Hirado Temperature by Month

Hirado, Nagasaki, Japan has an average annual maximum temperature of 21°C (70°F), ranging from 11°C (52°F) in January to 30°C (86°F) in August. Below you'll find a full monthly breakdown and a comparison with cities worldwide.

In Hirado, temperatures differ significantly between summer and winter months. Nighttime lows reflect this range, dropping from 26°C (79°F) in August to 6°C (43°F) in January.

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

From around 4 AM to 6 AM temperatures are at their lowest; by 3 PM they've climbed to their daily peak.

The chart below shows the average temperature throughout the year:

Hirado's average annual maximum temperature is 21°C (70°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.

Toronto, Canada averages 13°C (55°F) annually, with cold snowy winters balanced by genuinely warm summers.

Boston, USA averages 16°C (61°F) annually, with four distinct seasons and cold winters that rival northern Europe.

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

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 Hirado this rarely lasts long on the ground.

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