July weather forecastIwakura, Japan

July

Weather in July

July, the same as June, is another warm summer month in Iwakura, Japan, with an average temperature varying between 21.5°C (70.7°F) and 29.5°C (85.1°F).

Temperature

Iwakura, Japan, experiences a minor temperature shift with the start of July, with average high-temperatures moving from a moderately hot 25.8°C (78.4°F) in June to a still warm 29.5°C (85.1°F). During July, Iwakura observes a consistent average nighttime temperature of 21.5°C (70.7°F).

Heat index

During July, the heat index is evaluated at a fiery hot 36°C (96.8°F). Adopt additional preventive measures, heat cramps and heat exhaustion are potential outcomes. Prolonged activity may trigger heatstroke.
Take note of the fact that heat index values are based on shaded circumstances with light airflows. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is the result of factoring in humidity to the air temperature, indicating perceived warmth. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
Sweat evaporation, driven by perspiration, is the method the human body uses to rid itself of excessive warmth. With higher relative humidity, the rate of evaporation is reduced, resulting in increased heat retention in the body compared to drier air. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.

Humidity

July is the most humid month in Iwakura, with an average relative humidity of 79%.

Rainfall

The month with the most rainfall is July, when the rain falls for 20.8 days and typically aggregates up to 164mm (6.46") of precipitation.

Snowfall

In Iwakura, Japan, snow does not fall in March through November.

Daylight

The average length of the day in July is 14h and 16min.
On the first day of July in Iwakura, sunrise is at 04:41 and sunset at 19:11. On the last day of the month, sunrise is at 05:00 and sunset at 18:57 JST.

Sunshine

In July, the average sunshine is 8.8h.

UV index

July and August, with an average maximum UV index of 7, are months with the highest UV index in Iwakura, Japan. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: An average maximum UV index of 7 in July leads to these recommendations:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.

Frequently asked questions

In Iwakura, 29.5°C (85.1°F) is the average high-temperature and 21.5°C (70.7°F) is the average low-temperature during July. In July, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which represents the influence of relative humidity on air temperature, is evaluated at 36°C (96.8°F).

The most humid month in Iwakura, Japan, is July, with an average relative humidity of 79%.

In July, the average relative humidity in Iwakura is 79%.

July is the month with the most rainfall in Iwakura. Rain falls for 20.8 days and accumulates 164mm (6.46") of precipitation.

In Iwakura, during July, the rain falls for 20.8 days and regularly aggregates up to 164mm (6.46") of precipitation.

In Iwakura, snow does not fall in March through November.

The average day length in July in Iwakura is 14h and 16min.

On the first day of July in Iwakura, sunrise is at 04:41 and sunset at 19:11. On the last day of the month, sunrise is at 05:00 and sunset at 18:57 JST.

In July, the average sunshine duration in Iwakura, Japan, is 8.8h.

The months with the highest UV index are July and August, with an average maximum UV index of 7.

The average daily maximum UV index in July is 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Iwakura, Japan

  • Average high temperature in July: 29.5°C

The warmest month (with the highest average high temperature) is August (32°C).
The month with the lowest average high temperature is January (6.6°C).

  • Average low temperature in July: 21.5°C

The month with the highest average low temperature is August (23.2°C).
The coldest month (with the lowest average low temperature) is January (-0.3°C).

Average pressure in July
Iwakura, Japan

  • Average pressure in July: 1009.7mbar

The month with the highest atmospheric pressure is November (1019.3mbar).
The month with the lowest atmospheric pressure is June (1009.1mbar).

Average wind speed in July
Iwakura, Japan

  • Average wind speed in July: 6.3km/h

The windiest month (with the highest average wind speed) is March (8.5km/h).
The calmest month (with the lowest average wind speed) is July (6.3km/h).

Average humidity in July
Iwakura, Japan

  • Average humidity in July: 79%

The month with the highest relative humidity is July (79%).
The month with the lowest relative humidity is May (70%).

Average rainfall in July
Iwakura, Japan

  • Average rainfall in July: 164mm

The wettest month (with the highest rainfall) is July (164mm).
The driest month (with the least rainfall) is January (19mm).

Average rainfall days in July
Iwakura, Japan

  • Average rainfall days in July: 20.8 days

The month with the highest number of rainy days is July (20.8 days).
The month with the least rainy days is January (6.8 days).

Average snowfall in July
Iwakura, Japan

  • Average snowfall in July: 0mm

The month with the highest snowfall is January (10mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0mm).

Average snowfall days in July
Iwakura, Japan

  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (1.8 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

Average daylight in July /
Average sunshine in July
Iwakura, Japan

  • Average daylight in July: 14h and 18min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in July: 8h and 48min

The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 5h and 42min).

Average sunshine days in July
Iwakura, Japan

  • Average sunshine days in July: 7.4 days

The month with the most sunshine days is January (22.3 days).
The month with the least sunshine days is July (7.4 days).

Average UV index in July
Iwakura, Japan

  • Average UV index in July: 7

The months with the highest UV index are July and August (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).

Average cloud cover in July
Iwakura, Japan

  • Average cloud cover in July: 48

The month with the most cloud cover is July (Cloud cover 48).
The month with the least cloud cover is November (Cloud cover 32).

Average visibility in July
Iwakura, Japan

  • Average visibility in July: 8km

The months with the highest visibility are January, February, March, April, May, August, October, November and December (9km).
The months with the lowest visibility are June, July and September (8km).