June weather forecast
Gretna, LA

Gretna embraces the peak of summer temperatures during the month of June. This change in weather, coupled with the longest daylight hours, makes June a month of big, bold and sun-drenched days. However, June differs from the preceding month and receives the most rainfall at 0.87" (22mm). The blend of rain and sunshine has a direct effect on the city's humidity, keeping overall weather conditions medium-to-high. June also records low wind conditions with maximum average speeds peaking at 7.3mph (11.7km/h).

Temperature

The commencement of June sees a minor shift in the average high-temperature, moving from a moderately hot 82.9°F (28.3°C) in May to a tropical 88.3°F (31.3°C). During June, Gretna's temperature averages to a moderately hot 77.7°F (25.4°C) at night.

Heat index

In June, the heat index is evaluated at a very hot 102.2°F (39°C). Emphasize additional safety, risk of heat cramps and heat exhaustion is high. Continuous activity might result in heatstroke.
Heat index evaluations are typically in the context of light winds and shaded environments. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'feels like' or 'felt air temperature', evaluates the perceived heat by adding the effect of moisture in the air. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
The body's natural response to excessive warmth is perspiration, as it allows for cooling through sweat evaporation. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

In Gretna, Louisiana, the average relative humidity in June is 72%.

Rainfall

In June, the rain falls for 11.9 days. Throughout June, 0.87" (22mm) of precipitation is accumulated. In Gretna, during the entire year, the rain falls for 112.1 days and collects up to 9.37" (238mm) of precipitation.

Snowfall

February through December are months without snowfall.

Daylight

June has the longest days of the year, with an average of 14h and 0min of daylight.
On the first day of June, sunrise is at 5:59 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 6:02 am and sunset at 8:05 pm CDT.

Sunshine

June has the most sunshine of the year in Gretna, with an average of 11h of sunshine.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 7 in June transforms into the following instructions:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.