30YearWeather
Montevideo, September 19
Montevideo street view during September
Historical Weather Analysis

Montevideo Weather on September 19 — Best Time to Visit?

Based on 30 years of historical data, we have the answer.

partly-cloudy-day

16.4°C

High

11.1°C

Low

18%

Rain

🌤️ Feels like 16.4°C

partly-cloudy-day
YES, GOOD CHOICE
Peak Season

September 19 is generally a great time to visit Montevideo. While there is a slight chance of rain (18%), showers are usually brief. Expect comfortable 16°C weather. Expect a bustling atmosphere in Montevideo right now—this is when the city truly comes alive with visitors.

Currency

UYU

$ Uruguayan peso

Language

Spanish

Driving

Right side

Safety

High Safety

GPI: 1.795

Montevideo Weather Forecast for September 19

"Mild & Comfortable. Expect average highs of 16.4°C. 18% chance of rain."

What to Wear in Montevideo in September

Based on historical data for September 19, Montevideo typically experiences temperatures between 11.1°C and 16.4°C. We recommend packing light jacket, long pants to stay comfortable. Trends suggest it will stay mostly dry (18% rain probability), but checking the forecast before heading out is always wise.

Complete Packing Guide

Weekly breakdown & essential items for Montevideo

View Guide

Smart Suitcase

  • Light Jacket
  • Long Pants

Average High

extreme-hot

16.4°C

Daytime Peak

Average Low

extreme-cold

11.1°C

Nighttime Low

Feels Like

partly-cloudy-day

16.4°C

🌤️ Feels accurate

Rain Chance

rain

18%

Avg 1.4mm if it rains

Cloud Cover

cloudy

53%

Overcast

Pressure

pressure

1017.1 hPa

Medium volatility

Montevideo Weather Conditions & UV Index

Weather Confidence

30-year variance analysis

92%Highly Predictable

Based on 10 years of data

Temperature
±3.3°CModerate
Precipitation
9-30%Predictable

🎯 This date historically delivers consistent weather 92% of the time. Safe to plan outdoor activities with confidence.

Sun Exposure

UV Index & Safety Guide

3.1Moderate
036811+

Protection Needed

SPF 30 recommended

Safe Sun Windows
Morning

06:00 - 10:00

Afternoon

16:00 - 18:00

Time to Sunburn

Type I-II

🔴 26 min to burn

Type III-IV

🟡 39 min to burn

Type V-VI

🟢 65 min to burn

UV estimate based on latitude, season & cloud cover. Actual UV may vary.

Outdoor Comfort

How pleasant is it outside?

71Good
TemperatureMild
HumidityMuggy
WindBreezy

Dew Point

12.6°C

Pleasant

Heat Stress

Low

No heat warning

🙂 Best outdoor time:
Any time during daylight hours

Marine Conditions

Water Temp
15°C
🥶 Polar Plunge
Avg daily surface temperature
Surf Conditions
0.68m
🌊 Fun Waves
Max daily wave height
Advisories

Marine Life

No special warnings. Enjoy the swim!

Swim Index

❄️ Cold Water Hazard

Travel & Logistics Insights

Local Calendar

Business Day

Standard hours in Uruguay

Flight Traffic

High

92/100 pressure index

Health Advisory

Recommended

1 vaccine • View Details →

Landing Slots

~24

Daily arrival options (inc. codeshare)

Sunrise, Sunset & Wind in Montevideo

Daylight & Sun

Solar Elevation Cycle

🌅 Sunrise

06:39

☀️ Noon

12:39

🌇 Sunset

18:39

⏱️ Daylight

11h 59m

Golden Hour
Morning06:39 - 07:13
18:06 - 18:39Evening

Wind Speed

wind

21.7 km/h

Moderate wind

Sunshine

clear-day

8.7 hrs

Direct Sun (Cloud-free)

Humidity

humidity

78%

Humid / Damp

Travel Intelligence

Exclusive flight analytics & health data for Montevideo

Smart Flight Estimator

Airport-to-Airport Logistics

unlock smart flight estimates

Add your home location in settings to see airport details.

Travel Health & Safety in Montevideo

Travel Comfort Index

Real-time tourism conditions

Weather Quality

☀️ Excellent

86/100

Tourist Crowds

🟡 Busy

85/100

Price Level

💰💰💰 Expensive

90/100

Health & Wellbeing

Meteo-Health Forecast

85Score
Atmospheric Pressure1017.1 hPa
Volatility:Medium
Migraine RiskMedium

Moderate fluctuations. Some sensitivity possible.

Joint Pain RiskLow

Weather unlikely to affect joint pain.

Fishing IndexFair

Moderate fish activity expected.

Air Quality Forecast
39AQI
Good
PM2.5 Concentration5.6 µg/m³

Air quality is excellent. Perfect for outdoor activities.

Regional Safety Profile

Stable

Seismic Activity

Zero seismic activity detected in 30 years.

Total events (30y):0
💡 No earthquake preparedness needed. Enjoy your stay!
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Montevideo on September 19 averages 16.4°C with a 18% precipitation probability. Wedding/Outdoor Event Score: 90/100."

— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology

Montevideo Weather History (2010–2024)

Temperature History

Loading chart...

Hall of Fame

Records from last 10 years

Hottest
2024
22.1°C
Coldest
2020
7.6°C
Rainiest
2024
13.7mm

Better Alternatives Nearby

Consider these dates within ±7 days

💡 Moving your event by a few days could significantly improve weather conditions

Compare Other Cities

Same date (September 19) in other destinations

🌍 Explore the same date in different destinations around the world

📍 Is Montevideo Worth Visiting on September 19?

Planning a trip to Montevideo on September 19? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year is characterized by pleasant mild weather averaging 16.4°C with a 18% historical precipitation risk.

✈️ Travel Logistics: Approximately 24 landing slots available daily during this period, indicating manageable crowd levels.

💉 Health Advisory: 7 vaccinations are recommended for Uruguay, including COVID-19.

🌊 Coastal Conditions: Water temperature averages 15°C (polar plunge). Wave conditions are generally fun waves with heights around 0.68m.

📊 Historical Extremes: The hottest September 19 recorded in the last 30 years saw temperatures hit 22.1°C in 2024, while the coldest dropped to 7.6°C in 2020.

Montevideo Weather FAQ