Explore by place & date
Place and date: set both, then aggregate to see clear/cloudy/rain by time of day (historical data), plus year-by-year temperature and humidity (including a 5-year average). Not a forecast.
Coverage is Japan only for now. The map may show nearby countries; reverse geocoding may show foreign names, but statistics only apply inside Japan.
First choose which place to analyze, then pick the month & day. When both are set, tap “Run with these settings” to see weather proportions plus temperature and humidity charts.
Choose place
This is the reference point for aggregation. You can change it anytime.Japan only for now (search and map extent may look wider).
Selected place
Tokyo (near Chiyoda)
35.68124°, 139.76712°
How to specify the place
Choose month & day
Combined with step 1, this shows the “same calendar date every year” tendency (including Feb 29 on leap years).
Aggregates the same month/day over the past 24 years (weather by time of day, year-by-year temperature/humidity and 5-year averages—reanalysis data).
Matching JMA Amedas stations is planned for a future update.