April weather forecastNikko, Japan
April
Weather in April
April brings a significant shift in Nikko's weather pattern with a definite move into springtime. This truly sets this month apart from its predecessor, March. The most significant hallmark of April weather is the 107mm (4.21") rainfall, which nurtures the blossoming of spring flowers. While cherry blossoms burst into spectacle, one can witness the city animated with vibrant colors. Even as the temperatures feel comfortable, carrying an umbrella helps handle unpredictable showers.Temperature
As March transitions into April, a change in temperatures is observed, with average highs moving from a chilly 7.9°C (46.2°F) to a refreshing 13.4°C (56.1°F). Throughout April nights, Nikko experiences a consistent temperature average of 3.8°C (38.8°F).Humidity
The average relative humidity in April in Nikko is 74%.Rainfall
In Nikko, in April, it is raining for 19.1 days, with typically 107mm (4.21") of accumulated precipitation. Throughout the year, in Nikko, there are 226.7 rainfall days, and 1238mm (48.74") of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. April is the last month it regularly snows in Nikko. During 1.8 snowfall days, in April, Nikko aggregates 23mm (0.91") of snow. In Nikko, during the entire year, snow falls for 57 days and aggregates up to 603mm (23.74") of snow.Daylight
The average length of the day in April in Nikko, Japan, is 13h and 8min.On the first day of the month, sunrise is at 05:26 and sunset at 18:03. On the last day of April, in Nikko, sunrise is at 04:48 and sunset at 18:28 JST.
Sunshine
In Nikko, the average sunshine in April is 9.3h.UV index
In April, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum UV index of 4 in April translates into the following recommendations:
Make use of precautions - Suggestions to resist sunburn are communicated. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Nikko, Japan
- Average high temperature in April: 13.4°C
The warmest month (with the highest average high temperature) is August (27.6°C).
The month with the lowest average high temperature is January (2.8°C).
- Average low temperature in April: 3.8°C
The month with the highest average low temperature is August (19.6°C).
The coldest month (with the lowest average low temperature) is January (-4.3°C).
Average pressure in April
Nikko, 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
Nikko, Japan
- Average wind speed in April: 8.6km/h
The windiest month (with the highest average wind speed) is January (9.9km/h).
The calmest month (with the lowest average wind speed) is July (5.2km/h).
Average humidity in April
Nikko, Japan
- Average humidity in April: 74%
The month with the highest relative humidity is July (85%).
The months with the lowest relative humidity are January and March (73%).
Average rainfall in April
Nikko, Japan
- Average rainfall in April: 107mm
The wettest month (with the highest rainfall) is July (178mm).
The driest month (with the least rainfall) is February (41mm).
Average rainfall days in April
Nikko, Japan
- Average rainfall days in April: 19.1 days
The month with the highest number of rainy days is July (25.9 days).
The month with the least rainy days is January (12.8 days).
Average snowfall in April
Nikko, Japan
- Average snowfall in April: 23mm
The month with the highest snowfall is January (191mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in April
Nikko, Japan
- Average snowfall days in April: 1.8 days
The month with the highest number of snowfall days is January (18.6 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
Nikko, Japan
- Average daylight in April: 13h and 6min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in April: 9h and 18min
The month with the most sunshine is May (Average sunshine: 9h and 36min).
The month with the least sunshine is February (Average sunshine: 6h and 18min).
Average sunshine days in April
Nikko, Japan
- Average sunshine days in April: 7.4 days
The month with the most sunshine days is November (10.5 days).
The months with the least sunshine days are June and July (3.3 days).
Average UV index in April
Nikko, 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
Nikko, Japan
- Average cloud cover in April: 38
The month with the most cloud cover is July (Cloud cover 52).
The month with the least cloud cover is November (Cloud cover 30).
Average visibility in April
Nikko, Japan
- Average visibility in April: 9km
The months with the highest visibility are January, February, March, April, May, October, November and December (9km).
The months with the lowest visibility are June, July, August and September (8km).





