Mexico City Climate — Average Highs, Lows & Rainfall by Month
Mexico City has a temperate climate with four distinct seasons. Daytime temperatures average 28°C / 83°F in May, the warmest month, and drop to 22°C / 72°F in December, the coldest. Overnight lows in December average 8°C / 46°F. Mexico City receives about 1164 mm of rain a year across roughly 139 wet days, with August the wettest month.
Averages for 2021–2025 · Open-Meteo Historical Weather API (ERA5 reanalysis) · Updated 2026-10-05
Monthly averages in Mexico City
Average daytime high, overnight low and rainfall for each month of the year.
| Month | Avg high | Avg low | Rainfall | Wet days |
|---|---|---|---|---|
| January | 23°C / 73°F | 8°C / 46°F | 6 mm | 2 |
| February | 25°C / 77°F | 8°C / 47°F | 8 mm | 2 |
| March | 28°C / 82°F | 11°C / 51°F | 9 mm | 2 |
| April | 28°C / 83°F | 12°C / 54°F | 19 mm | 5 |
| May | 28°C / 83°F | 14°C / 56°F | 78 mm | 12 |
| June | 25°C / 78°F | 14°C / 56°F | 196 mm | 19 |
| July | 23°C / 73°F | 13°C / 55°F | 234 mm | 26 |
| August | 23°C / 73°F | 13°C / 55°F | 252 mm | 28 |
| September | 23°C / 73°F | 13°C / 55°F | 250 mm | 25 |
| October | 23°C / 73°F | 11°C / 52°F | 92 mm | 12 |
| November | 24°C / 75°F | 10°C / 49°F | 10 mm | 3 |
| December | 22°C / 72°F | 8°C / 47°F | 11 mm | 3 |
Best time to visit Mexico City
January, February, March offer the most comfortable weather in Mexico City: mild daytime temperatures with the year's lowest rainfall — January averages 23°C (73°F); February averages 25°C (77°F); March averages 28°C (82°F).
Mexico City climate FAQ
- What is the hottest month in Mexico City?
- May is the hottest month in Mexico City, with average daytime highs of 28°C / 83°F and overnight lows of 14°C / 56°F (averages for 2021–2025).
- What is the coldest month in Mexico City?
- December is the coldest month in Mexico City, with average highs of 22°C / 72°F and lows of 8°C / 47°F.
- How much rain does Mexico City get a year?
- Mexico City receives about 1164 mm of rainfall a year, spread over roughly 139 wet days. August is the wettest month (252 mm on average) and January the driest (6 mm).
- When is the best time to visit Mexico City?
- January, February, March are the most comfortable months in Mexico City: mild daytime temperatures with the least rainfall of the year.
Want today's conditions instead of averages?
See live weather in Mexico City →Source: Open-Meteo Historical Weather API (ERA5 reanalysis), Open-Meteo. Averages are daily means across 2021–2025 and are rounded for display — for a live forecast see the Mexico City weather page.