July weather forecast
Lafayette, LA

July is the season of high heat in Lafayette with the temperatures soaring to a peak of 89.8°F (32.1°C). Despite the heat, there is a significant decrease in wind speed from 5.9mph (9.5km/h) to 5.3mph (8.5km/h), compared to June. The onset of summer is marked by frequent rain showers, adding a touch of freshness to the environment. Even though conditions can be lingeringly hot, the timely showers mitigate the severity. Be prepared for a mix of hot and rainy weather if planning a trip during July.

Temperature

As July takes its course, Lafayette's average high-temperature registers at a still hot 89.8°F (32.1°C), closely aligning with the preceding month. Throughout the month of July, Lafayette expects an average low of 74.7°F (23.7°C).

Heat index

The heat index for July is evaluated at a life-threatening hot 113°F (45°C). Stay alert: Heat cramps and heat exhaustion are expected. Heatstroke is a likely outcome of ongoing activity.
Observations indicate that the heat index values are for shady locations with light wind. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', comes about by integrating the temperature readings with the humidity levels. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
Perspiring is a crucial mechanism for the human body, allowing it to release excessive warmth through evaporating sweat. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.

Humidity

In July, the average relative humidity is 80%.

Rainfall

In July, the rain falls for 17.9 days. Throughout July, 2.52" (64mm) of precipitation is accumulated. In Lafayette, during the entire year, the rain falls for 143.3 days and collects up to 17.91" (455mm) of precipitation.

Snowfall

February through December are months without snowfall in Lafayette.

Daylight

In Lafayette, Louisiana, the average length of the day in July is 13h and 52min.
On the first day of the month, sunrise is at 6:10 am and sunset at 8:13 pm. On the last day of July, sunrise is at 6:26 am and sunset at 8:02 pm CDT.

Sunshine

In July, the average sunshine is 10.4h.

UV index

May through August, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: The average daily UV index of 7 in July transforms into the following instructions:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. 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. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.