Agni Natchathiram, also known as Agni Nakshatram, began today in Tamil Nadu. It is an important festival dedicated to Lord Murugan and is observed during the Tamil month of Chithirai. The festival takes place during the peak of summer. Even with the extreme heat, devotees take part in rituals and prayers at famous Murugan temples such as Palani, Tiruttani, and Tiruchendur. This hot summer period, locally called 'Agni Natchathiram' or 'Kathiri Veyil', will continue from May 4 to May 28, according to a report by Maalaimalar. During this time, Tamil Nadu usually experiences very high temperatures, already crossing 100°F in several places.
Tamil Nadu Weather Prediction: Tamil Nadu Temperature May 4
In Tamil Nadu, the heat began to escalate from March, with a significant temperature increase observed since early May. As the Agni Natchathiram approaches, the severity of heatwaves is expected to intensify.

During this 25-day span, extreme heat is a common occurrence throughout the state. The current year has already witnessed temperatures soaring past 100°F in several locations. As the Agni Natchathiram period began today, there are growing worries about worsening heatwaves.
Chennai Weather Today: Chennai Weather Prediction for May 4, Sunday
On Sunday, May 4, the weather in the Tamil Nadu's capital city, Chennai will be mostly sunny with a temperature of 35°C, but it will feel like 42°C. The UV index will be very high at 13, which is extreme. The brightness will be very strong, with an AccuLumen Index of 9. Winds will be coming from the southeast at 17 km/h, with gusts reaching up to 44 km/h. There is a very low chance of rain (8%) and thunderstorms (2%). No rain is expected, and the sky will be mostly clear with only 19% cloud cover, according to the accuweather.com.
The festival spans from 4th May to 28th May 2025, aligning with Kathiri Veyil, the hottest period in Tamil Nadu. This time is marked by the Sun's transit through the Krittika star. Thousands gather at temples to honour Lord Murugan during this 25-day observance.
Significance of Agni Natchathiram in Tamilian Culture
Lord Murugan, also called Skanda or Kartikeya. He is the son of Lord Shiva and Goddess Parvati. Devotees believe that his blessings can protect them from bad things and bring them good luck and help them succeed, even during the hot weather.
During this time, people generally avoid starting new work or going on trips because of the heat. But still, devotees continue praying, trusting that Lord Murugan will bless them with good health and success.
Rituals, Traditions on Agni Natchathiram: Celebration at Palani Murugan Temple
At the Palani Murugan Temple, many rituals take place during Agni Natchathiram. Devotees walk around the temple hill in a special tradition called Giri Valam. They start early in the morning and walk barefoot while saying prayers all day. Women devotees wear Kadamba flowers, which are said to be Lord Murugan's favourite.
Before beginning their pilgrimage, people pray for health and peace. A special Abhishekam (ritual bathing) of Lord Murugan's idol occurs daily using sacred water called Theertham. On the last day of the festival, this blessed water is given to the devotees for protection or poured into local wells or temple tanks.
Kathiri Veyil Celebrations in Tamil Nadu Begins
Even though the heat is intense during Kathiri Veyil, Agni Natchathiram is still a time for spiritual focus and devotion. It reminds people of their inner strength and how Lord Murugan is always with them. As May 2025 arrives, temples all over Tamil Nadu will be filled with the sound of prayers and temple bells.
This time of the year reminds people of the power of faith, especially during difficult times. Devotees hope that Lord Murugan will bless everyone with peace and prosperity.
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