Guides
Climate context, city by city.
These concise guides reorganize Japan Meteorological Agency climate normals into transparent city and month comparisons. They are historical 1991–2020 references, not forecasts.
01
How to read climate normals
What the displayed averages do — and do not — mean.
02Tokyo vs Osaka by month
Two neighbouring urban climate profiles in one table.
03Tokyo vs Sapporo by month
A north–south comparison across the year.
04Tokyo vs Naha by month
Why Okinawa needs its own climate context.
05Japan in March
Five selected observatories, same month.
06Japan in June
Temperature, precipitation and sunshine side by side.
07Japan in September
Long-term city contrast without a day-by-day claim.
08Japan in November
Late-year variation across the selected cities.
09January from Sapporo to Naha
One country, a broad temperature range.
10August from Sapporo to Naha
A comparison that avoids a single national average.
11Highest precipitation normal
What a monthly maximum can and cannot tell you.
12Sunshine hours by city
How to read a monthly sunshine-duration total.