July weather forecast
Green Island, Jamaica

July, like June, in Green Island, Jamaica, is a moderately hot summer month, with temperature in the range of an average low of 27.3°C (81.1°F) and an average high of 29.6°C (85.3°F).

Temperature

The arrival of July is marked by an average high-temperature of a still warm 29.6°C (85.3°F), bearing a close resemblance to June. Green Island's nocturnal average in July closely mirrors its daytime temperatures, settling at a still moderately hot 27.3°C (81.1°F).

Heat index

July's mean heat index is estimated at a sweltering 35°C (95°F). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.
Be aware that heat index ratings are designed for shaded locations and minor breezes. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', determines the feeling of heat when you account for the relative humidity. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
Perspiring is a crucial mechanism for the human body, allowing it to release excessive warmth through evaporating sweat. Increased relative humidity interferes with body cooling by slowing the rate of evaporation, resulting in a slower body cooling rate and a heightened feeling of heat. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.

Humidity

The average relative humidity in July is 76%.

Rainfall

In July, in Green Island, the rain falls for 23.3 days. Throughout July, 80mm (3.15") of precipitation is accumulated. Throughout the year, in Green Island, there are 236.8 rainfall days, and 822mm (32.36") of precipitation is accumulated.

Daylight

The average length of the day in July is 13h and 7min.
On the first day of July in Green Island, sunrise is at 05:40 and sunset at 18:53. On the last day of the month, sunrise is at 05:50 and sunset at 18:48 EST.

Sunshine

In July, the average sunshine in Green Island is 11.4h.

UV index

The months with the highest UV index in Green Island are January through December, with an average maximum UV index of 7. The months with the lowest UV index in Green Island are January through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum UV index, 7 during July, leads to the following recommendations:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.