Zanzibar in October: The Weather and Activities for Your October Holiday
Zanzibar, the enchanting archipelago off Tanzania's coast, captivates visitors with its unique blend of African, Arab, and Indian influences. This tropical paradise offers pristine white-sand beaches, historic Stone Town's winding alleys, and a rich Swahili culture that permeates every aspect of island life. For newcomers, Zanzibar promises an intoxicating mix of relaxation and adventure, from spice tours to dhow sailing experiences that showcase centuries-old maritime traditions.
October marks an excellent time for your Zanzibar holiday, sitting perfectly between the long dry season and the short rains of November. You'll encounter fewer crowds than during the peak July-September period, whilst still enjoying favourable weather conditions and warm ocean temperatures. Hotels often offer attractive shoulder-season rates, and the islands maintain their vibrant atmosphere without the overwhelming tourist numbers that characterise the European summer holidays.
Overview of Zanzibar's Climate in October
October in Zanzibar represents a transitional period as the islands prepare for the short rainy season ahead. The month typically offers a delightful combination of warm temperatures, abundant sunshine, and relatively low humidity compared to the wetter months.
Trade winds continue to provide a refreshing breeze, particularly along the coast, making the tropical heat more bearable. Whilst occasional brief showers may occur towards the month's end, October generally maintains the dry conditions that have prevailed since June, creating ideal circumstances for both beach activities and cultural exploration throughout the archipelago.

October brings pleasantly warm temperatures to Zanzibar, with daytime maximums typically reaching 29-30°C (84-86°F). These temperatures create perfect conditions for enjoying the islands' numerous outdoor attractions without the overwhelming heat that can occur during the hottest months. Nighttime temperatures rarely drop below 23°C (73°F), ensuring comfortable evenings for dining al fresco or strolling along the beach under starlit skies.
The consistent warmth throughout October means you'll experience genuinely tropical conditions without extreme temperature fluctuations. Early mornings offer the coolest temperatures, ideal for activities like jogging along the beach or exploring Stone Town's markets before the midday sun intensifies. The afternoon heat, whilst noticeable, remains manageable thanks to coastal breezes, particularly on the eastern shores where the Indian Ocean winds provide natural air conditioning.

October blesses Zanzibar with approximately 12 hours of daylight, with sunrise occurring around 6:00 AM and sunset at roughly 6:15 PM. This equatorial consistency in daylight hours provides ample time for exploring the islands' diverse attractions, from morning snorkelling expeditions to evening cultural performances. The reliable sunshine makes planning outdoor activities straightforward, without concerns about shortened days affecting your itinerary.
You can expect predominantly sunny conditions throughout October, with an average of 8-9 hours of sunshine daily. Whilst occasional clouds may drift across the sky, particularly in late afternoon, they rarely persist long enough to significantly impact outdoor plans.

October remains largely dry in Zanzibar, with average rainfall totalling only 40-60mm across the entire month. When rain does occur, it typically manifests as brief, refreshing showers in the late afternoon or evening, rarely lasting more than an hour. These occasional downpours actually enhance the island experience, cooling the air and releasing the fragrant scents of tropical vegetation. Humidity levels stay relatively comfortable at around 75%, considerably lower than during the wet seasons.

The Indian Ocean surrounding Zanzibar maintains delightfully warm temperatures in October, averaging 27-28°C (81-82°F). These inviting waters create perfect conditions for swimming, snorkelling, and diving without the need for wetsuits. The ocean temperature remains consistent throughout the day, making early morning swims as comfortable as afternoon dips.
Packing Tips and Recommendations for Zanzibar
When preparing for your October holiday in Zanzibar, focus on lightweight, breathable clothing suitable for tropical conditions. Pack plenty of cotton or linen shirts, shorts, and sundresses that will keep you cool during warm days. Don't forget to include at least one light cardigan or long-sleeved shirt for air-conditioned restaurants and potential evening breezes. Comfortable walking sandals are essential for beach activities, whilst closed-toe shoes prove useful for Stone Town's uneven streets and any hiking excursions.
When to Visit Zanzibar
The optimal time for visiting Zanzibar spans from June through October and again from December through February. These periods offer the most reliable weather conditions, with minimal rainfall and comfortable temperatures. June through October, encompassing the long dry season, provides consistently sunny days perfect for beach activities and water sports. The cooling Kusi wind during these months makes exploring inland attractions more comfortable, whilst the clear skies create ideal conditions for photographing the islands' stunning landscapes and architecture.
When Not to Visit Zanzibar
The least favourable time for visiting Zanzibar falls during the long rainy season from March through May. April typically sees the heaviest rainfall, with frequent tropical downpours that can last several hours and potentially disrupt outdoor activities. Many beach resorts and restaurants close during this period, particularly in April and early May, limiting accommodation and dining options. The combination of high humidity and persistent rain can make sightseeing uncomfortable, whilst rough seas often prevent boat trips to offshore islands.
The Best Activities and Sights of Zanzibar in October
Explore Stone Town’s Historic Streets
October's comfortable temperatures make wandering through Stone Town's UNESCO World Heritage labyrinth particularly enjoyable. Start early to explore the House of Wonders, the Old Fort, and the former slave market before the midday heat. The Palace Museum and Freddie Mercury House offer fascinating glimpses into Zanzibar's diverse history. Evening walks reveal the Forodhani Gardens food market at its liveliest, where you can sample local delicacies whilst watching the sunset paint the harbour in golden hues.
Spice Tour Adventures:
The legendary spice tours reach their aromatic peak in October, with many plants flowering or bearing fruit. These half-day excursions through working plantations reveal Zanzibar's history as the "Spice Island," where you'll discover cardamom, cinnamon, nutmeg, and vanilla growing in their natural habitat. Local guides share traditional uses for each spice, from culinary applications to medicinal remedies, whilst demonstrating traditional climbing techniques for harvesting coconuts and creating natural cosmetics from fresh ingredients.
Prison Island Excursion:
A short boat ride from Stone Town, Prison Island (Changuu Island) offers a perfect day trip in October's calm seas. The island houses a sanctuary for giant Aldabra tortoises, some over 150 years old, providing unique photo opportunities and interaction with these gentle giants. The crystal-clear waters surrounding the island invite snorkelling, with coral reefs teeming with tropical fish just metres from the beach. The ruins of the former prison add historical intrigue to this natural paradise.
Jozani Forest Discovery:
October's drier conditions create ideal circumstances for exploring Jozani Chwaka Bay National Park, home to the endemic red colobus monkeys. The forest trails remain firm underfoot, making wildlife spotting more comfortable as you search for these playful primates amongst the canopy. The park's mangrove boardwalk offers a unique ecosystem experience, where you might spot various bird species, butterflies, and small antelopes whilst learning about the forest's crucial role in Zanzibar's ecology.
Dolphin Watching in Kizimkazi:
The southern village of Kizimkazi provides excellent dolphin-watching opportunities in October's calm waters. Early morning boat trips offer the best chances of encountering pods of bottlenose and humpback dolphins in their natural habitat. Responsible tour operators ensure minimal disturbance to these magnificent creatures whilst providing unforgettable encounters. The village itself merits exploration, featuring one of East Africa's oldest mosques and offering insights into traditional Swahili coastal life.
Nungwi and Kendwa Beach Relaxation:
October's weather creates perfect conditions for enjoying Zanzibar's northern beaches. Nungwi and Kendwa offer powdery white sand and turquoise waters ideal for swimming, as these beaches experience minimal tidal variation. Water sports abound, from kayaking and stand-up paddleboarding to parasailing and jet skiing. The beaches' western orientation makes them perfect for sunset watching, with numerous beachfront bars and restaurants providing front-row seats for nature's daily spectacle.
Sunset Dhow Cruise:
No Zanzibar visit feels complete without experiencing a traditional dhow sailing cruise, and October's gentle winds create optimal conditions. These wooden sailing vessels, used for centuries in Indian Ocean trade, offer a romantic way to explore the coastline. Most cruises depart in late afternoon, allowing you to witness the spectacular sunset whilst enjoying fresh fruit and seafood snacks. The calm October seas ensure a smooth journey, perfect for those prone to seasickness.
Mnemba Atoll Snorkelling and Diving:
October presents exceptional conditions for exploring Mnemba Atoll, Zanzibar's premier marine sanctuary. The clear waters offer visibility often exceeding 25 metres, revealing vibrant coral gardens inhabited by green turtles, dolphins, and countless tropical fish species. Whether you're a certified diver or prefer snorkelling, the atoll's protected waters showcase the Indian Ocean's biodiversity at its finest. October's conditions particularly favour underwater photography, with excellent light penetration illuminating the reef's spectacular colours.
October in Zanzibar truly offers an ideal combination of favourable weather, fewer crowds, and the full range of activities that make this destination so special. Whether your interests lie in cultural exploration, water sports, wildlife encounters, or simple beach relaxation, October provides the perfect conditions for an unforgettable Zanzibar holiday.