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 sea temperature 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
Weather in April
Temperature
Sendai's transition into April is marked by a temperature shift, moving from a chilly 8.3°C (46.9°F) in March to a moderate 13.6°C (56.5°F). Sendai's average low-temperature in April is measured at a frosty 6.1°C (43°F).Humidity
The months with the lowest humidity in Sendai, Japan, are April and May, with an average relative humidity of 72%.Rainfall
In Sendai, during April, the rain falls for 13.3 days and regularly aggregates up to 71mm (2.8") of precipitation. Throughout the year, there are 152.2 rainfall days, and 720mm (28.35") of precipitation is accumulated.Snowfall
January through April and December are months with snowfall in Sendai. April is the last month it regularly snows in Sendai. During 0.5 snowfall days, in April, Sendai aggregates 5mm (0.2") of snow. Throughout the year, there are 27.1 snowfall days, and 195mm (7.68") of snow is accumulated.Sea temperature
In Sendai, Japan, the average seawater temperature in April is 9.4°C (48.9°F).Note: Engaging in a swim in 9.4°C (48.9°F) can threaten life. Brief exposure to 13°C (55.4°F) waters is uneasy, and submersion below 10°C (50°F) can lead to cold shock and disrupted breathing patterns, varying by individual.
Daylight
In Sendai, the average length of the day in April is 13h and 12min.On the first day of April in Sendai, sunrise is at 05:21 and sunset at 17:59. On the last day of the month, sunrise is at 04:40 and sunset at 18:26 JST.
Sunshine
The average sunshine in April is 9h.UV index
In Sendai, the average daily maximum UV index in April is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: An average UV index of 4 in April transforms into this advice:
Ensure safety - Recommendations to avert sunburn are presented. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Frequently asked questions
What is the temperature in April in Sendai?
What is the least humid month in Sendai?
What is the average humidity in April in Sendai?
How many days does it rain in April in Sendai?
What is the last month it snows in Sendai?
What is the sea water temperature in April in Sendai?
How many hours of daylight does Sendai have in April?
When are sunrise and sunset in April in Sendai?
How long on average sun shines in April in Sendai?
What is the UV index intensity in April in Sendai?
Average temperature in April
Sendai, Japan
- Average high temperature in April: 13.6°C
The warmest month (with the highest average high temperature) is August (27.8°C).
The month with the lowest average high temperature is January (3.3°C).
- Average low temperature in April: 6.1°C
The month with the highest average low temperature is August (21.4°C).
The coldest months (with the lowest average low temperature) are January and February (-1.7°C).
Average pressure in April
Sendai, Japan
- Average pressure in April: 1014.6mbar
The month with the highest atmospheric pressure is November (1018.7mbar).
The month with the lowest atmospheric pressure is June (1009.3mbar).
Average wind speed in April
Sendai, Japan
- Average wind speed in April: 12.9km/h
The windiest month (with the highest average wind speed) is January (14.4km/h).
The calmest month (with the lowest average wind speed) is July (8.1km/h).
Average humidity in April
Sendai, Japan
- Average humidity in April: 72%
The month with the highest relative humidity is July (84%).
The months with the lowest relative humidity are April and May (72%).
Average rainfall in April
Sendai, Japan
- Average rainfall in April: 71mm
The wettest months (with the highest rainfall) are July and October (111mm).
The driest month (with the least rainfall) is February (22mm).
Average rainfall days in April
Sendai, Japan
- Average rainfall days in April: 13.3 days
The month with the highest number of rainy days is July (20.7 days).
The month with the least rainy days is January (8.7 days).
Average snowfall in April
Sendai, Japan
- Average snowfall in April: 5mm
The month with the highest snowfall is February (63mm).
The months with the least snowfall are May, June, July, August, September, October and November (0mm).
Average snowfall days in April
Sendai, Japan
- Average snowfall days in April: 0.5 days
The month with the highest number of snowfall days is February (9.2 days).
The months with the least snowfall days are May, June, July, August, September, October and November (0 days).
Average sea temperature in April
Sendai, Japan
- Average sea temperature in April: 9.4°C
The best month for swimming (with the highest average sea temperature) is August (23.9°C).
The coldest month (with the lowest average sea temperature) is March (7.5°C).
Average daylight in April /
Average sunshine in April
Sendai, Japan
- Average daylight in April: 13h and 1min
The month with the longest days is June (Average daylight: 14h and 48min).
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 January (Average sunshine: 5h and 6min).
Average sunshine days in April
Sendai, Japan
- Average sunshine days in April: 14 days
The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is July (7.2 days).
Average UV index in April
Sendai, Japan
- Average UV index in April: 4
The months with the highest UV index are July and August (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
Sendai, Japan
- Average cloud cover in April: 38
The month with the most cloud cover is July (Cloud cover 49).
The month with the least cloud cover is May (Cloud cover 36).
Average visibility in April
Sendai, Japan
- Average visibility in April: 9km
The months with the highest visibility are October, November and December (10km).
The month with the lowest visibility is July (8km).
Sendai, Japan
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