One of the most common questions travelers ask us on WhatsApp is simple: "When is the best time to do a dhow safari in Zanzibar?"
The honest answer is that a dhow safari can be enjoyed almost any month of the year — but the experience is very different depending on the season. The sea, the wind, the marine life, and even the price all change from month to month.
This guide breaks down Zanzibar's weather and sea conditions month by month, so you can choose the time that matches what you actually want from your day on the water.
The Short Answer
If you only read one paragraph of this guide, read this one:
But there is more nuance to it than that. Here is the full picture.
Zanzibar's Two Seasons Explained
Zanzibar sits close to the equator, so it does not have winter and summer like Europe or North America. Instead, it has two main seasons driven by trade winds:
- Kaskazi — the northeast monsoon (November to March). Warm, humid, gentle winds from the northeast.
- Kusi — the southeast monsoon (June to September). Cooler, breezier, very stable weather.
Between these two winds lie two rainy seasons: the long rains (Masika) from late March to May, and the short rains (Vuli) in November.
Month-by-Month Overview
| Month | Sea & Weather | Safari Rating |
|---|---|---|
| January | Warm, sunny, calm seas. Peak holiday season. | |
| February | Very warm, calm water, excellent visibility. | |
| March | Warm but increasingly humid. Long rains begin late March. | |
| April | Long rains. Rough seas, low visibility in the water. | |
| May | Still rainy. Seas begin to calm towards the end of the month. | |
| June | Dry, breezy, calm. Excellent conditions begin. | |
| July | Cool, dry, calm, superb visibility. Peak season. | |
| August | Similar to July. Excellent conditions continue. | |
| September | Warm, dry, calm. One of the best months. | |
| October | Warm, gentle winds, very calm water. | |
| November | Short rains. Mixed weather, variable sea. | |
| December | Warm, sunny, calm. Peak holiday season again. |
The Four Seasons in Detail
June – October: The Long Dry Season
This is the classic safari season. The southeast monsoon (Kusi) brings cool, dry air and steady winds that keep the sea calm and the water crystal-clear. Visibility underwater can reach 20–30 meters on good days, making it perfect for snorkeling.
What to expect:
- Calm seas, gentle breeze, low humidity
- Excellent underwater visibility
- Dolphins, sea turtles, and reef fish are abundant
- Cloudless days — sunscreen is essential
Best for: Snorkeling, photographers, families with children, first-time visitors.
December – February: The Northeast Monsoon
Warm, humid, and often sunny. The Kaskazi wind is gentler than the Kusi, and the sea is generally calm — though occasionally rough for a day or two when the wind shifts. This is the busiest tourist season because of the northern hemisphere's winter holidays.
What to expect:
- Very warm sea water (28–30°C)
- Generally calm, with occasional windy days
- Warm, humid air — bring light clothing
- Busier boats and higher prices
Best for: Warm-water lovers, holiday travelers, honeymooners.
March & November: The Transition Months
These are the months when the winds are shifting and the weather is unpredictable. March is the tail end of the dry season before the long rains; November is the short rainy month. Sea conditions can be excellent one week and rough the next.
What to expect:
- Mixed weather — always check the forecast
- Fewer tourists, lower prices
- Occasional rain but plenty of sunny days too
- Sea can be choppy, especially in the afternoon
Best for: Budget travelers, flexible schedules.
April – May: The Long Rains
This is the wet season, and honestly, it is not the best time for a dhow safari. The seas can be rough, the visibility underwater drops significantly, and rain showers are frequent. Many operators reduce their schedules during these months.
What to expect:
- Frequent rain and rough seas
- Poor underwater visibility
- Very few tourists
- Low prices (but very limited availability)
Best for: If you are already in Zanzibar and want to try anyway, some days in late May are workable. Otherwise, avoid.
What About Marine Life?
The Menai Bay Conservation Area is home to dolphins, sea turtles, and hundreds of species of reef fish, all year round. However, certain marine life is more visible in specific seasons:
- Dolphins (bottlenose and spinner): Seen year-round, especially in the early morning. Peak sightings from June to October.
- Sea turtles: Most commonly seen from December to March, when they graze on seagrass beds.
- Whale sharks: Occasional sightings from October to April, though never guaranteed.
- Reef fish: Abundant year-round, but visibility is best June–October.
How Seasons Affect Price
Dhow safari prices in Zanzibar vary by season, mainly because of demand:
- Peak season (June–October, December–February): Prices at their highest. Booking in advance is essential.
- Shoulder season (March, November): Moderate prices. Good value for flexible travelers.
- Low season (April–May): Lowest prices, but many operators are closed.
Our own tour is priced at $85 per person year-round because we prefer honest, transparent pricing — no seasonal price hikes. We do, however, recommend booking at least 3–5 days in advance during peak season.
What About Sea Sickness?
If you are prone to motion sickness, sea conditions matter a lot. The calmest waters are generally in:
- Early morning (before 10 AM) — always the calmest part of the day
- June–October — the Kusi winds stabilize the sea
- January–February — the Kaskazi is typically gentle
The most common time to feel uneasy is late afternoon in March, April, and November. Our captains adjust the route based on real-time conditions — but if you are very sensitive, plan your safari for the calm season.
When Should YOU Book?
- If you want the best conditions: Book June through October.
- If you want warm water and holiday atmosphere: Book December or January.
- If you want fewer crowds and lower prices: Book March or November.
- If you are flexible and want an adventure: Any month is possible — just check the forecast a few days before.
One Last Tip from a Local Crew
Because we sail every day of the year (except when the sea is genuinely unsafe), we see how much the weather can change within a single week. Even in the "best" months, there are occasional windy days. And even in the "worst" months, there are some beautiful mornings.
The lesson: don't over-plan for a specific date. If your trip is flexible, plan your dhow safari for a day when the forecast looks calm — and trust the local crew to tell you the truth about conditions.
Ready to book your dhow safari?
Whatever the season, our local crew will show you the best of Menai Bay. Small groups, honest pricing, since 2010.
Chat on WhatsApp Book OnlineFinal Thoughts
Zanzibar is a year-round destination, and a dhow safari is a year-round experience. The key is knowing what you are looking for — calm seas, warm water, fewer crowds, or lower prices — and choosing the season that matches.
Whichever month you choose, the reefs, the sandbanks, and Kwale Island will be waiting. And so will we.
— The Authentic Dhow Expeditions crew, Fumba Village, Zanzibar