April weather forecast
Iwakuni, Japan

April

Weather in April

April is an enjoyable spring month in Iwakuni, Japan, with an average temperature fluctuating between 9.2°C (48.6°F) and 16.2°C (61.2°F).

Temperature

In April, the average high-temperature marginally rises from a cool 11.9°C (53.4°F) in March to a comfortable 16.2°C (61.2°F). The nights of April in Iwakuni anticipate an average low-temperature of 9.2°C (48.6°F).

Humidity

The average relative humidity in April in Iwakuni is 74%.

Rainfall

In Iwakuni, in April, during 11.7 rainfall days, 52mm (2.05") of precipitation is typically accumulated. In Iwakuni, during the entire year, the rain falls for 161.2 days and collects up to 650mm (25.59") of precipitation.

Snowfall

In Iwakuni, snow does not fall in April through November.

Daylight

In Iwakuni, the average length of the day in April is 13h and 2min.
On the first day of the month, sunrise is at 05:58 and sunset at 18:31. On the last day of April, in Iwakuni, sunrise is at 05:22 and sunset at 18:54 JST.

Sunshine

The average sunshine in April in Iwakuni is 9.2h.

UV index

The average daily maximum UV index in April in Iwakuni is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The daily high UV index of 4 during April translates into the following recommendations:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.

Frequently asked questions

What is the average April temperature in Iwakuni?
The high-temperature, in April, in Iwakuni, is 16.2°C (61.2°F), while the low-temperature averages to 9.2°C (48.6°F).
What is the average humidity in April in Iwakuni?
The average relative humidity in April is 74%.
How much does it rain in Iwakuni in April?
In April, in Iwakuni, the rain falls for 11.7 days. Throughout April, 52mm (2.05") of precipitation is accumulated.
When it does not snow in Iwakuni?
In Iwakuni, Japan, snow does not fall in April through November.
Does it snow in Iwakuni in April?
In April, it doesn't snow. March is the latest month when it typically snows.
What is the average length of the day in April in Iwakuni?
In April, the average day length is 13h and 2min.
When are sunrise and sunset in April in Iwakuni?
In April, on the first day of the month, sunrise is at 05:58 and sunset at 18:31. On the last day of the month, in Iwakuni, sunrise is at 05:22 and sunset at 18:54 JST.
How many hours of sunshine does Iwakuni have in April?
In Iwakuni, the average sunshine duration in April is 9.2h.
How high is the UV index in April in Iwakuni?
In Iwakuni, the average daily maximum UV index in April is 4. A UV Index reading of 3 to 5 represents a medium hazard to health from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in April
Iwakuni, Japan
  • Average high temperature in April: 16.2°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 April: 9.2°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 April
Iwakuni, Japan
  • Average pressure in April: 1015.2mbar

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 April
Iwakuni, Japan
  • Average wind speed in April: 9.4km/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 April
Iwakuni, Japan
  • Average humidity in April: 74%

The month with the highest relative humidity is July (86%).
The month with the lowest relative humidity is March (73%).

Average rainfall in April
Iwakuni, Japan
  • Average rainfall in April: 52mm

The wettest month (with the highest rainfall) is July (137mm).
The driest month (with the least rainfall) is November (24mm).

Average rainfall days in April
Iwakuni, Japan
  • Average rainfall days in April: 11.7 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 April
Iwakuni, Japan
  • Average snowfall in April: 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 April
Iwakuni, Japan
  • Average snowfall days in April: 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 April /
Average sunshine in April
Iwakuni, Japan
  • Average daylight in April: 13h and 0min

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 April: 9h and 1min

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 April
Iwakuni, Japan
  • Average sunshine days in April: 16 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 April
Iwakuni, Japan
  • Average UV index in April: 4

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 April
Iwakuni, Japan
  • Average cloud cover in April: 36

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 April
Iwakuni, Japan
  • Average visibility in April: 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).

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