July weather forecast
Osaka, Japan

July signifies the height of summer in Osaka, featuring the hottest month of the year with temperatures set to reach as high as 31.6°C (88.9°F). Notably, humidity levels continue to rise, reaching the peak for the year, but frequent showers bring relief from the sweltering summer heat. Days remain long as daylight hours are still at their peak, offering plenty of time for outdoor activities. The increase in sea temperatures caters to beachgoers seeking an escape from the city's high heat. July is recognized for the balance between soaring temperatures and cooling showers.

Temperature

As Osaka welcomes July, the average high-temperature sees a modest rise, transitioning from a warm 27.8°C (82°F) in June to a tropical 31.6°C (88.9°F). Osaka in July anticipates an average nighttime temperature of 24.3°C (75.7°F).

Heat index

July's heat index is appraised at a fiery hot 39°C (102.2°F). Extra safeguards are necessary to prevent heat exhaustion and heat cramps. Prolonged activity might cause heatstroke.
Keep in mind the heat index values are meant for areas in shade and with light wind. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', takes into account both air temperature and humidity to illustrate what people actually feel. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

July is the most humid month in Osaka, Japan, with an average relative humidity of 70%.

Rainfall

In July, the rain falls for 9.9 days. Throughout July, 157mm (6.18") of precipitation is accumulated. Throughout the year, in Osaka, there are 98.1 rainfall days, and 1279mm (50.35") of precipitation is accumulated.

Snowfall

In Osaka, snow does not fall in March through December.

Sea temperature

In July, the average sea temperature in Osaka is 26°C (78.8°F).
Note: Water temperatures between 25°C (77°F) and 29°C (84.2°F) are regarded as highly pleasant, making all water activities enjoyable without any discomfort over long durations.

Daylight

The average length of the day in July in Osaka is 14h and 13min.
On the first day of July, sunrise is at 04:48 and sunset at 19:15. On the last day of the month, sunrise is at 05:07 and sunset at 19:01 JST.

Sunshine

The average sunshine in July in Osaka is 5.9h.

UV index

With an average maximum UV index of 11, July is the month with the highest UV index in Osaka, Japan. A UV Index reading of 11, and higher, represents an excessive health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum UV index of 11 during July translates into these guidelines:
Take all necessary precautions, as unprotected skin can burn in minutes. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Even if it's cloudy, generously apply and frequently reapply a sunscreen with no less than a 30 sun protection factor after each swim or outdoor exercise. Stay cautious! Sand and water reflections increase UV radiation potency.