Hagi Temperature by Month
The average annual maximum temperature in Hagi, Yamaguchi, Japan is 21°C (70°F), with daytime highs ranging from 10°C (50°F) in January to 32°C (90°F) in August. This page covers monthly averages, day-night differences, and how Hagi compares to cities worldwide.
Hagi Monthly Temperatures
In Hagi, temperatures differ significantly between summer and winter months. Nighttime lows reflect this range, dropping from 24°C (75°F) in August to 3°C (37°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Hagi by month:
Temperatures tend to bottom out between 4 AM and 6 AM, then climb to their daily peak around 3 PM.
The chart below shows the average temperature throughout the year:
Temperature: Hagi 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
Hagi vs World: Temperature Compared
Hagi'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:
Athens, Greece sits at 23°C (73°F) on average, with hot dry summers and mild winters characteristic of the Mediterranean.
Interlaken, Switzerland averages 8°C (46°F) a year, with cold winters and cool summers thanks to its Alpine setting.
New York City, USA averages 17°C (63°F) a year, with hot humid summers and cold winters that bring regular snowfall.
Brisbane, Australia averages 26°C (79°F) a year, with warm winters and hot, humid summers.
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 Hagi's weather — including monthly rainfall, sunshine hours, and humidity — visit our Hagi climate page.
