Things to Do in Mexico City in September
September weather, activities, events & insider tips
Low Season · Budget Friendly
September Weather in Mexico City
Temperature, rainfall and humidity at a glance
74°F (23°C)
High Temp
55°F (13°C)
Low Temp
6.2 inches (157 mm)
Rainfall
70%
Humidity
⚠ Sudden afternoon thunderstorms create flash flooding in underpass areas - avoid walking through flooded streets near Reforma Avenue
⚠ Lightning frequently strikes the city's tallest buildings - if you're in Torre Latinoamericana or Chapultepec Castle when storms hit, staff will move you away from windows
Is September Right for You?
Weigh the advantages and considerations before booking
Advantages
- + September brings the tail end of rainy season, meaning 70% fewer tourists and hotel rates that drop 30-40% from summer peaks - you'll get tables at Contramar and Pujol without booking months ahead
- + The city's 300-year-old markets overflow with late-summer produce: chiles poblanos turn fire-engine red, mangos reach their final harvest, and vendors at Mercado de San Juan hawk wild mushrooms that only appear during these rains
- + Morning light hits different in September - crystal clear after overnight storms, good for photography at Teotihuacán when crowds are thin and vendors haven't yet set up their trinket stalls along the Avenue of the Dead
- + Independence Day celebrations transform the Zócalo into Mexico's biggest party on September 15th - the grito (cry for independence) happens at 11pm sharp, followed by mariachis playing until dawn while families pass around tamales and atole
Considerations
- − Afternoon thunderstorms roll in fast and hard around 3pm most days - not gentle drizzles but tropical downpours that flood Reforma Avenue's underpasses and turn the metro into a humid sauna
- − The combination of 70% humidity and 74°F (23°C) afternoons means you'll sweat through clothes by noon - cotton shirts take two days to dry on hotel balconies, and leather shoes grow mold if you don't pack them with newspaper
- − Some outdoor attractions close early or limit access - the canals of Xochimilco shut down boat tours when lightning appears, and Chapultepec Park's trails turn to mud that'll ruin white sneakers permanently
Year-Round Climate
How September compares to the rest of the year
| Month | High | Low | Rainfall |
|---|---|---|---|
| Jan | 22°C | 8°C | 0.5 inches (13 mm) |
| Feb | 24°C | 9°C | 0.2 inches (5 mm) |
| Mar | 26°C | 11°C | 0.5 inches (13 mm) |
| Apr | 27°C | 13°C | 1.0 inches (25 mm) |
| May | 27°C | 13°C | 2.3 inches (58 mm) |
| Jun | 25°C | 13°C | 5.2 inches (132 mm) |
| Jul | 24°C | 13°C | 6.9 inches (175 mm) |
| Aug | 24°C | 13°C | 6.9 inches (175 mm) |
| Sep | 23°C | 13°C | 6.2 inches (157 mm) |
| Oct | 23°C | 11°C | 2.8 inches (71 mm) |
| Nov | 22°C | 9°C | 0.7 inches (18 mm) |
| Dec | 22°C | 8°C | 0.2 inches (5 mm) |
Best Activities in September
Top things to do during your visit
Historic Center Food Tours
September's cool mornings are good for walking tours through Centro Histórico - the smell of fresh tortillas drifts from 6am vendors while you sample atole and tamales before the rains hit. Afternoon showers drive crowds indoors, leaving the best taquerías half-empty around 4pm.
Booking Tip: Book morning tours starting 9-10am - you'll finish before afternoon storms and catch markets at their freshest. Licensed operators typically include metro cards and tastings at 4-5 stops.
Teotihuacán Pyramids Early Access
September's post-rain air clears the Valley of Mexico's usual smog - climb the Pyramid of the Sun at 8am and you might see Popocatépetl volcano 64 km (40 miles) away. Morning temperatures stay comfortable until 11am, and tour buses don't arrive en masse until after breakfast.
Booking Tip: Arrange 7am hotel pickup - the site opens at 8am and you'll have two hours before crowds. Bring a light jacket for the 55°F (13°C) morning start.
Xochimilco Trajinera Boat Rides
Late September sees fewer bachelor parties and more local families - the canals smell of grilled corn and mariscos instead of spilled beer. Morning rides between 10am-2pm usually avoid storms, and mariachis charge half their weekend rates on weekdays.
Booking Tip: Go Tuesday-Thursday when boats cost less and you'll share the water with locals buying produce at the floating market. Pack a rain jacket - storms appear suddenly.
Museum-Hopping During Rainy Afternoons
September's 3pm thunderstorms create the perfect excuse to explore Mexico City's 150+ museums. The Anthropology Museum's central courtyard echoes with rain on the concrete canopy, while the Modern Art Museum stays blissfully quiet as tourists flee to covered markets.
Booking Tip: Buy the 5-museum pass - it's cheaper than individual tickets and gives you indoor options when storms hit. Tuesdays are free for locals, so expect bigger crowds.
Roma Norte Coffee Shop Crawls
September's humidity makes the neighborhood's third-wave coffee shops feel like sanctuaries - the smell of single-origin beans mingles with rain on hot pavement. Baristas have time to explain Mexican coffee regions when lines disappear, and you might find seats at Café Avellaneda or Cardinal.
Booking Tip: Start at 11am after morning commuter rush - most shops roast beans on-site and offer tastings. Bring a book. Afternoon storms mean 1-2 hour downpours.
Where to Stay in Mexico City in September
Hand-picked hotels across price tiers for September travellers.
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Luxury
Las Alcobas, a Luxury Collection Hotel, Mexico City
From $609 / night
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September Events & Festivals
What's happening during your visit
September 15th
Grito de Dolores Independence Day
September 15th transforms the Zócalo into a sea of green, white and red. The president shouts '¡Viva México!' from the National Palace balcony at 11pm sharp, followed by fireworks and mariachis playing until 4am. Local families set up tables for pozole and chiles en nogada - if you're invited to join, say yes.
Early September
Feria de las Culturas Amigas
Early September brings 90+ countries to Reforma Avenue with food stalls, dance performances and handicrafts. The smell of Ethiopian coffee mingles with Korean BBQ while mariachis somehow make everything sound Mexican. Weekends get packed but weekdays feel like a global block party.
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View Mexico City Packing List →Essential Tips
Insider knowledge and common pitfalls to avoid
Insider Knowledge
Download the 'Metro CDMX' app - it shows real-time delays when rain floods underground stations, saving you from platforms packed shoulder-to-shoulder
The real chiles en nogada season peaks September 15-30 - restaurants like San Ángel Inn serve the patriotic dish (poblano chiles stuffed with fruit and topped with walnut cream) only during these weeks
Taxi apps increase-price during storms - walk one block from main avenues and rates drop 40% as drivers escape flooded streets
Tuesday afternoons at Museo Soumaya are free and empty during September rains - the silver building's six floors of art stay dry while tourists crowd nearby malls
Street vendors sell 'aguas frescas' made with September's peak fruits - try horchata with cantaloupe or agua de jamaica with guava when you see plastic jugs covered with aluminum foil
Avoid These Mistakes
Booking outdoor activities after 2pm - September storms hit 3pm like clockwork, and operators rarely refund when lightning cancels tours
Wearing white sneakers - September's combination of rain, street food grease, and metro grime destroys shoes permanently by day three
Assuming Independence Day is just September 16th - celebrations start the night of the 15th and many restaurants close early for family dinners
Skipping breakfast spots - locals know the best tamales and atole disappear by 10am, and September's cooler mornings make 7am street food walks pleasant
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