May weather forecastGuatemala, Cuba
May
Weather in May
The last month of the spring, May, is another warm month in Guatemala, Cuba, with an average temperature fluctuating between 29.8°C (85.6°F) and 21.9°C (71.4°F).Temperature
The commencement of May brings an average high-temperature of a still warm 29.8°C (85.6°F), marking an inconsequential divergence from April. May nights are marked by an average temperature drop to a pleasant 21.9°C (71.4°F).Heat index
In May, the heat index is calculated to be a very hot 37°C (98.6°F). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.Remember that heat index calculations are made for conditions in the shade with light wind. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. Rising body temperatures resulting from an imbalance in heat absorption can lead to potential thermal issues.
Humidity
The average relative humidity in May in Guatemala is 81%.Rainfall
The months with the most rainfall are May and September, with an average 114mm (4.49") of precipitation.Daylight
The average length of the day in May in Guatemala is 13h and 8min.On the first day of May in Guatemala, sunrise is at 06:31 and sunset at 19:27. On the last day of the month, sunrise is at 06:21 and sunset at 19:39 CDT.
Sunshine
The average sunshine in May is 10.6h.UV index
May through September, with an average maximum UV index of 7, are months with the highest UV index in Guatemala. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum high UV index of 7 in May translates into the following recommendations:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Guatemala, Cuba
- Average high temperature in May: 29.8°C
The warmest month (with the highest average high temperature) is August (31.5°C).
The month with the lowest average high temperature is January (26.9°C).
- Average low temperature in May: 21.9°C
The months with the highest average low temperature are July and August (23.3°C).
The coldest month (with the lowest average low temperature) is January (19.7°C).
Average pressure in May
Guatemala, Cuba
- Average pressure in May: 1014.6mbar
The month with the highest atmospheric pressure is January (1016.9mbar).
The month with the lowest atmospheric pressure is October (1012.2mbar).
Average wind speed in May
Guatemala, Cuba
- Average wind speed in May: 8.4km/h
The windiest months (with the highest average wind speed) are February and March (10.4km/h).
The calmest month (with the lowest average wind speed) is September (7.7km/h).
Average humidity in May
Guatemala, Cuba
- Average humidity in May: 81%
The month with the highest relative humidity is October (84%).
The month with the lowest relative humidity is March (78%).
Average rainfall in May
Guatemala, Cuba
- Average rainfall in May: 114mm
The wettest months (with the highest rainfall) are May and September (114mm).
The driest month (with the least rainfall) is February (19mm).
Average rainfall days in May
Guatemala, Cuba
- Average rainfall days in May: 23.1 days
The month with the highest number of rainy days is October (25.3 days).
The month with the least rainy days is February (12.3 days).
Average daylight in May /
Average sunshine in May
Guatemala, Cuba
- Average daylight in May: 13h and 6min
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: 10h and 36min
The months with the most sunshine are July and August (Average sunshine: 11h and 12min).
The months with the least sunshine are January and November (Average sunshine: 6h and 18min).
Average sunshine days in May
Guatemala, Cuba
- Average sunshine days in May: 5.6 days
The month with the most sunshine days is March (13.7 days).
The month with the least sunshine days is October (3.5 days).
Average UV index in May
Guatemala, Cuba
- Average UV index in May: 7
The months with the highest UV index are May, June, July, August and September (UV index 7).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 6).
Average cloud cover in May
Guatemala, Cuba
- Average cloud cover in May: 32
The months with the most cloud cover are January and November (Cloud cover 36).
The month with the least cloud cover is August (Cloud cover 24).
Average visibility in May
Guatemala, Cuba
- Average visibility in May: 9km
The month with the highest visibility is March (10km).
The month with the lowest visibility is October (8km).





