April weather forecastOsaka, Japan
April
Weather in April
April ushers in a more pronounced spring feel in Osaka, characterized by much warmer temperatures, which can get as high as 19.9°C (67.8°F). The sea water starts becoming inviting, slowly heating up from March to April. Compared to previous months, humidity perception is fairly constant. A slight downtrend in monthly rainfall suggests a less wet surrounding, yet the number of rainy days remains almost unchanged. April's weather forms a smooth transition between the colder months at the start of the year and the subsequent warmer months.Temperature
Osaka in April experiences an increase in the average high-temperature, moving from March's moderate 13.7°C (56.7°F) to a comfortable 19.9°C (67.8°F). Osaka's average low-temperature for the month of April records at a cool 10.7°C (51.3°F).Humidity
March and April, with an average relative humidity of 59%, are the least humid months in Osaka.Rainfall
In April, in Osaka, the rain falls for 9.3 days. Throughout April, 104mm (4.09") of precipitation is accumulated. In Osaka, during the entire year, the rain falls for 98.1 days and collects up to 1279mm (50.35") of precipitation.Snowfall
March through December are months without snowfall in Osaka.Sea temperature
In April, the average sea temperature in Osaka is 15.6°C (60.1°F).Note: In water with a temperature of 15.6°C (60.1°F), most people do not enjoy swimming. As the temperature descends from 21°C (69.8°F) to 15°C (59°F), breathing becomes increasingly difficult to control.
Daylight
In April, the average length of the day in Osaka is 13h and 4min.On the first day of April in Osaka, sunrise is at 05:44 and sunset at 18:19. On the last day of the month, sunrise is at 05:08 and sunset at 18:42 JST.
Sunshine
In Osaka, the average sunshine in April is 6.3h.UV index
In Osaka, the average daily maximum UV index in April is 8. A UV Index reading of 8 to 10 represents a very high health vulnerability from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index of 8 in April interprets into the following recommendations:
Always use protective measures; unprotected skin might suffer damage in a short span. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Osaka, Japan
- Average high temperature in April: 19.9°C
The warmest month (with the highest average high temperature) is August (33.4°C).
The month with the lowest average high temperature is January (9.5°C).
- Average low temperature in April: 10.7°C
The month with the highest average low temperature is August (25.4°C).
The coldest month (with the lowest average low temperature) is January (2.8°C).
Average humidity in April
Osaka, Japan
- Average humidity in April: 59%
The month with the highest relative humidity is July (70%).
The months with the lowest relative humidity are March and April (59%).
Average rainfall in April
Osaka, Japan
- Average rainfall in April: 103.8mm
The wettest month (with the highest rainfall) is June (184.5mm).
The driest month (with the least rainfall) is December (43.8mm).
Average rainfall days in April
Osaka, Japan
- Average rainfall days in April: 9.3 days
The month with the highest number of rainy days is June (11.2 days).
The month with the least rainy days is December (5.5 days).
Average snowfall in April
Osaka, Japan
- Average snowfall in April: 0mm
The months with the highest snowfall are January and February (10mm).
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in April
Osaka, Japan
- Average snowfall days in April: 0 days
The month with the highest number of snowfall days is February (6.3 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average sea temperature in April
Osaka, Japan
- Average sea temperature in April: 15.6°C
The best month for swimming (with the highest average sea temperature) is August (27.7°C).
The coldest months (with the lowest average sea temperature) are February and March (13.9°C).
Average daylight in April /
Average sunshine in April
Osaka, Japan
- Average daylight in April: 13h and 6min
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: 6h and 18min
The month with the most sunshine is August (Average sunshine: 7h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average UV index in April
Osaka, Japan
- Average UV index in April: 8
The month with the highest UV index is July (UV index 11).
The month with the lowest UV index is December (UV index 2).
