2026年8月12日，北半球约9.8亿人将有机会观看日全食天文奇观[1]。这次日全食在格陵兰、冰岛、俄罗斯北部、西班牙北部和葡萄牙东北部可见全食景象，而西欧大部分地区、北非北部和北美北部将观察到偏食[1]。全食将于格林威治时间15:34开始，17:46达到顶峰，整个全食过程持续约两分钟[1]。
对许多地区而言，这是一个难得一遇的天文事件。西班牙本土已超过百年未见日全食[2]，冰岛上次日全食发生于1954年，其首都雷克雅未克距离上次可见日全食已有约600年（1433年6月）[2]。为应对观测需求，西班牙当局已设立350个官方观测点，另有123个地点因环保或疏散原因受限[2]，并部署超过33500名执法人员[2]。冰岛预期约20000名海外游客到访[2]，带动当地酒店房价大幅上涨，雷克雅未克周三晚间房价平均已超过1000美元，较2025年房价翻倍[2]。
在极端天气挑战下，西班牙采取了特殊预防措施。内政部长费尔南多·格兰德-马拉斯卡表示："高温、植被积累干燥和自然区域强烈压力需要采取极端预防措施"[2]。气象部门预计西班牙当天气温将超过35摄氏度[2]。此外，日全食眼镜供应紧张，冰岛全国药店已出现售罄现象[2]。观众需使用ISO 12312-2认证眼镜观看，普通太阳镜无法提供足够保护[1]。
Approximately 980 million people in the Northern Hemisphere are expected to witness a solar eclipse on August 12, 2026.[1] The eclipse will begin at 15:34 Greenwich Mean Time, with totality reaching its peak at 17:46 and lasting approximately two minutes.[1]
The path of totality will cross Greenland, Iceland, northern Russia, northern Spain, and northeastern Portugal, where observers will experience the complete eclipse.[1] Partial eclipse visibility will extend across much of Western Europe, northern Africa, and parts of North America.[1] This eclipse marks a significant astronomical event for Europe, as the last total solar eclipse visible from the European continent occurred in 1999.[1]
Spain and Iceland are making extensive preparations for the event.[2] Spain has established 350 official observation points, though an additional 123 locations face restrictions due to environmental concerns or evacuation obstacles.[2] Spanish authorities have deployed more than 33,500 enforcement personnel and launched a major public safety campaign in response to concerns about heat and wildfires, as Interior Minister Fernando Grande-Marlaska stated: "Extreme heat, accumulated dry vegetation and intense pressure on natural areas require extreme preventive measures."[2] Temperatures in Spain are expected to exceed 35 degrees Celsius on eclipse day.[2] Iceland anticipates an influx of 20,000 international visitors.[2] In Iceland's capital Reykjavik, hotel rooms for Wednesday evening have surged to an average price exceeding $1,000, double the typical rate for 2025.[2] The eclipse will reach its maximum duration on Iceland's west coast, lasting approximately one minute and 45 seconds, while lasting only about one minute or less when reaching Spain.[2]
Observers must use ISO 12312-2 certified eclipse glasses for safe viewing, as ordinary sunglasses provide insufficient protection.[1] Eclipse glasses have become difficult to find, with drugstores across the region reporting shortages.[2] NASA will provide live coverage of the event.[1]