- Rain mm/yr
- 1,109
Updated July 2026 · Sources cited: climatestotravel.com, currentresults.com
Good to know
Good to Know
- March and April offer the best balance: sunniest period, warmest daytime temps (~25°C (77°F)/77°F), and minimal rain.
- Year-round temperature swing between day and night is significant (typically 14-20°C (57–68°F)/25-35°F difference), especially in dry season—layer clothing.
- Rainy season (June–September) showers are usually brief afternoon/evening bursts, rarely lasting more than a few hours.
- Altitude (2,200–2,600m) keeps the city cooler than tropical Mexico; nights can approach freezing in winter despite mild days.
- Winter months have the worst air pollution due to inversion conditions, despite clearer skies.
- High UV index year-round; sunscreen essential even on overcast days.
Seasons
Dry Season
- Months
- November to May
- Characteristics
- Little rainfall, comfortable conditions
Rainy Season
- Months
- June to September
- Characteristics
- Heavy afternoon/evening showers, usually brief
Rainfall
- Driest Month
- December
- Wettest Month
- August
- Annual Total Mm
- 1109
- Annual Total Inches
- 44
- Rainy Season Pattern
- Exceeds 100mm monthly June-September
- Driest Month Rainfall Mm
- 14
- Wettest Month Rainfall Mm
- 203
- Driest Month Rainfall Inches
- 0.6
- Wettest Month Rainfall Inches
- 8
Snowfall
Extremely rare; city has only experienced a handful of events in the past century, most notably January 1967
Best Months
Best Months
- March
- April
Worst Months
Worst Months
- July
- August
- September
Peak Temperatures
- Warmest Month
- May
- Warmest Daytime High Celsius
- 26
- Warmest Nighttime Low Celsius
- 12
- Warmest Daytime High Fahrenheit
- 79
- Warmest Nighttime Low Fahrenheit
- 54
Off Peak Temperatures
- Coldest Month
- January
- Coldest Daytime High Celsius
- 21
- Coldest Nighttime Low Celsius
- 5
- Coldest Daytime High Fahrenheit
- 70
- Coldest Nighttime Low Fahrenheit
- 41
AI-generated estimateData refreshed July 2026
Sources cited for this category
These are the sources cited in this climate & weather research for this city. Individual figures may not each trace to one of them.
More About Mexico City
Data last updated July 2026 · Verify anything important.