Minamiaizu Temperature by Month
Minamiaizu, Japan has an average annual maximum temperature of 14°C (57°F), ranging from 1°C (34°F) in January to 26°C (79°F) in August. Below you'll find a full monthly breakdown and a comparison with cities worldwide.
Minamiaizu Monthly Temperatures
Depending on the time of the year, temperatures range from comfortable to very cold in Minamiaizu. At night, minimum temperatures range from 19°C (66°F) in August to -7°C (19°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Minamiaizu by month:
The coldest point of the day usually falls between 4 AM and 6 AM, with temperatures peaking around 3 PM. August, the city's warmest month, gets 139 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Minamiaizu 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.
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Minamiaizu vs World: Temperature Compared
Minamiaizu's average annual maximum temperature is 14°C (57°F). To put that in context, here's how it compares to a few well-known destinations:
Lisbon, Portugal averages 21°C (70°F) annually — warm summers, mild winters, and rain mainly in the cooler months.
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.
Melbourne, Australia averages 20°C (68°F) annually — known for unpredictable weather, with four seasons sometimes happening in one day.
What Does the Temperature Feel Like in Minamiaizu?
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 Minamiaizu, January is the coolest month, with average highs of 1°C (34°F) and humidity around 65% — considered high. In August, the warmest month, temperatures average 26°C (79°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.
For cities and regions with significant elevation, altitude is one of the biggest factors shaping local temperatures. As a rule of thumb, temperatures fall by around 6°C for every 1,000 metres gained — so a city at 2,000 metres will typically be around 12°C cooler than a city at sea level in the same region. Higher ground also tends to see more dramatic day-to-night temperature swings, since thinner air loses heat faster after sunset.
For more on Minamiaizu's weather — including monthly rainfall, sunshine hours, and humidity — visit our Minamiaizu climate page.
