What is the weather like in Montevideo in September?

Expect temperatures between 11°C and 16°C with 19% average rain probability and about 8 hours of sunshine daily.

What is the weather like in Montevideo in September?

Montevideo in September scores 65/100 based on 30 years of climate data. Recommended for planning your trip.

Who should visit Montevideo in September?

September in Montevideo is ideal for: Outdoor enthusiasts, Cultural tourists, Honeymoon couples, Business travelers.

Montevideo Weather in September | 30-Year Forecast

Avg High

16°C

Hottest around day 30

Avg Low

11°C

Coolest around day 4

Rainy Days

2days

19% avg rain chance

Sunshine

8hrs/day

Autumn season

Sea Temperature in September

Coastal Waters(Ocean)

14.2°C

Monthly Average

Water Feel

🥶Polar Plunge

Consider a wetsuit for extended swimming

Swim Rating

❄️Cold water hazard

Based on average sea surface temperature

Body of Water

Coastal Waters

Ocean

Montevideo coastline

Essential Travel Info for Montevideo

🗓️ Best Time to Visit 📖 Travel Guide 🍴 Food Guide

Currency

UYU

$ Uruguayan peso

Language

Spanish

Driving

Right side

Safety

High Safety

GPI: 1.795

Travel Intelligence

Exclusive flight analytics & health data for Montevideo

Smart Flight Estimator

Airport-to-Airport Logistics

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Flight Connectivity Analysis

Airport traffic data & seasonal patterns

Remote

10/ 100

Traffic Index

Off the beaten path

Peak Daily Arrivals

slots per day

Peak

Dec

Low

Nov

Monthly Traffic Distribution

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Traffic Level

Low Season

Key Connections

São Paulo Guarulhos - Governador André Franco Montoro (GRU)

Tocumen (PTY)

Santiago Comodoro Arturo Merino Benítez (SCL)

Buenos Aires Jorge Newbery Airpark (AEP)

Rio de Janeiro RIOgaleão – Tom Jobim (GIG)

Health & Safety Advisory

CDC travel health recommendations

7 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.

Hepatitis A

Recommended for unvaccinated travelers one year old or older going to Uruguay.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 of all ages traveling to Uruguay.

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.

Rabies

Dogs infected with rabies are not commonly found in Uruguay.Rabies is present in some terrestrial wildlife species.If rabies exposures occur while in Uruguay, rabies vaccines may only be available in larger suburban/urban medical facilities.Rabies pre-exposure vaccination considerations include whether travelers 1) will be performing occupational or recreational activities that increase risk for exposure to potentially rabid animals and 2) might have difficulty getting prompt access to safe post-exposure prophylaxis.Please consult with a healthcare provider to determine whether you should receive pre-exposure vaccination before travel.For more information, seecountry rabies status assessments.

+1 more

Source: CDC Travelers' Health

View Complete Health Guide

Is September a Good Time to Visit Montevideo?

👍Recommended for planning your trip(65/100)

Short Answer

Montevideo in September features 14.2°C seas - too cold for swimming but stunning for coastal walks. Air temperatures average 16°C with 19% rain probability.

Decision Factors

Peak tourist season

92% of annual peak - expect crowds and peak prices

Cold sea - swimming challenging

14.2°C sea temperature - Polar Plunge

Health precautions needed

Be aware of: Leptospirosis, Chagas disease (American Trypanosomiasis), New World Screwworm Myiasis

Plenty of sunshine

8.4h of sunshine daily

Good For

🥾
Outdoor enthusiasts
Ideal hiking conditions: 15.8°C, 19% rain chance
🏛️
Cultural tourists
Comfortable conditions for exploring museums and sites
💑
Honeymoon couples
Wedding score 91/100 with romantic weather conditions
💼
Business travelers
Climate-controlled meetings unaffected by weather

Who Should Avoid

🏖️
Beach lovers
Sea temperature only 14.2°C - too cold for comfortable swimming
💰
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,Montevideo in September averages 16°C with 19% precipitation probability."

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

Frequently Asked Questions: Montevideo in September

What are the temperatures in Montevideo in September?

Daytime highs average 16°C, nights drop to 11°C. Temperatures remain fairly consistent.

How many rainy days in Montevideo in September?

Expect around 2 days with measurable rainfall. Rain is unlikely to disrupt plans.

What to wear in Montevideo in September?

Layers are key. A medium-weight jacket and closed-toe shoes.

Is September peak season in Montevideo?

This is shoulder season—moderate prices and manageable crowds.

Montevideo Weather in September