30YearWeather
Stone Town in May
Stone Town weather in May - Tanzania
😊Warm & Pleasant

Stone Town Weather in May

Plan your May trip to Stone Town, Tanzania. Based on 30 years of NASA data, expect temperatures of 28°C (high) to 24°C (low), with 40% rain probability and 8 hours of daily sunshine. The Coastal Waters averages 28°C in May. Pack rain gear for around 30 rainy days.

Avg High
28°C

Hottest around day 16

Avg Low
24°C

Coolest around day 30

Rainy Days
30days

40% avg rain chance

Sunshine
8hrs/day

Spring season

Sea Temperature in May

Coastal Waters(Ocean)

28.4°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

Stone Town May Weather Calendar

Click any day to see detailed weather information

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

0

slots per day

Peak

Aug

Low

Nov

Monthly Traffic Distribution

77
Jan
86
Feb
85
Mar
76
Apr
84
May
76
Jun
81
Jul
91
Aug
82
Sep
82
Oct
69
Nov
73
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 May a Good Time to Visit Stone Town?

👌Decent conditions for most activities
Short Answer

Stone Town during May means embracing the rain (40%, 3mm typical). Some activities may be affected, but the lush landscapes and fewer tourists can be rewarding.

Decision Factors

Oppressive heat and humidity

28°C with 82% humidity - challenging conditions

Vaccinations required

Yellow Fever

Warm tropical seas

28.4°C sea temperature - Tropical Bath

Peak tourist season

92% of annual peak - expect crowds and peak prices

Health precautions needed

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

Plenty of sunshine

9.7h of sunshine daily

Good For

  • 🏛️
    Cultural tourists

    Comfortable conditions for exploring museums and sites

  • 💼
    Business travelers

    Climate-controlled meetings unaffected by weather

Who Should Avoid

  • 💰
    Budget travelers

    Peak season means premium prices everywhere

  • 👴
    Elderly travelers

    82% humidity creates difficult conditions

930 observations30-year historical data
Confidence: 99%

"According to 30YearWeather's analysis of 30 years of NASA POWER satellite data,Stone Town in May averages 28°C with 40% precipitation probability."

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

Frequently Asked Questions: Stone Town in May

What are the temperatures in Stone Town in May?

Daytime highs average 28°C, nights drop to 24°C. Temperatures remain fairly consistent.

How many rainy days in Stone Town in May?

Expect around 30 days with measurable rainfall. An umbrella is advisable.

What to wear in Stone Town in May?

Comfortable casual wear with a light jacket for evenings.

Is May peak season in Stone Town?

This is shoulder season—moderate prices and manageable crowds.