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) · rain is moving in from the NW at 18 km/h (using the upper-air wind)
Approximate: rain cells grow and fade as they move · Testing: the radar nowcast is still being checked against what happened
Sources
Radar 3:36 AM · Lightning 4:01 AM · Gauges to 04:30 AM · Models 4:32 AM
👥 Is it raining where you are right now?
Small chance of rain (10%)
0 mm expected in 24 hours · 10% chance of rain today
☀️ Dry spell: 4 AM – 4 PM
☂️ Umbrella?✅
Not needed — low chance of rain
👕 Dry clothes outside?✅
Yes — Today 8 AM – 2 PM
🏍️ Two-wheeler ride?✅
Fine — no significant rain
🌅 Evening outing?✅
Today: pleasant evening, 30° — beach or park
🌾 Spray crops?✅
Yes — Today 6 AM – 2 PM
| Time | Rain (%, mm) | Temp | Wind | RH | |
|---|---|---|---|---|---|
| 4 AM | ☁️ | 1% | 25°(29°) | 3 | 90% |
| 5 AM | ☁️ | 1% | 24°(29°) | 3 | 92% |
| 6 AM | 🌤️ | 1% | 25°(30°) | 2 | 90% |
| 7 AM | 🌤️ | 1% | 26°(31°) | 4 | 86% |
| 8 AM | 🌤️ | 1% | 27°(32°) | 4 | 82% |
| 9 AM | 🌤️ | 1% | 29°(34°) | 3 | 76% |
| 10 AM | ☁️ | 1% | 30°(36°) | 4 | 70% |
| 11 AM | ☁️ | 1% | 31°(38°) | 3 | 65% |
| 12 PM | 🌦️ | 4% | 31°(38°) | 5 | 64% |
| 1 PM | ☁️ | 4% | 32°(38°) | 6 | 60% |
| 2 PM | 🌤️ | 6% · 0.1 | 32°(37°) | 6 | 59% |
| 3 PM | 🌤️ | 6% | 31°(36°) | 6 | 62% |
| 4 PM | 🌤️ | 6% | 30°(34°) | 11 | 69% |
| 5 PM | 🌦️ | 11% · 0.2 | 28°(32°) | 13(31) | 81% |
| 6 PM | 🌦️ | 6% · 0.1 | 27°(32°) | 9 | 85% |
| 7 PM | ☁️ | 6% | 27°(32°) | 6 | 84% |
| 8 PM | ☁️ | 4% | 27°(33°) | 2 | 81% |
| 9 PM | 🌙 | 1% | 27°(32°) | 5 | 83% |
| 10 PM | ☁️ | 1% | 26°(32°) | 2 | 86% |
| 11 PM | ☁️ | 1% | 26°(31°) | 1 | 87% |
| 12 AM | 🌙 | 1% | 25°(31°) | 3 | 89% |
| 1 AM | 🌙 | 1% | 25°(30°) | 2 | 89% |
| 2 AM | 🌙 | 1% | 25°(30°) | 1 | 87% |
| 3 AM | 🌙 | 1% | 25°(30°) | 1 | 86% |
| 4 AM | 🌙 | 1% | 25°(30°) | 1 | 86% |
| 5 AM | ☁️ | 1% | 25°(29°) | 3 | 89% |
| 6 AM | 🌤️ | 1% | 24°(29°) | 4 | 90% |
| 7 AM | ☀️ | 1% | 26°(31°) | 4 | 83% |
| 8 AM | ☀️ | 1% | 28°(33°) | 2 | 75% |
| 9 AM | ☀️ | 1% | 30°(35°) | 4 | 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 | 2.4 | 0.6 | 0 | 12.7 mm |
| GFS (USA)✓ used | 1.1 | 0 | 0 | 11.5 mm |
| ICON (Germany)✓ used | 5.5 | 0 | 0 | 9.5 mm |
| UK Met Office✓ used | 0.1 | 0.5 | 0 | 12.2 mm |
| Météo-France✓ used | 5.0 | 0 | 0 | 12.3 mm |
| CMA (China)✓ used | 0 | 0 | 0 | 12.5 mm |
| ECMWF (Europe) | 3.0 | 0.9 |
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.
Cholapuram0.0 km
3 h 0 mmSince 8:30 AM 0 mm24 h to 8:30 AM 10 mm
Sethur8.9 km
3 h 0 mmSince 8:30 AM 0.8 mm24 h to 8:30 AM 1.2 mm
Sundaramrajapuram9.4 km
Since 8:30 AM no reading24 h to 8:30 AM no reading
Highest in district (24 h): Irunchirai 45 mm
📋 Full district report: by taluk, dams →TN-SMART · Tamil Nadu Disaster Risk Reduction Agency
| 10 AM |
| ☀️ |
| 1% |
| 31°(37°) |
| 6 |
| 59% |
| 11 AM | ☀️ | 1% | 32°(39°) | 6 | 55% |
| 12 PM | 🌤️ | 1% | 33°(39°) | 6 | 53% |
| 1 PM | 🌤️ | 1% | 34°(40°) | 5 | 51% |
| 2 PM | ☀️ | 1% | 34°(38°) | 8 | 52% |
| 3 PM | ☀️ | 1% | 33°(38°) | 7 | 53% |
| 4 PM | ☀️ | 1% | 33°(38°) | 5 | 53% |
| 5 PM | ☀️ | 1% | 31°(37°) | 4 | 67% |
| 6 PM | ☀️ | 1% | 30°(35°) | 4 | 67% |
| 7 PM | ☁️ | 1% | 29°(32°) | 6 | 65% |
| 8 PM | ☁️ | 1% | 27°(31°) | 7 | 70% |
| 9 PM | ☁️ | 1% | 26°(30°) | 5 | 76% |
| 10 PM | ☁️ | 1% | 25°(29°) | 4 | 81% |
| 11 PM | ☁️ | 1% | 24°(28°) | 4 | 84% |
| 12 AM | ☁️ | 1% | 23°(27°) | 3 | 88% |
| 1 AM | 🌙 | 1% | 23°(27°) | 1 | 87% |
| 2 AM | 🌙 | 1% | 22°(25°) | 2 | 85% |
| 3 AM | ☁️ | 1% | 21°(24°) | 3 | 86% |
| 0 |
| 13.8 mm |
| JMA (Japan) | 5.4 | 0 | 0.6 | 13.0 mm |
| GEM (Canada) | 0 | 0 | 0 | 17.9 mm |