June weather forecastOtaru, Japan
June
Weather in June
June in Otaru, Japan, is a pleasant month steeped in characteristic early summer conditions. Relative humidity rises to 86%, up from 80% in May, reflecting the beginning of a humid season. An increase in rainfall confirms the shift towards summer, serving as a contrast to the growing daylight hours. Wind strength decreases, adding calmness to the warming weather. Despite the humidity, undeterred visitors will find an increased level of sunshine and warmer sea temperatures.Temperature
The start of June in Otaru signals a slight increase in the average high-temperature, moving from a mild 13.8°C (56.8°F) in May to an enjoyable 17.8°C (64°F). Otaru cools down to an average low-temperature of 10.7°C (51.3°F) throughout the month of June.Humidity
In June, the average relative humidity in Otaru is 86%.Rainfall
In Otaru, Japan, during June, the rain falls for 16.4 days and regularly aggregates up to 70mm (2.76") of precipitation. In Otaru, Japan, during the entire year, the rain falls for 151.8 days and collects up to 851mm (33.5") of precipitation.Snowfall
In Otaru, snow does not fall in June through September.Sea temperature
In June, the average sea temperature is 15°C (59°F).Note: Most people do not take pleasure in swimming in water at 15°C (59°F). The difficulty of managing breathing increases as the water temperature dips from 21°C (69.8°F) to 15°C (59°F).
Daylight
The month with the longest days in Otaru is June, with an average of 15h and 18min of daylight.On the first day of June, sunrise is at 03:58 and sunset at 19:09. On the last day of the month, sunrise is at 03:59 and sunset at 19:19 JST.
Sunshine
In Otaru, Japan, the average sunshine in June is 7.5h.UV index
June through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: The UV index of 5 in June translates into these instructions:
Exercise care. People with light skin might get burns in fewer than 30 minutes. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Otaru, Japan
- Average high temperature in June: 17.8°C
The warmest month (with the highest average high temperature) is August (23°C).
The month with the lowest average high temperature is January (-3.3°C).
- Average low temperature in June: 10.7°C
The month with the highest average low temperature is August (16.8°C).
The coldest month (with the lowest average low temperature) is February (-8.2°C).
Average pressure in June
Otaru, Japan
- Average pressure in June: 1008.8mbar
The month with the highest atmospheric pressure is November (1016.1mbar).
The month with the lowest atmospheric pressure is July (1008.5mbar).
Average wind speed in June
Otaru, Japan
- Average wind speed in June: 10.4km/h
The windiest month (with the highest average wind speed) is December (19km/h).
The calmest month (with the lowest average wind speed) is July (9.2km/h).
Average humidity in June
Otaru, Japan
- Average humidity in June: 86%
The month with the highest relative humidity is July (88%).
The months with the lowest relative humidity are April and October (79%).
Average rainfall in June
Otaru, Japan
- Average rainfall in June: 70mm
The wettest month (with the highest rainfall) is August (119mm).
The driest month (with the least rainfall) is April (43mm).
Average rainfall days in June
Otaru, Japan
- Average rainfall days in June: 16.4 days
The month with the highest number of rainy days is July (20.2 days).
The month with the least rainy days is February (2.5 days).
Average snowfall in June
Otaru, Japan
- Average snowfall in June: 0mm
The month with the highest snowfall is January (369mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in June
Otaru, Japan
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is January (26 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in June
Otaru, Japan
- Average sea temperature in June: 15°C
The best month for swimming (with the highest average sea temperature) is August (21.6°C).
The coldest months (with the lowest average sea temperature) are February and March (5.3°C).
Average daylight in June /
Average sunshine in June
Otaru, Japan
- Average daylight in June: 15h and 18min
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 June: 7h and 30min
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 12min).
Average sunshine days in June
Otaru, Japan
- Average sunshine days in June: 10.8 days
The month with the most sunshine days is May (14.8 days).
The month with the least sunshine days is January (3.1 days).
Average UV index in June
Otaru, Japan
- Average UV index in June: 5
The months with the highest UV index are June, 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 June
Otaru, Japan
- Average cloud cover in June: 54
The month with the most cloud cover is January (Cloud cover 89).
The month with the least cloud cover is September (Cloud cover 42).
Average visibility in June
Otaru, Japan
- Average visibility in June: 8km
The month with the highest visibility is October (10km).
The month with the lowest visibility is January (7km).





