Nikko, nestled in the mountains of Tochigi Prefecture, features a humid continental climate with four distinct seasons. Summers are short, warm, humid, and wet, while winters are long, cold, and snowy. The region’s dramatic temperature swings, abundant precipitation, and scenic beauty make it a year-round destination for outdoor and cultural experiences.
The best times to travel section shows how the months compare for a visit, so you can find the time of year that fits what you want to do.
Background colors of the months:
The color shows the typical temperature: yellow (hot), green (mild) and blue (cold). How strong the color is shows the travel season: full color means high season, soft color means shoulder season and soft-striped means off season.
Weather symbols:
Each month has one symbol showing what the weather is typically like, such as hot and sunny, freezing or a rainy or snowy season. Use them to quickly spot months that match the weather you want, or to avoid the ones that don't.
Crowdedness:
The people icon shows how busy the place usually is. The more people, the more crowded it gets.
Additional notes:
The gray info boxes point out special things worth knowing, like recurring weather issues or seasonal events.
Nikko’s climate is shaped by its elevation (around 1,300 meters) and mountainous terrain, resulting in cool, wet conditions year-round. Winters (December–February) are cold and snowy, with average highs of 1–5°C and lows frequently dropping below –5°C. Snowfall is common, with annual totals often exceeding 100 cm, transforming the region into a winter wonderland ideal for snow sports and onsen bathing. Sunshine is limited in winter, with 4–6 hours per day, and strong winds can make it feel even colder.
Spring (March–May) brings a gradual warming, with cherry blossoms blooming in April. Daytime highs rise from 5°C in March to 17–20°C in May, while nights remain chilly. Rainfall increases, and spring is often the rainiest season. Summers (June–August) are short, warm, humid, and wet, with average highs of 23–27°C and lows around 15°C. July and August are the wettest months, each receiving over 200 mm of rain, and frequent cloudy days. Despite the rain, summer is lush and vibrant, perfect for hiking and exploring waterfalls. Autumn (September–November) is crisp and cool, with highs from 20°C in September to 10°C in November, and is famous for its spectacular foliage. Annual precipitation is high, averaging 1,800–2,100 mm, and Nikko receives 1,700–2,000 hours of sunshine per year. Winds are generally light to moderate, but can be brisk in winter and during storms.
| Average climate data for Nikko, Japan | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Average maximum temperature (°F) | 37 | 39 | 46 | 56 | 67 | 72 | 79 | 82 | 74 | 64 | 53 | 42 | 82 |
| Average minimum temperature (°F) | 24 | 25 | 30 | 39 | 50 | 58 | 66 | 67 | 60 | 50 | 40 | 30 | 24 |
| Average precipitation (inch) | 2 | 2 | 3 | 4 | 4 | 6 | 7 | 6 | 4 | 6 | 2 | 2 | 49 |
| Average rainfall days (days) | 13 | 13 | 17 | 19 | 20 | 25 | 26 | 25 | 20 | 19 | 15 | 15 | 227 |
| Average snowfall (inch) | 8 | 6 | 5 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 24 |
| Average snowfall days (days) | 19 | 14 | 10 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 11 | 57 |
| Average relative humidity (%) | 74 | 75 | 72 | 75 | 75 | 82 | 85 | 83 | 83 | 80 | 77 | 73 | 78 |
| Average wind speed (mph) | 6 | 6 | 6 | 5 | 5 | 4 | 3 | 3 | 4 | 4 | 4 | 5 | 5 |
| Average daily daylight hours (h) | 10 | 10 | 12 | 13 | 14 | 14 | 14 | 13 | 12 | 11 | 10 | 9 | 12 |
| Average daily sunshine hours (h) | 6 | 6 | 7 | 9 | 9 | 8 | 8 | 9 | 7 | 7 | 6 | 6 | 7 |
| Average cloud coverage (%) | 31 | 34 | 38 | 39 | 36 | 50 | 51 | 47 | 46 | 42 | 30 | 31 | 40 |
| Average UV index | 2 | 2 | 2 | 4 | 4 | 5 | 6 | 5 | 4 | 3 | 2 | 2 | 3 |
The best times to visit Nikko are in spring (April–May) for cherry blossoms and in autumn (late September–November) for vibrant fall foliage. These seasons offer mild, comfortable temperatures, fewer crowds, and the region’s most beautiful natural scenery, making them ideal for sightseeing, hiking, and cultural events.
The least favorable time to visit is from late June to August, when Nikko experiences its rainy season and peak summer humidity. Frequent heavy rainfall and cloudy days can disrupt outdoor plans. Winter, while beautiful, is very cold and snowy, requiring proper gear and preparation for those unaccustomed to harsh winter conditions.
Nikko has a humid continental climate with short, warm, wet summers and long, cold, snowy winters. The region experiences dramatic seasonal changes, abundant rainfall, and significant temperature swings.
The rainy season in Nikko typically occurs from June to July, with July and August being the wettest months. Expect frequent showers and high humidity during this period.
Yes, Nikko receives significant snowfall from December to February, with annual totals often exceeding 100 cm. Snow transforms the area into a winter wonderland, ideal for snow sports and onsen visits.
Cherry blossoms in Nikko usually bloom in April. This period offers cool to mild weather and is ideal for hanami (flower viewing) and outdoor sightseeing.
Yes, Nikko is a popular destination for winter sports such as skiing and snowshoeing, especially from December to February when snowfall is heaviest.
Nikko receives between 1,800 and 2,100 mm of precipitation each year, with the wettest months being June through September. Winter is relatively drier but features frequent snowfall.
Spring (April–May) and autumn (September–November) are the best seasons for hiking in Nikko, offering mild temperatures, clear skies, and beautiful cherry blossoms or autumn foliage.
The warmest month, with the highest average maximum temperature, is August (81.5 °F). The month with the lowest average maximum temperature is January (37.1 °F). Overall, the average maximum temperature over the whole year is 59.1 °F.
The month with the highest average minimum temperature is August (67.3 °F). The coldest month, with the lowest average minimum temperature, is January (24.1 °F). Overall, the average minimum temperature over the whole year is 44.8 °F.
The wettest month, with the highest amount of precipitation, is July (7 inch). The driest month, with the least amount of precipitation, is February (1.6 inch). Over the whole year there are 48.7 inch of rainfall on average.
The month with the most days of rain is July (25.8 days). The month with the fewest days of rain is January (12.8 days). Over the whole year there are 226.6 days of rain on average.
The month with the most snowfall is January (7.5 inch). The months with the least snowfall are May, June, July, August, September and October (0 inch). Over the whole year there are 23.8 inch of snowfall on average.
The month with the most days of snowfall is January (18.5 days). The month with the fewest days of snowfall is September (0 days). Over the whole year there are 57.4 days of snowfall on average.
The month with the highest average relative humidity is July (85.5 %). The month with the lowest average relative humidity is March (71.9 %). The overall average relative humidity over the whole year is 77.8 %.
The windiest month, with the highest average wind speed, is January (6.2 mph). The calmest month, with the lowest average wind speed, is July (3.3 mph). The overall average wind speed over the whole year is 4.7 mph.
The month with the cloudiest skies, so the highest cloud coverage, is July (51.1 %). The month with the clearest skies, so the lowest cloud coverage, is November (29.9 %). Over the whole year there is an average cloud coverage of 39.6 %.
The month with the longest days, so the most daylight, is June (Average daylight: 14.1 h). The month with the shortest days, so the least daylight, is December (Average daylight: 9.1 h). Over the whole year there are 11.9 h of daylight per day on average.
The month with the most sunshine per day is May (Average sunshine: 9.2 h). The month with the least sunshine per day is November (Average sunshine: 6 h). Over the whole year there are 7.4 h of sunlight per day on average.
The month with the highest average UV index is July (UV index: 6). The months with the lowest average UV index are January, February, March, November and December (UV index: 2). Over the whole year the average UV index is 3.4.
