What is the weather like in Stone Town in September?

Expect temperatures between 23°C and 29°C with 10% average rain probability and about 8 hours of sunshine daily.

What is the weather like in Stone Town in September?

Stone Town in September scores 62/100 based on 30 years of climate data. Decent conditions for most activities.

Who should visit Stone Town in September?

September in Stone Town is ideal for: Beach lovers, Families with children, Outdoor enthusiasts, Photographers, Cultural tourists.

Stone Town Weather in September | 30-Year Forecast

Avg High

29°C

Hottest around day 27

Avg Low

23°C

Coolest around day 1

Rainy Days

0days

10% avg rain chance

Sunshine

8hrs/day

Autumn season

Sea Temperature in September

Coastal Waters(Ocean)

26.6°C

Monthly Average

Water Feel

🌴Tropical

Perfect for swimming and water sports

Swim Rating

✅Excellent for swimming

Based on average sea surface temperature

Body of Water

Coastal Waters

Ocean

Stone Town coastline

Essential Travel Info for Stone Town

🗓️ Best Time to Visit 📖 Travel Guide 🍴 Food Guide

Currency

TZS

Sh Tanzanian shilling

Language

English

+1 more

Driving

Left side

Safety

Moderate Safety

GPI: 2.001

Travel Intelligence

Exclusive flight analytics & health data for Stone Town

Smart Flight Estimator

Airport-to-Airport Logistics

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Flight Connectivity Analysis

Airport traffic data & seasonal patterns

Low Traffic

36/ 100

Traffic Index

Quieter airport

Peak Daily Arrivals

slots per day

Peak

Aug

Low

Nov

Monthly Traffic Distribution

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Traffic Level

Low Season

Key Connections

Dar es Salaam Julius Nyerere (DAR)

Arusha (ARK)

Chake Pemba (PMA)

Nairobi Jomo Kenyatta (NBO)

Mombasa Moi (MBA)

Health & Safety Advisory

CDC travel health recommendations

10 Recommendations

COVID-19

All eligible travelers should be up to date with their COVID-19 vaccines. Please seeYour COVID-19 Vaccinationfor more information.

Cholera

Active cholera transmission iswidespreadin Tanzania. Cholera is rare in travelers.Certain factorsmay increase the risk of getting cholera or having severe disease (more information). Avoiding unsafe food and water and washing your hands can also help prevent cholera.Vaccination may be considered for children and adults who are traveling to areas of active cholera transmission.

Hepatitis A

Recommended for unvaccinated travelers one year old or older going to Tanzania.Infants 6 to 11 months old should also be vaccinated against Hepatitis A. The dose does not count toward the routine 2-dose series.Travelers allergic to a vaccine component should receive a single dose of immune globulin, which provides effective protection for up to 2 months depending on dosage given.Unvaccinated travelers who are over 40 years old, are immunocompromised, or have chronic medical conditions planning to depart to a risk area in less than 2 weeks should get the initial dose of vaccine and at the same appointment receive immune globulin.

Hepatitis B

Recommended for unvaccinated travelers younger than 60 years old traveling to Tanzania. Unvaccinated travelers 60 years and older may get vaccinated before traveling to Tanzania.

Malaria

CDC recommends that travelers going to certain areas of Tanzania take prescription medicine to prevent malaria. Depending on the medicine you take, you will need to start taking this medicine multiple days before your trip, as well as during and after your trip. Talk to your doctor about which malaria medication you should take.Transmission areasAll areas below 1,800 m (5,900 ft) elevationDrug resistanceChloroquineSpeciesP. falciparum(primarily)P. malariaeandP. ovale(less commonly)P. vivax(rare)Recommended chemoprophylaxisAtovaquone-proguanil, doxycycline, mefloquine, tafenoquine2Updated April 23, 2025See footnotes

Measles

Cases of measles are on the rise worldwide. Travelers are at risk of measles if they have not been fully vaccinated at least two weeks prior to departure, or have not had measles in the past, and travel internationally to areas where measles is spreading.All international travelers should be fully vaccinated against measles with the measles-mumps-rubella (MMR) vaccine, including an early dose for infants 6–11 months, according toCDC’s measles vaccination recommendations for international travel.

+4 more

Source: CDC Travelers' Health

View Complete Health Guide

Is September a Good Time to Visit Stone Town?

👌Decent conditions for most activities(62/100)

Short Answer

September perfect for Stone Town's beaches - 26.6°C water temperature, 29°C days, minimal 10% rain. Book beachfront early as this is peak coastal season.

Decision Factors

Oppressive heat and humidity

29.1°C with 75% humidity - challenging conditions

Vaccinations required

Yellow Fever

Warm tropical seas

26.6°C sea temperature - Tropical Bath

Peak tourist season

90% of annual peak - expect crowds and peak prices

Excellent dry conditions

Only 10% rain probability - ideal for outdoor activities

Health precautions needed

Be aware of: Leptospirosis, Schistosomiasis, African Sleeping Sickness (African Trypanosomiasis)

Good For

🏖️
Beach lovers
26.6°C warm seas and 10% rain probability
👨‍👩‍👧‍👦
Families with children
Comfortable 29.1°C temperatures and low 10% rain risk
🥾
Outdoor enthusiasts
Ideal hiking conditions: 29.1°C, 10% rain chance
📸
Photographers
11.1h sunshine, 66% clear skies for golden hour shots
🏛️
Cultural tourists
Comfortable conditions for exploring museums and sites

Who Should Avoid

💰
Budget travelers
Peak season means premium prices everywhere
👴
Elderly travelers
75% humidity creates difficult conditions
🌡️
Heat-sensitive visitors
34°C feels-like temperature creates discomfort

"According to 30YearWeather's analysis of 30 years of NASA POWER satellite data,Stone Town in September averages 29°C with 10% precipitation probability."

📊 Source: 30YearWeather.com🛰️ Data: NASA POWER (1991-2021)View Methodology →

Frequently Asked Questions: Stone Town in September

What are the temperatures in Stone Town in September?

Daytime highs average 29°C, nights drop to 23°C. Temperatures remain fairly consistent.

How many rainy days in Stone Town in September?

Expect around 0 days with measurable rainfall. Rain is unlikely to disrupt plans.

What to wear in Stone Town in September?

Light, breathable fabrics. Don't forget sunglasses and a hat.

Is September peak season in Stone Town?

This is shoulder season—moderate prices and manageable crowds.

Stone Town Weather in September