Weather and climate in Mexico City, Mexico
What the weather is like in Mexico City
The warmest month in Mexico City is April, with average highs of 25°C. The coolest is January, when nights average 3°C. About 793 mm of rain and snow falls in a typical year, most in July and least in December.
Skies are clearest in February (32% average cloud cover) and cloudiest in September (77%). Combining cloud with the length of truly dark nights, December, February, January offer the most clear, dark hours for stargazing.
Clear, dark hours per night
Hours of full astronomical darkness in mid-month, multiplied by the average share of clear sky. A rough guide to how much good observing time a typical night offers.
Monthly averages
| Month | High | Low | Precipitation | Cloud cover | Humidity | Wind | Dark hours |
|---|---|---|---|---|---|---|---|
| January | 18°C | 3°C | 9 mm | 36% | 61% | 4 km/h | 10.3 h |
| February | 20°C | 4°C | 12 mm | 32% | 55% | 4 km/h | 10.0 h |
| March | 23°C | 5°C | 15 mm | 33% | 50% | 5 km/h | 9.5 h |
| April | 25°C | 8°C | 22 mm | 40% | 48% | 4 km/h | 8.9 h |
| May | 25°C | 9°C | 55 mm | 52% | 55% | 4 km/h | 8.3 h |
| June | 23°C | 10°C | 135 mm | 70% | 69% | 4 km/h | 7.9 h |
| July | 21°C | 9°C | 154 mm | 76% | 77% | 3 km/h | 8.1 h |
| August | 20°C | 9°C | 154 mm | 74% | 79% | 4 km/h | 8.7 h |
| September | 19°C | 9°C | 148 mm | 77% | 82% | 4 km/h | 9.3 h |
| October | 19°C | 7°C | 64 mm | 57% | 78% | 4 km/h | 9.9 h |
| November | 18°C | 5°C | 19 mm | 39% | 71% | 4 km/h | 10.3 h |
| December | 18°C | 4°C | 6 mm | 33% | 64% | 3 km/h | 10.4 h |
Climate averages: NASA POWER, 2001–2025, for the grid area around 19.50, -99.38 (about 50 km across). High and low temperatures are estimated from the monthly mean and the average daily range. Hills, coasts and cities can differ from the area average. Sources and methods.