July weather forecast
Port Antonio, Jamaica

Patterns within the Port Antonio weather system shift in July. The increased rainfall correlates with an increase in the number of rainy days. A slight rise in temperatures offers the warmest month of the year with temperatures reaching up to 31°C (87.8°F) during the day. A reduction of daylight hours is compensated by maximum sea temperatures. The UV index continues its reign at the top indicating high-intensity sunshine.

Temperature

July and August mark Port Antonio's peak of temperatures, averaging a high-temperature of 31°C (87.8°F).

Rainfall

In July, the rain falls for 13 days. Throughout July, 185mm (7.28") of precipitation is accumulated. Throughout the year, in Port Antonio, there are 125 rainfall days, and 2639mm (103.9") of precipitation is accumulated.

Sea temperature

In July, the average sea temperature is 28.9°C (84°F).
Note: For swimming, diving, or other water activities, temperatures from 25°C (77°F) to 29°C (84.2°F) provide the most enjoyable experience for extended periods without discomfort.

Daylight

In July, the average length of the day in Port Antonio is 13h and 6min.
On the first day of the month, sunrise is at 05:33 and sunset at 18:45. On the last day of July, in Port Antonio, sunrise is at 05:43 and sunset at 18:40 EST.

Sunshine

March, April and July, with an average of 8h of sunshine, are months with the most sunshine in Port Antonio.

UV index

The months with the highest UV index are March through September, with an average maximum UV index of 12. A UV Index estimate of 11, and higher, represents an excessive health risk from exposure to the Sun's UV rays for the average person.
Note: The daily high UV index of 12 during July translates into the following recommendations:
Execute every important safeguard, as unprotected skin and eyes could burn within moments. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Even if it's cloudy, generously apply and frequently reapply a sunscreen with no less than a 30 sun protection factor after each swim or outdoor exercise. Alert! Sand and water increase UV exposure due to their reflective properties.