Climate Overview
The climate in Mexico City is temperate. The average annual temperature is 15°C and approximately 1028mm of precipitation falls per year. August is the wettest month, receiving around 198mm of rainfall. Mexico City is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: May, April, March. The coldest months are January, December, February, when temperatures can drop to 5°C.
Temperature
Temperatures in Mexico City vary considerably across the year, with a 21°C difference between the coldest and warmest months. The warmest month is May, when average highs reach 26°C and the mean temperature sits around 18°C. January is the coolest month, with minimum temperatures around 5°C and an average of 12°C. On average, daily temperatures fluctuate by about 13°C between overnight lows and afternoon highs. The sharpest temperature change occurs between January and February, with a 2°C shift in average temperatures.
Precipitation
Mexico City is a moderately rainy area, receiving approximately 1028mm of precipitation annually, which averages out to around 86mm per month. The wettest month is August, averaging 198mm of rainfall. September and July also tend to see above-average precipitation. The driest month is December, with just 9mm. That's 189mm less than August, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.
Wind
Mexico City is relatively calm, with an average annual wind speed of 2km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is March, averaging 2km/h, though still comfortable for most outdoor activities. The calmest conditions occur in July, with average winds dropping to 2km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 0km/h between the calmest and windiest months.
Seasons
4 days until Summer
It is currently spring in Mexico City, which began on March 20, 2026. Mexico City is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in May at around 26°C, while the coldest stretch bottoms out in January near 5°C. Summer is next, beginning on June 21, 2026 — 4 days from now.
Spring
Temperatures range from 8 to 26°C. Rainfall is relatively light, with around 131mm over the season and a monthly average of 44mm. Winds are generally light, averaging 2km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.
Summer
Temperatures range from 11 to 24°C. Rainfall is heavy, totalling around 541mm across the season with a monthly average of 180mm. Winds are generally light, averaging 2km/h. Comfortable clothing with a light layer for cooler evenings is all you need.
Autumn
Temperatures range from 7 to 21°C. Rainfall is heavy, totalling around 316mm across the season with a monthly average of 105mm. Winds are generally light, averaging 2km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 5 to 23°C. Precipitation is minimal, with only around 41mm for the entire season. Winds are generally light, averaging 2km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Best Time to Visit
The best time to visit Mexico City is during March, April and May, when the weather is most comfortable for travellers. During these months, average temperatures hover around 17°C with modest rainfall averaging 44mm per month. By contrast, January can be quite cold with temperatures dropping to 5°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.
Monthly Climate Data
The table below shows monthly climate averages for Mexico City based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.
