June weather forecast
Alpharetta, GA

June introduces the summer season in Alpharetta, when the temperature reaches up to 87.1°F (30.6°C). An increased number of sunny days contribute to extended hours of daylight, resulting in warmer conditions. Despite the rise in temperatures, the rainfall sees a small dip compared to May, providing respite from excessive wetness. The wind speed in June is at the lowest point so far for the year, leading to calm breezy days. Relative humidity remains around the same, indicating muggy conditions consistently throughout the month.

Temperature

June in Alpharetta brings a slight elevation in the average high-temperature, transitioning from May's moderately hot 79.5°F (26.4°C) to a hot 87.1°F (30.6°C). Throughout the month of June, Alpharetta sees a steady low-temperature average of 67.5°F (19.7°C).

Heat index

June's heat index is estimated at a sweltering 98.6°F (37°C). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.
Heat index evaluations are typically in the context of light winds and shaded environments. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
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. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. Heightened relative humidity interferes with the body's usual cooling mechanism by reducing evaporation, subsequently decreasing the body's cooling rate and increasing the sensation of heat. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

In June, the average relative humidity in Alpharetta, Georgia, is 71%.

Rainfall

In Alpharetta, in June, during 16.3 rainfall days, 2.2" (56mm) of precipitation is typically accumulated. In Alpharetta, during the entire year, the rain falls for 158.7 days and collects up to 26.06" (662mm) of precipitation.

Snowfall

In Alpharetta, snow does not fall in April through October.

Daylight

The month with the longest days is June, with an average of 14h and 24min of daylight.
On the first day of June, sunrise is at 6:26 am and sunset at 8:43 pm. On the last day of the month, sunrise is at 6:29 am and sunset at 8:52 pm EDT.

Sunshine

In June, the average sunshine is 10.5h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the average person.
Note: The UV index of 6 during June leads to these advisories:
Resist extreme sun exposure. Guarding against solar damage is essential. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. During bright days, sunglasses that offer UVA and UVB defense are recommended.