June weather forecastIwakuni, Japan
June
Weather in June
The first month of the summer, June, is a warm month in Iwakuni, Japan, with an average temperature fluctuating between 17.8°C (64°F) and 23.6°C (74.5°F).Temperature
Transitioning into June, Iwakuni records an average high-temperature of a warm 23.6°C (74.5°F), almost identical to May's 20.9°C (69.6°F). Nighttime temperature in Iwakuni, Japan, experiences an average drop to an enjoyable 17.8°C (64°F) in June.Humidity
The average relative humidity in June in Iwakuni, Japan, is 83%.Rainfall
In Iwakuni, in June, it is raining for 16.4 days, with typically 84mm (3.31") of accumulated precipitation. Throughout the year, there are 161.2 rainfall days, and 650mm (25.59") of precipitation is accumulated.Snowfall
April through November are months without snowfall in Iwakuni.Daylight
With an average of 14h and 24min of daylight, June has the longest days of the year in Iwakuni, Japan.On the first day of June, sunrise is at 05:00 and sunset at 19:17. On the last day of the month, sunrise is at 05:02 and sunset at 19:26 JST.
Sunshine
In June, the average sunshine is 8.8h.UV index
In Iwakuni, the average daily maximum UV index in June is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index of 5 in June interprets into the following recommendations:
Adopt protective measures - Suggestions to resist sunburn are offered. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Boost your sun resistance with garments that are densely woven yet spacious.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Iwakuni, Japan
- Average high temperature in June: 23.6°C
The warmest month (with the highest average high temperature) is August (29.2°C).
The month with the lowest average high temperature is January (7.6°C).
- Average low temperature in June: 17.8°C
The month with the highest average low temperature is August (23.4°C).
The coldest month (with the lowest average low temperature) is January (2.8°C).
Average pressure in June
Iwakuni, Japan
- Average pressure in June: 1008.4mbar
The month with the highest atmospheric pressure is January (1021.2mbar).
The month with the lowest atmospheric pressure is June (1008.4mbar).
Average wind speed in June
Iwakuni, Japan
- Average wind speed in June: 6.7km/h
The windiest month (with the highest average wind speed) is January (11.8km/h).
The calmest month (with the lowest average wind speed) is June (6.7km/h).
Average humidity in June
Iwakuni, Japan
- Average humidity in June: 83%
The month with the highest relative humidity is July (86%).
The month with the lowest relative humidity is March (73%).
Average rainfall in June
Iwakuni, Japan
- Average rainfall in June: 84mm
The wettest month (with the highest rainfall) is July (137mm).
The driest month (with the least rainfall) is November (24mm).
Average rainfall days in June
Iwakuni, Japan
- Average rainfall days in June: 16.4 days
The month with the highest number of rainy days is July (20 days).
The month with the least rainy days is October (9.7 days).
Average snowfall in June
Iwakuni, Japan
- Average snowfall in June: 0mm
The month with the highest snowfall is January (13mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in June
Iwakuni, Japan
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is January (4.8 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in June /
Average sunshine in June
Iwakuni, Japan
- Average daylight in June: 14h and 24min
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 June: 8h and 48min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).
Average sunshine days in June
Iwakuni, Japan
- Average sunshine days in June: 11.8 days
The month with the most sunshine days is May (19 days).
The month with the least sunshine days is July (8.8 days).
Average UV index in June
Iwakuni, Japan
- Average UV index in June: 5
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in June
Iwakuni, Japan
- Average cloud cover in June: 43
The months with the most cloud cover are January and June (Cloud cover 43).
The months with the least cloud cover are August and October (Cloud cover 31).
Average visibility in June
Iwakuni, Japan
- Average visibility in June: 9km
The months with the highest visibility are January, February, March, September, October, November and December (10km).
The month with the lowest visibility is July (8km).





