August weather forecastShimoigusa, Japan
August
Weather in August
August, the last month of the summer in Shimoigusa, is a hot month, with temperature in the range of an average low of 25.1°C (77.2°F) and an average high of 31°C (87.8°F).Temperature
The average temperatures reach their apex in August, averaging 31°C (87.8°F) at the high end and 25.1°C (77.2°F) at the low end.Heat index
In August, the average heat index is evaluated at a very hot 39°C (102.2°F). Adopt extra safety steps, risk of heat exhaustion and heat cramps is notable. Sustained activity might cause heatstroke.Note that heat index values are valued for light wind and location in the shade. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are highly critical to babies and toddlers. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.
Humidity
In Shimoigusa, Japan, the average relative humidity in August is 73%.Rainfall
In Shimoigusa, in August, during 9.7 rainfall days, 26mm (1.02") of precipitation is typically accumulated. Throughout the year, in Shimoigusa, there are 135.3 rainfall days, and 433mm (17.05") of precipitation is accumulated.Snowfall
In Shimoigusa, Japan, snow does not fall in April through December.Daylight
In Shimoigusa, the average length of the day in August is 13h and 29min.On the first day of the month, sunrise is at 04:49 and sunset at 18:46. On the last day of August, in Shimoigusa, sunrise is at 05:12 and sunset at 18:10 JST.
Sunshine
The month with the most sunshine is August, with an average of 10.3h of sunshine.UV index
The average daily maximum UV index in August in Shimoigusa is 6. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 6 during August translates into the following directions:
Guard against overexposure. Protection from sun-induced harm is essential. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Shimoigusa, 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
Shimoigusa, 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
Shimoigusa, 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
Shimoigusa, 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
Shimoigusa, Japan
- Average rainfall in August: 26mm
The wettest month (with the highest rainfall) is September (54mm).
The driest month (with the least rainfall) is December (21mm).
Average rainfall days in August
Shimoigusa, 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
Shimoigusa, 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
Shimoigusa, 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
Shimoigusa, 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
Shimoigusa, 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 September (14.3 days).
Average UV index in August
Shimoigusa, 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
Shimoigusa, 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
Shimoigusa, 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).





