June weather forecastJoetsu, Japan
June
Weather in June
The first month of the summer, June, is a pleasant month in Joetsu, Japan, with temperature in the range of an average high of 22.3°C (72.1°F) and an average low of 14.6°C (58.3°F).Temperature
The beginning of June signals a minor rise in the average high-temperature, moving from an enjoyable 18.8°C (65.8°F) in May to an agreeable 22.3°C (72.1°F). Joetsu experiences an average low-temperature of 14.6°C (58.3°F) in month of June.Humidity
In June, the average relative humidity in Joetsu is 79%.Rainfall
In June, in Joetsu, the rain falls for 16 days. Throughout June, 79mm (3.11") of precipitation is accumulated. In Joetsu, during the entire year, the rain falls for 200.6 days and collects up to 1190mm (46.85") of precipitation.Snowfall
May through October are months without snowfall in Joetsu.Sea temperature
In Joetsu, the average seawater temperature in June is 20.1°C (68.2°F).Note: In water with a temperature of 20.1°C (68.2°F), most people do not enjoy swimming. As the temperature descends from 21°C (69.8°F) to 15°C (59°F), breathing becomes increasingly difficult to control.
Daylight
June has the longest days of the year, with an average of 14h and 42min of daylight.On the first day of the month, sunrise is at 04:28 and sunset at 19:01. On the last day of June, sunrise is at 04:30 and sunset at 19:11 JST.
Sunshine
In Joetsu, the average sunshine in June is 9.7h.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum high daily UV index of 6 during June translates into the following directions:
Guard oneself from overexposure. Defence against sun injury is vital. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Joetsu, Japan
- Average high temperature in June: 22.3°C
The warmest month (with the highest average high temperature) is August (27.8°C).
The month with the lowest average high temperature is January (2.8°C).
- Average low temperature in June: 14.6°C
The month with the highest average low temperature is August (20.9°C).
The coldest month (with the lowest average low temperature) is February (-1.9°C).
Average pressure in June
Joetsu, Japan
- Average pressure in June: 1009.2mbar
The month with the highest atmospheric pressure is November (1019.2mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).
Average wind speed in June
Joetsu, Japan
- Average wind speed in June: 8.4km/h
The windiest months (with the highest average wind speed) are January and December (15.4km/h).
The calmest months (with the lowest average wind speed) are July and August (7.7km/h).
Average humidity in June
Joetsu, Japan
- Average humidity in June: 79%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is May (74%).
Average rainfall in June
Joetsu, Japan
- Average rainfall in June: 79mm
The wettest month (with the highest rainfall) is July (142mm).
The driest month (with the least rainfall) is May (57mm).
Average rainfall days in June
Joetsu, Japan
- Average rainfall days in June: 16 days
The month with the highest number of rainy days is July (21.6 days).
The month with the least rainy days is February (10.3 days).
Average snowfall in June
Joetsu, Japan
- Average snowfall in June: 0mm
The month with the highest snowfall is January (466mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in June
Joetsu, Japan
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is January (17.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in June
Joetsu, Japan
- Average sea temperature in June: 20.1°C
The best month for swimming (with the highest average sea temperature) is August (27°C).
The coldest month (with the lowest average sea temperature) is March (10.3°C).
Average daylight in June /
Average sunshine in June
Joetsu, Japan
- Average daylight in June: 14h and 42min
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 June: 9h and 42min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 2h and 42min).
Average sunshine days in June
Joetsu, Japan
- Average sunshine days in June: 11.9 days
The month with the most sunshine days is May (15.1 days).
The month with the least sunshine days is January (4.3 days).
Average UV index in June
Joetsu, Japan
- Average UV index in June: 6
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in June
Joetsu, Japan
- Average cloud cover in June: 36
The month with the most cloud cover is January (Cloud cover 74).
The month with the least cloud cover is May (Cloud cover 35).
Average visibility in June
Joetsu, Japan
- Average visibility in June: 9km
The months with the highest visibility are October and November (10km).
The month with the lowest visibility is January (8km).





