April weather forecastIwai, Japan
April
Weather in April
April is a comfortable spring month in Iwai, Japan, with an average temperature varying between 9.8°C (49.6°F) and 18.2°C (64.8°F).Temperature
With the onset of April, Iwai's average high-temperature experiences a slight rise, moving from March's mild 13.3°C (55.9°F) to an enjoyable 18.2°C (64.8°F). Throughout April, the temperature tends to fall to a consistent average low of 9.8°C (49.6°F).Humidity
In April, the average relative humidity in Iwai is 67%.Rainfall
In Iwai, in April, it is raining for 14.9 days, with typically 82mm (3.23") of accumulated precipitation. Throughout the year, in Iwai, there are 161.3 rainfall days, and 876mm (34.49") of precipitation is accumulated.Snowfall
April through December are months without snowfall.Daylight
In Iwai, the average length of the day in April is 13h and 7min.On the first day of April, sunrise is at 05:26 and sunset at 18:02. On the last day of the month, sunrise is at 04:48 and sunset at 18:26 JST.
Sunshine
In Iwai, the average sunshine in April is 8.7h.UV index
The average daily maximum UV index in April is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: An average maximum UV index of 5 in April leads to these recommendations:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. 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 April
Iwai, Japan
- Average high temperature in April: 18.2°C
The warmest month (with the highest average high temperature) is August (31.9°C).
The month with the lowest average high temperature is January (8.3°C).
- Average low temperature in April: 9.8°C
The month with the highest average low temperature is August (24.4°C).
The coldest month (with the lowest average low temperature) is January (1.7°C).
Average pressure in April
Iwai, Japan
- Average pressure in April: 1014.3mbar
The month with the highest atmospheric pressure is November (1018.2mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).
Average wind speed in April
Iwai, Japan
- Average wind speed in April: 12.3km/h
The windiest month (with the highest average wind speed) is April (12.3km/h).
The calmest month (with the lowest average wind speed) is November (9.1km/h).
Average humidity in April
Iwai, Japan
- Average humidity in April: 67%
The months with the highest relative humidity are June and July (76%).
The month with the lowest relative humidity is January (60%).
Average rainfall in April
Iwai, Japan
- Average rainfall in April: 82mm
The wettest month (with the highest rainfall) is October (122mm).
The driest month (with the least rainfall) is December (31mm).
Average rainfall days in April
Iwai, Japan
- Average rainfall days in April: 14.9 days
The month with the highest number of rainy days is July (18.7 days).
The month with the least rainy days is January (6.3 days).
Average snowfall in April
Iwai, Japan
- Average snowfall in April: 0mm
The month with the highest snowfall is February (36mm).
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in April
Iwai, Japan
- Average snowfall days in April: 0 days
The month with the highest number of snowfall days is February (2 days).
The months with the least snowfall days are April, May, June, July, August, September, October, November and December (0 days).
Average daylight in April /
Average sunshine in April
Iwai, Japan
- Average daylight in April: 13h and 6min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in April: 8h and 42min
The month with the most sunshine is August (Average sunshine: 9h and 42min).
The month with the least sunshine is February (Average sunshine: 5h and 42min).
Average sunshine days in April
Iwai, Japan
- Average sunshine days in April: 13.5 days
The month with the most sunshine days is January (23.3 days).
The month with the least sunshine days is June (9.7 days).
Average UV index in April
Iwai, Japan
- Average UV index in April: 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 April
Iwai, Japan
- Average cloud cover in April: 42
The month with the most cloud cover is June (Cloud cover 49).
The month with the least cloud cover is January (Cloud cover 29).
Average visibility in April
Iwai, Japan
- Average visibility in April: 9km
The months with the highest visibility are January, February, March, November and December (10km).
The months with the lowest visibility are April, May, June, July, August, September and October (9km).
