What is the weather like in Mombasa in September?

Expect temperatures between 23°C and 28°C with 16% average rain probability and about 8 hours of sunshine daily.

What is the weather like in Mombasa in September?

Mombasa in September scores 65/100 based on 30 years of climate data. Very good conditions overall.

Who should visit Mombasa in September?

September in Mombasa is ideal for: Beach lovers, Outdoor enthusiasts, Photographers, Cultural tourists, Honeymoon couples.

Mombasa Weather in September | 30-Year Forecast

Avg High

28°C

Hottest around day 30

Avg Low

23°C

Coolest around day 1

Rainy Days

0days

16% 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

Mombasa coastline

Essential Travel Info for Mombasa

🗓️ Best Time to Visit 📖 Travel Guide 🍴 Food Guide

Currency

KES

Sh Kenyan shilling

Language

English

+1 more

Driving

Left side

Connect

Mombasa has several post offices open M-...

Safety

Moderate Safety

GPI: 2.303

Travel Intelligence

Exclusive flight analytics & health data for Mombasa

Smart Flight Estimator

Airport-to-Airport Logistics

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Flight Connectivity Analysis

Airport traffic data & seasonal patterns

Remote

14/ 100

Traffic Index

Off the beaten path

Peak Daily Arrivals

slots per day

Peak

Mar

Low

Nov

Monthly Traffic Distribution

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Traffic Level

Low Season

Key Connections

Nairobi Jomo Kenyatta (NBO)

Nairobi Wilson (WIL)

Zanzibar Abeid Amani Karume (ZNZ)

Addis Ababa Bole (ADD)

Lamu Manda Airstrip (LAU)

Health & Safety Advisory

CDC travel health recommendations

13 Recommendations

COVID-19

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

Chikungunya

All travelers should take steps to prevent mosquito bites. Chikungunya vaccination is generally not recommended. Travelers who wish to consider vaccination can visit “What to consider before traveling” on thechikungunya vaccinespage to learn more.

Cholera

Areas of active cholera transmission arelocalizedto the counties of Garissa (last case reported 3-6 months ago), Kisumu (last case reported 6-9 months ago), Kwale (last case reported 6-9 months ago), Migori (last case reported in the past 3 months), Mombasa (last case reported 6-9 months ago), Nairobi (last case reported in the past 3 months), Narok (last case reported in the past 3 months), and Turkana (last case reported 3-6 months ago) in Kenya. 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 Kenya.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 Kenya. Unvaccinated travelers 60 years and older may get vaccinated before traveling to Kenya.

Malaria

CDC recommends that travelers going to certain areas of Kenya 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 (including game parks) <2,500 m (<8,200 ft) elevation; rare cases in the highly urbanized central part of the city of Nairobi (the capital)Drug resistanceChloroquineSpeciesP. falciparum(primarily)P. malariae,P. ovale, andP. vivax(less commonly)Recommended chemoprophylaxisAtovaquone-proguanil, doxycycline, mefloquine, tafenoquine2Highly urbanized central part of the city of Nairobi: No chemoprophylaxis recommended (insect bite precautions and mosquito avoidance only)4Updated April 23, 2025See footnotes

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Source: CDC Travelers' Health

View Complete Health Guide

Is September a Good Time to Visit Mombasa?

👍Very good conditions overall(65/100)

Short Answer

Beach lovers rejoice: Mombasa's September features 26.6°C sea temperatures alongside 28°C air temps. Just 16% rain risk makes this prime swimming season.

Decision Factors

Vaccinations required

Yellow Fever

Warm tropical seas

26.6°C sea temperature - Tropical Bath

Rough sea conditions

1.54m average wave height - Surfers Only

Peak tourist season

89% of annual peak - expect crowds and high prices

Health precautions needed

Be aware of: Leptospirosis, Melioidosis, Schistosomiasis

Plenty of sunshine

10.9h of sunshine daily

Good For

🏖️
Beach lovers
26.6°C warm seas and 16% rain probability
🥾
Outdoor enthusiasts
Ideal hiking conditions: 27.5°C, 16% rain chance
📸
Photographers
10.9h sunshine, 55% clear skies for golden hour shots
🏛️
Cultural tourists
Comfortable conditions for exploring museums and sites
💑
Honeymoon couples
Wedding score 97/100 with romantic weather conditions

Who Should Avoid

💰
Budget travelers
Peak season means premium prices everywhere
👴
Elderly travelers
78% humidity creates difficult conditions

"According to 30YearWeather's analysis of 30 years of NASA POWER satellite data,Mombasa in September averages 28°C with 16% precipitation probability."

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

Frequently Asked Questions: Mombasa in September

What are the temperatures in Mombasa in September?

Daytime highs average 28°C, nights drop to 23°C. Temperatures remain fairly consistent.

How many rainy days in Mombasa in September?

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

What to wear in Mombasa in September?

Comfortable casual wear with a light jacket for evenings.

Is September peak season in Mombasa?

This is typically peak season with higher prices. Book 2-3 months ahead.

Mombasa Weather in September