Katashina Temperature by Month
Katashina, Gunma, 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.
Katashina Monthly Temperatures
Depending on the time of the year, temperatures range from comfortable to very cold in Katashina. At night, minimum temperatures range from 18°C (64°F) in August to -7°C (19°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Katashina 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 207 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Katashina 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
Katashina vs World: Temperature Compared
Katashina'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:
Rome, Italy averages 20°C (68°F) annually, with reliably warm summers and comfortable winters.
Reykjavík, Iceland averages 9°C (48°F) a year — mild summers by Icelandic standards, but cold winters and frequent wind.
Osaka, Japan averages 22°C (72°F) annually, with hot humid summers, mild winters, and pleasant spring and autumn seasons.
Perth, Australia averages 25°C (77°F) annually, with a classic Mediterranean climate — hot dry summers and mild wet winters.
What Does the Temperature Feel Like in Katashina?
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 Katashina, January is the coolest month, with average highs of 1°C (34°F) and humidity around 61% — considered high. In August, the warmest month, temperatures average 26°C (79°F) with 76% humidity — conditions that feel 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 Katashina's weather — including monthly rainfall, sunshine hours, and humidity — visit our Katashina climate page.
