Yonezawa Temperature by Month

Yonezawa in Yamagata, Japan sees significant seasonal temperature differences, with daytime highs between 2°C (36°F) in January and 28°C (82°F) in August, averaging 15°C (59°F) annually. Explore the full monthly breakdown below.

The climate in Yonezawa is known for significant temperature differences throughout the year. At night, this contrast is just as clear, 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 Yonezawa by month:

Low temperatures are most often recorded between 4 AM and 6 AM, while highs typically occur around 3 PM.

The chart below shows the average temperature throughout the year:

Yonezawa's average annual maximum temperature is 15°C (59°F). To put that in context, here's how it compares to a few well-known destinations:

Barcelona, Spain has an annual average of around 21°C (70°F), with warm summers and mild, fairly short winters.

On the cooler end, Oslo, Norway averages just 10°C (50°F) annually, with pleasant summers but long, cold winters.

Osaka, Japan averages 22°C (72°F) annually, with hot humid summers, mild winters, and pleasant spring and autumn seasons.

Tokyo, Japan averages 21°C (70°F) a year, with hot summers, cool winters, and a well-defined cherry blossom spring.

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.

Whether a city sits on the coast or deep inland makes a significant difference to its climate. Coastal areas tend to have more stable temperatures year-round, large bodies of water absorb heat slowly in summer and release it gradually in winter, keeping extremes in check. Cities far from the sea don't benefit from that buffer, which is why continental climates tend to have hotter summers and colder winters than their coastal counterparts at the same latitude.

For more on Yonezawa's weather, including monthly rainfall, sunshine hours, and humidity, visit our Yonezawa climate page.