The president made the charge while opening a dam in Arak, Murkazi province, The Daily Telegraph reported. Immediately after he spoke, rain began falling.
Ahmadinejad said European scientists with high-tech equipment are able to extract water from clouds while they are over the continent.
"They prevent rain clouds from reaching regional countries, including Iran," he said.
He also cited an article predicting drought in Turkey and countries to its south and east during the next 30 years. He said the article was by a
"Western politician" he did not name, adding that the countries on the list have a "culture and civilization that frighten the West."