A field experiment was conducted at Agricultural Research Station, Anantapur under AICRP on Agrometeorology during kharif seasons of 2009 and 2010 on red sandy loam soil to study the performance of groundnut varieties at different dates of sowing and irrigation regimes. Crop without irrigation (rainfed) recorded 32.6% lower yield as compared to stress free crop (irrigated crop). The crop sown during July 1st FN gave significantly higher pod yield (1667 kg/ha) compared to July 2nd FN (1411 kg/ha) and August 1st FN (1100 kg/ha) sown crop. Variety K-6 realized significantly higher pod yield (1486 kg/ha) over K-134 (1308 kg/ha) and K-1271 (1250 kg/ha). Interaction effects indicated that the maximum pod yield was gained with K-6 variety under both irrigated and rainfed conditions and in all dates of sowing. Similarly, significantly higher pod yield was obtained with K-6 variety under early sowing (July 1st FN).