May weather forecast and climate
Monterrey, Mexico

The sun setting over Monterrey, Mexico, with a far view of the Sierra Madre mountain ranges
The sun setting over Monterrey, Mexico, with a far view of the Sierra Madre mountain ranges
May, the last month of the spring, in Monterrey, is another hot month, with average temperature varying between 20.2°C (68.4°F) and 32.2°C (90°F).

Temperature

In Monterrey, the average high-temperature is 32.2°C (90°F), and the average low-temperature is 20.2°C (68.4°F).

Humidity

In May, the average relative humidity is 66%.

Rainfall

In Monterrey, during 5.7 rainfall days, 52.3mm (2.1") of precipitation is typically accumulated. In Monterrey, during the entire year, the rain falls for 59.7 days and collects up to 590.8mm (23.3") of precipitation.

Daylight

In Monterrey, the average length of the day in May is 13.4h.

Sunshine

In May, the average sunshine is 6.2h.

UV index

Months with the highest UV index are May through August, with an average UV index of 12.

What is the temperature in May in Monterrey?

In Monterrey, in May, the average high-temperature is 32.2°C (90°F), and the average low-temperature is 20.2°C (68.4°F).

What is the average humidity in May in Monterrey?

In Monterrey, the average relative humidity in May is 66%.

How much does it rain in Monterrey in May?

In Monterrey, in May, it is raining for 5.7 days, with typically 52.3mm (2.1") of accumulated precipitation.

What is the average length of the day in May in Monterrey?

The average length of the day in May in Monterrey is 13.4h.

How many hours of sunshine does Monterrey have in May?

In Monterrey, the average sunshine in May is 6.2h.

When is the highest UV index in Monterrey?

Months with the highest UV index are May through August, with an average UV index of 12.

How high is the UV index in May in Monterrey?

In May, the average UV index in Monterrey is 12.
Average temperature in May - Monterrey, Mexico
  • Average high temperature in May: 32.2°C

The warmest month (with the highest average high temperature) is July (34.8°C).
The month with the lowest average high temperature is January (20.7°C).

  • Average low temperature in May: 20.2°C

The month with the highest average low temperature is August (22.5°C).
The coldest month (with the lowest average low temperature) is January (8.2°C).

Average humidity in May - Monterrey, Mexico
  • Average humidity in May: 66%

The month with the highest relative humidity is October (71%).
The month with the lowest relative humidity is March (58%).

Average rainfall in May - Monterrey, Mexico
  • Average rainfall in May: 52.3mm

The wettest month (with the highest rainfall) is September (150.6mm).
The driest month (with the lowest rainfall) is December (14.1mm).

Average rainfall days in May - Monterrey, Mexico
  • Average rainfall days in May: 5.7 days

The month with the highest number of rainy days is September (8.2 days).
Months with the lowest number of rainy days are March and December (3.4 days).

Average daylight in May / Average sunshine in May - Monterrey, Mexico
  • Average daylight in May: 13.4h

The month with the longest days is June (Average daylight: 13.7h).
The month with shortest days is December (Average daylight: 10.6h).

  • Average sunshine in May: 6.2h

The month with most sunshine is July (Average sunshine: 8h).
The month with least sunshine is December (Average sunshine: 4.3h).

Average UV index in May - Monterrey, Mexico
  • Average UV index in May: 12

Months with the highest UV index are May, June, July and August (UV index 12).
Months with the lowest UV index are January and December (UV index 5).

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