Ecatepec de Morelos is warmest in April, averaging 27° by day and 9° at night. The wettest month is August with 155 mm, and the year brings about 791 mm in total.
Month by month
| Month | High | Low | Rain | Daylight | Good for |
|---|---|---|---|---|---|
| January | 20° | 4° | 12 mm | 10.9 h | Sightseeing |
| February | 23° | 5° | 8 mm | 11.3 h | Sightseeing |
| March | 26° | 6° | 16 mm | 11.9 h | Beach weather |
| April | 27° | 9° | 33 mm | 12.5 h | Beach weather |
| May | 27° | 10° | 53 mm | 12.9 h | Beach weather |
| June | 25° | 10° | 114 mm | 13.2 h | Mild |
| July | 23° | 10° | 140 mm | 13.1 h | Mild |
| August | 22° | 10° | 155 mm | 12.7 h | Mild |
| September | 21° | 9° | 150 mm | 12.1 h | Mild |
| October | 21° | 8° | 71 mm | 11.5 h | Sightseeing |
| November | 21° | 6° | 27 mm | 11.1 h | Sightseeing |
| December | 20° | 5° | 12 mm | 10.8 h | Sightseeing |
High and low are average daily maximum and minimum, rain is typical monthly total, daylight is the hours between sunrise and sunset mid-month. Climate normals from NASA POWER — averages, not promises.
When to go
Beach weather: March, April and May — highs around 27°, nights no colder than 6°, and at most 53 mm of rain in a month.
Walking the city: January, February, October, November and December — highs of 20–23° and no more than 71 mm of rain a month.