Climate Report over Japan
Monthly Highlights
-Monthly mean temperatures were significantly above normal in northern, eastern and western Japan, with the highest on record for July since 1946 in eastern Japan due to stronger-than-normal extensions of the North Pacific Subtropical High and the Tibetan High to mainland Japan.
-Monthly sunshine durations were also significantly above normal in eastern Japan and the Sea of Japan side of western Japan, with the highest on record for July since 1946 on the Sea of Japan side of eastern Japan.
-Monthly precipitation amounts were significantly above normal on the Sea of Japan side of northern Japan, on the Pacific side of western Japan and Okinawa/Amami. Due to the active Baiu front, there were places where disasters caused by heavy rain in western Japan.
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.