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World Climate
Climate System Monitoring
El Niño Monitoring
NWP Model Prediction
Global Warming
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Press release

What are WMO RCCs

RCC Functions

Latest Updates

World Climate

Updated: 29 Sep 2023

Climate System Monitoring

Updated: 15 Sep 2023

El Niño Monitoring

Updated: 11 Sep 2023

Monthly Discussion

Updated: 19 Sep 2023

Global Warming

Updated: 14 Sep 2023

Climate in Japan

Updated: 15 Sep 2023

Stratospheric circulation

Main Products


iTacs, Interactive Tool for Analysis of the Climate System, is a web-based application to assist NMHSs to analyses extreme climate events and to monitor climate status.

WMC Tokyo

Products of long-range forecast from World Meteorological Centre (WMC) Tokyo are available. These products are based on JMA's ensemble prediction system.

Monthly Discussion on Seasonal Climate Outlook

This is intended to assist NMHSs in the Asia-Pacific region in interpreting WMC Tokyo's three-month prediction and warm/cold season prediction products.

El Niño Monitoring

"El Niño Outlook" consists of a diagnosis of current condition and prediction of El Niño/Southern Oscillation. This is issued every month around 10th.


The ClimatView tool enables viewing and downloading of monthly world climate data, including monthly temperature/precipitation statistics and 30-year climate normals.

TCC News

TCC News, a quarterly newsletter from Tokyo Climate Center, acquaints with significant climate disasters and events, forecaster's commentaries on seasonal outlooks, besides topics on the renewal and the usage of TCC products.

What's New                     RSS

28 September 2023

    - TCC and GPC Tokyo representatives’ visit to MSS
    - TCC contributions to the Report on the States of the Climate in Asia 2022
    - Climate characteristics and factors behind heavy rainfall during the Baiu season in 2023 and extremely high temperatures from mid-July onward
    - Record global mean surface temperature based on JRA-3Q reanalysis

1 August 2023

13 June 2023

    - El Niño Outlook (May - November 2023)
    - JMA's Seasonal Numerical Ensemble Prediction for Boreal Summer 2023
    - Summary of the 2022/2023 Asian Winter Monsoon
    - Commencement of JRA-3Q utilization in diagnosis products and iTacs
    - TCC and WMC Tokyo co-contributions to Regional Climate Outlook Forums

30 May 2023

    - At the same time, the sea surface temperature dataset was changed from COBE-SST to COBE-SST2 and MGDSST (based on different analysis methods) as well as the oceanic dataset was changed from MOVE-G2 to MOVE-G3.

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Tokyo Climate Center, Climate Prediction Division.
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