July weather forecast
Saint Lucie, FL

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Weather in July

July, like June, is another hot summer month in Saint Lucie, Florida, with an average temperature ranging between max 87.4°F (30.8°C) and min 78.1°F (25.6°C).

Temperature

The transition into July is marked with an average high-temperature of a still tropical 87.4°F (30.8°C), showing an insignificant shift from June's 86.2°F (30.1°C). Nighttime temperature dips to a mean of 78.1°F (25.6°C) during July.

Heat index

In July, the average heat index is calculated to be an extremely hot 104°F (40°C). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.
Observations indicate that the heat index values are for shady locations with light wind. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. 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. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.

Humidity

In Saint Lucie, the average relative humidity in July is 78%.

Rainfall

In Saint Lucie, in July, during 26.8 rainfall days, 6.61" (168mm) of precipitation is typically accumulated. In Saint Lucie, during the entire year, the rain falls for 221.2 days and collects up to 46.26" (1175mm) of precipitation.

Daylight

In Saint Lucie, Florida, the average length of the day in July is 13h and 41min.
On the first day of the month, sunrise is at 6:30 am and sunset at 8:20 pm. On the last day of July, sunrise is at 6:44 am and sunset at 8:10 pm EDT.

Sunshine

With an average of 10.7h of sunshine, July has the most sunshine of the year in Saint Lucie.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the average person.
Note: During July, 7 as the daily maximum UV index converts into the following advice:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot in Saint Lucie during July?

The high-temperature, in July, in Saint Lucie, is 87.4°F (30.8°C), while the low-temperature averages to 78.1°F (25.6°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in July is calculated to be 104°F (40°C).

What is the average humidity in July in Saint Lucie?

In Saint Lucie, the average relative humidity in July is 78%.

How many days does it rain in July in Saint Lucie?

In Saint Lucie, in July, during 26.8 rainfall days, 6.61" (168mm) of precipitation is typically accumulated.

What is the average length of the day in July in Saint Lucie?

The average day length in July in Saint Lucie, Florida, is 13h and 41min.

When is the sunrise / sunset in July in Saint Lucie?

On the first day of July in Saint Lucie, Florida, sunrise is at 6:30 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 6:44 am and sunset at 8:10 pm EDT.

What month has the most sunshine in Saint Lucie?

July has the most sunshine of the year, with an average of 10.7h of sunshine.

How many hours of sunshine does Saint Lucie have in July?

In July, the average sunshine duration in Saint Lucie, Florida, is 10.7h.

When is the highest UV index in Saint Lucie?

The months with the highest UV index in Saint Lucie, Florida, are May through September, with an average maximum UV index of 7.

What is the UV index reading in July in Saint Lucie?

In July, the average daily maximum UV index is 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Saint Lucie, FL

Average temperature in July - Saint Lucie, FL
  • Average high temperature in July: 87.4°F

The warmest month (with the highest average high temperature) is August (87.6°F).
The month with the lowest average high temperature is January (70.5°F).

  • Average low temperature in July: 78.1°F

The month with the highest average low temperature is August (78.4°F).
The coldest month (with the lowest average low temperature) is January (59.2°F).

Average pressure in July
Saint Lucie, FL

Average pressure in July - Saint Lucie, FL
  • Average pressure in July: 30.03"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is September (29.96"Hg).

Average wind speed in July
Saint Lucie, FL

Average wind speed in July - Saint Lucie, FL
  • Average wind speed in July: 6.6mph

The windiest months (with the highest average wind speed) are January and March (9.4mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).

Average humidity in July
Saint Lucie, FL

Average humidity in July - Saint Lucie, FL
  • Average humidity in July: 78%

The month with the highest relative humidity is August (79%).
The month with the lowest relative humidity is March (72%).

Average rainfall in July
Saint Lucie, FL

Average rainfall in July - Saint Lucie, FL
  • Average rainfall in July: 6.61"

The wettest month (with the highest rainfall) is August (8.23").
The driest month (with the least rainfall) is February (1.26").

Average rainfall days in July
Saint Lucie, FL

Average rainfall days in July - Saint Lucie, FL
  • Average rainfall days in July: 26.8 days

The month with the highest number of rainy days is August (28.1 days).
The month with the least rainy days is January (11.3 days).

Average daylight in July /
Average sunshine in July
Saint Lucie, FL

Average daylight in July / Average sunshine in July - Saint Lucie, FL
  • Average daylight in July: 13h and 4min

The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).

  • Average sunshine in July: 10h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 54min).

Average sunshine days in July
Saint Lucie, FL

Average sunshine days in July - Saint Lucie, FL
  • Average sunshine days in July: 2 days

The month with the most sunshine days is January (17 days).
The month with the least sunshine days is August (0.8 days).

Average UV index in July
Saint Lucie, FL

Average UV index in July - Saint Lucie, FL
  • Average UV index in July: 7

The months with the highest UV index are May, June, July, August and September (UV index 7).
The months with the lowest UV index are January, February and December (UV index 5).

Average cloud cover in July
Saint Lucie, FL

Average cloud cover in July - Saint Lucie, FL
  • Average cloud cover in July: 30

The months with the most cloud cover are November and December (Cloud cover 37).
The month with the least cloud cover is May (Cloud cover 28).

Average visibility in July
Saint Lucie, FL

Average visibility in July - Saint Lucie, FL
  • Average visibility in July: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Saint Lucie, Florida, USA

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