May weather forecast
San Rafael, Cuba

The last month of the spring, May, is another hot month in San Rafael, Cuba, with temperature in the range of an average high of 31.3°C (88.3°F) and an average low of 22.2°C (72°F).

Temperature

San Rafael steps into May with an average high-temperature of a still hot 31.3°C (88.3°F), matching the previous month. An average temperature of 22.2°C (72°F) is recorded in San Rafael during the nights in May.

Heat index

In May, the heat index is calculated to be a blisteringly hot 41°C (105.8°F). Incorporate special precautions, risk of heat exhaustion and heat cramps is substantial. Sustained activity could cause heatstroke.
Remember that heat index calculations are made for conditions in the shade with light wind. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is found by incorporating humidity levels into the air temperature measurement. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
Perspiration, which is the evaporation of sweat, is a primary way the human body manages and dispels excessive warmth. 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 heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

The average relative humidity in May in San Rafael is 77%.

Rainfall

In May, the rain falls for 16.3 days. Throughout May, 36mm (1.42") of precipitation is accumulated. Throughout the year, in San Rafael, there are 150.7 rainfall days, and 261mm (10.28") of precipitation is accumulated.

Daylight

In San Rafael, the average length of the day in May is 13h and 8min.
On the first day of the month, sunrise is at 06:33 and sunset at 19:29. On the last day of May, in San Rafael, Cuba, sunrise is at 06:23 and sunset at 19:42 CDT.

Sunshine

The average sunshine in May in San Rafael is 10.6h.

UV index

April through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the average person.
Note: A maximum daily UV index of 7 during May morphs into the following directions:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.