Climate Report over Japan
Monthly Highlights
- Monthly mean temperature in Okinawa/Amami was the highest on record for May since 1946, because the North Pacific Subtropical High extended westward of its climatological extent brought above normal solar radiation and southerly warm air advection.
- The Baiu-front was active and displaced northward of its climatological latitude in May. Due to this, in combination with low pressure systems, monthly precipitation amounts were significantly above normal in western Japan and monthly sunshine durations were significantly below normal in the Sea of Japan side of northern and eastern 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.