May weather forecast
Merida, Mexico

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The Santa Ana Church in Merida, Mexico, surrounded by beautiful flowers and palm trees
The Santa Ana Church in Merida, Mexico, surrounded by beautiful flowers and palm trees

Weather in May

May continues the pattern of escalating temperatures in Merida. The highest temperature in May can escalate up to 35.4°C, which is the peak temperature Merida experiences during the year. May is characterized by an increased level of humidity and rainfall, heightening the overall heat in the city. Visitors and locals can expect warmer and humid days throughout May. However, evenings can get fairly pleasant with a refreshing breeze.

Temperature

The warmest period in Merida tends to be May, when average temperatures fluctuate between a high of 35.4°C and a low of 24°C.

Heat index

The average heat index in May is computed to be a blazing hot 48°C. Forewarned: Heat cramps and heat exhaustion are anticipated. Ongoing physical activity increases the likelihood of heatstroke.
When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.

Humidity

The months with the lowest humidity are April and May, with an average relative humidity of 63%.

Rainfall

In Merida, during May, the rain falls for 12.5 days and regularly aggregates up to 43mm of precipitation. In Merida, during the entire year, the rain falls for 167.3 days and collects up to 536mm of precipitation.

Daylight

In Merida, the average length of the day in May is 13h and 8min.
On the first day of May in Merida, sunrise is at 5:27 am and sunset at 6:23 pm. On the last day of the month, sunrise is at 5:16 am and sunset at 6:35 pm CST.

Sunshine

The month with the most sunshine is May, with an average of 11.1h of sunshine.

UV index

The months with the highest UV index are February through October, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: A maximum high UV index of 7 in May translates into the following recommendations:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. Enhance your sun protection with tightly woven, yet airy clothing.
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FAQ

What is the warmest month in Merida?

May registers as the month with the average highest temperatures, reaching 35.4°C at its peak and 24°C at the lowest.

How hot is it in Merida in May?

An average high-temperature, in May, in Merida, is 35.4°C and the average low-temperature is 24°C. In May, the average heat index (a.k.a. 'real feel', 'feels like'), which calculates the temperature value influenced by the moisture in the air, is computed to be 48°C.

What is the least humid month in Merida?

The months with the lowest humidity in Merida are April and May, with an average relative humidity of 63%.

What is the average humidity in May in Merida?

The average relative humidity in May in Merida is 63%.

How much does it rain in Merida in May?

In Merida, during May, the rain falls for 12.5 days and regularly aggregates up to 43mm of precipitation.

How many hours of daylight does Merida have in May?

In May, the average day length in Merida is 13h and 8min.

What time are sunrise and sunset in May in Merida?

On the first day of May in Merida, sunrise is at 5:27 am and sunset at 6:23 pm. On the last day of the month, sunrise is at 5:16 am and sunset at 6:35 pm CST.

What month has the most sunshine in Merida?

With an average of 11.1h of sunshine, May has the most sunshine of the year in Merida, Mexico.

How many hours of sunshine does Merida have in May?

In Merida, the average sunshine duration in May is 11.1h.

What is the month with the highest UV index in Merida?

The months with the highest UV index in Merida, Mexico, are February through October, with an average maximum UV index of 7.

What is the UV index intensity in May in Merida?

In Merida, the average daily maximum UV index in May is 7. A UV Index reading of 6 to 7 represents a high health risk from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Merida, Mexico

Average temperature in May - Merida, Mexico
  • Average high temperature in May: 35.4°C

The warmest month (with the highest average high temperature) is May (35.4°C).
The month with the lowest average high temperature is January (28.1°C).

  • Average low temperature in May: 24°C

The month with the highest average low temperature is June (24.3°C).
The coldest month (with the lowest average low temperature) is January (18.6°C).

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Average pressure in May
Merida, Mexico

Average pressure in May - Merida, Mexico
  • Average pressure in May: 1012.3mbar

The month with the highest atmospheric pressure is January (1017.6mbar).
The month with the lowest atmospheric pressure is September (1011.9mbar).

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Average wind speed in May
Merida, Mexico

Average wind speed in May - Merida, Mexico
  • Average wind speed in May: 15.2km/h

The windiest month (with the highest average wind speed) is March (16.1km/h).
The calmest month (with the lowest average wind speed) is September (10.6km/h).

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Average humidity in May
Merida, Mexico

Average humidity in May - Merida, Mexico
  • Average humidity in May: 63%

The months with the highest relative humidity are September and October (78%).
The months with the lowest relative humidity are April and May (63%).

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Average rainfall in May
Merida, Mexico

Average rainfall in May - Merida, Mexico
  • Average rainfall in May: 43mm

The wettest month (with the highest rainfall) is June (99mm).
The driest months (with the least rainfall) are February and March (12mm).

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Average rainfall days in May
Merida, Mexico

Average rainfall days in May - Merida, Mexico
  • Average rainfall days in May: 12.5 days

The month with the highest number of rainy days is September (20.4 days).
The months with the least rainy days are February and March (7.2 days).

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Average daylight in May /
Average sunshine in May
Merida, Mexico

Average daylight in May / Average sunshine in May - Merida, Mexico
  • Average daylight in May: 13h and 1min

The month with the longest days is June (Average daylight: 13h and 24min).
The month with the shortest days is December (Average daylight: 10h and 54min).

  • Average sunshine in May: 11h and 1min

The month with the most sunshine is May (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 54min).

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Average sunshine days in May
Merida, Mexico

Average sunshine days in May - Merida, Mexico
  • Average sunshine days in May: 15.2 days

The month with the most sunshine days is March (21.8 days).
The month with the least sunshine days is October (8.5 days).

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Average UV index in May
Merida, Mexico

Average UV index in May - Merida, Mexico
  • Average UV index in May: 7

The months with the highest UV index are February, March, April, May, June, July, August, September and October (UV index 7).
The months with the lowest UV index are January, November and December (UV index 6).

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Average cloud cover in May
Merida, Mexico

Average cloud cover in May - Merida, Mexico
  • Average cloud cover in May: 26

The month with the most cloud cover is January (Cloud cover 36).
The months with the least cloud cover are March and April (Cloud cover 25).

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Average visibility in May
Merida, Mexico

Average visibility in May - Merida, Mexico
  • Average visibility in May: 10km

The months with the highest visibility are February, March, April, May and June (10km).
The month with the lowest visibility is September (8km).

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Merida, Mexico

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