The month in detail
What to expect in September
Autumn in Mexico City is often underrated: 72°F, golden light and declining crowds. An interesting window. With 49% of rainy days, always have indoor alternatives planned. Not the best window, but acceptable if dates are constrained. March (9.1/10) is significantly better if possible.
September ranks 11 out of 12 months in Mexico City. Compared to August: −2°F daytime, 8 pts fewer rainy days, −0.8h of sun per day.
This month's conditions
What it's like in September
UV index
8 · very high
protection essential
Feels like
comfortable
12°
Daylight
12.1h of daylight
Air quality
fair
AQI 44
Compare
Is September the right month?
The best month in Mexico City is March (9.1/10), 1.9 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 · Mexico City
Expedia →
Activities
Tours, tickets, experiences
See ↓
Flights
Multi-airline comparator
Kiwi →
🎟️ Activities & tours · Mexico City
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 city break.
Country · Mexico
🗣️LanguageSpanish
💶CurrencyMexican Peso ($)
🚗DrivingRight-hand
🛡️Safety ⓘVery safe · 1/5
💰Cost of living ⓘCheap · 2/5
🌡️ Climate
🌍Climate typeTemperate
📈Climate trend ⓘ+2.98°F/decade
🔥Hottest monthApril · 82°F
❄️Coolest monthJanuary · 72°F
🌧️Rainiest month ⓘAugust · 57%
🏛️ City break
📅Tourist peak seasonJune → August
☔Indoor sights ⓘYear-round
🚇Public transportGood
Explore
Other destinations in September
If September doesn't convince you for this destination, compare with others.
Location
Where is Mexico City ?
Global position + regional geographic context.
🌍 World
🔍 Geographic context
MexicoTemperate climate with a 9.1 → 7.2 gap between best and worst month. 10 years of ERA5 data to choose by project.
19.43°N · 99.13°W
Questions
Frequently asked questions
What is the best time to visit Mexico City?
March is the best month with 81°F highs, 52°F lows, 8.5h of sunshine and 7.0% rainy days. The months of March & April offer comparable conditions.
How many hours of sunshine does Mexico City get in March?
Mexico City averages 8.5 sunshine hours per day in March. It is the sunniest month with a climate score of 8.7/10.
What is the rainiest month in Mexico City?
July is the most unfavourable month with July has the lowest climate score of the year and the lowest climate score of the year.
What are the temperatures at night in Mexico City in March?
In March, overnight lows reach 52°F, while afternoon highs average 81°F.
Is Mexico City good in winter?
In winter (December-February), Mexico City scores 8.2/10 on average — Acceptable conditions for cultural visits.. The best month overall remains March with a score of 8.7/10.
When should you avoid Mexico City?
July is the most difficult month to visit Mexico City, with July has the lowest climate score of the year. Climate conditions are at their lowest of the year during this period.
Do you need sun protection in Mexico City in September?
The average UV index reaches 8 in September in Mexico City (very high), with about 12.1h of daylight. Protection essential.