May weather forecast
Clewiston, FL

The last month of the spring, May, is a hot month in Clewiston, Florida, with temperature in the range of an average low of 70.7°F (21.5°C) and an average high of 86.4°F (30.2°C).

Temperature

April's transformation into May witnesses an average high-temperature of a tropical 86.4°F (30.2°C), noting a minor change from the preceding month. Clewiston experiences a nighttime temperature average of 70.7°F (21.5°C) during May.

Heat index

The heat index value during May is estimated at a torrid 98.6°F (37°C). Undertake extra safety actions, heat cramps and heat exhaustion are expected. Heatstroke may result from lengthy activity.
Heat index readings emphasize conditions of light breezes and shaded spots. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', blends air temperature and moisture content to represent the felt temperature to humans. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
One of the main methods the human body employs to cool down is by perspiring, as this process allows sweat to evaporate and remove excess heat. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.

Humidity

In Clewiston, Florida, the average relative humidity in May is 74%.

Rainfall

In Clewiston, during May, the rain falls for 15.1 days and regularly aggregates up to 1.97" (50mm) of precipitation. Throughout the year, in Clewiston, Florida, there are 166.9 rainfall days, and 16.06" (408mm) of precipitation is accumulated.

Daylight

In Clewiston, the average length of the day in May is 13h and 28min.
On the first day of May, sunrise is at 6:44 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 6:30 am and sunset at 8:12 pm EDT.

Sunshine

In Clewiston, the average sunshine in May is 10.6h.

UV index

The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for average individuals.
Note: The maximum UV index of 7 during May leads to these instructions:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.