Climate and monthly weather forecastNikko, Japan
Climate and monthly weather forecast
The climate of Nikko
Located in central Japan, Nikko has a Köppen climate classification of Cfa, also known as a humid subtropical climate. This fact indicates that the city experiences no dry season, with precipitation somewhat distributed throughout the year and warmer summer temperatures tapering off into cool winters.A sweep of the climatological data indicates that temperatures in Nikko span from highs of 27.6°C (81.7°F) in August to lows reaching -4.3°C (24.3°F) in January. The mercury usually hovers above freezing outside of the winter months, providing a generally mild climate well suited to outdoor activities.
Precipitation ranges from a high of 178mm (7.01") in July to a minimum of 41mm (1.61") in February, indicating a lack of a truly dry season. The city experiences moderate to high levels of humidity throughout the year, rising from a low of 73% in January to a peak of 85% in July.
Snowfall varies significantly, with a pronounced peak in January and February, and negligible amounts from April to November. Nikko enjoys ample daylight hours, with a peak of 14.6 hours in June.
The best time to visit Nikko
The ideal time to visit Nikko largely hinges on visitors' preferences and intended activities. For those seeking comfortable temperatures and modest humidity, spring and autumn are optimal. March's temperatures range from a low of -0.8°C (30.6°F) to a high of 7.9°C (46.2°F), with April and May providing warmer conditions and more sunshine. Autumn, from September to November, offers similar conditions, with high temperatures between 17.5°C (63.5°F) in October and 11.5°C (52.7°F) in November.The worst time to visit Nikko
Considering the city's weather patterns, winter months may not suit visitors averse to cold weather and potential snowfall. January's temperatures range between a chill -4.3°C (24.3°F) and a high of 2.8°C (37°F), and the month also experiences an average of 191mm (7.52") of snowfall, making this the coldest month. February follows suit with similar chilly conditions and excess snowfall of 162mm (6.38").Spring weather in Nikko
Spring in Nikko brings moderate and warming temperatures, from 3.8°C (38.8°F) to 13.4°C (56.1°F) in April. Rainfall increases from 74mm (2.91") in March to a considerable 107mm (4.21") in April. However, daylight time also extends from 12 hours in March to 13.1 hours in April, providing longer hours for exploring the city.Summer weather in Nikko
The summer months from June to August in Nikko are characterized by warm temperatures and high rainfall. July is the hottest month, with temperatures ranging from 18.6°C (65.5°F) to 26.1C, coupled with the highest rainfall of 178mm (7.01"). Humidity peaks in this season, reaching up to 85%.Autumn weather in Nikko
Autumn in Nikko is marked by cooling temperatures and reduced rainfall compared to the summer months. September's temperatures range from 15.4°C (59.7°F) to 23.1°C (73.6°F), with precipitation reducing to 112mm (4.41"). Sunshine hours decrease steadily from September to November but remain comfortable for outdoor exploration.Winter weather in Nikko
Winter in Nikko is characterized by low temperatures and significant snowfall. January is the coldest month, with temperatures recorded between -4.3°C (24.3°F) to 2.8°C (37°F), and the highest snowfall reaches up to 191mm (7.52"). Despite the cold, daylight hours are relatively short, providing limited time for outdoor activities.Weather in January
Experiencing winter's grip, Nikko, Japan, witnesses its coldest month in January. The city's weather scenario involves a combination of cold waves, plenty of snow, and shorter days. The mercury plunges to a chilly -4.3°C (24.3°F) at night and manages just 2.8°C (37°F) during the day. Weather in January »Weather in February
Nearly identical to the preceding month, Nikko's February weather continues to be winter-dominated. The mix of snowy landscapes and freezing temperatures holds. Notably, the carpet of snow thickens in February with 162mm (6.38") of snowfall, nearly a sixth of the annual total. Weather in February »Weather in March
March unveils the first hint of spring in Nikko, accompanied by a gradual rise in temperatures. A transition from winter snowfall to rainfall sets the stage for a blooming environment. The appeal of the city gets enhanced by light snowflakes giving way to occasional showers. Weather in March »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. Weather in April »Weather in May
As the city transitions into early summer, May presents a mild and warm weather in Nikko. This month experiences an appreciable spike in temperature readings as compared to April. Intensifying the summertime feel, days extend to a long 14.1 hours of daylight. Weather in May »Weather in June
June marks the onset of the rainy season in Nikko, with its weather largely defined by its wet character. The city gets transformed with lush greenery, courtesy of the rainfall. A stark contrast to the preceding month, June sees the maximum rainfall, reaching a high of 153mm (6.02"). Weather in June »Weather in July
July, the heart of summer in Nikko, is characterized by warm, wet, and humid conditions. The weather in this month remains quite consistent with June’s, leading to continual vegetation growth. Speaking volumes, the highest daytime temperature of the year, 26.1°C (79°F), is encountered in this month. Weather in July »Weather in August
August continues to sizzle with summer heat and strong sunlight intensity, making it the warmest month in Nikko. Rising temperatures combined with enduring rainfall extend the humidity. The city reaches its highest recorded temperature point of 27.6°C (81.7°F) during this month and stands as the year's peak. Weather in August »Weather in September
The shift from summer to autumn brings a noticeable change in the city's weather by mid-September. The transition unfolds with the falling of leaves and a decrease in temperature. Balancing the equation, the city sees 112mm (4.41") of rainfall, the fifth-lowest amongst the other months. Weather in September »Weather in October
October, comfortably settled in autumn, swings the weather to cooler temperatures and crisp air in Nikko. With the decline of summer heat, the comfort level improves significantly. No month compares to October with its majestic show of autumn foliage, taking center stage in Nikko's weather highlights. Weather in October »Weather in November
November witnesses a further dip in temperature as Nikko moves towards the year-end. It's the phase when autumn bids adieu, and the early signs of winter start to creep in. Marking this transition, the weather is characterized by fewer daylight hours and increased freshness in the air. Weather in November »Weather in December
The arrival of December signals the beginning of winter in Nikko once again. Temperatures continue sliding with the arrival of frosty nights and cold days. A significant hallmark of winter, the recorded snowfall of 94mm (3.7"), adds a distinctive white touch to the city. Weather in December »Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Nikko, Japan
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).
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
Nikko, Japan
- Average pressure in January:
1016.8mbar - Average pressure in February:
1017.9mbar - Average pressure in March:
1016.2mbar - Average pressure in April:
1014.6mbar - Average pressure in May:
1012.1mbar - Average pressure in June:
1009.3mbar
- Average pressure in July:
1009.8mbar - Average pressure in August:
1010.4mbar - Average pressure in September:
1014mbar - Average pressure in October:
1017.3mbar - Average pressure in November:
1018.7mbar - Average pressure in December:
1016.7mbar
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
Nikko, Japan
- Average wind speed in January:
9.9km/h - Average wind speed in February:
9.7km/h - Average wind speed in March:
9km/h - Average wind speed in April:
8.6km/h - Average wind speed in May:
7.5km/h - Average wind speed in June:
6.1km/h
- Average wind speed in July:
5.2km/h - Average wind speed in August:
5.3km/h - Average wind speed in September:
6.1km/h - Average wind speed in October:
6.9km/h - Average wind speed in November:
7.1km/h - Average wind speed in December:
8.9km/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
Nikko, Japan
The month with the highest relative humidity is July (85%).
The months with the lowest relative humidity are January and March (73%).
Average rainfall
Nikko, Japan
- Average rainfall in January:
54mm - Average rainfall in February:
41mm - Average rainfall in March:
74mm - Average rainfall in April:
107mm - Average rainfall in May:
108mm - Average rainfall in June:
153mm
The wettest month (with the highest rainfall) is July (178mm).
The driest month (with the least rainfall) is February (41mm).
Average rainfall days
Nikko, Japan
- Average rainfall days in January:
12.8 days - Average rainfall days in February:
13.3 days - Average rainfall days in March:
16.8 days - Average rainfall days in April:
19.1 days - Average rainfall days in May:
20 days - Average rainfall days in June:
25 days
- Average rainfall days in July:
25.9 days - Average rainfall days in August:
25.3 days - Average rainfall days in September:
20.2 days - Average rainfall days in October:
18.4 days - Average rainfall days in November:
14.8 days - Average rainfall days in December:
15.1 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
Nikko, Japan
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
Nikko, Japan
- Average snowfall days in January:
18.6 days - Average snowfall days in February:
14.2 days - Average snowfall days in March:
10.3 days - Average snowfall days in April:
1.8 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0.7 days - Average snowfall days in December:
11.4 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 / Average sunshine
Nikko, Japan
- Average daylight in January:
10h and 0min - Average daylight in February:
10h and 48min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 6min - Average daylight in May:
14h and 6min - Average daylight in June:
14h and 36min
- Average daylight in July:
14h and 24min - Average daylight in August:
13h and 30min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 18min - Average daylight in November:
10h and 12min - Average daylight in December:
9h and 42min
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 January:
6h and 30min - Average sunshine in February:
6h and 18min - Average sunshine in March:
7h and 12min - Average sunshine in April:
9h and 18min - Average sunshine in May:
9h and 36min - Average sunshine in June:
8h and 42min
- Average sunshine in July:
8h and 36min - Average sunshine in August:
9h and 24min - Average sunshine in September:
7h and 54min - Average sunshine in October:
7h and 18min - Average sunshine in November:
6h and 30min - Average sunshine in December:
6h and 36min
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
Nikko, Japan
- Average sunshine days in January:
6.3 days - Average sunshine days in February:
6.7 days - Average sunshine days in March:
7 days - Average sunshine days in April:
7.4 days - Average sunshine days in May:
8.2 days - Average sunshine days in June:
3.3 days
- Average sunshine days in July:
3.3 days - Average sunshine days in August:
4 days - Average sunshine days in September:
7.3 days - Average sunshine days in October:
8.5 days - Average sunshine days in November:
10.5 days - Average sunshine days in December:
7.1 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
Nikko, Japan
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
Nikko, Japan
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
Nikko, Japan
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).





