July weather forecast
Puerto Rico, Bolivia

July, the same as June, in Puerto Rico, Bolivia, is another hot winter month, with an average temperature varying between 19.7°C (67.5°F) and 32.3°C (90.1°F).

Temperature

July's onset records an average high-temperature of a still tropical 32.3°C (90.1°F), a near match to June's 30.7°C (87.3°F). Puerto Rico experiences a drastic reduction from day temperatures to an average low of 19.7°C (67.5°F) in July.

Heat index

For most parts of July, the heat index is computed to be a blistering 40°C (104°F). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.
Heat index readings emphasize conditions of light breezes and shaded spots. 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' or 'felt air temperature', joins air temperature with relative humidity to produce a temperature perception for humans. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
By perspiring, the human body can shed its excessive warmth since evaporated sweat cools it off. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.

Humidity

In Puerto Rico, the average relative humidity in July is 66%.

Rainfall

The month with the least rainfall is July, when the rain falls for 6.7 days and typically collects 11mm (0.43") of precipitation.

Daylight

In Puerto Rico, the average length of the day in July is 11h and 33min.
On the first day of July, sunrise is at 06:49 and sunset at 18:18. On the last day of the month, sunrise is at 06:47 and sunset at 18:25 -04.

Sunshine

In Puerto Rico, the average sunshine in July is 9.3h.

UV index

The months with the highest UV index in Puerto Rico are July through November, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for average individuals.
Note: A typical high UV index of 7 in July suggests the following recommendations:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.