To ensure the stability of our systems and to preserve resources for our operational activities (network, compute, etc.), access to the open-data portal is limited to 2000 simultaneous connections. This limit helps us guarantee reliable service for our operational users, especially during periods of high demand. For added reliability, the open-data is replicated across AWS, Azure, and Google Cloud. If you experience difficulties accessing this portal directly, you can also retrieve the data from these cloud platforms.
For streamlined programmatic access, use our Python API: ecmwf-opendata
Files
Name Date (UTC) Size ID
20261104060000-0h-waef-ef-sfc.grib204-11-2026 15:041.24 Gbytes250457843
20261104060000-0h-waef-ef-sfc.index04-11-2026 15:04141.58 Kbytes250457846
20261104060000-102h-waef-ef-sfc.grib204-11-2026 15:041.23 Gbytes250459398
20261104060000-102h-waef-ef-sfc.index04-11-2026 15:04142.85 Kbytes250459405
20261104060000-105h-waef-ef-sfc.grib204-11-2026 15:041.23 Gbytes250459482
20261104060000-105h-waef-ef-sfc.index04-11-2026 15:04142.85 Kbytes250459488
20261104060000-108h-waef-ef-sfc.grib204-11-2026 15:041.23 Gbytes250459421
20261104060000-108h-waef-ef-sfc.index04-11-2026 15:04142.85 Kbytes250459424
20261104060000-111h-waef-ef-sfc.grib204-11-2026 15:041.23 Gbytes250459473
20261104060000-111h-waef-ef-sfc.index04-11-2026 15:04142.85 Kbytes250459476
20261104060000-114h-waef-ef-sfc.grib204-11-2026 15:041.23 Gbytes250459518
20261104060000-114h-waef-ef-sfc.index04-11-2026 15:04142.85 Kbytes250459521
20261104060000-117h-waef-ef-sfc.grib204-11-2026 15:041.23 Gbytes250459567
20261104060000-117h-waef-ef-sfc.index04-11-2026 15:04142.85 Kbytes250459570
20261104060000-120h-waef-ef-sfc.grib204-11-2026 15:041.24 Gbytes250459512
20261104060000-120h-waef-ef-sfc.index04-11-2026 15:04142.85 Kbytes250459515
20261104060000-123h-waef-ef-sfc.grib204-11-2026 15:041.23 Gbytes250459637
20261104060000-123h-waef-ef-sfc.index04-11-2026 15:04142.85 Kbytes250459643
20261104060000-126h-waef-ef-sfc.grib204-11-2026 15:041.23 Gbytes250459537
20261104060000-126h-waef-ef-sfc.index04-11-2026 15:04142.85 Kbytes250459540
20261104060000-129h-waef-ef-sfc.grib204-11-2026 15:041.23 Gbytes250459590
20261104060000-129h-waef-ef-sfc.index04-11-2026 15:04142.85 Kbytes250459593
20261104060000-12h-waef-ef-sfc.grib204-11-2026 15:041.24 Gbytes250458132
20261104060000-12h-waef-ef-sfc.index04-11-2026 15:04142.22 Kbytes250458135
20261104060000-132h-waef-ef-sfc.grib204-11-2026 15:041.23 Gbytes250459716
20261104060000-132h-waef-ef-sfc.index04-11-2026 15:04142.85 Kbytes250459722
20261104060000-135h-waef-ef-sfc.grib204-11-2026 15:041.23 Gbytes250459618
20261104060000-135h-waef-ef-sfc.index04-11-2026 15:04142.85 Kbytes250459624
20261104060000-138h-waef-ef-sfc.grib204-11-2026 15:041.22 Gbytes250459608
20261104060000-138h-waef-ef-sfc.index04-11-2026 15:04142.85 Kbytes250459611
20261104060000-141h-waef-ef-sfc.grib204-11-2026 15:041.22 Gbytes250459698
20261104060000-141h-waef-ef-sfc.index04-11-2026 15:04142.85 Kbytes250459701
20261104060000-144h-waef-ef-sfc.grib204-11-2026 15:041.22 Gbytes250459669
20261104060000-144h-waef-ef-sfc.index04-11-2026 15:04142.85 Kbytes250459675
20261104060000-15h-waef-ef-sfc.grib204-11-2026 15:041.25 Gbytes250458302
20261104060000-15h-waef-ef-sfc.index04-11-2026 15:04142.22 Kbytes250458305
20261104060000-18h-waef-ef-sfc.grib204-11-2026 15:041.24 Gbytes250458195
20261104060000-18h-waef-ef-sfc.index04-11-2026 15:04142.22 Kbytes250458201
20261104060000-21h-waef-ef-sfc.grib204-11-2026 15:041.25 Gbytes250458435
20261104060000-21h-waef-ef-sfc.index04-11-2026 15:04142.22 Kbytes250458442
20261104060000-24h-waef-ef-sfc.grib204-11-2026 15:041.24 Gbytes250458464
20261104060000-24h-waef-ef-sfc.index04-11-2026 15:04142.22 Kbytes250458467
20261104060000-27h-waef-ef-sfc.grib204-11-2026 15:041.24 Gbytes250458365
20261104060000-27h-waef-ef-sfc.index04-11-2026 15:04142.22 Kbytes250458368
20261104060000-30h-waef-ef-sfc.grib204-11-2026 15:041.24 Gbytes250458582
20261104060000-30h-waef-ef-sfc.index04-11-2026 15:04142.22 Kbytes250458588
20261104060000-33h-waef-ef-sfc.grib204-11-2026 15:041.25 Gbytes250458640
20261104060000-33h-waef-ef-sfc.index04-11-2026 15:04142.22 Kbytes250458643
20261104060000-36h-waef-ef-sfc.grib204-11-2026 15:041.25 Gbytes250458541
20261104060000-36h-waef-ef-sfc.index04-11-2026 15:04142.22 Kbytes250458547
20261104060000-39h-waef-ef-sfc.grib204-11-2026 15:041.25 Gbytes250458621
20261104060000-39h-waef-ef-sfc.index04-11-2026 15:04142.22 Kbytes250458624
20261104060000-3h-waef-ef-sfc.grib204-11-2026 15:041.24 Gbytes250457123
20261104060000-3h-waef-ef-sfc.index04-11-2026 15:04141.58 Kbytes250457129
20261104060000-42h-waef-ef-sfc.grib204-11-2026 15:041.25 Gbytes250458559
20261104060000-42h-waef-ef-sfc.index04-11-2026 15:04142.22 Kbytes250458562
20261104060000-45h-waef-ef-sfc.grib204-11-2026 15:041.25 Gbytes250458811
20261104060000-45h-waef-ef-sfc.index04-11-2026 15:04142.22 Kbytes250458814
20261104060000-48h-waef-ef-sfc.grib204-11-2026 15:041.25 Gbytes250458817
20261104060000-48h-waef-ef-sfc.index04-11-2026 15:04142.22 Kbytes250458820
20261104060000-51h-waef-ef-sfc.grib204-11-2026 15:041.25 Gbytes250458856
20261104060000-51h-waef-ef-sfc.index04-11-2026 15:04142.22 Kbytes250458859
20261104060000-54h-waef-ef-sfc.grib204-11-2026 15:041.25 Gbytes250458784
20261104060000-54h-waef-ef-sfc.index04-11-2026 15:04142.22 Kbytes250458793
20261104060000-57h-waef-ef-sfc.grib204-11-2026 15:041.24 Gbytes250458830
20261104060000-57h-waef-ef-sfc.index04-11-2026 15:04142.22 Kbytes250458833
20261104060000-60h-waef-ef-sfc.grib204-11-2026 15:041.24 Gbytes250458912
20261104060000-60h-waef-ef-sfc.index04-11-2026 15:04142.22 Kbytes250458915
20261104060000-63h-waef-ef-sfc.grib204-11-2026 15:041.24 Gbytes250459055
20261104060000-63h-waef-ef-sfc.index04-11-2026 15:04142.22 Kbytes250459060
20261104060000-66h-waef-ef-sfc.grib204-11-2026 15:041.24 Gbytes250458937
20261104060000-66h-waef-ef-sfc.index04-11-2026 15:04142.22 Kbytes250458940
20261104060000-69h-waef-ef-sfc.grib204-11-2026 15:041.24 Gbytes250459041
20261104060000-69h-waef-ef-sfc.index04-11-2026 15:04142.22 Kbytes250459044
20261104060000-6h-waef-ef-sfc.grib204-11-2026 15:041.23 Gbytes250457610
20261104060000-6h-waef-ef-sfc.index04-11-2026 15:04141.58 Kbytes250457617
20261104060000-72h-waef-ef-sfc.grib204-11-2026 15:041.24 Gbytes250459303
20261104060000-72h-waef-ef-sfc.index04-11-2026 15:04142.22 Kbytes250459306
20261104060000-75h-waef-ef-sfc.grib204-11-2026 15:041.24 Gbytes250459145
20261104060000-75h-waef-ef-sfc.index04-11-2026 15:04142.22 Kbytes250459148
20261104060000-78h-waef-ef-sfc.grib204-11-2026 15:041.24 Gbytes250459359
20261104060000-78h-waef-ef-sfc.index04-11-2026 15:04142.22 Kbytes250459362
20261104060000-81h-waef-ef-sfc.grib204-11-2026 15:041.24 Gbytes250459269
20261104060000-81h-waef-ef-sfc.index04-11-2026 15:04142.22 Kbytes250459272
20261104060000-84h-waef-ef-sfc.grib204-11-2026 15:041.24 Gbytes250459281
20261104060000-84h-waef-ef-sfc.index04-11-2026 15:04142.22 Kbytes250459286
20261104060000-87h-waef-ef-sfc.grib204-11-2026 15:041.24 Gbytes250459183
20261104060000-87h-waef-ef-sfc.index04-11-2026 15:04142.22 Kbytes250459189
20261104060000-90h-waef-ef-sfc.grib204-11-2026 15:041.24 Gbytes250459180
20261104060000-90h-waef-ef-sfc.index04-11-2026 15:04142.22 Kbytes250459186
20261104060000-93h-waef-ef-sfc.grib204-11-2026 15:041.24 Gbytes250459235
20261104060000-93h-waef-ef-sfc.index04-11-2026 15:04142.22 Kbytes250459238
20261104060000-96h-waef-ef-sfc.grib204-11-2026 15:041.23 Gbytes250459342
20261104060000-96h-waef-ef-sfc.index04-11-2026 15:04142.22 Kbytes250459345
20261104060000-99h-waef-ef-sfc.grib204-11-2026 15:041.23 Gbytes250459440
20261104060000-99h-waef-ef-sfc.index04-11-2026 15:04142.22 Kbytes250459448
20261104060000-9h-waef-ef-sfc.grib204-11-2026 15:041.23 Gbytes250458236
20261104060000-9h-waef-ef-sfc.index04-11-2026 15:04141.58 Kbytes250458242
LICENCE.txt04-11-2026 15:04108 bytes250457850
README.txt04-11-2026 15:04226 bytes250457854
ECMWF Open Data Products: Terms of Use
Interface Help

A quick reference for the Data Portal interface.

Light / Dark theme

Click the  /  button in the top-right corner to switch between light and dark mode. Your preference is remembered across sessions.

Breadcrumb navigation

The bar below the header shows your current location (e.g. Home › folder › subfolder). Click any segment to jump directly to that level. The button on the right goes up one level.

Browsing files

Click a folder to navigate into it. Click a file to download it directly to your browser.

Search

Type in the Search files… box to filter the current directory listing in real time. The filter is case-insensitive and matches anywhere in the file name.

Page size

The selector next to the search box controls how many entries are shown per page. Use the pagination links at the bottom of the table to move between pages.

Column visibility

The dropdown lets you choose which columns are shown:
• Auto — hides columns automatically on narrow screens.
• All — always shows every column.
• Compact — hides the ID column.
• Custom — pick individual columns with checkboxes.

Sorting

Click any column header to sort the listing. Click again to reverse the order. A third click removes the sort.

Session badge

The badge next to the Traffic button shows the number of active protocol sessions (HTTPS, S3, FTP, SFTP/SCP) for your account vs. the configured maximum. A session is counted from authentication and released when it ends; short-lived operations such as individual S3 API calls open and close quickly, so the counter may fluctuate. The value is always at least 1 while you are logged in. The badge turns yellow when capacity is nearly reached and red when the limit is hit — new connections will be refused until an existing one closes.

Traffic

Click the Traffic button to open a chart showing active connections and upload/download rates for your account over the last 24 hours (times in UTC). Use it to identify quieter periods when the portal has less contention and transfers are likely to be faster.

Access Guide

Click the Access Guide button to open connection instructions for all available protocols (HTTPS, S3, FTP, SFTP/SCP). Each card provides ready-to-use commands with a copy button.

HTTPS:
S3:
FTP: :
SFTP: :22
Notice banners

Blue information banners and orange warning banners may appear above or below the file listing. These are messages set by the system administrator — read them before downloading.

About

Click the icon at the right end of the breadcrumb bar to open the About panel for version and build information.