Barcelona recorded its hottest month of June since records started over a century ago, Spain's national weather service said on Tuesday as Europe remained in the grip of the first major heat wave this summer.

Barcelona recorded its hottest June in over a century, the summit of Paris' iconic Eiffel Tower was closed to visitors and hundreds of French schools shut Tuesday as Europe sizzled in its first major heat wave of the summer.

Europe's continuing heat wave on Wednesday helped fuel a deadly wildfire in Spain while the European Union presented plans to reduce greenhouse gas emissions under scorching temperatures.