June weather forecast
Kosai, Japan

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Weather in June

The first month of the summer, June, is a warm month in Kosai, Japan, with an average temperature varying between 23.7°C (74.7°F) and 19.1°C (66.4°F).

Temperature

The onset of June notes an average high-temperature of a warm 23.7°C (74.7°F), subtly shifted from May's 20.9°C (69.6°F). In Kosai, June nights experience a modest descent in temperature from daily peaks, cooling down to an average of 19.1°C (66.4°F).

Humidity

The average relative humidity in June is 80%.

Rainfall

In Kosai, during June, the rain falls for 16.9 days and regularly aggregates up to 124mm (4.88") of precipitation. In Kosai, during the entire year, the rain falls for 163.7 days and collects up to 1017mm (40.04") of precipitation.

Snowfall

In Kosai, snow does not fall in March through November.

Sea temperature

In June, the average sea temperature is 21.9°C (71.4°F).
Note: For most individuals, swimming in 21.9°C (71.4°F) is not a pleasant experience. The difficulty in managing breathing increases as the temperature decreases from 21°C (69.8°F) to 15°C (59°F).

Daylight

The month with the longest days is June, with an average of 14h and 24min of daylight.
On the first day of June, sunrise is at 04:37 and sunset at 18:57. On the last day of the month, sunrise is at 04:39 and sunset at 19:07 JST.

Sunshine

In Kosai, the average sunshine in June is 8.9h.

UV index

The average daily maximum UV index in June is 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for average individuals.
Note: A maximum UV index of 6 in June translates into the following recommendations:
Guard against overexposure. Protection from sun-induced harm is essential. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Be alert! The reflection of water and sand augments UV radiation intensity.

Frequently asked questions

What are the temperatures in June?

In Kosai, in June, the average high-temperature is 23.7°C (74.7°F), and the average low-temperature is 19.1°C (66.4°F).

What is the average humidity in June?

In June, the average relative humidity is 80%.

How much does it rain in June?

In Kosai, during June, the rain falls for 16.9 days and regularly aggregates up to 124mm (4.88") of precipitation.

When it does not snow?

March through November are months without snowfall.

How cold is the water in June?

In June, the average sea temperature is 21.9°C (71.4°F). For most, swimming in 21.9°C (71.4°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).

When are the longest days?

With an average of 14h and 24min of daylight, June has the longest days of the year.

What is the average length of the day in June?

In Kosai, the average day length in June is 14h and 27min.

When is the sunrise / sunset in June?

In June, on the first day of the month, sunrise is at 04:37 and sunset at 18:57. On the last day of the month, sunrise is at 04:39 and sunset at 19:07 JST.

How long on average sun shines in June?

In Kosai, the average sunshine duration in June is 8.9h.

How high is the UV index in June?

In Kosai, the average daily maximum UV index in June is 6. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover

Average temperature in June
Kosai, Japan

Average temperature in June - Kosai, Japan
  • Average high temperature in June: 23.7°C

The warmest month (with the highest average high temperature) is August (29.1°C).
The month with the lowest average high temperature is January (8.4°C).

  • Average low temperature in June: 19.1°C

The month with the highest average low temperature is August (24.8°C).
The coldest month (with the lowest average low temperature) is January (3.5°C).

Average pressure in June
Kosai, Japan

Average pressure in June - Kosai, Japan
  • Average pressure in June: 1009.1mbar

The month with the highest atmospheric pressure is November (1018.7mbar).
The month with the lowest atmospheric pressure is June (1009.1mbar).

Average wind speed in June
Kosai, Japan

Average wind speed in June - Kosai, Japan
  • Average wind speed in June: 13.3km/h

The windiest month (with the highest average wind speed) is January (24.2km/h).
The calmest months (with the lowest average wind speed) are July and August (12.8km/h).

Average humidity in June
Kosai, Japan

Average humidity in June - Kosai, Japan
  • Average humidity in June: 80%

The month with the highest relative humidity is July (83%).
The months with the lowest relative humidity are January and February (67%).

Average rainfall in June
Kosai, Japan

Average rainfall in June - Kosai, Japan
  • Average rainfall in June: 124mm

The wettest month (with the highest rainfall) is July (190mm).
The driest month (with the least rainfall) is January (27mm).

Average rainfall days in June
Kosai, Japan

Average rainfall days in June - Kosai, Japan
  • Average rainfall days in June: 16.9 days

The month with the highest number of rainy days is July (20.6 days).
The month with the least rainy days is January (7.5 days).

Average snowfall in June
Kosai, Japan

Average snowfall in June - Kosai, Japan
  • Average snowfall in June: 0mm

The month with the highest snowfall is February (2mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0mm).

Average snowfall days in June
Kosai, Japan

Average snowfall days in June - Kosai, Japan
  • Average snowfall days in June: 0 days

The month with the highest number of snowfall days is February (0.9 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

Average sea temperature in June
Kosai, Japan

Average sea temperature in June - Kosai, Japan
  • Average sea temperature in June: 21.9°C

The best month for swimming (with the highest average sea temperature) is August (26.8°C).
The coldest month (with the lowest average sea temperature) is March (15.1°C).

Average daylight in June /
Average sunshine in June
Kosai, Japan

Average daylight in June / Average sunshine in June - Kosai, Japan
  • Average daylight in June: 14h and 2min

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 5min

The month with the most sunshine is August (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 54min).

Average sunshine days in June
Kosai, Japan

Average sunshine days in June - Kosai, Japan
  • Average sunshine days in June: 11.6 days

The month with the most sunshine days is January (19.9 days).
The month with the least sunshine days is July (8.7 days).

Average UV index in June
Kosai, Japan

Average UV index in June - Kosai, Japan
  • Average UV index in June: 6

The months with the highest UV index are July and August (UV index 7).
The month with the lowest UV index is January (UV index 2).

Average cloud cover in June
Kosai, Japan

Average cloud cover in June - Kosai, Japan
  • Average cloud cover in June: 43

The month with the most cloud cover is June (Cloud cover 43).
The month with the least cloud cover is January (Cloud cover 28).

Average visibility in June
Kosai, Japan

Average visibility in June - Kosai, Japan
  • Average visibility in June: 10km

The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (10km).
The month with the lowest visibility is July (9km).

Kosai, Japan

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