.8 mm |
| JMA (Japan) | 0 | 0 | 0 | 13.0 mm |
| GEM (Canada) | 0 | 0 | 0 | 17.9 mm |