August weather forecastOnahama, Japan
August
Weather in August
August, the last month of the summer in Onahama, is another warm month, with an average temperature fluctuating between 27.2°C (81°F) and 22.7°C (72.9°F).Temperature
August, marked by an average high-temperature of 27.2°C (81°F) and a low-temperature of 22.7°C (72.9°F), is the warmest month.Heat index
The heat index value during August is calculated to be a tropical 31°C (87.8°F). When exposure and activity are sustained, they could induce fatigue, with a chance of heat cramps.Be informed that the heat index values are oriented around shady conditions and gentle breezes. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a metric representing the sensation of warmth when air temperature and moisture come together. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. 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.
Humidity
In August, the average relative humidity is 83%.Rainfall
In Onahama, Japan, in August, during 16.1 rainfall days, 62mm (2.44") of precipitation is typically accumulated. In Onahama, during the entire year, the rain falls for 149.2 days and collects up to 755mm (29.72") of precipitation.Snowfall
In Onahama, snow does not fall in April through October and December.Daylight
The average length of the day in August is 13h and 33min.On the first day of August, sunrise is at 04:41 and sunset at 18:43. On the last day of the month, sunrise is at 05:06 and sunset at 18:06 JST.
Sunshine
August has the most sunshine of the year, with an average of 9.8h of sunshine.UV index
The months with the highest UV index are July and August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the ordinary person.Note: In August, the maximum UV index of 6 suggests these recommendations:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Onahama, Japan
- Average high temperature in August: 27.2°C
The warmest month (with the highest average high temperature) is August (27.2°C).
The month with the lowest average high temperature is January (6.7°C).
- Average low temperature in August: 22.7°C
The month with the highest average low temperature is August (22.7°C).
The coldest month (with the lowest average low temperature) is January (1.3°C).
Average pressure in August
Onahama, Japan
- Average pressure in August: 1010.2mbar
The month with the highest atmospheric pressure is November (1018.4mbar).
The month with the lowest atmospheric pressure is June (1009.4mbar).
Average wind speed in August
Onahama, Japan
- Average wind speed in August: 11.9km/h
The windiest month (with the highest average wind speed) is January (19.8km/h).
The calmest month (with the lowest average wind speed) is July (11.6km/h).
Average humidity in August
Onahama, 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 (65%).
Average rainfall in August
Onahama, Japan
- Average rainfall in August: 62mm
The wettest month (with the highest rainfall) is October (105mm).
The driest month (with the least rainfall) is January (27mm).
Average rainfall days in August
Onahama, Japan
- Average rainfall days in August: 16.1 days
The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is January (5.5 days).
Average snowfall in August
Onahama, Japan
- Average snowfall in August: 0mm
The month with the highest snowfall is February (20mm).
The months with the least snowfall are April, May, June, July, August, September, October and December (0mm).
Average snowfall days in August
Onahama, Japan
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (2.2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in August /
Average sunshine in August
Onahama, Japan
- Average daylight in August: 13h and 36min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in August: 9h and 48min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is November (Average sunshine: 5h and 42min).
Average sunshine days in August
Onahama, Japan
- Average sunshine days in August: 11 days
The month with the most sunshine days is January (24.4 days).
The month with the least sunshine days is July (9.8 days).
Average UV index in August
Onahama, Japan
- Average UV index in August: 6
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January and February (UV index 2).
Average cloud cover in August
Onahama, Japan
- Average cloud cover in August: 40
The month with the most cloud cover is July (Cloud cover 47).
The month with the least cloud cover is January (Cloud cover 32).
Average visibility in August
Onahama, Japan
- Average visibility in August: 9km
The months with the highest visibility are January, February, March, April, September, October, November and December (10km).
The months with the lowest visibility are May, June, July and August (9km).
