Our weather and climate analysis offers a detailed understanding of average weather patterns for locations across the globe. Derived from 26 years of historical simulated weather data from ECMWF, it provides valuable insights into typical weather conditions, including air temperature, humidity, precipitation, cloud cover and wind. It is important to note the data is not observational, but rather derived from climate reanalysis.
Our database was last updated in January 2026, and current weather and climate guides are derived from an hourly dataset spanning 26 years (2000 to 2025). Our database contain modified Copernicus Climate Change Service information for these years. Refer to our Terms for full acknowledgements and disclaimers.
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Discover if upcoming months are expected to be warmer, colder, wetter, or drier than average
What is the best time to visit Monterrey to enjoy the optimal weather conditions?
This quick reference weather table contains a summary of the annual climate trends in Monterrey. It contains key metrics, including average monthly high & low temperatures, rainfall, humidity and UV index. The data is presented on a monthly basis, allowing you to see how each these weather components change throughout the year.
Explore the most extreme weather events in Monterrey over the past 26 years, including record highs and lows for temperatures, rainfall, and wind speeds. This data is sourced from the latest ERA5 reanalysis model spanning 2000 to 2025.
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Weather guides, climate insights, and travel planning stories that talk about Monterrey.
The year-round weather in Monterrey features intense summer heat and mild winters, creating a distinct seasonal divide. WeatherBox data shows that average daily highs peak at 34.3°C (93.7°F) during the warmest month, with temperatures rarely exceeding 37.2°C (99.0°F). Summer averages sit around 27.3°C (81.1°F), maintaining a heavily warm thermal profile. The colder months offer temperate conditions, dropping to an average low of 9.2°C (48.6°F) and rarely falling below 3.9°C (39.0°F). This seasonal shift produces a typical annual range of 14.4°C (25.9°F) between the lowest and highest daily means.
Precipitation patterns in the region reflect a notable late-summer shift, with average annual rainfall totaling 606 mm (24 in). The wettest period arrives abruptly, bringing an average precipitation of 123 mm (5 in) in its peak month, sharply contrasting with the driest month's low of 27 mm (1 in). Alongside this moisture, the city experiences moderate humidity, peaking at an average of 71.3 and dipping to a lower average of 60.5. Cloud coverage tracks closely with these moisture trends, reaching frequent overcast conditions 63.0 of the time during the wettest season, while dropping to 38.2 during clearer, drier periods.
Sunlight remains abundant throughout the year, peaking at an average of 324.9 sunshine hours in the clearest month and maintaining 215.7 hours even during the lowest sunlight periods. During periods of maximum sun exposure, the average peak UV Index is 10.2, indicating intense solar radiation. The local atmosphere generally maintains calm winds, averaging 8.7 km/h (5.4 mph) during the windiest month and rarely exceeding 19.8 km/h (12.3 mph). Users seeking comprehensive climate insights are invited to explore advanced weather charts on the WeatherBox website.