Monterrey, Nuevo León, Mexico climate
Average temperatures, precipitation and all-time records for Monterrey, Nuevo León, Mexico, with every day graded against ~46 years of local climate history (1980–2026). Its warmest month is August, averaging a high of 34°C, and its coldest is January, with an average low of 9°C.
Monterrey is the capital and largest city of the northeastern Mexican state of Nuevo León. The city anchors the Monterrey metropolitan area, Mexico's second largest metropolitan area with a population of 5,347,000 as of 2026, and is often considered the richest city in Latin America. via Wikipedia
How today compares
Latest recorded day: 2026-07-24. Each reading placed on Monterrey, Nuevo León, Mexico's own ±7-day seasonal distribution.
Monterrey average temperatures by month
Typical daily high and low, and average precipitation, for each month in Monterrey, Nuevo León, Mexico, based on 1980–2026 records. The wettest month is September (5 mm on an average day).
| Month | Avg high | Avg low | Avg precip |
|---|---|---|---|
| January | 20°C | 9°C | 3 mm |
| February | 23°C | 11°C | 0 mm |
| March | 26°C | 14°C | 3 mm |
| April | 29°C | 17°C | 3 mm |
| May | 31°C | 20°C | 3 mm |
| June | 33°C | 22°C | 3 mm |
| July | 34°C | 22°C | 0 mm |
| August | 34°C | 23°C | 0 mm |
| September | 31°C | 21°C | 5 mm |
| October | 28°C | 18°C | 3 mm |
| November | 24°C | 14°C | 3 mm |
| December | 21°C | 10°C | 0 mm |
Each bar spans the 10th-percentile daily low to the 90th-percentile daily high (the range most days fall within), coloured cold → hot on a shared -23°C to 46°C scale, so the whole year's rhythm reads at a glance.
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Record extremes
- Hottest day on record: 42°C on 2024-05-24
- Coldest day on record: -7°C on 1983-12-25
Percentiles compare each day to Monterrey, Nuevo León, Mexico's own history, so grades are relative to this location: a “Near Record” day here isn't the same temperature as elsewhere. How the grades work →