Weather in Santorini in September

In September, Santorini experiences balmy weather ideal for exploring outdoor attractions. Temperatures are warm, the sun shines generously, and occasional light showers may occur. This month offers a pleasant climate perfect for enjoying the unique landscapes and local charms.

September Climate Overview

• Average Temperature: 22°C to 29°C
• Rainfall: 15mm
• Sunshine Hours: 10 hours per day
• Sea Temperature: 24°C
• Humidity: 68%
• Wind Speed: 14 km/h

What to Expect in September

Daytime Conditions

The daytime in Santorini during September is warm, with temperatures typically reaching up to 29°C. The high sun exposure encourages the use of sunscreen and hats. Humidity is moderate, making it comfortable for outdoor ventures amidst the island’s stunning views.

Rainfall Patterns

Rainfall in September is generally scarce, with around 15mm across the month. Any rain usually comes in short, light showers that quickly make way for clear skies, ensuring little disruption to outdoor plans.

Evening Conditions

Evenings in September are pleasantly cool, with temperatures dropping to around 22°C. A gentle breeze makes outdoor dining and exploring around twilight comfortable. Humidity decreases, providing a refreshing end to warm days.

Best Activities in Santorini in September

• Outdoor Activities: September’s ideal weather is excellent for hiking trails, exploring archaeological sites, and visiting local markets. The mild temperatures and low rainfall enhance the enjoyment of these activities.
• Seasonal Highlights: The vineyards are in full swing for the grape harvest season, creating a unique opportunity for wine enthusiasts to explore local wine-making traditions.
• Water-based or Nature-based Activities: The sea is warm, offering perfect conditions for swimming, snorkelling, and other water-based activities.

What to Pack for September

• Light, breathable clothing for daytime warmth and a light jacket for cooler evenings
• Sun protection such as sunscreen and a hat
• Umbrella or light rain jacket for unexpected showers
• Comfortable footwear suitable for exploring rugged terrains and paved streets
• Reusable water bottle to stay hydrated during explorations