Best Islands to Travel to in September: Sun, Space, and Shoulder-Season Perks
September is often overlooked in travel planning — wedged between the summer peak and the start of autumn routines. But for those in the know, it’s a golden opportunity: prices drop, crowds disappear, and many islands are still basking in perfect weather. Whether you’re looking for warm waters, cultural charm, or peace and quiet, here are ten of the best islands to explore in September, with detailed reasons why each one stands out this time of year.
1. Santorini, Greece
Why September is ideal: The blistering heat of July and August has softened, making September the perfect month to explore the island’s villages on foot. The tourist crowds thin after summer, giving you more breathing room in iconic spots like Oia and Fira. The Aegean Sea is still warm enough for swimming, and restaurants and wineries remain fully open through the month.
Santorini also hosts local festivals in early fall, offering a more authentic glimpse into Greek island life without the tourist overload. Plus, the sunset views from the caldera are just as magical — only now with fewer elbows in your photos.
- Average temp: 73–80°F (23–27°C)
- Don’t miss: A winery tour in Pyrgos and a quiet hike from Fira to Oia along the caldera cliffs.
2. Bali, Indonesia
Why September is ideal: September marks the tail end of Bali’s dry season, so the days are sunny, humidity is lower, and rain is rare. Surf conditions are fantastic, especially in southern regions like Uluwatu. Crowds from the August rush begin to fade, making it easier to explore temples, rice fields, and beaches without long lines or congested roads.
Bali also offers something for every travel style: spirituality in Ubud, surf in Canggu, diving in Amed, and luxury in Seminyak. September lets you experience all of this at a more relaxed pace, with better hotel availability and fewer tourists in your sunset shots.
- Average temp: 77–86°F (25–30°C)
- Don’t miss: Visiting the Tirta Empul water temple and catching a sunset surf session at Echo Beach.
3. Mallorca, Spain
Why September is ideal: Mallorca’s beaches are still warm and beautiful in September, but the crowds have thinned considerably from the busy summer. Water temperatures are ideal for swimming, and inland villages are calmer and more accessible. The vineyards start harvesting this month, making it a great time to explore local wines and seasonal menus.
You can drive across the island in just a few hours, meaning you can base yourself in Palma or a small coastal town and still explore remote coves, mountain villages, and cliffside drives. It’s one of Europe’s most versatile island escapes — and September is arguably the best month to enjoy it fully.
- Average temp: 70–80°F (21–27°C)
- Don’t miss: A drive through the Serra de Tramuntana and a seafood lunch in Port de Sóller.
4. Maui, Hawaii
Why September is ideal: September offers the perfect mix of warm temperatures and fewer crowds in Maui. Kids are back in school, making beaches and hiking trails less congested. It’s still technically summer in Hawaii, so ocean conditions are calm — great for snorkeling, paddleboarding, and boat tours.
Lodging and flights often drop in price this time of year, and local farmers’ markets are still overflowing with tropical produce. With fewer tourists, you’ll also have a better chance at booking sunrise at Haleakalā or scoring a prime dinner reservation in Lahaina or Wailea.
- Average temp: 70–88°F (21–31°C)
- Don’t miss: The Road to Hana, especially with reduced traffic — more time to enjoy waterfalls, hikes, and scenic views.
5. Azores, Portugal
Why September is ideal: Located in the middle of the Atlantic Ocean, the Azores offer dramatic landscapes, volcanic lakes, and a refreshingly mild climate. September is just past peak season, with temperatures still pleasant and seas calm for whale watching, diving, and sailing.
This is also one of the greenest times of year in the Azores, thanks to summer rains. Hiking trails are lush, and the hydrangeas are still blooming across São Miguel. You’ll enjoy a quieter, more local vibe as the crowds thin and harvest season begins.
- Average temp: 68–77°F (20–25°C)
- Don’t miss: A soak in the Terra Nostra hot springs followed by a traditional cozido meal cooked underground using volcanic steam.
6. Seychelles
Why September is ideal: September falls during the dry southeast trade wind season in Seychelles, bringing calm seas, sunny skies, and moderate humidity. These conditions are perfect for water activities like snorkeling, diving, and island hopping. Unlike the Caribbean, Seychelles is outside the hurricane belt — so it remains reliably calm this time of year.
The beaches are famously pristine — soft white sand, turquoise waters, and dramatic granite formations. Plus, the islands remain relatively uncrowded year-round, but September gives you even more space to enjoy nature at its quiet best.
- Average temp: 75–86°F (24–30°C)
- Don’t miss: Snorkeling at Sainte Anne Marine Park and exploring Anse Lazio on Praslin Island.
7. Corsica, France
Why September is ideal: Corsica’s Mediterranean warmth lingers well into September, making it a prime time for hiking, beach hopping, and exploring rustic hill towns. The crowds from French and Italian tourists fade by mid-September, leaving roads, trails, and beaches more peaceful.
September is also harvest time in Corsica, so you’ll find festivals celebrating wine, figs, chestnuts, and cheese. The island blends natural beauty with cultural richness — think vineyards, mountaintop monasteries, and coastal citadels.
- Average temp: 68–79°F (20–26°C)
- Don’t miss: Hiking part of the GR20 trail and taking a boat tour along the stunning cliffs of Bonifacio.
8. Zanzibar, Tanzania
Why September is ideal: September falls in Zanzibar’s dry season, which means warm days, low humidity, and minimal rainfall. The water visibility is excellent for diving and snorkeling, and the beaches are postcard-perfect — white sand, leaning palms, and warm turquoise waters.
It’s also one of the best months to explore the island’s cultural side — from the UNESCO-listed Stone Town to spice farms and Swahili cooking classes. You’ll find friendly locals, fewer crowds, and easy access to wildlife safaris on the mainland.
- Average temp: 70–88°F (21–31°C)
- Don’t miss: A private dhow cruise at sunset and a visit to Jozani Forest to spot the rare red colobus monkey.
9. Crete, Greece
Why September is ideal: Crete, the largest Greek island, offers a perfect mix of beaches, archaeological sites, and charming villages. September brings cooler evenings and warm days, ideal for hiking and sightseeing without summer’s oppressive heat.
It’s also a great time for food lovers — the grape harvest is underway, and fresh olive oil and honey are in abundance. From exploring the ruins of Knossos to lounging on pink-sand beaches, September offers the full Crete experience with room to breathe.
- Average temp: 73–82°F (23–28°C)
- Don’t miss: Hiking the Samaria Gorge early in the day, then relaxing in Chania’s harbor in the evening.
10. Fiji
Why September is ideal: September is part of Fiji’s dry season, with low humidity, warm water, and bluebird skies. It’s a top time for diving, snorkeling, and visiting remote outer islands, as the seas are calm and crystal clear. Plus, it’s shoulder season — meaning fewer crowds and better rates.
Fiji’s islands offer something for everyone, from family resorts to romantic overwater bungalows to backpacker islands full of energy and culture. September also sees various cultural events, allowing you to experience local Fijian traditions and food alongside the natural beauty.
- Average temp: 68–83°F (20–28°C)
- Don’t miss: Snorkeling the coral reefs around the Yasawas and visiting a traditional village to experience Fijian hospitality.
Final Thoughts: Shoulder Season, Full Experience
September is that sweet spot in the travel calendar when the weather still feels like summer, but the vibe is far more relaxed. On these islands, you’ll find fewer crowds, lower prices, and a more local, authentic energy. Whether you’re in search of cultural immersion, wild landscapes, or just a perfect stretch of sand — these island escapes offer their very best in early fall.
So go ahead — book that flight. September is waiting, and it’s bringing sunshine and serenity with it.
