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Climate Report over Japan





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Monthly Highlights

- Northern Japan was frequently covered by high pressure systems. Monthly sunshine durations were significantly above normal on the Sea of Japan side of northern Japan (the longest on record for September since 1946) and above normal on the Pacific side of northern Japan. Monthly precipitation amounts were below normal in northern Japan.
- Monthly sunshine durations were below normal in western Japan and on the Pacific side of eastern Japan due to cloudy and rainy weather conditions brought by the fronts and Typhoon Chanthu until mid-September.
- In Okinawa/Amami, monthly mean temperatures and monthly sunshine durations were significantly above normal due to high pressure systems that often covered the region.

Climate Anomaly Table Over Japan

Monthly Climate Anomaly over Japan

TRS_map

Time Series of Temperature Anomaly

regtmp

Time Series of 10days Precipitation Amount Ratio and Sunshine Duration Ratio

precandsunshine

10-day Mean Sea Level Pressure

SLP_1
SLP_2
SLP_3

10-day Mean 850hPa Temperature

T850_1
T850_2
T850_3

10-day Mean 500hPa GeoPotential Height

SLP_1
SLP_1
SLP_1

10-day Mean Outgoing Longwave Radiation

OLR_1
OLR_2
OLR_3
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Tokyo Climate Center, Climate Prediction Division.
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