July weather forecast
Kingston, Jamaica

July displays an interesting shift in Kingston's weather pattern. Notwithstanding July's elevated temperatures reaching the year's peak at 32.8°C (91°F), the month showcases a noticeable drop in rainfall to 42mm (1.65") compared to June. The daylight hours remain generous, providing ample sunshine for outdoor activities. As one moves to August, minor changes in weather parameters can be expected.

Temperature

July, with its average high-temperature of 32.8°C (91°F) and an average low-temperature of 24.3°C (75.7°F), holds the record as the warmest month in Kingston.

Heat index

The heat index in July is evaluated at an extremely hot 43°C (109.4°F). Remain alert: Heat exhaustion and heat cramps are predicted. Extended effort can lead to heatstroke.
It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', unifies temperature and humidity readings to offer a comprehensive feel of warmth. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
In response to overheating, the human body perspires to cool down, mainly through the evaporation of sweat. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

July is the least humid month, with an average relative humidity of 70%.

Rainfall

In Kingston, Jamaica, during July, the rain falls for 6 days and regularly aggregates up to 42mm (1.65") of precipitation. Throughout the year, in Kingston, there are 93 rainfall days, and 813mm (32.01") of precipitation is accumulated.

Sea temperature

In Kingston, in July, the average water temperature is 28.8°C (83.8°F).
Note: Swimming, diving, and similar water activities in temperatures ranging from 25°C (77°F) to 29°C (84.2°F) are seen as very agreeable and pleasurable for lengthy periods without discomfort.

Daylight

In July, the average length of the day in Kingston, Jamaica, is 13h and 5min.
On the first day of the month, sunrise is at 05:35 and sunset at 18:46. On the last day of July, in Kingston, sunrise is at 05:45 and sunset at 18:41 EST.

Sunshine

In Kingston, the average sunshine in July is 8.4h.

UV index

March through September, with an average maximum UV index of 12, are months with the highest UV index in Kingston. A UV Index reading of 11, and higher, represents an extreme health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The UV index of 12 during July leads to these advisories:
Take every essential safety procedure. Individuals with fair skin could sustain burns in less than 5 minutes. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Even on overcast days, ensure the application and frequent reapplication of sunscreen with at least an SPF 30, especially post swim or outdoor exercise. Watch out! Reflections from sand and water can surge UV radiation exposure.