July weather forecastOnomichi, Japan
July weather for Onomichi, Japan: July, like June, in Onomichi, Japan, is a moderately hot summer month, with temperature in the range of an average low of 21.8°C (71.2°F) and an average high of 29°C (84.2°F). July is the month with the highest UV index in Onomichi, Japan, with an average maximum UV index of 7.
July
Weather in July
July, like June, in Onomichi, Japan, is a moderately hot summer month, with temperature in the range of an average low of 21.8°C (71.2°F) and an average high of 29°C (84.2°F).Temperature
Onomichi, Japan, in July experiences a slight uptick in the average high-temperature, adjusting from June's moderately hot 25.3°C (77.5°F) to a still warm 29°C (84.2°F). Throughout July, Onomichi registers a consistent average low-temperature of 21.8°C (71.2°F).Heat index
The heat index in July is appraised at a very hot 35°C (95°F). Adopt heightened safety measures, heat cramps and heat exhaustion may occur. Sustained activity might cause heatstroke.The heat index's values are generally associated with conditions in shade and light breezes. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. 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
The most humid month is July, with an average relative humidity of 82%.Rainfall
The month with the most rainfall is July, when the rain falls for 15.3 days and typically aggregates up to 69mm (2.72") of precipitation.Snowfall
In Onomichi, Japan, snow does not fall in March through November.Sea temperature
In July, the average sea temperature in Onomichi is 25.3°C (77.5°F).Note: For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.
Daylight
The average length of the day in July in Onomichi is 14h and 12min.On the first day of the month, sunrise is at 04:58 and sunset at 19:23. On the last day of July, sunrise is at 05:17 and sunset at 19:09 JST.
Sunshine
The average sunshine in July in Onomichi is 9.3h.UV index
July is the month with the highest UV index in Onomichi, Japan, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for average individuals.Note: A maximum daily UV index of 7 during July morphs into the following directions:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Attention! UV radiation is ramped up when reflecting off sand and water surfaces.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Onomichi, Japan
- Average high temperature in July: 29°C
The warmest month (with the highest average high temperature) is August (30.8°C).
The month with the lowest average high temperature is January (7.1°C).
- Average low temperature in July: 21.8°C
The month with the highest average low temperature is August (22.9°C).
The coldest month (with the lowest average low temperature) is January (1.3°C).
Average pressure in July
Onomichi, Japan
- Average pressure in July: 1008.7mbar
The month with the highest atmospheric pressure is January (1020.8mbar).
The month with the lowest atmospheric pressure is June (1008.4mbar).
Average wind speed in July
Onomichi, Japan
- Average wind speed in July: 7.4km/h
The windiest month (with the highest average wind speed) is January (10.5km/h).
The calmest month (with the lowest average wind speed) is June (6.9km/h).
Average humidity in July
Onomichi, Japan
- Average humidity in July: 82%
The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is May (71%).
Average rainfall in July
Onomichi, Japan
- Average rainfall in July: 69mm
The wettest month (with the highest rainfall) is July (69mm).
The driest month (with the least rainfall) is January (11mm).
Average rainfall days in July
Onomichi, Japan
- Average rainfall days in July: 15.3 days
The month with the highest number of rainy days is July (15.3 days).
The month with the least rainy days is January (6 days).
Average snowfall in July
Onomichi, Japan
- Average snowfall in July: 0mm
The month with the highest snowfall is January (6mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0mm).
Average snowfall days in July
Onomichi, Japan
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average sea temperature in July
Onomichi, Japan
- Average sea temperature in July: 25.3°C
The best month for swimming (with the highest average sea temperature) is August (27.2°C).
The coldest month (with the lowest average sea temperature) is February (13.7°C).
Average daylight in July /
Average sunshine in July
Onomichi, Japan
- Average daylight in July: 14h and 12min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in July: 9h and 18min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).
Average sunshine days in July
Onomichi, Japan
- Average sunshine days in July: 13.3 days
The month with the most sunshine days is May (21.6 days).
The month with the least sunshine days is July (13.3 days).
Average UV index in July
Onomichi, Japan
- Average UV index in July: 7
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in July
Onomichi, Japan
- Average cloud cover in July: 41
The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in July
Onomichi, Japan
- Average visibility in July: 9km
The month with the highest visibility is January (10km).
The months with the lowest visibility are February, March, April, May, June, July, August, September, October, November and December (9km).





