Historical Weather in Osaka, Japan
See 55+ years of weather history for any date in Osaka going back to 1970.
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Monthly Climate Averages
Historical temperature and precipitation averages for Osaka, Japan, based on 55+ years of weather data.
Temperatures shown in Celsius with Fahrenheit in parentheses. Rainfall in millimetres, snowfall in centimetres.
Osaka Weather by Month
January is Osaka's coldest month of the year.
February 2026 was the 2nd warmest February in 55 years of records, 2.3°C (4.2°F) above the long-run average.
8 of the 10 warmest Marches on record in Osaka have come since 2012.
April 2026 was the 2nd warmest April in 53 years of records, 2.7°C (4.8°F) above the long-run average.
May 2026 was the warmest May in 54 years of records, 2.3°C (4.2°F) above the long-run average.
The June heat record, 37°C (99°F) on June 14, 1978, has stood for 48 years.
5 of the 10 warmest Julys on record in Osaka have come since 2012.
A typical August brings 7.8 days above 35°C (95°F).
September 2025 was the 3rd warmest September in 54 years of records, 3.0°C (5.4°F) above the long-run average.
October 2025 was the 2nd warmest October in 54 years of records, 2.3°C (4.1°F) above the long-run average.
5 of the 10 warmest Novembers on record in Osaka have come since 2011.
December 2025 was the 4th warmest December in 54 years of records, 1.4°C (2.4°F) above the long-run average.
Source: NOAA GHCN-Daily, Osaka (1973–2026); Kobe (1971–2025). Records through 2026.