August weather forecastIruma, Japan
August
Weather in August
The last month of the summer, August, is also a hot month in Iruma, Japan, with an average temperature fluctuating between 24.7°C (76.5°F) and 32°C (89.6°F).Temperature
Iruma, Japan, witnesses the warmest weather in August, with temperatures averaging a high of 32°C (89.6°F) and a low of 24.7°C (76.5°F).Heat index
The heat index value during August is evaluated at an extremely hot 40°C (104°F). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.Always consider that heat index estimations are for light winds and places in the shade. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a value derived by merging air temperature with the humidity to convey how the climate feels. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. Heightened relative humidity interferes with the body's usual cooling mechanism by reducing evaporation, subsequently decreasing the body's cooling rate and increasing the sensation of heat. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.
Humidity
In August, the average relative humidity is 70%.Rainfall
In August, the rain falls for 16.3 days. Throughout August, 64mm (2.52") of precipitation is accumulated. Throughout the year, there are 146.2 rainfall days, and 669mm (26.34") of precipitation is accumulated.Snowfall
In Iruma, snow does not fall in April through October and December.Daylight
In August, the average length of the day is 13h and 29min.On the first day of the month, sunrise is at 04:50 and sunset at 18:47. On the last day of August, in Iruma, sunrise is at 05:13 and sunset at 18:11 JST.
Sunshine
With an average of 9.8h of sunshine, August has the most sunshine of the year in Iruma.UV index
In Iruma, the average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: In August, the maximum UV index of 6 transforms into these recommendations:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Iruma, 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 (8.4°C).
- Average low temperature in August: 24.7°C
The month with the highest average low temperature is August (24.7°C).
The coldest month (with the lowest average low temperature) is January (1.4°C).
Average pressure in August
Iruma, Japan
- Average pressure in August: 1010.3mbar
The month with the highest atmospheric pressure is November (1018.4mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).
Average wind speed in August
Iruma, Japan
- Average wind speed in August: 8.8km/h
The windiest month (with the highest average wind speed) is April (11.5km/h).
The calmest month (with the lowest average wind speed) is July (8.7km/h).
Average humidity in August
Iruma, Japan
- Average humidity in August: 70%
The months with the highest relative humidity are June and July (73%).
The month with the lowest relative humidity is January (58%).
Average rainfall in August
Iruma, Japan
- Average rainfall in August: 64mm
The wettest month (with the highest rainfall) is October (102mm).
The driest month (with the least rainfall) is December (21mm).
Average rainfall days in August
Iruma, Japan
- Average rainfall days in August: 16.3 days
The month with the highest number of rainy days is June (18.5 days).
The month with the least rainy days is January (4.8 days).
Average snowfall in August
Iruma, Japan
- Average snowfall in August: 0mm
The month with the highest snowfall is February (39mm).
The months with the least snowfall are April, May, June, July, August, September, October and December (0mm).
Average snowfall days in August
Iruma, Japan
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (2.1 days).
The months with the least snowfall days are April, May, June, July, August, September, October and December (0 days).
Average daylight in August /
Average sunshine in August
Iruma, 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: 9h and 48min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The months with the least sunshine are February and November (Average sunshine: 6h and 12min).
Average sunshine days in August
Iruma, Japan
- Average sunshine days in August: 11.3 days
The month with the most sunshine days is January (25.3 days).
The month with the least sunshine days is June (9.1 days).
Average UV index in August
Iruma, Japan
- Average UV index in August: 6
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in August
Iruma, Japan
- Average cloud cover in August: 38
The month with the most cloud cover is June (Cloud cover 45).
The month with the least cloud cover is January (Cloud cover 26).
Average visibility in August
Iruma, Japan
- Average visibility in August: 9km
The months with the highest visibility are January, February, March, April, May, November and December (10km).
The months with the lowest visibility are June, July, August, September and October (9km).





