Zanzibar in December 2026: Weather, Things to Do & Local Travel Guide

Looking for a tropical getaway at the end of the year? Zanzibar in December offers opportunities for outdoor sports, tropical scenery, warm seas, and high temperatures. Showers may occur throughout the day, though not necessarily. There may also be showers, particularly in the short-rain season.

December is an interesting month too, as the weather can change from week to week. The first part of December might have rougher weather, and Christmas and New Year's are busier and livelier. This guide covers the weather, water temperature, rain, boat trips, snorkeling, sightseeing and practical travel tips you need when planning your vacation in December 2026. 

What Is Zanzibar in December Weather Like?

Zanzibar in December weather is hot, humid, and tropical. Average daytime highs are around 32°C (90°F), while nighttime temperatures are around 24°C (75°F), according to Weather Atlas.

When you're outside, you'll probably experience the humidity first. These practical tips make sightseeing easier, wearing light clothing and drinking water regularly.

The weather in Zanzibar in December can also include a mix of sunshine, clouds, and tropical showers. That is why it's best to plan with some flexibility rather than assuming the same weather conditions each day. 

December Weather at a Glance

The following is a brief overview of the average conditions for Zanzibar in December, so you can see what to expect on your holiday before you book it. 

Average values may differ slightly based on the method of data collection used for weather datasets. For instance, WeatherSpark lists average day temperatures in December to be in the low 80's, while Weather Atlas states that day temperatures are around 32°C/89.6°F. 

How Rainy Is Zanzibar in December?

When you are planning your holiday in December, it is important to know about the rainy season in Zanzibar. Zanzibar experiences two main rainy periods. Shorter rains generally known as Vuli, come towards the end of the year. It is a transitional month in December, so there is a possibility for rain during that month. It doesn't mean your vacation will be entirely rainy.

According to WeatherSpark's historical data, the chances of a wet day drop from about 36% at the beginning of December to about 30% by the end. The sliding 31-day rainfall average also drops slightly during the month. 

Does It Rain All Day in December?

Not necessarily. Tropical weather is highly dynamic. Clouds may be present in the morning and a shower may follow, but the outdoor weather may be fine. Once in Zanzibar, look at the short-range forecast for the Zanzibar weather. They are far more valuable in planning future activities than a monthly rainfall average.

Some simple steps can help:

• Look at the weather forecast daily.

• Have outside plans as flexible as possible.

• Pack an extra light rain jacket.

• Keep phones and cameras dry if it suddenly rains.

• Have an alternative activity ready.

• If the weather forecast is unpredictable, confirm boat trips. 

Zanzibar Water Temperature and Sea Conditions in December

The warm Indian Ocean is one of the highlights of Zanzibar in December. According to the Weather Atlas the average temperature of the sea in December is approximately 28.4°C or 83.1°F. WeatherSpark also shows the mean surface water temperature near 83°F for the month.

This is a comfortable temperature for most people for swimming and longer periods in water. 

Is the Water Warm Enough for Swimming?

Yes. It's rare to get cold water in December. Zanzibar's pleasant weather makes swimming, snorkeling, and other water sports enjoyable during the whole month. But the temperature of the water is not the whole story. Depending on the weather, including wind, waves, currents, rain, and tide, the water may or may not feel comfortable on a given day.

The warm water also allows you to spend more time in the water or exploring the coast. For an ideal experience, select a beach that is safe, and check all local safety information before entering the water. 

Are December Conditions Good for Snorkeling?

A monthly weather average does not guarantee visibility or sea conditions in December, but it can offer opportunities to go snorkeling. Sea conditions such as rain, waves, wind and currents can alter the visibility under water. This can also vary from one location on the island to another.

If you are interested in exploring marine life, then read about the best snorkeling in Zanzibar before you go somewhere. Always check conditions before entering the water and take advice from your captain or local guide. 

What About the Tides?

Tides are an important factor of travel in Zanzibar. Certain beaches vary significantly between high and low tide. In some areas, water can flow far from shore during low tide and in other places, the water is easier to swim in. Always observe local tide times before heading to the beach for a day, snorkeling trip or water activity. 

Planning around the tides can help you make better use of your beach time. If you want to swim or snorkel, look at the tide tables and consult your hotel, guide, or boat contact about the best time to visit the area you are interested in. 

Top Things to Do in Zanzibar During December

Perfect sunshine all day long is not required to enjoy Zanzibar in December. The simplest plan is to combine beach and boat entertainment with sightseeing of the culture. There are many things to do in Zanzibar, so leave enough flexibility to change your schedule when the weather does. 

Spend Time in Kendwa and Nungwi

A beach holiday in northern Zanzibar is highly recommended. Take time to enjoy the water, unwind on the sand, discover the surroundings and organize a private experience. If you wish to include this part of the island on your travel plan, look into the Kendwa & Nungwi private tours.

Don't try to accomplish everything in one day. The slower pace of December can be more enjoyable when the weather is warm and humid. 

Explore Stone Town

You don't have to waste a morning or day if it's cloudy, or there are showers. Stone Town offers a different perspective of Zanzibar, its historic buildings, bazaars and culture. For a more structured experience, you can go and take a Stone town private tour.

If you want more variety in the area, look at all stone town tours to choose the one that suits your time.

Enjoy a Private Sunset Dhow Cruise

A sunset dhow cruise is a way to get a taste of the coast without taking on a whole day at sea.

If you want an evening experience around Kendwa, the private Kendwa beach sunset dhow cruise is an option.

Always consult the same-day forecast before travelling as evening weather can still be cloudy and showery. 

Relax on a Private Catamaran Cruise

A private boat can help you get your family, friends, or couples a private area when you're traveling with others. Depending on the weather and the sea conditions, a private catamaran cruise can be scheduled into the cruise itinerary.

Try to make the rest of your day as flexible as possible if you have to change your departure time or plans. 

Try Deep-Sea Fishing in Zanzibar

Another means of fishing is provided as an experience to the Indian Ocean. If you're looking for a Zanzibar deep sea fishing charter, you can add something new to your beach-focused tour.

Don't select a fishing day solely because of temperature. Weather, waves, and offshore wind also are important. If conditions are uncertain, follow the captain's recommendation. 

Christmas and New Year in Zanzibar

During the month of December as we get closer to Christmas and New Year, the atmosphere changes. The festive season can be a busy time for hotels, restaurants, beachside spots and popular activities. Plan important activities prior to arrival if visiting Zanzibar at this time.

Don't plan every minute of your holiday. Prioritize the experiences you care about the most, and then schedule some flexibility in your travel plans. This is especially useful when you have an existing plan that is changed by a shower or change in sea state. 

How Does December Compare With Other Months?

You can gain a better idea of how Zanzibar in December is compared to drier and wetter months of the year by looking at surrounding months.

• August: This month is normally cooler and drier than December. For those of you who don't want to see the wet season then read our guide to Zanzibar in August.

• September: It is usually drier in September, and December is hotter and more humid with some risk of showers. See our Zanzibar in September guide for more details.

• October: This is the time of the year when the short-rain season begins, and December is approaching the end of the wetter period. Compare these conditions in our Zanzibar in October guide.

• November: November is more synonymous with the short rains and December begins to transition into drier conditions. Check out our Zanzibar in November guide and make a comparison between the two months. 

What to Pack for Zanzibar in December

When packing for Zanzibar in December you are mainly packing for heat and sunshine, humidity and a few drops of rain.

Bring:

• Lightweight, breathable clothing

• Swimwear

• Comfortable sandals

• Walking shoes

• Sunglasses

• A sun hat

• High-SPF sunscreen

• Insect repellent

• A reusable water bottle should be used.

• A light rain layer

• A waterproof cell phone case

• A small dry bag for use when travelling in a boat.

It's also beneficial to have more clothing that covers the body when visiting towns, villages and cultural sites. Even when it's cloudy, remember sun protection. It is possible to get enough exposure to the sun's UV rays in the tropics without the sky being clear. 

Tips for Traveling in Zanzibar in December

A good Zanzibar travel guide should be able to assist you in making daily plans based on actual events rather than merely monthly weather averages.

Here are some basic tips:

Look at the daily forecast in the morning.

• Check hourly rain probabilities prior to outdoor activities.

• Check tides prior to beach visits.

• Please confirm boat trips before leaving the accommodation.

• Consume water throughout the day.

• Take breaks from the midday heat.

• Have an indoor or land-based activity planned in case it rains.

• Keep electronics away from flash floods.

• Follow your captain's advice about sea conditions.

• Book Christmas and New Year experiences early.

Above all, don't let one rainy day ruin your vacation. Things change and one wet day is no indication of the rest of the week. 

Final Thoughts

As Christmas and New Year come closer, Zanzibar in December is hot, with warm Indian Ocean water, some showers and a vibrant atmosphere. Be flexible with plans, check the weather before heading outdoors and follow your captain's guidance when weather changes.

When the weather is suitable, you can enjoy snorkeling, dhow cruises, catamaran trips, fishing, and relaxing days along the coast. Check out Zanzibar boat tours to see how you can get the best experience, or reach us on WhatsApp for a recommendation on which boat tour to take on your December vacation.