Solana is expected to deliver an updated offer by major powers of political and economic incentives to Iran in return for it halting uranium enrichment activities which the West suspects is part of an attempt to acquire the atom bomb.
Iran insists its nuclear program is peaceful.
Solana said he had met Iranian Foreign Minister Manouchehr Mottaki in Lebanon over the weekend and agreed to visit soon.
"We agreed that I would go to Iran soon … I hope it will be within the month," he told a news conference after a meeting of EU foreign ministers in Brussels.
The United States, Russia, China, Britain, France and Germany have agreed in principle to send a renewed offer of cooperation in areas ranging from civilian nuclear energy to aviation, trade, the fight against drug smuggling and security if Tehran complies with U.N. demands to rein in its program.
(Reporting by Mark John; editing by David Brunnstrom)
