Mon Sep 15 19:37:05 UTC 2025: **Summary of the text:**

The article reports on rainfall data for Chennai and Tamil Nadu during the southwest monsoon season (June 1 to September 15, 2025). Chennai received slightly above-average rainfall, while Tamil Nadu as a whole experienced near-normal rainfall. Some districts like Chengalpattu and Kancheepuram received below-normal rainfall, while others like Tiruvallur and Tenkasi experienced significantly above-normal rainfall. The southwest monsoon has begun its withdrawal from Rajasthan, and the final rainfall data may change before the end of the season (September 30).

**News Article:**

**Chennai Sees Slightly Above-Average Rainfall During Southwest Monsoon**

*CHENNAI, September 16, 2025* – Chennai experienced slightly higher rainfall than average during the southwest monsoon season, according to data released by the Regional Meteorological Centre (RMC). Between June 1st and September 15th, the city recorded 429.3 mm of rainfall, surpassing the normal of 363.9 mm.

Across Tamil Nadu, the rainfall was close to average, with 256.9 mm recorded against a normal of 264.3 mm. The RMC considers a 3% deficit within normal limits.

Rainfall distribution varied significantly across districts. Chengalpattu and Kancheepuram saw rainfall levels 16% and 17% below normal, respectively. In contrast, Tiruvallur recorded 27% more rainfall than usual, and Tenkasi experienced a large excess of 68% above normal. The Nilgiris and Coimbatore also received above-average rainfall.

“Rainfall between +19% and -19% is considered normal during a season,” explained experts at the RMC.

The southwest monsoon officially began its withdrawal from Rajasthan on Sunday. The final rainfall figures for Chennai and Tamil Nadu may fluctuate until the end of the monsoon season on September 30th.

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