Saitama Temperature by Month
The average annual maximum temperature in Saitama, Saitama, 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 Saitama compares to cities worldwide.
Saitama Monthly Temperatures
Depending on the time of the year, temperatures range from very warm to cold in Saitama. At night, minimum temperatures range from 24°C (75°F) in August to 0°C (32°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Saitama by month:
From around 4 AM to 6 AM temperatures are at their lowest; by 3 PM they've climbed to their daily peak. August, the warmest month, averages 185 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Saitama 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
Saitama vs World: Temperature Compared
Saitama'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:
Lisbon, Portugal averages 21°C (70°F) annually — warm summers, mild winters, and rain mainly in the cooler months.
Queenstown, New Zealand averages 10°C (50°F) annually — remember seasons are flipped, so its coldest months fall in June and July.
Beijing, China averages 20°C (68°F) annually, but with big seasonal swings — very cold winters and hot summers.
Perth, Australia averages 25°C (77°F) annually, with a classic Mediterranean climate — hot dry summers and mild wet winters.
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 Saitama's weather — including monthly rainfall, sunshine hours, and humidity — visit our Saitama climate page.
