May weather forecast
Rock River, Jamaica

The last month of the spring, May, is also a moderately hot month in Rock River, Jamaica, with an average temperature fluctuating between 22°C (71.6°F) and 29.6°C (85.3°F).

Temperature

Rock River's May showcases an average high-temperature of a still moderately hot 29.6°C (85.3°F), hardly distinct from April's 29.3°C (84.7°F). The nights of May anticipate an average low-temperature of 22°C (71.6°F).

Heat index

For most parts of May, the heat index is calculated to be a torrid 37°C (98.6°F). Incorporate extra safety measures to avoid heat exhaustion and heat cramps. Continuous activity could provoke heatstroke.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is the result of factoring in humidity to the air temperature, indicating perceived warmth. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. 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.
The body's innate mechanism to counteract overheating is through perspiration, as it leverages the cooling effects of sweat evaporation. In the presence of elevated relative humidity, the evaporation rate decreases. This reduction leads to increased body heat retention compared to conditions of dry air. Rising body temperatures due to excess heat retention could signify impending heat disorders.

Humidity

The average relative humidity in May is 81%.

Rainfall

In Rock River, during May, the rain falls for 26.2 days and regularly aggregates up to 111mm (4.37") of precipitation. Throughout the year, in Rock River, there are 279.6 rainfall days, and 947mm (37.28") of precipitation is accumulated.

Daylight

In Rock River, the average length of the day in May is 12h and 59min.
On the first day of the month, sunrise is at 05:41 and sunset at 18:30. On the last day of May, in Rock River, Jamaica, sunrise is at 05:32 and sunset at 18:40 EST.

Sunshine

In Rock River, the average sunshine in May is 10.6h.

UV index

May through August, with an average maximum UV index of 7, are months with the highest UV index in Rock River. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: In May, the maximum UV index of 7 transforms into these recommendations:
Resist overexposure. Safeguarding from solar damage is indispensable. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.