Contents
- Weather in April
- Frequently asked questions
- Average temperature 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 UV index in April
Weather in April
Temperature
April's arrival brings a slight change in high-temperatures, adjusting from a moderate 14.8°C (58.6°F) in March to a still refreshing 19.7°C (67.5°F). Nagasaki's temperature tends to fall to an average low of 11.6°C (52.9°F) during the nights of April.Humidity
In April, the average relative humidity in Nagasaki is 68%.Rainfall
In Nagasaki, in April, during 10.8 rainfall days, 151mm (5.94") of precipitation is typically accumulated. Throughout the year, there are 124.7 rainfall days, and 1858mm (73.15") of precipitation is accumulated.Snowfall
March through November are months without snowfall.Sea temperature
In Nagasaki, the average seawater temperature in April is 16.4°C (61.5°F).Note: Swimming is not a pleasurable activity for most people when the water temperature is 16.4°C (61.5°F). Breathing control gets harder as the water temperature drops from 21°C (69.8°F) to 15°C (59°F).
Daylight
In April, the average length of the day is 12h and 59min.On the first day of April in Nagasaki, sunrise is at 06:08 and sunset at 18:40. On the last day of the month, sunrise is at 05:34 and sunset at 19:01 JST.
Sunshine
In April, the average sunshine in Nagasaki is 5.8h.UV index
In April, the average daily maximum UV index is 9. A UV Index value of 8 to 10 symbolizes a very high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In April, a regular UV index of 9 translates into these guidelines:
Immediate precautions are necessary; otherwise, skin and eyes might get damaged quickly. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Frequently asked questions
What are the temperatures in Nagasaki in April?
What is the average humidity in April in Nagasaki?
How many days does it rain in April in Nagasaki?
When it does not snow in Nagasaki?
How cold is the water in April in Nagasaki?
What is the average length of the day in April in Nagasaki?
When is the sunrise / sunset in April in Nagasaki?
How long on average sun shines in April in Nagasaki?
How high is the UV index in April in Nagasaki?
Average temperature in April
Nagasaki, Japan
- Average high temperature in April: 19.7°C
The warmest month (with the highest average high temperature) is August (31.7°C).
The month with the lowest average high temperature is January (10.4°C).
- Average low temperature in April: 11.6°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 (3.8°C).
Average humidity in April
Nagasaki, Japan
- Average humidity in April: 68%
The month with the highest relative humidity is July (80%).
The month with the lowest relative humidity is February (64%).
Average rainfall in April
Nagasaki, Japan
- Average rainfall in April: 151.3mm
The wettest month (with the highest rainfall) is June (314.6mm).
The driest month (with the least rainfall) is December (60.8mm).
Average rainfall days in April
Nagasaki, Japan
- Average rainfall days in April: 10.8 days
The month with the highest number of rainy days is June (13.5 days).
The month with the least rainy days is October (6.2 days).
Average snowfall in April
Nagasaki, Japan
- Average snowfall in April: 0mm
The month with the highest snowfall is January (20mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0mm).
Average snowfall days in April
Nagasaki, Japan
- Average snowfall days in April: 0 days
The month with the highest number of snowfall days is January (1.2 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
Nagasaki, Japan
- Average sea temperature in April: 16.4°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 (15.3°C).
Average daylight in April /
Average sunshine in April
Nagasaki, Japan
- Average daylight in April: 13h and 0min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in April: 5h and 5min
The month with the most sunshine is August (Average sunshine: 6h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average UV index in April
Nagasaki, Japan
- Average UV index in April: 9
The months with the highest UV index are July and August (UV index 11).
The months with the lowest UV index are January and December (UV index 3).
Nagasaki, Japan
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