August weather forecastIiyama, Japan
August weather forecast for Iiyama, Japan: The last month of the summer, August, is another warm month in Iiyama, Japan, with an average temperature ranging between max 27.8°C (82°F) and min 17.7°C (63.9°F). In August, the average heat index, which takes the relative humidity and factors it into the air temperature reading, is calculated to be 32°C (89.6°F).
August
Weather in August
The last month of the summer, August, is another warm month in Iiyama, Japan, with an average temperature ranging between max 27.8°C (82°F) and min 17.7°C (63.9°F).Temperature
In Iiyama, the highest average temperatures are observed in August, with a high of 27.8°C (82°F) and a low of 17.7°C (63.9°F).Heat index
August's average heat index is calculated to be a tropical 32°C (89.6°F). Enduring exposure and ongoing activity could cause a sense of fatigue and subsequent heat cramps.Consider that heat index readings are for situations in the shade and light wind. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is an aggregate value of air's warmth and moisture to show the human-felt temperature. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
Humidity
The average relative humidity in August in Iiyama is 82%.Rainfall
In Iiyama, in August, during 24.2 rainfall days, 111mm (4.37") of precipitation is typically accumulated. Throughout the year, there are 201.2 rainfall days, and 928mm (36.54") of precipitation is accumulated.Snowfall
May through October are months without snowfall in Iiyama.Daylight
In August, the average length of the day is 13h and 33min.On the first day of the month, sunrise is at 04:52 and sunset at 18:53. On the last day of August, sunrise is at 05:16 and sunset at 18:16 JST.
Sunshine
August has the most sunshine of the year, with an average of 10.4h of sunshine.UV index
The average daily maximum UV index in August is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 5 in August translates into these instructions:
Be vigilant - Preventing sunburn is recommended. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Iiyama, Japan
- Average high temperature in August: 27.8°C
The warmest month (with the highest average high temperature) is August (27.8°C).
The month with the lowest average high temperature is January (0.8°C).
- Average low temperature in August: 17.7°C
The month with the highest average low temperature is August (17.7°C).
The coldest month (with the lowest average low temperature) is January (-6.5°C).
Average pressure in August
Iiyama, Japan
- Average pressure in August: 1010.4mbar
The month with the highest atmospheric pressure is November (1019.2mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).
Average wind speed in August
Iiyama, Japan
- Average wind speed in August: 5.6km/h
The windiest month (with the highest average wind speed) is January (8.9km/h).
The calmest month (with the lowest average wind speed) is August (5.6km/h).
Average humidity in August
Iiyama, Japan
- Average humidity in August: 82%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is May (72%).
Average rainfall in August
Iiyama, Japan
- Average rainfall in August: 111mm
The wettest month (with the highest rainfall) is July (160mm).
The driest month (with the least rainfall) is November (47mm).
Average rainfall days in August
Iiyama, Japan
- Average rainfall days in August: 24.2 days
The month with the highest number of rainy days is July (24.9 days).
The month with the least rainy days is February (9.9 days).
Average snowfall in August
Iiyama, Japan
- Average snowfall in August: 0mm
The month with the highest snowfall is January (398mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in August
Iiyama, Japan
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (20.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in August /
Average sunshine in August
Iiyama, Japan
- Average daylight in August: 13h and 30min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in August: 10h and 24min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).
Average sunshine days in August
Iiyama, Japan
- Average sunshine days in August: 4.8 days
The month with the most sunshine days is May (12.2 days).
The month with the least sunshine days is July (4.3 days).
Average UV index in August
Iiyama, Japan
- Average UV index in August: 5
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in August
Iiyama, Japan
- Average cloud cover in August: 40
The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is May (Cloud cover 33).
Average visibility in August
Iiyama, Japan
- Average visibility in August: 8km
The months with the highest visibility are April, May and November (9km).
The months with the lowest visibility are January, February, March, June, July, August, September, October and December (8km).
