The hottest month in Monterrey is typically August, with daytime highs averaging around 34.3°C (94°F), based on 10 years of historical weather data. Overnight lows during this period average near 23.1°C (74°F).

What is the coldest month in Monterrey?

The coldest month in Monterrey is typically January, with overnight lows averaging around 8.9°C (48°F) and daytime highs near 19.4°C (67°F), based on 10 years of historical weather data.

Does Monterrey have a rainy season?

Monterrey doesn't have a sharply defined rainy season rainfall is fairly spread across the year based on 10 years of historical data. September is the wettest month on average (about 121 mm), while February is the driest (about 13 mm).

What's the best time of year to visit Monterrey?

The best time to visit Monterrey is typically February, when daytime highs average a comfortable 23.5°C (74°F). Rainfall during this window averages around 13 mm, one of the lighter, more comfortable stretches of the year. This is based on 10 years of historical weather data.

Is Monterrey's air quality safe right now?

As of the latest reading, Monterrey's air quality index (AQI) is 60, rated "Moderate", based on the nearest monitoring station. Air quality is acceptable, though unusually sensitive individuals may notice minor effects.

Atmospheric Details

Wind

3 km/h

ENE · Light Breeze · Max 23 km/h

Humidity

61 %

Comfortable

UV Index

Very High

Visibility

16 km

Excellent

Pressure

951 hPa

Low · change likely

Dew Point

19°C

Somewhat humid

Today vs Normal

39°C+13° above normal

The long-term average high for today is 26°C.

28 of the last 28 days with published data ran above normal.

It continues that pattern - today's forecast is also running above normal.

Red = above normal, blue = at or below · last 12 days

Air Quality

Moderate

Air quality is acceptable for most people. Unusually sensitive individuals should consider reducing prolonged or heavy outdoor exertion.

Health & Activity Advice

⚠ Limit Outdoor Time

UV index is 8 today — very high. Limit sun exposure around midday, apply SPF 30+ every two hours, and seek shade when possible.

Air quality is acceptable for most people. Unusually sensitive individuals should consider reducing prolonged or heavy outdoor exertion.

Morning before 10 AM or evening after 4 PM is the more comfortable window for outdoor activity today.