Climate Report over Japan
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Monthly Highlights
- Monthly mean temperatures were above normal in northern/western Japan, because warm-air often covered the regions.
- Monthly precipitation amounts were significantly above normal on the Sea of Japan side and on the Pacific side in eastern/western Japan, because the regions were well affected by low-pressure systems and fronts.
- Monthly sunshine durations were above normal on the Sea of Japan side and on the Pacific side in northern Japan and in Okinawa/Amami, because the regions were well covered by high-pressure systems. On the other hand, monthly sunshine durations were below normal on the Sea of Japan side in eastern Japan, because the region was well affected by low-pressure systems, fronts, and winter monsoon.
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.