Monterrey Weather in May
May in Monterrey brings very high temperatures around 31°C (88°F) during the day, dropping to 19°C (66°F) at night, with quite a bit of rainfall expected, averaging around 86 mm (3.4 in) for the month.
Rainfall in Monterrey in May
Historically, May sees about 4 days of rain, with a monthly average of 86 mm (3.4 in). The rain this month typically falls in concentrated bursts rather than all-day showers. Expect a few heavier spells rather than constant grey skies.
Temperature in Monterrey in May
If you're visiting Monterrey in May, expect highs of 31°C (88°F) and overnight lows around 19°C (66°F). If you're spending a lot of time outdoors, it helps to plan around the warmer part of the day. Nights cool down to 19°C (66°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.
Sunshine in Monterrey in May
Expect a lot of sunshine this month, with about 192 hours of sun. These sunny conditions add to the overall experience.If you prefer dry days with pleasant temperatures, January, February, March, April, October, November and December typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Mexico, check out our Monterrey's climate page.
Monterrey Temperature in May
Min Temperature
19°C (66°F)
Max Temperature
31°C (88°F)
Chance of Rain
14%
Precipitation
86 mm (3.4 in)
Rainy days
4 days
Humidity
67%
Sunshine
192 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Monterrey typically stay consistent throughout May, with daily highs averaging around 31°C (88°F). Nights are pleasant, with lows typically ranging from 19°C (66°F) to 21°C (70°F).
Average temperatures in May
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in May
Historical weather for Monterrey in May
Browse day-by-day weather records for Monterrey spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Monterrey historical weather extremes in May
According to our 40 years of weather records for Monterrey, the following extremes were recorded between 1986 and 2026.
- On May 7, 1998, temperatures climbed to 45°C (113°F), marking the warmest May day on record.
- The coldest May day was on May 1, 1994, with a maximum of 18°C (64°F).
- Nighttime temperatures dropped to 9°C (48°F) on May 4, 2013, marking the coldest May night on record.
Best Places in Mexico in May
Find out more about the weather in Mexico and which places have the best travel conditions in this month. See all of Mexico in May →
perfect weather
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unpleasant
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What to Wear in Monterrey in May
Warm temperatures in May make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Prepare for significant rainfall with proper waterproof clothing and shoes. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Monterrey in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Mexico, check out our Monterrey's climate page.
Temperature Rainfall Sunshine Humidity
See the full Monterrey climate overview or explore weather in Mexico.
