Book Sunset Dinners in Advance
September is still popular, especially for those iconic Oia sunset views. Make reservations well ahead of time to secure the best spots and avoid disappointment.
Get your personalized Santorini list
We'll tune the list to your exact trip — dates, activities, and weather.
Weather in Santorini in September
September in Santorini greets you with a delightful average high of 79°F (26°C) and comfortable lows around 70°F (21°C), making for pleasant days and balmy evenings. Rainfall is still very low, with an average of just 0.4 inches (10 mm) for the entire month, so you can generally expect dry, sunny skies. Humidity levels sit around 60%, and you'll enjoy approximately 12 hours of daylight, offering ample time for exploration and relaxation.
What to wear in Santorini in September
Embrace a chic yet comfortable aesthetic for Santorini in September. Light, breathable fabrics like linen and cotton are your best friends for daytime, transitioning to slightly dressier but still relaxed attire for evenings out. While there aren't strict dress codes, a respectful approach to clothing, especially when visiting churches, is always appreciated.
Affiliate disclosure: As an Amazon Associate, SmartPacker earns from qualifying purchases. Product links on this page may be affiliate links — using them costs you nothing extra and helps keep our packing guides free.
Essentials for Santorini in September
Lightweight scarf or pashmina
This versatile item is perfect for sun protection during the day, adding a touch of elegance in the evening, and providing a bit of warmth if the evening breeze picks up.
Comfortable walking sandals with good grip
Santorini's charming villages are filled with cobblestone streets and steps, so footwear that can handle uneven terrain is crucial for pain-free exploration.
Swimsuit (at least two)
With the Aegean Sea still wonderfully warm, you'll want to take advantage of the beautiful beaches and your hotel pool, so having a spare ensures you always have a dry one.
Broad-brimmed sun hat
The September sun can still be intense, and a stylish hat will offer essential protection for your face and neck while you're out and about.
High-SPF reef-safe sunscreen
Protect your skin from the strong Mediterranean sun while also being kind to the delicate marine ecosystem around the island.
Polarized sunglasses
These will reduce glare off the white-washed buildings and the sparkling Aegean, making your views even more spectacular and protecting your eyes.
Small backpack or cross-body bag
Ideal for carrying your daily essentials – water, camera, sunscreen – while keeping your hands free for exploring and picture-taking.
Portable charger/power bank
You'll be taking countless photos of Santorini's beauty, so ensure your phone or camera stays charged throughout your day's adventures.
Light long-sleeved top or cardigan
Perfect for cooler evenings when dining al fresco or for providing sun protection during the day without being too heavy.
Travel adapter (Type F or C)
Ensure you can charge all your electronics, as Greece uses different plug types than many other countries.
Pro tips
Explore Early Morning or Late Afternoon
While daytime temperatures are pleasant, exploring during peak sun hours can still be warm. Opt for early morning strolls or late afternoon adventures to beat the heat and the crowds.
Stay Hydrated Constantly
Even in September, the dry climate and sunshine mean you'll need to drink plenty of water. Carry a reusable water bottle and refill it often to stay comfortable.
Rent a Car or ATV for Freedom
Public transport is available, but renting your own vehicle gives you the flexibility to discover hidden gems and less-traveled spots at your own pace.
Embrace the Wind, but be Prepared
The 'Meltemi' wind can pick up suddenly, even in September. It can be refreshing, but also bring a chill, so that light scarf or cardigan will come in handy.
Frequently asked
Is September a good time to visit Santorini?
Absolutely! September is often considered one of the best months to visit. The scorching summer heat has mellowed, the sea is still warm for swimming, and the peak crowds of July and August have started to thin out, offering a more relaxed experience.
What kind of shoes should I bring for walking around Santorini?
Comfortable walking sandals with good arch support and a secure strap are essential. You'll be navigating a lot of steps and uneven cobblestone paths in villages like Oia and Fira. Leave the high heels at home – they're not practical here!
Is the water still warm enough for swimming in September?
Yes, definitely! The Aegean Sea around Santorini has had all summer to warm up, so in September, you can expect delightful swimming temperatures, often hovering around 75°F (24°C). It's perfect for a refreshing dip.
What should I pack for evenings in Santorini in September?
Evenings are generally mild and pleasant, but a light sweater, cardigan, or a stylish pashmina is a smart addition. The 'Meltemi' wind, especially if you're dining outdoors by the caldera, can make it feel cooler once the sun sets.
Are there any specific cultural customs or dress codes I should be aware of?
While Santorini is generally relaxed, it's always respectful to dress modestly when visiting churches or monasteries – this typically means covering your shoulders and knees. Otherwise, resort smart-casual is generally appropriate.
Will I still experience crowds in September?
While you won't encounter the extreme crowds of July and August, September is still a very popular month. Iconic spots like Oia for sunset will still be busy, but generally, the island feels more breathable and enjoyable than in peak summer.