May weather forecastMonterrey, Mexico
May
Weather in May
May introduces the city of Monterrey to the early signs of summer. Topping off at 30.5°C (86.9°F), this month unsurprisingly brings the hottest weather thus far, while also hosting the maximum rainfall of 105mm (4.13") for the year. However, despite the rise in temperature and precipitation, the length of daylight and the number of sunshine days also increase. The wind maintains a steady pace, not differing significantly from the previous months. While the weather in May could be considered a prelude to the upcoming heat of the summer season, it still holds an allure for those who enjoy a mix of warm days and rainy spells.Temperature
The arrival of May coincides with an average high-temperature of a tropical 30.5°C (86.9°F), indicating a minimal shift from April's 28.8°C (83.8°F). During May, Monterrey sees a mean low-temperature of 19.2°C (66.6°F).Heat index
May's mean heat index is evaluated at a hot 33°C (91.4°F). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.The metrics for the heat index are tailored for both shady environments and light winds. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
Humidity
In May, the average relative humidity is 58%.Rainfall
May is the month with the most rainfall in Monterrey. Rain falls for 19.3 days and accumulates 105mm (4.13") of precipitation.Snowfall
January through November are months without snowfall in Monterrey.Daylight
In May, the average length of the day is 13h and 25min.On the first day of May in Monterrey, sunrise is at 6:03 am and sunset at 7:12 pm. On the last day of the month, sunrise is at 5:49 am and sunset at 7:28 pm CST.
Sunshine
In Monterrey, the average sunshine in May is 10.7h.UV index
The months with the highest UV index are May and July, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the average person.Note: The maximum UV index of 7 during May leads to these instructions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Monterrey, Mexico
- Average high temperature in May: 30.5°C
The warmest month (with the highest average high temperature) is August (31.7°C).
The month with the lowest average high temperature is January (18.5°C).
- Average low temperature in May: 19.2°C
The month with the highest average low temperature is August (20.8°C).
The coldest month (with the lowest average low temperature) is January (8.3°C).
Average pressure in May
Monterrey, Mexico
- Average pressure in May: 1011.6mbar
The month with the highest atmospheric pressure is January (1019.5mbar).
The month with the lowest atmospheric pressure is May (1011.6mbar).
Average wind speed in May
Monterrey, Mexico
- Average wind speed in May: 11.2km/h
The windiest months (with the highest average wind speed) are June and July (11.9km/h).
The calmest month (with the lowest average wind speed) is December (7.4km/h).
Average humidity in May
Monterrey, Mexico
- Average humidity in May: 58%
The month with the highest relative humidity is September (69%).
The month with the lowest relative humidity is April (50%).
Average rainfall in May
Monterrey, Mexico
- Average rainfall in May: 105mm
The wettest month (with the highest rainfall) is May (105mm).
The driest month (with the least rainfall) is February (12mm).
Average rainfall days in May
Monterrey, Mexico
- Average rainfall days in May: 19.3 days
The month with the highest number of rainy days is September (22.8 days).
The month with the least rainy days is December (6 days).
Average snowfall in May
Monterrey, Mexico
- Average snowfall in May: 0mm
The month with the highest snowfall is December (6mm).
The months with the least snowfall are January, February, March, April, May, June, July, August, September, October and November (0mm).
Average snowfall days in May
Monterrey, Mexico
- Average snowfall days in May: 0 days
The months with the highest number of snowfall days are January and February (0.2 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in May /
Average sunshine in May
Monterrey, Mexico
- Average daylight in May: 13h and 24min
The month with the longest days is June (Average daylight: 13h and 42min).
The month with the shortest days is December (Average daylight: 10h and 36min).
- Average sunshine in May: 10h and 42min
The month with the most sunshine is June (Average sunshine: 11h and 30min).
The month with the least sunshine is November (Average sunshine: 7h and 0min).
Average sunshine days in May
Monterrey, Mexico
- Average sunshine days in May: 7.7 days
The month with the most sunshine days is December (21.5 days).
The month with the least sunshine days is September (5.5 days).
Average UV index in May
Monterrey, Mexico
- Average UV index in May: 7
The months with the highest UV index are May and July (UV index 7).
The months with the lowest UV index are January and December (UV index 4).
Average cloud cover in May
Monterrey, Mexico
- Average cloud cover in May: 22
The month with the most cloud cover is September (Cloud cover 33).
The month with the least cloud cover is August (Cloud cover 15).
Average visibility in May
Monterrey, Mexico
- Average visibility in May: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, October, November and December (10km).
The month with the lowest visibility is September (9km).
