August weather forecastIsumi, Japan
August
Weather in August
The last month of the summer, August, is another warm month in Isumi, Japan, with an average temperature varying between 28.3°C (82.9°F) and 25.6°C (78.1°F).Temperature
Isumi's temperatures tend to reach their peak averages in August, with a high of 28.3°C (82.9°F) and a low of 25.6°C (78.1°F).Heat index
In August, the heat index is computed to be a tropical 33°C (91.4°F). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is the result of factoring in humidity to the air temperature, indicating perceived warmth. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
Humidity
In Isumi, the average relative humidity in August is 83%.Rainfall
In Isumi, during August, the rain falls for 14.5 days and regularly aggregates up to 69mm (2.72") of precipitation. In Isumi, Japan, during the entire year, the rain falls for 178.9 days and collects up to 1201mm (47.28") of precipitation.Snowfall
March through December are months without snowfall in Isumi.Daylight
In Isumi, the average length of the day in August is 13h and 28min.On the first day of the month, sunrise is at 04:47 and sunset at 18:42. On the last day of August, in Isumi, sunrise is at 05:10 and sunset at 18:07 JST.
Sunshine
August has the most sunshine of the year, with an average of 10.6h of sunshine.UV index
June through September, with an average maximum UV index of 6, are months with the highest UV index in Isumi. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum daily UV index of 6 during August morphs into the following directions:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Isumi, Japan
- Average high temperature in August: 28.3°C
The warmest month (with the highest average high temperature) is August (28.3°C).
The month with the lowest average high temperature is January (10.6°C).
- Average low temperature in August: 25.6°C
The month with the highest average low temperature is August (25.6°C).
The coldest month (with the lowest average low temperature) is January (7°C).
Average pressure in August
Isumi, Japan
- Average pressure in August: 1009.9mbar
The month with the highest atmospheric pressure is November (1017.6mbar).
The month with the lowest atmospheric pressure is June (1009.1mbar).
Average wind speed in August
Isumi, Japan
- Average wind speed in August: 18.9km/h
The windiest month (with the highest average wind speed) is March (25.5km/h).
The calmest month (with the lowest average wind speed) is June (18.7km/h).
Average humidity in August
Isumi, Japan
- Average humidity in August: 83%
The month with the highest relative humidity is July (86%).
The month with the lowest relative humidity is January (63%).
Average rainfall in August
Isumi, Japan
- Average rainfall in August: 69mm
The wettest month (with the highest rainfall) is October (164mm).
The driest month (with the least rainfall) is January (58mm).
Average rainfall days in August
Isumi, Japan
- Average rainfall days in August: 14.5 days
The month with the highest number of rainy days is October (18.5 days).
The month with the least rainy days is January (9.6 days).
Average snowfall days in August
Isumi, Japan
- Average snowfall days in August: 0 days
The months with the highest number of snowfall days are January and February (0.1 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in August /
Average sunshine in August
Isumi, 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 36min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in August
Isumi, Japan
- Average sunshine days in August: 14.7 days
The month with the most sunshine days is January (19.9 days).
The month with the least sunshine days is October (10.2 days).
Average UV index in August
Isumi, Japan
- Average UV index in August: 6
The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are January and February (UV index 3).
Average cloud cover in August
Isumi, Japan
- Average cloud cover in August: 32
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in August
Isumi, 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).
