Contents
- Weather in July
- Frequently asked questions
- Average temperature in July
- Average pressure in July
- Average wind speed in July
- Average humidity in July
- Average rainfall in July
- Average rainfall days in July
- Average snowfall in July
- Average snowfall days in July
- Average daylight in July
- Average sunshine in July
- Average sunshine days in July
- Average UV index in July
- Average cloud cover in July
- Average visibility in July
July
Weather in July
Temperature
The onset of July introduces a subtle rise in the average high-temperature, nudging from a refreshing 18.6°C (65.5°F) in June to a pleasant 22.5°C (72.5°F). During July, the temperature tends to dip to an average of 14.9°C (58.8°F) at night.Humidity
The average relative humidity in July is 88%.Rainfall
In Iwanai, during July, the rain falls for 19 days and regularly aggregates up to 89mm (3.5") of precipitation. Throughout the year, there are 157.1 rainfall days, and 887mm (34.92") of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In Iwanai, the average length of the day in July is 15h and 0min.On the first day of the month, sunrise is at 04:02 and sunset at 19:20. On the last day of July, sunrise is at 04:28 and sunset at 19:00 JST.
Sunshine
In July, the average sunshine in Iwanai is 7.2h.UV index
The months with the highest UV index are July and August, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index of 5 in July converts into the following recommendations:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are July temperatures?
What is the average humidity in July?
How many days does it rain in July?
When it does not snow?
What is the average length of the day in July?
When are sunrise and sunset in July?
How many hours of sunshine does Iwanai have in July?
When is the highest UV index?
What is the UV index intensity in July?
Average temperature in July
Iwanai, Japan
- Average high temperature in July: 22.5°C
The warmest month (with the highest average high temperature) is August (23.3°C).
The month with the lowest average high temperature is January (-3.8°C).
- Average low temperature in July: 14.9°C
The month with the highest average low temperature is August (16.1°C).
The coldest month (with the lowest average low temperature) is February (-8.9°C).
Average pressure in July
Iwanai, Japan
- Average pressure in July: 1008.4mbar
The month with the highest atmospheric pressure is November (1016.4mbar).
The month with the lowest atmospheric pressure is July (1008.4mbar).
Average wind speed in July
Iwanai, Japan
- Average wind speed in July: 8.2km/h
The windiest month (with the highest average wind speed) is December (14.5km/h).
The calmest month (with the lowest average wind speed) is August (8km/h).
Average humidity in July
Iwanai, Japan
- Average humidity in July: 88%
The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is April (79%).
Average rainfall in July
Iwanai, Japan
- Average rainfall in July: 89mm
The wettest month (with the highest rainfall) is August (105mm).
The driest month (with the least rainfall) is April (52mm).
Average rainfall days in July
Iwanai, Japan
- Average rainfall days in July: 19 days
The month with the highest number of rainy days is August (19.1 days).
The month with the least rainy days is January (3.4 days).
Average snowfall in July
Iwanai, Japan
- Average snowfall in July: 0mm
The month with the highest snowfall is December (598mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in July
Iwanai, Japan
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (28.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in July /
Average sunshine in July
Iwanai, Japan
- Average daylight in July: 15h and 0min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in July: 7h and 1min
The months with the most sunshine are May and August (Average sunshine: 8h and 24min).
The month with the least sunshine is January (Average sunshine: 1h and 24min).
Average sunshine days in July
Iwanai, Japan
- Average sunshine days in July: 9 days
The month with the most sunshine days is May (13.3 days).
The month with the least sunshine days is January (2.7 days).
Average UV index in July
Iwanai, Japan
- Average UV index in July: 5
The months with the highest UV index are July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in July
Iwanai, Japan
- Average cloud cover in July: 60
The month with the most cloud cover is January (Cloud cover 86).
The month with the least cloud cover is September (Cloud cover 43).
Average visibility in July
Iwanai, Japan
- Average visibility in July: 7km
The months with the highest visibility are April, May and October (9km).
The months with the lowest visibility are January, February, July, August and December (7km).
