Nikko Temperature by Month
Nikko, Tochigi, Japan has an average annual maximum temperature of 16°C (61°F), ranging from 4°C (39°F) in January to 27°C (81°F) in August. Below you'll find a full monthly breakdown and a comparison with cities worldwide.
Nikko Monthly Temperatures
In Nikko, temperatures can shift dramatically between warm in summer and cold in winter. Nights follow the same pattern, with lows ranging from 20°C (68°F) in August to -5°C (23°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Nikko by month:
From around 4 AM to 6 AM temperatures are at their lowest; by 3 PM they've climbed to their daily peak. August, the warmest month, averages 139 hours of sunshine.
The chart below shows the average temperature throughout the year:
Daily Historical Temperatures
50-year average (1976-2025)
Average high and low temperatures for each day of the month based on long-term records.
Average temperatures in June
Historical Nikko Temperatures: 1976-2026
Browse day-by-day temperature records for Nikko spanning 51 years. Select any month and year to see actual high and low temperatures recorded on each day.
Temperature: Nikko vs Japan
The map below shows the annual temperature across Japan. You can also select individual months if you want to compare a specific time of year.
very warm
warm
pleasant
moderate
cold
very cold
Nikko vs World: Temperature Compared
Nikko's average annual maximum temperature is 16°C (61°F). To put that in context, here's how it compares to a few well-known destinations:
Seville, Spain averages 23°C (73°F) a year — one of the warmer cities in Western Europe, with long hot summers.
Reykjavík, Iceland averages 9°C (48°F) a year — mild summers by Icelandic standards, but cold winters and frequent wind.
New York City, USA averages 17°C (63°F) a year, with hot humid summers and cold winters that bring regular snowfall.
Tokyo, Japan averages 21°C (70°F) a year, with hot summers, cool winters, and a well-defined cherry blossom spring.
What Does the Temperature Feel Like in Nikko?
Temperature alone doesn't tell the whole story — humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.
In the cooler months, when temperatures drop below 10°C, high humidity makes the cold feel more cutting than it would in dry conditions.
In Nikko, January is the coolest month, with average highs of 4°C (39°F) and humidity around 65% — considered high. In August, the warmest month, temperatures average 27°C (81°F) with 86% humidity — conditions that feel very high. For a full picture, see our humidity page.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources — land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
Seasonal temperature shifts influence more than just how warm it feels — they also drive changes in rainfall, cloud cover, and wind patterns throughout the year.
Warmer air holds more moisture, which tends to mean heavier or more frequent rain during the warmer months. When temperatures drop in winter, any precipitation that does fall is more likely to come as snow or sleet, though in Nikko this rarely lasts long on the ground.
For more on Nikko's weather — including monthly rainfall, sunshine hours, and humidity — visit our Nikko climate page.
