The month in detail
What to expect in September
Spring marks the start of the good season in Montevideo. Temperatures rise (61°F) and tourists have not yet arrived en masse. Rain risk remains low (23% of days), leaving good room for outdoor activities. Not the best window, but acceptable if dates are constrained. January (8.8/10) is significantly better if possible.
September ranks 9 out of 12 months in Montevideo. Compared to August: +2°F daytime, +0.7h of sun per day.
This month's conditions
What it's like in September
UV index
6 · moderate
protect during midday hours
Feels like
dry air
10°
Sea
15°C
cold, for the brave
Daylight
11.8h of daylight
Air quality
good
AQI 24
Compare
Is September the right month?
The best month in Montevideo is January (8.8/10), 1.6 pt higher than September.
Book
Plan your trip
Hotels at their lowest outside peak season, highest on comfortable months. Shoulder seasons offer a good price/climate compromise.
Stay
Hotels & rentals · Montevideo
Expedia →
Activities
Tours, tickets, experiences
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Flights
Multi-airline comparator
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🎟️ Activities & tours · Montevideo
GetYourGuide selection · free cancellation
Practical info
What you need to know before you go
Three angles: the country (language, currency, safety, budget), the year-round climate, and the specifics of a beach trip.
Country · Uruguay
🗣️LanguageSpanish
💶CurrencyPeso uruguayen ($)
🚗DrivingRight-hand
🛡️Safety ⓘVery safe · 1/5
💰Cost of living ⓘModerate · 3/5
🌡️ Climate
🌍Climate typeTemperate oceanic
📈Climate trend ⓘStable
🔥Hottest monthJanuary · 79°F
❄️Coolest monthJuly · 55°F
🌧️Rainiest month ⓘApril · 23%
🏖️ Beach trip
📅Peak seasonJuin → Sept
🏖️Swell (Sept–Mar) ⓘModérée
Explore
Other destinations in September
If September doesn't convince you for this destination, compare with others.
Location
Where is Montevideo ?
Global position + regional geographic context.
🌍 World
🔍 Geographic context
UruguayTemperate oceanic climate with a 8.8 → 4.2 gap between best and worst month. 10 years of ERA5 data to choose by project.
34.90°S · 56.19°W
Questions
Frequently asked questions
What is the best time to visit Montevideo?
January is the best month with 79°F highs, 68°F lows, 9.5h of sunshine and 19.0% rainy days. The months of January & February offer comparable conditions.
How many hours of sunshine does Montevideo get in January?
Montevideo averages 9.5 sunshine hours per day in January. It is the sunniest month with a climate score of 8.3/10.
What is the rainiest month in Montevideo?
June is the most unfavourable month with June has the lowest climate score of the year and the lowest climate score of the year.
What are the temperatures at night in Montevideo in January?
In January, overnight lows reach 68°F, while afternoon highs average 79°F.
Is Montevideo good in winter?
In winter (December-February), Montevideo scores 8.1/10 on average — Acceptable conditions for cultural visits.. The best month overall remains January with a score of 8.3/10.
When should you avoid Montevideo?
June is the most difficult month to visit Montevideo, with June has the lowest climate score of the year. Climate conditions are at their lowest of the year during this period.
Can you swim in Montevideo in September?
In September, the sea averages 59°F in Montevideo: cold, for the brave. Best left to hardened swimmers or those with a wetsuit.
Do you need sun protection in Montevideo in September?
The average UV index reaches 6 in September in Montevideo (moderate), with about 11.8h of daylight. Protect during midday hours.