Reykjavík
IcelandJuly avg high 13°CThe coolest July capital in Europe. Endless 21-hour daylight for early-morning or late-evening walks, the Tjörnin lake walks and Heiðmörk reserve trails accept leashed dogs year-round, and there is genuinely zero heat-stress risk for any breed. The only downside is the import paperwork: dogs from EU need an Animal Health Certificate via the Icelandic vet authority MAST, plan 3-4 weeks ahead.
Hotel Reykjavik Centrum - boutique 4-star in the oldest restored building of central Reykjavík. Pets welcomed on request, 2-min walk to the Tjörnin lake walk, the lobby tolerates a quiet leashed dog while you have a coffee.