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Latest Updates
World Climate
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Updated: 15 Dec 2025
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Climate System Monitoring
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Updated: 15 Dec 2025
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El Niño Monitoring
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Updated: 10 Dec 2025
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Monthly Discussion
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Updated: 27 Nov 2025
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Global Warming
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Updated: 15 Dec 2025
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Climate in Japan
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Updated: 17 Feb 2025
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Stratospheric circulation
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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.
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Products of long-range forecast from World Meteorological Centre (WMC) Tokyo are available.
These products are based on JMA's ensemble prediction system.
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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.
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"El Niño Outlook" consists of a diagnosis of current condition and
prediction of El Niño/Southern Oscillation. This is issued every month around 10th.
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The ClimatView tool enables viewing and downloading of monthly world climate
data, including monthly temperature/precipitation statistics and 30-year
climate normals.
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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.
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This product is intended to assist NMHSs in the Asia-Pacific region. Only registered NMHSs can access this product.
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What's New
» Press release
18 December 2025
28 November 2025
- JMA's Seasonal Numerical Ensemble Prediction for Boreal Winter 2025/2026
- Summary of the 2025 Asian Summer Monsoon
- Status of the Antarctic Ozone Hole in 2025
- Status of the Arctic Sea Ice in 2025
- Factors behind record-high temperatures over Japan in summer 2025 and dry conditions in July, and the large-scale atmospheric circulation behind heavy rainfall in the first half of August
- TCC and WMC Tokyo co-contributions to Regional Climate Outlook Forums in Asia
30 September 2025
22 August 2025
- Climate Change in Japan 2025
- Upgrade of Reports on Global Extreme Climate Events
- HTML Upgrade for Monthly and Seasonal Highlights on the Climate System
- TCC contributions to the Report on the States of the Climate in Asia 2024
- Upgrade Plan of the JMA's Seasonal Ensemble Prediction System
20 June 2025
- JMA's Seasonal Numerical Ensemble Prediction for Boreal Summer 2025
- Summary of the 2024/2025 Asian Winter Monsoon
- TCC and WMC Tokyo co-contributions to Regional Climate Outlook Forums in Asia
» Previous news
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Related Links
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Regional Climate Centers
Regional Climate Outlook Forum (RCOF)
WMO RA II Climate Services
Japan Meteorological Agency
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