ECMWF Precipitation Maps – Rain & Snow Forecast

StiriMeteo

ECMWF OPEN DATA · STIRIMETEO

ECMWF Global Precipitation Maps

The ECMWF global precipitation forecast brings rain and snow accumulation into focus across the World, continents and regions. Compare the next three days, days four to six, or the full six-day outlook.

World + selected areaThree forecast periodsComplete branded maps

ECMWF precipitation forecast maps

Move from a fixed global perspective to your chosen continent or canonical region. Every map is a complete forecast product, with its own rain or snow legend, model run, source and exact validity window.

FORECAST VIEW

Choose how to explore

GLOBAL PERSPECTIVE

World forecast

One fixed global view, independent of your area selection.

WORLD
WORLD FORECAST

World · 0–144h

Preparing validated forecast…
WORLD FORECAST

World · 0–72h

Preparing validated forecast…
WORLD FORECAST

World · 72–144h

Preparing validated forecast…
YOUR AREA

Selected area forecast

Choose a continent or a more focused canonical region.

Preparing Europe forecast…

SELECTED AREA

Europe · 0–144h

Preparing validated forecast…
SELECTED AREA

Europe · 0–72h

Preparing validated forecast…
SELECTED AREA

Europe · 72–144h

Preparing validated forecast…
A DAILY RHYTHM

Approximate publication schedule

New ECMWF precipitation maps are generated four times daily. Regions are published progressively as processing is completed.

Times shown in UTC.
ECMWF CYCLE

00Z

  1. WEATHER processing start
  2. World + Europe
  3. North America
  4. Asia
  5. Africa + Oceania + Antarctica
  6. Full update
ECMWF CYCLE

06Z

  1. WEATHER processing start
  2. World + Europe
  3. North America
  4. Asia
  5. Africa + Oceania + Antarctica
  6. Full update
ECMWF CYCLE

12Z

  1. WEATHER processing start
  2. World + Europe
  3. North America
  4. Asia
  5. Africa + Oceania + Antarctica
  6. Full update
ECMWF CYCLE

18Z

  1. WEATHER processing start next day
  2. World + Europe next day
  3. North America next day
  4. Asia next day
  5. Africa + Oceania + Antarctica next day
  6. Full update next day

Typical timingFirst regional maps are normally available about 20 minutes after processing begins; a complete update is normally available in about 1 hour 15 minutes.

Publication times are estimates and may vary with ECMWF data availability, processing duration, or technical delays. The latest successfully validated maps remain available until a newer update is ready.

READING THE FORECAST

Understanding these maps

These are accumulated ECMWF precipitation maps. The displayed precipitation total uses tp (total precipitation water equivalent): values in metres are multiplied by 1,000 and shown in millimetres. Snow uses sf (snowfall water equivalent), converted to estimated fresh/new snow depth in centimetres by the frozen 10:1 water-equivalent-to-snow method. The 0–72h map covers the first three forecast days; 72–144h covers the following three; 0–144h covers the complete six-day accumulation. Each total applies to its interval and does not identify the exact time precipitation occurs within it.

0–72hFirst three forecast days
72–144hFollowing three forecast days
0–144hComplete six-day window

World gives a fixed global perspective. The continent and canonical-region selectors move to progressively more focused views. Each complete raster carries its own ECMWF model and run information, source, and exact validity period.

A multi-day total does not tell you exactly when within that interval rain or snow occurs. Local conditions and forecasts can differ; use official warnings and local authoritative information for safety-critical decisions.

FORECAST PROVENANCE

Source, credits and use

ECMWF Open Data is the forecast source. StiriMeteo processes and presents the relevant forecast product locally as complete branded maps for general weather analysis.

Disclaimer

These maps support general weather analysis and information. Local conditions and forecasts can differ; consult official warnings for safety-critical decisions.

ECMWF Open Data · StiriMeteo local forecast presentation. Each map carries its own run and validity details.