Gran Canaria and Tenerife are widely considered the sunniest Canary Islands in October, specifically in their southern regions. Due to the topography of the islands, high mountains often trap clouds in the north, while the southern coasts (like Maspalomas in Gran Canaria or Playa de las Américas in Tenerife) remain sheltered and bask in over 300 days of sunshine a year. In October, these southern areas average around 7 to 8 hours of sunshine per day with temperatures comfortably sitting between 22°C and 26°C (72°F–79°F). While Lanzarote and Fuerteventura are also very sunny and generally drier due to their flatter landscapes, they can be significantly windier in the autumn months. For travelers in 2026 seeking a guaranteed "summer extension" with calm seas and clear skies, the microclimates of southern Gran Canaria are the gold standard, offering a perfect balance of warmth and tranquility before the European winter sets in.