Coimbatore: Parts of Coimbatore district received moderate rainfall on Sunday night and Monday morning, with Anamalai, Valparai and Pillur recording notable showers, while the Siruvani catchment and foothill areas remained completely dry during the 24-hour period ending at 7.30 am on Monday.
According to the Coimbatore district rainfall report, Pillur Dam recorded the highest rainfall at 45 mm, classified as moderate rainfall. Anamalai Taluk recorded 22 mm, while Aliyar received 20.40 mm, with both registering moderate rainfall.
In the Valparai region, Cincona recorded 35 mm and Valparai PAP 19 mm, both classified as moderate rainfall. Sholayar also received 22 mm of moderate rain. Valparai Taluk recorded 15 mm and Chinnakalar 14 mm, both classified as light rainfall.
Elsewhere, Mettupalayam received 6 mm, while Pollachi Taluk recorded 13 mm and the PWD Inspection Bungalow at Makkinampatti recorded 11 mm. Podanur Railway Station received 2.20 mm. The district recorded a total rainfall of 224.60 mm, with an average of 9.77 mm during the period.
In contrast, the Siruvani Adivaram rainfall station recorded zero rainfall, while the Airport Peelamedu, TNAU, P.N. Palayam, Annur, Coimbatore South, Sulur, Thondamuthur and Madukkarai stations also recorded no rain.
The Siruvani water level has been gradually declining and currently stands at 33.51 feet against its full capacity of 44.61 feet. The absence of rainfall in the Siruvani catchment and foothills therefore remains a concern for the city's water resources.
The latest showers have brought some relief from the recent heat, following the spells of rain witnessed in parts of the district last week. However, consistent rainfall across the catchments is crucial, as scattered showers alone may not be sufficient to significantly improve the storage levels of the district's water bodies.
The Southwest Monsoon also ended with a significant rainfall deficit nationally, with India recording 12.6% below-normal rainfall for June–September 2026. TNAU's district-level assessment had earlier projected Coimbatore's Southwest Monsoon rainfall at 178 mm against a normal 210 mm, a 15% deficit.
With the Northeast Monsoon now becoming crucial for Coimbatore, sustained rainfall over the Western Ghats, catchment areas and plains will be important for improving reservoir storage and groundwater recharge. TNAU has forecast near-normal Northeast Monsoon rainfall for Tamil Nadu and noted that the season could provide relief by improving soil moisture, reservoir storage and groundwater recharge.
