Mexico City has a mild, high-altitude climate with a clear dry season and a wet one, and there is no single bad time to visit. The best time for you depends on whether you prioritize sunshine, festivals, lower prices or quiet museums. At 2,240 meters, days are warm and nights are cool all year, so a light jacket is useful in every season. This guide explains the rhythm of the year.
The dry season, November to April
Skies are mostly clear, days are sunny and comfortable, and rain is rare. Nights can be chilly, especially in December and January, when temperatures at dawn may drop close to freezing in some neighborhoods. This is the most popular period for visitors and the best for sightseeing at Teotihuacan, Xochimilco and Templo Mayor. Late winter offers some of the sharpest views from the Torre Latinoamericana, since winter air is often cleaner. Book hotels and top restaurants early for the busiest weeks.
March to May: warm, dry and bloom season
Spring brings the hottest weather, with afternoon temperatures climbing into the high twenties Celsius and occasionally higher. Jacaranda trees flower in March and April and cover streets in Roma, Condesa, Coyoacan and the university campus in purple. The trade-off is air quality, because dry weather and sunshine can raise ozone levels. Sensitive travelers should check the day's air quality, drink water and plan indoor museum time for the haziest afternoons.
The rainy season, June to October
Rain usually arrives in the afternoon and evening, often as a heavy but short downpour, with mornings still sunny. Landscapes turn green and the air is clearer after storms, crowds are thinner and hotel prices can be lower. Plan outdoor sights for the morning, keep museums and long lunches for the afternoon, and carry a compact umbrella. Teotihuacan and Xochimilco remain pleasant if you start early. September has Independence Day celebrations on the night of 15 September, with a big gathering in the Zocalo.
Day of the Dead, around 1 and 2 November
This is the city's most famous festival, with altars, marigolds, face painting and parades. Streets and plazas fill with offerings, cemeteries host vigils and museums stage themed exhibitions. It is a wonderful time to visit, but hotels book well ahead and some neighborhoods are crowded, so reserve early and consider staying in or near the Historic Center or Coyoacan. Respect the solemn side of the celebration, especially in cemeteries.
Holiday periods and events
Holy Week, in March or April, empties parts of the city as locals travel, while archaeological sites and museums get busier with domestic visitors. The Christmas season brings posadas, lights and markets, and the capital is festive from mid-December. The Formula 1 Mexico City Grand Prix weekend in autumn fills hotels and raises prices. Many museums close on Mondays year-round, so build your plans around that.
Air, altitude and health
Because of the altitude, the sun is strong even on cool days, so sunscreen matters, and the air is thin enough that some visitors feel breathless or tired for a day or two. Drink plenty of water, eat lightly on arrival and limit alcohol at first. In the dry season, the best air quality tends to follow rain or a windy day, and local apps and news show daily readings. If you have asthma or other respiratory issues, plan indoor activities for hazy afternoons.
Month-by-month summary
January and February are cool, dry and clear. March and April are warm with jacarandas. May is hot before the rains begin. June to September are green, with afternoon storms. October is transition and autumn light. November brings Day of the Dead and cooler air, and December is festive and chilly in the mornings.
What to pack and how to adapt
Layers are the rule: a light jacket for mornings and evenings, comfortable walking shoes, sunscreen and a hat at altitude, and a compact rain layer for summer. Take it slowly on your first day, drink water and avoid heavy alcohol until you adjust. If you can choose freely, many travelers pick late October through early December for a mix of clear skies, festivals and moderate crowds, or March for jacarandas if you can handle warm afternoons. Whenever you come, book key tickets and tables ahead, and leave room to wander.