July weather forecast
Saitama, Japan

July marks the heart of summer in Saitama, with the mercury hitting a high of 30.3°C (86.5°F). This month showcases the highest UV index levels due to long sunshine hours that rival the amount of daylight. Therefore, July is the time for some fun in the sun, with the city experiencing maximum warmth. While rainfall slowly subsides, humidity persists, and the city behaves under a combined effect of summer warmth and dampness. Without a doubt, the city's citizens manifest the most outdoor activity during this period, appreciating the weather's enjoyable aspects.

Temperature

In Saitama, the onset of July comes with a modest high-temperature shift, transitioning from June's moderately hot 25.9°C (78.6°F) to a tropical 30.3°C (86.5°F). Saitama registers a consistent average low-temperature of 23.4°C (74.1°F) during July.

Heat index

The heat index value for July is estimated at a torrid 37°C (98.6°F). Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', gauges the sensation of temperature factoring in the air's moisture content. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
The natural method the human body uses to remove excess heat is by perspiring and letting sweat evaporate. When relative humidity increases, the body's capacity to evaporate heat decreases, leading to a heightened sense of warmth. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.

Humidity

July is the most humid month, with an average relative humidity of 75%.

Rainfall

In Saitama, Japan, in July, during 14.9 rainfall days, 64mm (2.52") of precipitation is typically accumulated. Throughout the year, there are 138 rainfall days, and 580mm (22.83") of precipitation is accumulated.

Snowfall

April through October and December are months without snowfall.

Daylight

In July, the average length of the day is 14h and 19min.
On the first day of the month, sunrise is at 04:28 and sunset at 19:01. On the last day of July, in Saitama, sunrise is at 04:48 and sunset at 18:47 JST.

Sunshine

The average sunshine in July is 9.3h.

UV index

July is the month with the highest UV index, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for average individuals.
Note: The UV index of 7 during July leads to these advisories:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.