May weather forecast
Las Tunas, Cuba

The last month of the spring, May, is also a hot month in Las Tunas, Cuba, with an average temperature fluctuating between 31.6°C (88.9°F) and 22.3°C (72.1°F).

Temperature

In Las Tunas, the average high-temperature in May is relatively the same as in April - a still hot 31.6°C (88.9°F). The average low-temperature, in May, is 22.3°C (72.1°F).

Heat index

In May, the average heat index is evaluated at a scorching 42°C (107.6°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'real feel', 'apparent temperature', or 'feels like', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. This effect is individual, with diverse people perceiving weather differently for numerous reasons (differences in body mass, height, and shape, clothing, pregnancy), and activity. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In May, the average relative humidity in Las Tunas, Cuba, is 78%.

Rainfall

In Las Tunas, it is raining for 22.7 days, with typically 124mm (4.88") of accumulated precipitation. In Las Tunas, during the entire year, the rain falls for 202.5 days and collects up to 785mm (30.91") of precipitation.

Daylight

In Las Tunas, the average length of the day in May is 13h and 9min.
On the first day of the month, sunrise is at 06:37 and sunset at 19:32. On the last day of May, sunrise is at 06:25 and sunset at 19:45 CDT.

Sunshine

In May, the average sunshine is 10h.

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 risk from unsafe exposure to UV radiation for the ordinary person.
Note: The average daily UV index of 7 in May transform into the following instructions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.