July weather forecast
Toa Alta, PR

July, like June, in Toa Alta, Puerto Rico, is another warm summer month, with an average temperature varying between 84.7°F (29.3°C) and 78.3°F (25.7°C).

Temperature

In Toa Alta, the average high-temperature in July is relatively the same as in June - a still warm 84.7°F (29.3°C). In Toa Alta, Puerto Rico, in July, the average low-temperature is 78.3°F (25.7°C).

Heat index

In July, the average heat index is estimated at a torrid 95°F (35°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'real feel', 'felt air temperature', or 'apparent temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. This effect is individual, with diverse people perceiving weather differently for numerous reasons (wind, differences in body mass, height, and shape, clothing), and activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

The months with the highest humidity in Toa Alta are May through July and November, with an average relative humidity of 79%.

Rainfall

In Toa Alta, in July, during 16.8 rainfall days, 2.01" (51mm) of precipitation is typically accumulated. Throughout the year, in Toa Alta, there are 223.5 rainfall days, and 27.95" (710mm) of precipitation is accumulated.

Daylight

In July, the average length of the day is 13h and 7min.
On the first day of the month, sunrise is at 5:52 am and sunset at 7:05 pm. On the last day of July, in Toa Alta, sunrise is at 6:02 am and sunset at 7:00 pm AST.

Sunshine

The average sunshine in July in Toa Alta is 10.2h.

UV index

The months with the highest UV index are May through November, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: The daily maximum UV index of 7 in July interpret into the following advice:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.