Nanjo Temperature by Month
Nanjo in Okinawa islands, Japan sees moderate seasonal temperature shifts, with daytime highs between 21°C (70°F) in February and 30°C (86°F) in August, averaging 25°C (77°F) annually. Explore the full monthly breakdown below.
Nanjo Monthly Temperatures
The moderate changes in the climate in Nanjo ensure gradual weather shifts through each season. At night, temperatures drop to between 28°C (82°F) and 17°C (63°F) depending on the time of year.
The chart below illustrates the average maximum day and minimum night temperatures in Nanjo 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 220 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Nanjo 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
Nanjo vs World: Temperature Compared
Nanjo's average annual maximum temperature is 25°C (77°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.
Zermatt, Switzerland averages just 4°C (39°F) annually due to its altitude, with very cold winters and cool summers even at its warmest.
Chicago, USA averages 15°C (59°F) annually — known for extreme seasonal swings, from bitterly cold winters to warm summers.
Adelaide, Australia averages 21°C (70°F) a year, with warm summers, mild winters, and relatively low rainfall year-round.
What Does the Temperature Feel Like in Nanjo?
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 Nanjo, February is the coolest month, with average highs of 21°C (70°F) and humidity around 70% — considered high. In August, the warmest month, temperatures average 30°C (86°F) with 78% 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.
Global average temperatures have risen by around 1.2°C since the pre-industrial era, and the effects are visible across many regions. Winters are milder on average, with fewer frost days and less snow in many parts of the world. Heatwaves are more frequent and more intense, and Europe's summers of 2018, 2019, and 2020 all set records.
Summers are also getting drier in some areas, while winter rainfall has increased in others. This contributies to higher river levels and more flooding. In many countries, spring arrives earlier and autumn lasts longer. It has knock-on effects for wildlife, agriculture, and local ecosystems.
For more on Nanjo's weather — including monthly rainfall, sunshine hours, and humidity — visit our Nanjo climate page.
