July weather forecastKoshihara, Japan

Weather in July

July, like June, in Koshihara, Japan, is a moderately hot summer month, with an average temperature fluctuating between 28.1°C (82.6°F) and 29°C (84.2°F).

Temperature

Koshihara's weather in July, with an average high-temperature of a still warm 29°C (84.2°F), subtly shifts from June's 27.2°C (81°F). In Koshihara, the July nights are characterized by an average low-temperature of 28.1°C (82.6°F), a minor dip from daytime readings.

Heat index

July's mean heat index is evaluated at a sweltering 35°C (95°F). Greater preventive actions are needed, heat exhaustion and heat cramps are likely. Persistent activity could provoke heatstroke.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', arises from combining readings of air temperature and relative moisture content. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. When the air holds a significant amount of moisture, the efficiency of the evaporation process is decreased, preventing the body from cooling down efficiently, leading to the sensation of overheating. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.

Humidity

In July, the average relative humidity in Koshihara is 83%.

Rainfall

In Koshihara, Japan, in July, during 16.4 rainfall days, 129mm (5.08") of precipitation is typically accumulated. Throughout the year, there are 227.4 rainfall days, and 1405mm (55.31") of precipitation is accumulated.

Daylight

The average length of the day in July in Koshihara is 13h and 36min.
On the first day of July, sunrise is at 05:40 and sunset at 19:25. On the last day of the month, sunrise is at 05:54 and sunset at 19:16 JST.

Sunshine

With an average of 10.5h of sunshine, July has the most sunshine of the year in Koshihara.

UV index

June through September, with an average maximum UV index of 7, are months with the highest UV index in Koshihara, Japan. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: The UV index of 7 during July leads to these advisories:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.