May weather forecast
Guatemala City, Guatemala

The iconic buildings of the cathedral in Guatemala City, Guatemala
The iconic buildings of the cathedral in Guatemala City, Guatemala

Weather in May

May, the last month of the spring in Guatemala City, is another warm month, with an average temperature ranging between min 16.8°C (62.2°F) and max 27.1°C (80.8°F).

Temperature

In May, the average high-temperature is relatively the same as in April - a still moderately hot 27.1°C (80.8°F). In May, the average low-temperature is 16.8°C (62.2°F).

Heat index

The average heat index in May is estimated at a hot 30°C (86°F). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'felt air temperature', 'real feel', or 'feels like', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Additional factors like activity, pregnancy, differences in body mass, height, and shape, and clothing affect individual temperature impact. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

In May, the average relative humidity in Guatemala City is 77.3%.

Rainfall

In Guatemala City, in May, during 12.4 rainfall days, 129mm (5.08") of precipitation is typically accumulated. In Guatemala City, Guatemala, during the entire year, the rain falls for 125.2 days and collects up to 1275mm (50.2") of precipitation.

Daylight

The average length of the day in May in Guatemala City, Guatemala, is 12h and 49min.
On the first day of May, sunrise is at 05:39 and sunset at 18:19. On the last day of the month, sunrise is at 05:31 and sunset at 18:27 CST.

Sunshine

In Guatemala City, the average sunshine in May is 5.9h.

UV index

February through October, with an average maximum UV index of 12, are months with the highest UV index. A UV Index value of 11, and more, symbolizes an extreme threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: The average daily UV index of 12 in May transform into the following instructions:
Take all required precautions, as unprotected skin and eyes can burn in minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. 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. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Prolonged stay under the direct sun should be avoided as much as possible, especially if a person burns easily. Sunscreen with a minimum 30 sun protection factor should always be used.
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FAQ

What is the temperature in May in Guatemala City?

In May, the average high-temperature is 27.1°C (80.8°F), and the average low-temperature is 16.8°C (62.2°F). The average heat index (a.k.a. 'real feel', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in May is estimated at 30°C (86°F).

What is the average humidity in May in Guatemala City?

In May, the average relative humidity in Guatemala City is 77.3%.

How much does it rain in Guatemala City in May?

In Guatemala City, Guatemala, during May, the rain falls for 12.4 days and regularly aggregates up to 129mm (5.08") of precipitation.

How many hours of daylight does Guatemala City have in May?

In May, the average day length in Guatemala City, Guatemala, is 12h and 49min.

When are sunrise and sunset in May in Guatemala City?

On the first day of May in Guatemala City, Guatemala, sunrise is at 05:39 and sunset at 18:19. On the last day of the month, sunrise is at 05:31 and sunset at 18:27 CST.

How long on average sun shines in May in Guatemala City?

In Guatemala City, the average sunshine duration in May is 5.9h.

What are the months with the highest UV index in Guatemala City?

The months with the highest UV index are February through October, with an average maximum UV index of 12.

What is the UV index intensity in May in Guatemala City?

In Guatemala City, the average daily maximum UV index in May is 12. A UV Index estimate of 11, and higher, represents an ultimate hazard to health from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average sunshine
Average UV index

Average temperature in May
Guatemala City, Guatemala

Average temperature in May - Guatemala City, Guatemala
  • Average high temperature in May: 27.1°C

The warmest month (with the highest average high temperature) is April (27.8°C).
The month with the lowest average high temperature is December (23.9°C).

  • Average low temperature in May: 16.8°C

The months with the highest average low temperature are May and June (16.8°C).
The coldest month (with the lowest average low temperature) is January (13.2°C).

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Average humidity in May
Guatemala City, Guatemala

Average humidity in May - Guatemala City, Guatemala
  • Average humidity in May: 77.3%

The month with the highest relative humidity is September (84.5%).
The month with the lowest relative humidity is March (73.2%).

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Average rainfall in May
Guatemala City, Guatemala

Average rainfall in May - Guatemala City, Guatemala
  • Average rainfall in May: 128.9mm

The wettest month (with the highest rainfall) is June (271.8mm).
The driest month (with the least rainfall) is January (2.8mm).

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Average rainfall days in May
Guatemala City, Guatemala

Average rainfall days in May - Guatemala City, Guatemala
  • Average rainfall days in May: 12.4 days

The month with the highest number of rainy days is June (21.1 days).
The month with the least rainy days is February (1.5 days).

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Average daylight in May /
Average sunshine in May
Guatemala City, Guatemala

Average daylight in May / Average sunshine in May - Guatemala City, Guatemala
  • Average daylight in May: 12h and 49min

The month with the longest days is June (Average daylight: 12h and 59min).
The month with the shortest days is December (Average daylight: 11h and 17min).

  • Average sunshine in May: 5h and 54min

The month with the most sunshine is February (Average sunshine: 8h and 24min).
The month with the least sunshine is June (Average sunshine: 5h and 12min).

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Average UV index in May
Guatemala City, Guatemala

Average UV index in May - Guatemala City, Guatemala
  • Average UV index in May: 12

The months with the highest UV index are February, March, April, May, June, July, August, September and October (UV index 12).
The month with the lowest UV index is December (UV index 9).

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