August weather forecastMoriyama, Japan
August
Weather in August
The last month of the summer, August, is a hot month in Moriyama, Japan, with an average temperature varying between 22.3°C (72.1°F) and 31.5°C (88.7°F).Temperature
August is the warmest month, with the temperature often reaching an average high of 31.5°C (88.7°F) and an average low of 22.3°C (72.1°F).Heat index
During August, the heat index is evaluated at a blisteringly hot 41°C (105.8°F). Implement additional safety measures to avoid heat cramps and heat exhaustion. Persistent activity might trigger heatstroke.In terms of the heat index, values are set with light wind and shade conditions in mind. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a value derived by merging air temperature with the humidity to convey how the climate feels. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.
Humidity
The average relative humidity in August is 77%.Rainfall
In Moriyama, in August, during 13.8 rainfall days, 65mm (2.56") of precipitation is typically accumulated. In Moriyama, during the entire year, the rain falls for 164.8 days and collects up to 721mm (28.39") of precipitation.Snowfall
May through November are months without snowfall in Moriyama.Daylight
In August, the average length of the day in Moriyama is 13h and 27min.On the first day of the month, sunrise is at 05:05 and sunset at 18:59. On the last day of August, sunrise is at 05:28 and sunset at 18:24 JST.
Sunshine
With an average of 9.4h of sunshine, August has the most sunshine of the year.UV index
The average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the average person.Note: The maximum UV index, 6 during August, leads to the following recommendations:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Moriyama, Japan
- Average high temperature in August: 31.5°C
The warmest month (with the highest average high temperature) is August (31.5°C).
The month with the lowest average high temperature is January (6°C).
- Average low temperature in August: 22.3°C
The month with the highest average low temperature is August (22.3°C).
The coldest month (with the lowest average low temperature) is January (-0.1°C).
Average pressure in August
Moriyama, Japan
- Average pressure in August: 1009.8mbar
The month with the highest atmospheric pressure is February (1019.6mbar).
The month with the lowest atmospheric pressure is June (1008.9mbar).
Average wind speed in August
Moriyama, Japan
- Average wind speed in August: 6.9km/h
The windiest months (with the highest average wind speed) are January and December (8.3km/h).
The calmest month (with the lowest average wind speed) is July (6.4km/h).
Average humidity in August
Moriyama, Japan
- Average humidity in August: 77%
The months with the highest relative humidity are January, July, October and December (81%).
The month with the lowest relative humidity is May (72%).
Average rainfall in August
Moriyama, Japan
- Average rainfall in August: 65mm
The wettest month (with the highest rainfall) is July (142mm).
The driest month (with the least rainfall) is November (26mm).
Average rainfall days in August
Moriyama, Japan
- Average rainfall days in August: 13.8 days
The month with the highest number of rainy days is July (18.6 days).
The month with the least rainy days is May (11.8 days).
Average snowfall in August
Moriyama, Japan
- Average snowfall in August: 0mm
The month with the highest snowfall is January (101mm).
The months with the least snowfall are May, June, July, August, September, October and November (0mm).
Average snowfall days in August
Moriyama, Japan
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are May, June, July, August, September, October and November (0 days).
Average daylight in August /
Average sunshine in August
Moriyama, 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 24min
The month with the most sunshine is August (Average sunshine: 9h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in August
Moriyama, Japan
- Average sunshine days in August: 14.7 days
The month with the most sunshine days is May (17.4 days).
The month with the least sunshine days is January (7.9 days).
Average UV index in August
Moriyama, Japan
- Average UV index in August: 6
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in August
Moriyama, Japan
- Average cloud cover in August: 46
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is May (Cloud cover 44).
Average visibility in August
Moriyama, Japan
- Average visibility in August: 8km
The months with the highest visibility are January, February, March, April, May, August and December (8km).
The months with the lowest visibility are June, July, September, October and November (7km).





