Hamamatsu Temperature by Month

The average annual maximum temperature in Hamamatsu, Shizuoka, Japan is 22°C (72°F), with daytime highs ranging from 11°C (52°F) in January to 32°C (90°F) in August. This page covers monthly averages, day-night differences, and how Hamamatsu compares to cities worldwide.

The climate in Hamamatsu is dynamic, ranging widely from chilly in winter to very warm in summer. Nights are significantly colder, with lows dropping from 25°C (77°F) in August to 3°C (37°F) in January.

The chart below illustrates the average maximum day and minimum night temperatures in Hamamatsu by month:

The coolest part of the day is typically between 4 AM and 6 AM, while 3 PM is usually the warmest, when solar heating is at its peak. August, the city's warmest month, averages 212 hours of sunshine.

The chart below shows the average temperature throughout the year:

Hamamatsu's average annual maximum temperature is 22°C (72°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.

Zermatt, Switzerland averages just 4°C (39°F) annually due to its altitude, with very cold winters and cool summers even at its warmest.

Buenos Aires, Argentina averages 23°C (73°F) a year, with hot summers and mild winters, and seasons reversed compared to Europe.

Adelaide, Australia averages 21°C (70°F) a year, with warm summers, mild winters, and relatively low rainfall year-round.

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 Hamamatsu, January is the coolest month, with average highs of 11°C (52°F) and humidity around 56%, considered moderate. In August, the warmest month, temperatures average 32°C (90°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 Hamamatsu's weather, including monthly rainfall, sunshine hours, and humidity, visit our Hamamatsu climate page.