August weather forecastIwakura, Japan
August
Weather in August
August, the last month of the summer in Iwakura, is a tropical month, with an average temperature ranging between min 23.2°C (73.8°F) and max 32°C (89.6°F).Temperature
August tends to be the warmest month, with temperatures averaging a daily high of 32°C (89.6°F) and a low of 23.2°C (73.8°F).Heat index
During August, the heat index is evaluated at a scorching 42°C (107.6°F). Take additional safety steps, risk of heat exhaustion and heat cramps is notable. Prolonged activity may cause heatstroke.Metrics for the heat index primarily focus on shaded spots and light wind conditions. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'feels like' or 'felt air temperature', gauges the sensation of temperature factoring in the air's moisture content. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. An elevated level of relative humidity hinders evaporation, leading to decreased heat elimination from the body, inducing a sensation of excess heat. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.
Humidity
In August, the average relative humidity is 74%.Rainfall
In Iwakura, in August, during 17.6 rainfall days, 92mm (3.62") of precipitation is typically accumulated. Throughout the year, in Iwakura, there are 147.8 rainfall days, and 833mm (32.8") of precipitation is accumulated.Snowfall
In Iwakura, snow does not fall in March through November.Daylight
In August, the average length of the day in Iwakura is 13h and 28min.On the first day of August, sunrise is at 05:01 and sunset at 18:56. On the last day of the month, sunrise is at 05:24 and sunset at 18:21 JST.
Sunshine
The month with the most sunshine in Iwakura is August, with an average of 10.5h of sunshine.UV index
The months with the highest UV index in Iwakura are July and August, with an average maximum UV index of 7. 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: A maximum high UV index of 7 in August translates into the following recommendations:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Iwakura, Japan
- Average high temperature in August: 32°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 August: 23.2°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 August
Iwakura, Japan
- Average pressure in August: 1010.1mbar
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 August
Iwakura, Japan
- Average wind speed in August: 6.5km/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 August
Iwakura, Japan
- Average humidity in August: 74%
The month with the highest relative humidity is July (79%).
The month with the lowest relative humidity is May (70%).
Average rainfall in August
Iwakura, Japan
- Average rainfall in August: 92mm
The wettest month (with the highest rainfall) is July (164mm).
The driest month (with the least rainfall) is January (19mm).
Average rainfall days in August
Iwakura, Japan
- Average rainfall days in August: 17.6 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 August
Iwakura, Japan
- Average snowfall in August: 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 August
Iwakura, Japan
- Average snowfall days in August: 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 August /
Average sunshine in August
Iwakura, Japan
- Average daylight in August: 13h and 30min
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 August: 10h and 30min
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 August
Iwakura, Japan
- Average sunshine days in August: 10.1 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 August
Iwakura, Japan
- Average UV index in August: 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 August
Iwakura, Japan
- Average cloud cover in August: 36
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 August
Iwakura, Japan
- Average visibility in August: 9km
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).





