Students and parents in Tamil Nadu should note that schools are likely to remain open on November 18, 2025 . While heavy rain, thunderstorms, and strong winds are expected in many parts of the state, most districts have received only a Yellow Alert from weather officials for that day. A school holiday is generally declared if a more severe Orange or Red Alert is issued due to very bad weather.
The state has been seeing heavy rainfall because of a low-pressure area that formed over the Bay of Bengal. On November 17, 2025 , some areas were under an Orange Alert . This strong weather made authorities consider closing schools for the next day, November 18, 2025 .
District administrations will make the final decision on school closures. They look at the local weather conditions. Because most districts only have a Yellow Alert for November 18, 2025 , it means the weather might not be severe enough for a holiday. However, conditions can change, so staying updated is important.
Understanding Weather Alerts
Weather warnings help people know how bad the rain or wind might be. Here is what each alert level means:
- Yellow Alert: This means 'be aware'. Heavy rain, thunderstorms, lightning, or strong winds (squall) are possible. People should stay informed.
- Orange Alert: This means 'be prepared'. Very heavy rain or storms are expected, which can cause problems like flooding or power cuts. People should be ready to take action.
- Red Alert: This means 'take action'. Extremely severe weather is coming, which is dangerous. People should stay indoors and follow safety instructions immediately.
District-wise Weather Alerts for November 18, 2025
Here is a list of districts with Yellow Alerts for November 18, 2025 . These areas can expect heavy rainfall, thunderstorms, lightning, and squall conditions:
| District Name | Weather Alert Type | Warnings Issued |
| Thiruvallur | Yellow Alert | Heavy Rainfall, Thunderstorm, Lightning, Squall |
| Kancheepuram | Yellow Alert | Heavy Rainfall, Thunderstorm, Lightning, Squall |
| Mayiladuthurai | Yellow Alert | Heavy Rainfall, Thunderstorm, Lightning, Squall |
| Nagapattinam | Yellow Alert | Heavy Rainfall, Thunderstorm, Lightning, Squall |
| Thiruvarur | Yellow Alert | Heavy Rainfall, Thunderstorm, Lightning, Squall |
| Thoothukudi | Yellow Alert | Heavy Rainfall, Thunderstorm, Lightning, Squall |
| Thirunelveli | Yellow Alert | Heavy Rainfall, Thunderstorm, Lightning, Squall |
| Kanyakumari | Yellow Alert | Heavy Rainfall, Thunderstorm, Lightning, Squall |
| Virudhunagar | Yellow Alert | Heavy Rainfall, Thunderstorm, Lightning, Squall |
| Tenkasi | Yellow Alert | Heavy Rainfall, Thunderstorm, Lightning, Squall |
| Ramnathapuram | Yellow Alert | Heavy Rainfall, Thunderstorm, Lightning, Squall |
| Sivagangai | Yellow Alert | Heavy Rainfall, Thunderstorm, Lightning, Squall |
| Madurai | Yellow Alert | Heavy Rainfall, Thunderstorm, Lightning, Squall |
| Dindigul | Yellow Alert | Heavy Rainfall, Thunderstorm, Lightning, Squall |
| Theni | Yellow Alert | Heavy Rainfall, Thunderstorm, Lightning, Squall |
| Thanjavur | Yellow Alert | Heavy Rainfall, Thunderstorm, Lightning, Squall |
| Coimbatore | Yellow Alert | Heavy Rainfall, Thunderstorm, Lightning, Squall |
| Nilgiris | Yellow Alert | Heavy Rainfall, Thunderstorm, Lightning, Squall |
| Karur | Yellow Alert | Heavy Rainfall, Thunderstorm, Lightning, Squall |
| Ariyalur | Yellow Alert | Heavy Rainfall, Thunderstorm, Lightning, Squall |
| Perambalur | Yellow Alert | Heavy Rainfall, Thunderstorm, Lightning, Squall |
| Villupuram | Yellow Alert | Heavy Rainfall, Thunderstorm, Lightning, Squall |
| Ranippettai | Yellow Alert | Heavy Rainfall, Thunderstorm, Lightning, Squall |
| Chennai | Yellow Alert | Heavy Rainfall, Thunderstorm, Lightning, Squall |
| Chengalpattu | Yellow Alert | Heavy Rainfall, Thunderstorm, Lightning, Squall |
| Thiruvanamalai | Yellow Alert | Heavy Rainfall, Thunderstorm, Lightning, Squall |
| Puducherry | Yellow Alert | Heavy Rainfall, Thunderstorm, Lightning, Squall |
| Kallakkurichi | Yellow Alert | Heavy Rainfall, Thunderstorm, Lightning, Squall |
Districts with No Weather Warnings for November 18, 2025
The following districts in Tamil Nadu have no specific weather warnings issued for November 18, 2025 :
- Krishnagiri
- Erode
- Namakkal
- Thiruppur
Important Advice for Students and Parents
Even with Yellow Alerts , local weather conditions can change quickly. Students and parents should always check for official announcements from their district administration or local school authorities. This information will confirm if schools are open or closed in their specific area. Rely only on official sources for school holiday news.
Safety is the most important thing during bad weather. Stay informed and follow all advice given by the government or local officials. Avoid going out if conditions are bad. Check local news channels and official websites for the latest updates.
