June weather forecast
Sydney, FL

The first month of the summer, June, is still a hot month in Sydney, Florida, with an average temperature fluctuating between 89.2°F (31.8°C) and 74.8°F (23.8°C).

Temperature

Sydney experiences a recorded average high-temperature of a still hot 89.2°F (31.8°C) in June, closely aligned with May's 86.5°F (30.3°C). During the month of June, an average low-temperature of 74.8°F (23.8°C) is recorded.

Heat index

The average heat index in June is calculated to be a blistering 107.6°F (42°C). Take more safety measures, heat exhaustion and heat cramps are potential outcomes. Persistent activity might lead to heatstroke.
Heat index readings emphasize conditions of light breezes and shaded spots. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'real feel' or 'feels like', quantifies the warmth felt when relative humidity is considered. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. 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 are particularly important for children. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
Evaporating sweat, thanks to perspiration, acts as a natural air conditioner for the human body. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. Rising body temperatures due to excess heat retention could signify impending heat disorders.

Humidity

The average relative humidity in June is 75%.

Rainfall

In Sydney, in June, during 24.3 rainfall days, 5.71" (145mm) of precipitation is typically accumulated. Throughout the year, there are 192.2 rainfall days, and 37.91" (963mm) of precipitation is accumulated.

Daylight

The month with the longest days is June, with an average of 13h and 54min of daylight.
On the first day of the month, sunrise is at 6:32 am and sunset at 8:21 pm. On the last day of June, sunrise is at 6:36 am and sunset at 8:29 pm EDT.

Sunshine

In June, the average sunshine is 10.5h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum UV index of 7 during June leads to these instructions:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.