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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: 14 Jan 2022

Climate System Monitoring

Updated: 14 Jan 2022

El Niño Monitoring

Updated: 11 Jan 2022

Monthly Discussion

Updated: 24 Dec 2021

Global Warming

Updated: 14 Jan 2022

Climate in Japan

Updated: 14 Jan 2022

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 December 2021

22 December 2021

8 December 2021

    - El Niño Outlook (November 2021 - May 2022)
    - JMA's Seasonal Numerical Ensemble Prediction for Boreal Winter 2021/2022
    - Summary of the 2021 Asian Summer Monsoon
    - Climate characteristics and factors behind record-heavy rain in Japan in August 2021
    - Status of the Antarctic Ozone Hole in 2021
    - Status of the Arctic Sea Ice in 2021
    - TCC and WMC Tokyo co-contributions to Regional Climate Outlook Forums
    - TCC contributions to the Report on the States of the Climate in Asia 2020

24 September 2021

9 September 2021

    - JMA's New Climatological Normals for 1991-2020
    - JMA's Seasonal Ensemble Prediction System Upgrade Plan

18 June 2021

    - El Niño Outlook (June - December 2021)
    - JMA's Seasonal Numerical Ensemble Prediction for Boreal Summer 2021
    - Summary of the 2020/2021 Asian Winter Monsoon
    - TCC and WMC Tokyo co-contributions to Regional Climate Outlook Forums

14 May 2021

21 April 2021

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Tokyo Climate Center, Climate Prediction Division.
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