April weather forecastTokyo, Japan

April
Weather in April
Continuing the graceful transition from spring, April brings in warmer weather in Tokyo. Compared to March, the city records a decrease in rainfall, making the waning spring a delightful experience. Mild temperatures enhance outdoor activities, while the charming spring flora continues to bloom. Moreover, increased daylight hours hint at the approaching summer. April becomes the harbinger of longer, warmer days, steering Tokyo gradually from spring to summer.Temperature
The transition from March to April in Tokyo brings a subtle temperature rise, with average high-temperatures increasing from a refreshing 13°C (55.4°F) to a comfortable 17.6°C (63.7°F). Tokyo records a mean low-temperature of 10.6°C (51.1°F) in April.Humidity
In April, the average relative humidity is 67%.Rainfall
In Tokyo, in April, during 12.8 rainfall days, 39mm (1.54") of precipitation is typically accumulated. In Tokyo, during the entire year, the rain falls for 134.5 days and collects up to 425mm (16.73") of precipitation.Snowfall
In Tokyo, snow does not fall in April through December.Sea temperature
In April, the average sea temperature in Tokyo, Japan, is 15.8°C (60.4°F).Note: Most people do not find swimming enjoyable in water of 15.8°C (60.4°F). The task of controlling breathing becomes tougher as the temperature drops from 21°C (69.8°F) to 15°C (59°F).
Daylight
In April, the average length of the day is 13h and 6min.On the first day of the month, sunrise is at 05:27 and sunset at 18:02. On the last day of April, in Tokyo, sunrise is at 04:49 and sunset at 18:26 JST.
Sunshine
The average sunshine in April is 9h.UV index
In Tokyo, the average daily maximum UV index in April is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.Note: An average UV index of 5 in April transforms into this advice:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Tokyo, Japan
- Average high temperature in April: 17.6°C
The warmest month (with the highest average high temperature) is August (31°C).
The month with the lowest average high temperature is January (8.9°C).
- Average low temperature in April: 10.6°C
The month with the highest average low temperature is August (25.1°C).
The coldest month (with the lowest average low temperature) is January (2.8°C).
Average pressure in April
Tokyo, Japan
- Average pressure in April: 1014.2mbar
The month with the highest atmospheric pressure is November (1018.1mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).
Average wind speed in April
Tokyo, Japan
- Average wind speed in April: 15.3km/h
The windiest month (with the highest average wind speed) is April (15.3km/h).
The calmest month (with the lowest average wind speed) is November (12.1km/h).
Average humidity in April
Tokyo, Japan
- Average humidity in April: 67%
The month with the highest relative humidity is July (77%).
The month with the lowest relative humidity is January (59%).
Average rainfall in April
Tokyo, Japan
- Average rainfall in April: 39mm
The wettest month (with the highest rainfall) is October (51mm).
The driest month (with the least rainfall) is December (21mm).
Average rainfall days in April
Tokyo, Japan
- Average rainfall days in April: 12.8 days
The month with the highest number of rainy days is March (14.3 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in April
Tokyo, Japan
- Average snowfall in April: 0mm
The month with the highest snowfall is February (21mm).
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in April
Tokyo, Japan
- Average snowfall days in April: 0 days
The month with the highest number of snowfall days is February (2.3 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
Tokyo, Japan
- Average sea temperature in April: 15.8°C
The best month for swimming (with the highest average sea temperature) is August (25.7°C).
The coldest month (with the lowest average sea temperature) is February (14°C).
Average daylight in April /
Average sunshine in April
Tokyo, Japan
- Average daylight in April: 13h and 6min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in April: 9h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 5h and 48min).
Average sunshine days in April
Tokyo, Japan
- Average sunshine days in April: 14.8 days
The month with the most sunshine days is January (21.8 days).
The month with the least sunshine days is June (14.4 days).
Average UV index in April
Tokyo, 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, February, March, November and December (UV index 3).
Average cloud cover in April
Tokyo, Japan
- Average cloud cover in April: 39
The months with the most cloud cover are June and October (Cloud cover 43).
The month with the least cloud cover is January (Cloud cover 28).
Average visibility in April
Tokyo, Japan
- Average visibility in April: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).





