Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
April
Weather in April
Temperature
The shift from March to April sees an increase in the average high-temperature, transitioning from a frosty 6.8°C (44.2°F) to a cool 12.9°C (55.2°F). During the nights in April, Koriyama experiences a consistent average temperature of 3.1°C (37.6°F).Humidity
The average relative humidity in April is 75%.Rainfall
In Koriyama, in April, during 14.9 rainfall days, 75mm (2.95") of precipitation is typically accumulated. Throughout the year, in Koriyama, there are 183.1 rainfall days, and 848mm (33.39") of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. April is the last month it regularly snows. During 2 snowfall days, in April, Koriyama aggregates 28mm (1.1") of snow. Throughout the year, in Koriyama, there are 56.8 snowfall days, and 576mm (22.68") of snow is accumulated.Daylight
In Koriyama, the average length of the day in April is 13h and 10min.On the first day of the month, sunrise is at 05:23 and sunset at 18:01. On the last day of April, sunrise is at 04:44 and sunset at 18:27 JST.
Sunshine
In April, the average sunshine is 9h.UV index
In April, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: An average maximum UV index of 4 in April leads to these recommendations:
Ensure safety - Recommendations to avert sunburn are presented. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Koriyama in April?
What is the average humidity in April in Koriyama?
How many days does it rain in April in Koriyama?
What is the last month it snows in Koriyama?
What is the average length of the day in April in Koriyama?
What time are sunrise and sunset in April in Koriyama?
How long on average sun shines in April in Koriyama?
How high is the UV index in April in Koriyama?
Average temperature in April
Koriyama, Japan
- Average high temperature in April: 12.9°C
The warmest month (with the highest average high temperature) is August (28.3°C).
The month with the lowest average high temperature is January (1°C).
- Average low temperature in April: 3.1°C
The month with the highest average low temperature is August (18.7°C).
The coldest month (with the lowest average low temperature) is January (-5.7°C).
Average pressure in April
Koriyama, Japan
- Average pressure in April: 1014.7mbar
The month with the highest atmospheric pressure is November (1018.8mbar).
The month with the lowest atmospheric pressure is June (1009.3mbar).
Average wind speed in April
Koriyama, Japan
- Average wind speed in April: 11.2km/h
The windiest month (with the highest average wind speed) is January (12.1km/h).
The calmest month (with the lowest average wind speed) is August (6.7km/h).
Average humidity in April
Koriyama, Japan
- Average humidity in April: 75%
The months with the highest relative humidity are January and February (85%).
The month with the lowest relative humidity is May (73%).
Average rainfall in April
Koriyama, Japan
- Average rainfall in April: 75mm
The wettest month (with the highest rainfall) is July (127mm).
The driest month (with the least rainfall) is February (33mm).
Average rainfall days in April
Koriyama, Japan
- Average rainfall days in April: 14.9 days
The month with the highest number of rainy days is July (24.1 days).
The month with the least rainy days is February (10.6 days).
Average snowfall in April
Koriyama, Japan
- Average snowfall in April: 28mm
The month with the highest snowfall is January (177mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in April
Koriyama, Japan
- Average snowfall days in April: 2 days
The month with the highest number of snowfall days is January (17.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in April /
Average sunshine in April
Koriyama, Japan
- Average daylight in April: 13h and 1min
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 36min).
- Average sunshine in April: 9h and 0min
The month with the most sunshine is May (Average sunshine: 9h and 30min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).
Average sunshine days in April
Koriyama, Japan
- Average sunshine days in April: 12.3 days
The month with the most sunshine days is November (14.8 days).
The month with the least sunshine days is July (4.6 days).
Average UV index in April
Koriyama, Japan
- Average UV index in April: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in April
Koriyama, Japan
- Average cloud cover in April: 41
The month with the most cloud cover is July (Cloud cover 54).
The month with the least cloud cover is May (Cloud cover 39).
Average visibility in April
Koriyama, Japan
- Average visibility in April: 9km
The months with the highest visibility are April and May (9km).
The months with the lowest visibility are July, August and September (7km).
