Climate Report over Japan
Monthly Highlights
- From the end of September to the beginning of October, typhoons TRAMI and KONG-REY approached Japan repeatedly, which brought wind storm and heavy rain in various parts of the country. Monthly precipitation amounts were above normal in Hokkaido and Okinawa/Amami due to typhoons, low pressures and fronts. Meanwhile, on the Pacific side of eastern and western Japan, monthly precipitation amounts were below normal due to weak influences of southerly moist airflow. Monthly mean temperature was significantly above normal in northern Japan. In Okinawa/Amami, monthly mean temperature was significantly below normal and the lowest for October in 32 years.
Climate Anomaly Table Over Japan
Monthly Climate Anomaly over Japan
Time Series of Temperature Anomaly
Time Series of 10days Precipitation Amount Ratio and Sunshine Duration Ratio
10-day Mean Sea Level Pressure
10-day Mean 850hPa Temperature
10-day Mean 500hPa GeoPotential Height
10-day Mean Outgoing Longwave Radiation
Note: Figures of outgoing longwave radiation (OLR) in Monthly Report over Japan are based on the NOAA CPC Blended OLR data from the September 2023 report, while they were based on the NOAA CPC AVHRR OLR data until the August 2023 report.