Best Time to Visit Zanzibar Tanzania
Summary of best time to visit Zanzibar: June to October. Dry, comfortable, good for diving and beach time. But your choice of beach matters more than your choice of month because the tides on the east coast are brutal and nobody warns you properly.
September last year, I arranged a post-safari trip for a couple from the UK. They’d booked a boutique hotel in Jambiani based on photos, four nights, $280/night. Gorgeous place. They landed in Zanzibar around 2pm, took a taxi (cost them $65, which felt steep but that’s the going rate from the airport to the east coast, about 90 minutes with traffic through Stone Town). By 4pm they were at the hotel.
The ocean wasn’t there.
Low tide had hit around 1:30pm that day. What they saw instead of turquoise water was a kilometre of exposed sand flat, dotted with wooden stakes where local women farm seaweed, tidal pools full of sea urchins, and a smell—not unpleasant exactly, but briny, organic, like the inside of a fishing boat. The hotel manager handed them a tide chart and explained high tide would return around 8pm. In the dark.
They ended up in the pool that evening. Next morning, high tide hit at 2am and again around 2:30pm. They got maybe three hours of actual swimming in four days. On the third day, they hired a taxi ($45) to Nungwi in the north and spent the afternoon there, swimming whenever they wanted. “Why didn’t anyone tell us?” was the question I got when they returned.
That’s why I started paying attention to Zanzibar beyond “dry season good, wet season bad.”
Month by Month Breakdown
June to October (Dry Season)
This is when most people go and for good reason. Rain stops, humidity drops to bearable levels, temperatures hover around 26-28°C. The trade winds called kusi blow from the southeast and keep things from feeling sticky. Diving visibility hits 30+ metres. The water is bath-warm but not soupy.
It’s also peak season for Tanzania safaris, so every safari tourist and their mother flies into Zanzibar afterward. Flights leave Serengeti airstrips daily before noon, land in Zanzibar by early afternoon. If you want a specific hotel in July or August, book months ahead or accept whatever’s left.
November to December (Short Rains)
Afternoon showers, maybe an hour, then sun again. Prices drop. Crowds thin out.
November is a gamble though. I’ve had people report glorious weather and others who got rained on for three straight days. December usually behaves better, especially the second half toward Christmas. Some folks actually prefer this shoulder season because the island feels less like a resort and more like, well, an island.
January to February (Short Dry Season)
Hot. I mean properly hot. Low 30s, humid, the kind of weather where you shower twice a day and still feel damp. But dry. The sea goes glass-calm, diving conditions peak, and if you’re the type who thinks air conditioning was humanity’s greatest invention, you’ll survive.
February brings the Sauti za Busara music festival in Stone Town. Swahili jazz, taarab, Afrobeat. Worth knowing if music matters to you.
March to May (Long Rains)
Skip it.
The masika rains arrive mid-March and stick around until May. Heavy, daily, sometimes all day. Half the beach hotels close entirely. The ones that stay open slash prices to fill rooms, but the experience isn’t what you flew here for. Grey skies, churned water, everything slightly damp and mouldy. Early March might still work if you’re feeling lucky. Late April and May? Don’t.
The Tide Situation
This is the thing that ruins Zanzibar for people who don’t know about it.
On the east coast, places like Paje, Jambiani, Matemwe, the sea doesn’t just go out at low tide. It disappears. I’m talking 300 metres, sometimes more, of exposed sand flat where the ocean used to be. What you get instead is a landscape of tidal pools, sharp coral, sea urchins that will put you in the clinic if you step wrong, and local women bent over wooden stakes farming seaweed. It’s actually beautiful in a strange way. But you’re not swimming.
High tide comes back eventually. But tides shift by about 40 minutes each day, so if high tide is at 3pm today, it’s at 3:40pm tomorrow, and 4:20pm the day after. Plan a week in Jambiani and you might get exactly two mornings where swimming is possible at a reasonable hour.
The north coast, Nungwi and Kendwa, doesn’t have this problem as badly. The beach still changes with tides but stays swimmable most of the day. This is why people pay more to stay up there. I noticed the price difference is substantial: comparable hotels in Nungwi run 30-40% more than east coast equivalents. Worth it if you actually want to swim.
Get reef shoes. Not optional. Sea urchins are everywhere on every beach, and their spines go straight through the sole of your foot. A client in July stepped on one at Matemwe during what he thought was a safe wade at mid-tide. Three spines deep in his heel. The hotel staff spent 45 minutes with tweezers. He limped for the rest of the trip.
The Rock Restaurant in Paje, the one that looks like it’s floating on water in all the photos, is surrounded by ocean at high tide (boat access only) and sitting on dry sand at low tide (walk right up). The restaurant times seatings around this. It’s clever. But if you show up expecting the Instagram shot and the tide is wrong, you’re eating lunch on a sandbar. Book for high tide if the photo matters to you, and check the tide chart for your specific date before making the reservation.
Which Beaches Work Best
Nungwi is where you go if swimming matters. North tip of the island, least affected by tides, you can get in the water pretty much whenever you want. It’s also the most developed, which means restaurants, bars, boat traffic, hawkers on the beach trying to sell you stuff. I noticed during a visit in August that by 10am there were already guys walking the sand offering snorkelling trips, sunset cruises, “my friend has a boat.” It gets tiring. The sunset side faces west so evening drinks work nicely. Still bring reef shoes because sea urchins don’t care which beach you picked.
Kendwa is quieter than Nungwi and might be the nicest beach on the island. Same good tide situation. Full moon parties happen here, which is either a selling point or a warning depending on who you are. I’d skip it if you’re there during full moon and want peace. The parties run until 4am and sound carries.
Paje is for kitesurfers. The combination of wind, tides, and flat water makes it one of the best kiting spots in the world, or so I’m told by people who kite. For swimming, you need to time it around the tides. And in December through February, the seaweed situation on the east coast can get bad. Not “a bit of seaweed on the sand” bad. I mean piles of the stuff rotting in the sun, smelling like low tide in a harbour. One client in January described walking along Paje beach and seeing green-brown mounds every few metres, flies buzzing, the whole stretch looking nothing like the photos. Hotels rake what they can but they can’t control what the ocean delivers. I’d avoid east coast beaches entirely December through February if pristine sand matters to you.
Stone Town isn’t a beach. It’s a UNESCO World Heritage Site with narrow alleys, carved wooden doors, and a history involving sultans, slaves, and spices. Spend a night or two. The evening food market at Forodhani Gardens sells grilled seafood, Zanzibar pizza (it’s a thing), and sugarcane juice. The whole place smells of cloves and charcoal smoke and frying fish. The call to prayer echoes through the streets five times a day. Cover your shoulders and knees here. It’s a Muslim town and people live here, it’s not a beach resort.
One thing that annoyed me about Stone Town: the “helpful” guys who appear the moment you look slightly lost and then expect payment for walking you two blocks. Happened three times in one afternoon. Just say “no thank you” firmly and keep walking.
Combining With a Tanzania Safari
Most people do Zanzibar after safari, not instead of it. The logistics are simple: you finish your last game drive in the Serengeti, drive to an airstrip, fly two hours, land in Zanzibar, transfer to your beach hotel, and you’re drinking something cold by sunset. Daily flights before noon make this seamless.
A typical combo looks like three nights in the Serengeti for the migration and big cats, a day or two in Ngorongoro Crater because the wildlife density there is absurd, then four or five nights on a Zanzibar beach recovering from the early wake-ups and bumpy roads. Throw in a night at Stone Town if history interests you.
A 10-day trip like this runs $5,500 to $7,000 per person sharing, depending on whether you want nice lodges or really nice lodges. The safari eats most of the budget. Zanzibar accommodation ranges from $150/night at solid mid-range places to $600+ at the fancy private villas with butlers and infinity pools.
Plan Your Safari and Beach Trip
The Stuff Nobody Mentions
The seaweed is seasonal and can be disgusting. December through February on the east coast, the ocean dumps rotting vegetation onto the beach faster than hotels can rake it. One client sent me photos from Paje in early January: green-brown piles every few metres, staff with wheelbarrows trying to clear it, the waterline looking more like a compost heap than a tropical beach. The smell carries. Northern beaches get less of it. If you’re booking December-February, either go north or call your specific hotel and ask “What’s the seaweed situation right now?” They’ll tell you honestly.
Zanzibar is a malaria zone. Take the pills. Sleep under nets. The fancy resorts have AC which helps but budget places rely on fans and mosquito nets. Don’t skip prophylaxis because it “seems fine” during the day. Mosquitoes bite at dusk and dawn, and malaria will wreck you.
The ferry from Dar es Salaam costs $35-50, takes two hours, and looks nice in photos. It can also be overcrowded, chaotic, delayed, or cancelled entirely. I had clients miss their connection once because the 7am ferry didn’t leave until 9:30am with no explanation. If your schedule is tight, fly. The 20-minute flight costs $80-100 and removes the drama.
Spice tours are touristy. Do one anyway. Zanzibar was the world’s clove supplier for centuries and the plantations smell incredible. The guides make you taste everything and guess what it is. Kids love it. Adults who think they’re too sophisticated for tourist activities end up enjoying it too. Budget about $25-35 per person including transport. Skip the “premium” tours that cost $60+; they’re the same experience with a fancier lunch.
Ramadan changes the island. During the holy month (dates shift yearly, look it up before booking), local restaurants close during daylight hours. Beach resorts still feed guests but Stone Town gets quiet during the day and lively at night after iftar. Some people find this adds depth. Others find it inconvenient. Know which type you are.
One thing I’d do differently if I were advising someone now: I’d tell them to book two locations. Two or three nights on the east coast for the kitesurfing/seaweed farming atmosphere and the lower prices, then move to Nungwi or Kendwa for the final nights when you want guaranteed swimming. The taxi between costs about $45-50 and takes an hour. Splitting the stay gives you both experiences.
Concerns
Seaweed: maybe, depending on season and beach. Northern beaches less affected. December-February worst on east coast. Ask your specific hotel before booking if it matters to you.
Safety: Zanzibar is fine. Petty theft exists like anywhere. Don’t leave your phone on the beach and wander off. Use hotel safes. Stone Town gets crowded, watch your bag. Violent crime against tourists is rare.
Dress code: bikinis at beach resorts, yes. Stone Town and villages, cover up. Shoulders and knees. It’s basic respect.
Frequently Asked Questions
Best month? July, August, September. Dry, not too hot, good diving.
Is it expensive? Mid-range. Hotels $150-300/night, meals $15-40, activities $50-150.
How many days? 3-5 for beach. Add 1-2 for Stone Town and activities.
Year-round destination? Skip April-May. The rest works with caveats.
Good for honeymoons? Yes. Private villas, sunset cruises, excellent food. Northern beaches especially.
Visa? Zanzibar is part of Tanzania. Most nationalities need a visa, available on arrival or via the Tanzania e-visa portal.
More Reading
Official info: Tanzania Tourist Board. Health stuff including malaria: CDC Tanzania.