长日照、温暖与热门月份
夏季成为热门月份自有道理：日照长得惊人，六月在高地可达约18小时光照，还有绵长的暮光（当地称为“simmer dim”），最北部几乎不会完全天黑。气温是温和而非炎热——天气好时舒适和暖，但苏格兰夏天依然经常又湿又有风，所以即使在七月，防水外套和多层衣物都要放在包里。这是健行、跳岛和游天空岛最干爽和暖的时段，海洋和湖泊也最美。代价是价格较高、道路和热门景点更繁忙，住宿和行程要及早预订，八月爱丁堡节庆期间尤甚。
节庆、人潮与需提防的蠓虫
八月是节庆月：爱丁堡艺穗节、国际艺术节和皇家爱丁堡军乐表演令首都热闹非常，但酒店爆满、价格飙升。全国各地夏季也有高地运动会（Highland Games）。有两件事要提防：天空岛 Quiraing、尼斯湖等热门点的人潮，最好清早或傍晚去；以及蠓虫——一种细小的咬人昆虫，在高地约由五月底至九月、无风潮湿的傍晚最猖獗。私人包车可以化解这些问题：MegaSpace 会计算好时间避开旅游大巴人潮、善用长日照多看景点，并在各站之间提供密封、没有蠓虫的车厢，即使热门月份也是全车固定报价。
Complete guide to summer in Scotland (June–August) — busiest months: very long daylight, up to around 18 hours in the Highlands in June with lingering twilight; temperatures mild rather than hot, but often wet and windy, so bring waterproofs and layers. The best time for hiking, island-hopping and the Isle of Skye, but prices are high and it is busy, so book early. In August Edinburgh hosts the Fringe, the International Festival and the Tattoo, and hotels are full. Highland Games take place across the country. Watch out for crowds at popular spots (go early or late) and midges (worst from late May to September on still, humid evenings). MegaSpace plans around the peaks, makes the most of the long daylight, offers a sealed midge-free vehicle and a fixed price per car. Summer in Scotland · Scottish weather · Edinburgh Fringe · private chauffeur.