Monterrey weather in May 2026

Expect daytime maximum temperatures of 90°F in Monterrey, Mexico in May and high heat and humidity based on long-term weather averages. There are 5 hours of sunshine per day on average with typically 1.9 inches of rainfall in the month.

  • 90°F maximum daytime temperature in May in Monterrey90
    90°F max day temperature
  • 5 hours of sunshine per day
  • 5 days with some rainfall in May in Monterrey5
    5 days with some rainfall
  • 68°F minimum night-time temperature in May in Monterrey68
    68°F min night temperature
  • 13 hours of daylight per day in May in Monterrey13
    13 hours of daylight per day
  • High heat & humidity in May in MonterreyH
    High heat & humidity
  • 1.9 inches monthly rainfall in May in Monterrey1.9
    1.9 inches of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in May in Monterrey11
    11+ (Extreme) UV index

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The May weather guide for Mexico (Monterrey) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C)  |  Imperial (°F)

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How hot is it in Monterrey in May?

Daytime temperatures usually reach 90°F in Monterrey in May with high heat and humidity, falling to 68°F at night.

How sunny is it in Monterrey in May?

There are normally 5 hours of bright sunshine each day in Monterrey in May - that's 40% of daylight hours.

Does it rain in Monterrey in May?

There are usually 5 days with some rain in Monterrey in May and the average monthly rainfall is 1.9 inches.

Monterrey May sunrise & sunset times

Browse the sunrise and sunset times for Monterrey in May 2026. Select a month to view Monterrey sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st May 2026 06:05 19:12
Saturday, 16th May 2026 05:55 19:20
Sunday, 31st May 2026 05:50 19:28

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