August weather forecastYoshikawa, Japan
August
Weather in August
The last month of the summer, August, is also a hot month in Yoshikawa, Japan, with an average temperature ranging between max 31.9°C (89.4°F) and min 24.6°C (76.3°F).Temperature
August, recording an average high temperature of 31.9°C (89.4°F) and a low temperature of 24.6°C (76.3°F), is Yoshikawa's warmest month.Heat index
During August, the heat index is calculated to be an extremely hot 41°C (105.8°F). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.The metrics for the heat index are tailored for both shady environments and light winds. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
Perspiration is the body's default response to elevated temperatures, as it promotes the evaporation of sweat to achieve cooling. Greater relative humidity lessens the rate of evaporation, thus decreasing the body's heat dispersal, which gives rise to a sensation of overheating. Rising body temperatures due to excess heat retention could signify impending heat disorders.
Humidity
In August, the average relative humidity is 73%.Rainfall
In Yoshikawa, during August, the rain falls for 17.8 days and regularly aggregates up to 77mm (3.03") of precipitation. In Yoshikawa, during the entire year, the rain falls for 167.3 days and collects up to 870mm (34.25") of precipitation.Snowfall
In Yoshikawa, Japan, snow does not fall in April through December.Daylight
The average length of the day in August is 13h and 30min.On the first day of the month, sunrise is at 04:48 and sunset at 18:45. On the last day of August, sunrise is at 05:11 and sunset at 18:09 JST.
Sunshine
August has the most sunshine of the year, with an average of 10h of sunshine.UV index
In August, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In August, a daily maximum UV index of 6 leads to the following instructions:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Yoshikawa, Japan
- Average high temperature in August: 31.9°C
The warmest month (with the highest average high temperature) is August (31.9°C).
The month with the lowest average high temperature is January (8.4°C).
- Average low temperature in August: 24.6°C
The month with the highest average low temperature is August (24.6°C).
The coldest month (with the lowest average low temperature) is January (1.8°C).
Average pressure in August
Yoshikawa, Japan
- Average pressure in August: 1010.3mbar
The month with the highest atmospheric pressure is November (1018.2mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).
Average wind speed in August
Yoshikawa, Japan
- Average wind speed in August: 10.2km/h
The windiest month (with the highest average wind speed) is April (12.6km/h).
The calmest month (with the lowest average wind speed) is November (9.5km/h).
Average humidity in August
Yoshikawa, Japan
- Average humidity in August: 73%
The month with the highest relative humidity is July (76%).
The month with the lowest relative humidity is January (59%).
Average rainfall in August
Yoshikawa, Japan
- Average rainfall in August: 77mm
The wettest month (with the highest rainfall) is October (121mm).
The driest month (with the least rainfall) is December (33mm).
Average rainfall days in August
Yoshikawa, Japan
- Average rainfall days in August: 17.8 days
The month with the highest number of rainy days is July (19.6 days).
The month with the least rainy days is January (7.2 days).
Average snowfall in August
Yoshikawa, Japan
- Average snowfall in August: 0mm
The month with the highest snowfall is February (30mm).
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in August
Yoshikawa, Japan
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (2.4 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
Yoshikawa, 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 48min).
- Average sunshine in August: 10h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 5h and 48min).
Average sunshine days in August
Yoshikawa, Japan
- Average sunshine days in August: 10.6 days
The month with the most sunshine days is January (22.1 days).
The months with the least sunshine days are June and July (9.2 days).
Average UV index in August
Yoshikawa, 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
Yoshikawa, Japan
- Average cloud cover in August: 37
The month with the most cloud cover is June (Cloud cover 46).
The month with the least cloud cover is January (Cloud cover 27).
Average visibility in August
Yoshikawa, Japan
- Average visibility in August: 9km
The months with the highest visibility are January, February, March, November and December (10km).
The months with the lowest visibility are April, May, June, July, August, September and October (9km).





