June weather forecastYonaguni, Japan

Weather in June

The first month of the summer, June, is still a warm month in Yonaguni, Japan, with an average temperature ranging between max 29.8°C (85.6°F) and min 25.6°C (78.1°F).

Temperature

June registers an average high-temperature of a still warm 29.8°C (85.6°F), slightly varied from May's 27.7°C (81.9°F). The low temperature average in Yonaguni during June reflects a slight decrease to a still moderately hot 25.6°C (78.1°F) from the day's peak.

Heat index

June's average heat index is evaluated at a fiery hot 38°C (100.4°F). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.
Records show heat index calculations are tailored for shaded regions and mild winds. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. 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.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.

Humidity

With an average relative humidity of 83%, June is the most humid month in Yonaguni.

Rainfall

During June, Yonaguni regularly aggregates up to 164mm (6.46") of precipitation. During the entire year, Yonaguni aggregates up to 2353mm (92.64") of precipitation.

Sea temperature

In Yonaguni, in June, the average water temperature is 28.3°C (82.9°F).
Note: Temperatures between 25°C (77°F) and 29°C (84.2°F) in water are ideal for swimming, diving, and other activities, providing enjoyment and comfort for extended durations.

Daylight

June has the longest days of the year in Yonaguni, with an average of 13h and 36min of daylight.
On the first day of June in Yonaguni, sunrise is at 05:59 and sunset at 19:32. On the last day of the month, sunrise is at 06:02 and sunset at 19:40 JST.

Sunshine

In June, the average sunshine is 6.1h.