June weather forecast
Bay Saint Louis, MS

June epitomizes the typical summer season in Bay Saint Louis, Mississippi. The sun is high, the days are long, and the weather is markedly warmer than May. It is characteristically humid, though not excessively so, and rainfall starts to intensify. Despite the increased rainfall, the city gets to enjoy the year's maximum average daily sunshine of 11.2 hours. June's sea temperature offers a balmy 84.1°F (28.9°C), making it a favorite time for swimmers and surfers alike.

Temperature

June brings a slight elevation in the average high-temperature, transitioning from May's moderately hot 81.7°F (27.6°C) to a tropical 88°F (31.1°C). An average low-temperature of 76.5°F (24.7°C) marks the nights in Bay Saint Louis throughout June.

Heat index

In June, the average heat index is calculated to be a very hot 102.2°F (39°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is an aggregate value of air's warmth and moisture to show the human-felt temperature. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In June, the average relative humidity is 74%.

Rainfall

In June, the rain falls for 13.9 days. Throughout June, 1.3" (33mm) of precipitation is accumulated. In Bay Saint Louis, during the entire year, the rain falls for 131.5 days and collects up to 12.01" (305mm) of precipitation.

Snowfall

In Bay Saint Louis, snow does not fall in February through December.

Ocean temperature

In Bay Saint Louis, in June, the average water temperature is 84°F (28.9°C).
Note: Water activities in surface temperatures between 77°F (25°C) and 84.2°F (29°C) are seen as exceptional and extremely agreeable for lengthened time spans.

Daylight

With an average of 14h and 6min of daylight, June has the longest days of the year.
On the first day of June, sunrise is at 5:55 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 5:59 am and sunset at 8:03 pm CDT.

Sunshine

With an average of 11.2h of sunshine, June has the most sunshine of the year.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In June, the maximum UV index of 7 suggests these recommendations:
Guard against overexposure. Protection from sun-induced harm is essential. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Stay alert! Reflective properties of sand and water amplify the Sun's UV radiation.