August weather forecastShimonumabe, Japan
August
Weather in August
August, the last month of the summer in Shimonumabe, is a tropical month, with an average temperature fluctuating between 25.1°C (77.2°F) and 31°C (87.8°F).Temperature
The temperatures reach their highest averages in August, with highs of 31°C (87.8°F) and lows of 25.1°C (77.2°F).Heat index
Throughout August, the heat index is calculated to be a very hot 39°C (102.2°F). Take extra safety measures to prevent heat exhaustion and heat cramps. Heatstroke could follow lengthy activity.Metrics for the heat index primarily focus on shaded spots and light wind conditions. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
Perspiring is the body's way of cooling down, particularly by allowing sweat to evaporate and take the heat with it. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. Rising body temperatures resulting from an imbalance in heat absorption can lead to potential thermal issues.
Humidity
In August, the average relative humidity is 73%.Rainfall
In Shimonumabe, during August, the rain falls for 9.7 days and regularly aggregates up to 26mm (1.02") of precipitation. Throughout the year, there are 134.5 rainfall days, and 425mm (16.73") of precipitation is accumulated.Snowfall
April through December are months without snowfall in Shimonumabe, Japan.Daylight
In August, the average length of the day is 13h and 29min.On the first day of August, sunrise is at 04:49 and sunset at 18:45. On the last day of the month, sunrise is at 05:12 and sunset at 18:10 JST.
Sunshine
August has the most sunshine of the year, with an average of 10.3h of sunshine.UV index
The average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The daily maximum UV index of 6 in August interprets into the following advice:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Shimonumabe, Japan
- Average high temperature in August: 31°C
The warmest month (with the highest average high temperature) is August (31°C).
The month with the lowest average high temperature is January (8.9°C).
- Average low temperature in August: 25.1°C
The month with the highest average low temperature is August (25.1°C).
The coldest month (with the lowest average low temperature) is January (2.8°C).
Average pressure in August
Shimonumabe, Japan
- Average pressure in August: 1010.2mbar
The month with the highest atmospheric pressure is November (1018.1mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).
Average wind speed in August
Shimonumabe, Japan
- Average wind speed in August: 12.5km/h
The windiest month (with the highest average wind speed) is April (15.3km/h).
The calmest month (with the lowest average wind speed) is November (12.1km/h).
Average humidity in August
Shimonumabe, Japan
- Average humidity in August: 73%
The month with the highest relative humidity is July (77%).
The month with the lowest relative humidity is January (59%).
Average rainfall in August
Shimonumabe, Japan
- Average rainfall in August: 26mm
The wettest month (with the highest rainfall) is October (51mm).
The driest month (with the least rainfall) is December (21mm).
Average rainfall days in August
Shimonumabe, Japan
- Average rainfall days in August: 9.7 days
The month with the highest number of rainy days is March (14.3 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in August
Shimonumabe, Japan
- Average snowfall in August: 0mm
The month with the highest snowfall is February (21mm).
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in August
Shimonumabe, Japan
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (2.3 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
Shimonumabe, 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 18min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 5h and 48min).
Average sunshine days in August
Shimonumabe, Japan
- Average sunshine days in August: 19.1 days
The month with the most sunshine days is January (21.8 days).
The month with the least sunshine days is June (14.4 days).
Average UV index in August
Shimonumabe, 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, March, November and December (UV index 3).
Average cloud cover in August
Shimonumabe, Japan
- Average cloud cover in August: 33
The months with the most cloud cover are June and October (Cloud cover 43).
The month with the least cloud cover is January (Cloud cover 28).
Average visibility in August
Shimonumabe, Japan
- Average visibility in August: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
