July weather forecast
Portmore, Jamaica

July presents Portmore, Jamaica at its warmest, with temperatures soaring to the highest point all year. The city also continues to receive high rainfall. The steady wind helps to balance the high temperature and humidity, maintaining a comfortable atmosphere. Although July is a peak summer month, it offers a unique blend of warm weather and substantial rainfall, creating a tropical summer paradise.

Temperature

Portmore, Jamaica, indicates an average high-temperature of a hot 30°C (86°F) in July, showing minor variation from June's 29.3°C (84.7°F). In the month of July, the average low-temperature usually rests at a moderately hot 24.3°C (75.7°F).

Heat index

In July, the average heat index is appraised at a sweltering 37°C (98.6°F). Adopt heightened safety measures, heat cramps and heat exhaustion may occur. Sustained activity might cause heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', unifies temperature and humidity readings to offer a comprehensive feel of warmth. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
Through perspiration, the body has a natural mechanism to eliminate excessive heat via sweat evaporation. An elevated level of relative humidity hinders evaporation, leading to decreased heat elimination from the body, inducing a sensation of excess heat. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.

Humidity

The average relative humidity in July in Portmore is 79%.

Rainfall

In Portmore, in July, during 26.2 rainfall days, 120mm (4.72") of precipitation is typically accumulated. In Portmore, during the entire year, the rain falls for 310.9 days and collects up to 1286mm (50.63") of precipitation.

Sea temperature

In July, the average sea temperature is 28.8°C (83.8°F).
Note: For activities such as swimming and diving, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as particularly pleasant and satisfying for prolonged periods without feeling uneasy.

Daylight

In July, the average length of the day in Portmore is 13h and 5min.
On the first day of July in Portmore, Jamaica, sunrise is at 05:36 and sunset at 18:47. On the last day of the month, sunrise is at 05:45 and sunset at 18:41 EST.

Sunshine

In Portmore, the average sunshine in July is 10.6h.

UV index

June through October, with an average maximum UV index of 7, are months with the highest UV index in Portmore. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for average individuals.
Note: In July, the maximum UV index of 7 transforms into these recommendations:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Stay cautious! Sand and water reflections increase UV radiation potency.