- Created by Helene Blanchonnet, last modified by Emma Pidduck on May 12, 2026
All times on this page are UTC. Delivery windows show when the first and last step of each forecast are pushed to your server — individual steps arrive progressively within the window.
This schedule applies where Pre-Schedule Delivery has not been configured. See Pre-Schedule Delivery for earlier delivery options.
Set I - Control forecast (formerly HRES) and Analysis Data (15-days)
Subscription identifiers: class=od, stream=oper
I-i: Atmospheric fields
| Forecast run | Steps | Delivery window |
| 00 UTC |
|
|
| 06 UTC |
|
|
| 12 UTC |
|
|
| 18 UTC |
|
|
| Analysis run | Delivery |
|---|---|
| 00 UTC | 05:40 |
| 06 UTC | 11:40 |
| 12 UTC | 17:40 |
| 18 UTC | 23:40 |
| Thermofeel run | Delivery |
|---|---|
| 00 UTC | 08:30 |
| 12 UTC | 20:30 |
I-ii: Time series of weather parameters (Post-processed Products)
| Run | Delivery |
| 00 UTC based | 06:55 |
| 12 UTC based | 18:55 |
I-iii: Tropical cyclones (Post-processed Products)
| Run | Delivery |
| 00 UTC based | 06:55 |
| 06 UTC based | 12:12 |
| 12 UTC based | 18:55 |
| 18 UTC based | 00:12 |
Set II - Control forecast wave (formerly HRES-WAM) and Analysis Data (15-days)
Subscription identifiers: class=od, stream=wave
| Forecast run | Steps | Delivery window |
| 00 UTC |
|
|
| 06 UTC |
|
|
| 12 UTC |
|
|
| 18 UTC |
|
|
Set III - Atmospheric model Ensemble 15-day forecast (ENS)
Subscription identifiers: class=od, stream=enfo
The 06 UTC and 18 UTC runs are capped at step 144 (Day 6). Rows highlighted below are produced by the 00 UTC and 12 UTC runs only.
| 00 UTC | 06 UTC | 12 UTC | 18 UTC | |
| Forecast Day 0 | 06:40 | 12:40 | 18:40 | 00:40 |
| Forecast Day 1 | 06:44 | 12:44 | 18:44 | 00:44 |
| Forecast Day 2 | 06:48 | 12:48 | 18:48 | 00:48 |
| Forecast Day 3 | 06:52 | 12:52 | 18:52 | 00:52 |
| Forecast Day 10 | 07:20 | 19:20 | ||
| Forecast Day 15 | 07:40 | 19:40 | ||
| Derived products Step 0 to 240 | 07:41 | 19:41 | ||
| Derived products Step 246 to 360 | 08:01 | 20:01 |
| Thermofeel run | Delivery |
| 00 UTC | 09:30 |
| 12 UTC | 21:30 |
Set IV - Ocean Wave Model Ensemble 15-day forecast (ENS-WAM)
Subscription identifiers: class=od, stream=waef
IV-i: Wave fields
| 00 UTC run | 12 UTC run | |
| Forecast Day 0 | 07:00 | 19:00 |
| Forecast Day 10 | 07:40 | 19:40 |
| Forecast Day 15 | 08:00 | 20:00 |
| Derived products Step 0 to 240 | 07:41 | 19:41 |
| Derived products Step 246 to 360 | 08:01 | 20:01 |
| 00 UTC run | 12 UTC run | |
| Forecast Day 0 | 07:00 | 19:00 |
| Forecast Day 10 | 07:40 | 19:40 |
| Forecast Day 15 | 08:00 | 20:00 |
| Derived products Step 0 to 240 | 07:41 | 19:41 |
| Derived products Step 246 to 360 | 08:01 | 20:01 |
| 00 UTC run | 12 UTC run | |
| Forecast Day 0 | 07:00 | 19:00 |
| Forecast Day 10 | 07:40 | 19:40 |
| Forecast Day 15 | 08:00 | 20:00 |
| Derived products Step 0 to 240 | 07:41 | 19:41 |
| Derived products Step 246 to 360 | 08:01 | 20:01 |
Set V - Seasonal forecast (SEAS5)
Subscription identifiers: class=od, stream=mmsf, method=1
File naming is supported in LEGACY format only for this set.
V-i: 7-month forecast
| Batch | Delivery |
| Forecast months 1–7 | 5th of each month, 12:00 UTC |
V-ii: 13-month forecast
Subscription identifiers: class=od, stream=mmsf, method=3
File naming is supported in ECMWF and WMO formats only for this dataset.
| Batch | Delivery |
| Forecast months 8–13 | 5th of each quarter, 12:00 UTC (February, May, August, November) |
Set VI - Sub-seasonal forecast products (ENS extended)
Subscription identifiers: class=od, stream=eefo (wave: stream=weef)
| Product | Delivery |
| Real-time forecast | 20:00 |
| Re-forecast | 21:00 |
Set IX - AIFS deterministic forecast
Subscription identifiers: class=ai, stream=oper
AIFS deterministic products are disseminated in line with the existing IFS schedule (Set I-i).
| Run | Steps | Delivery window |
| 00 UTC | 0 to 360 by 6 | 05:45 → 07:34 |
| 06 UTC | 0 to 360 by 6 | 11:45 → 13:34 |
| 12 UTC | 0 to 360 by 6 | 17:45 → 19:34 |
| 18 UTC | 0 to 360 by 6 | 23:45 → 01:34 |
Set X - AIFS ensemble forecast
Subscription identifiers: class=ai, stream=enfo
AIFS ensemble products are disseminated in line with the existing IFS schedule (Set III).
The 06 UTC and 18 UTC runs are capped at step 144 (Day 6). Rows highlighted below are produced by the 00 UTC and 12 UTC runs only.
| Batch | 00 UTC | 06 UTC | 12 UTC | 18 UTC |
| Forecast Day 0 | 06:40 | 12:40 | 18:40 | 00:40 |
| Forecast Day 1 | 06:44 | 12:44 | 18:44 | 00:44 |
| Forecast Day 2 | 06:48 | 12:48 | 18:48 | 00:48 |
| Forecast Day 3 | 06:52 | 12:52 | 18:52 | 00:52 |
| Forecast Day 10 | 07:20 | 19:20 | ||
| Forecast Day 15 | 07:40 | 19:40 | ||
| Derived products Step 0 to 240 | 07:41 | 19:41 | ||
| Derived products Step 246 to 360 | 08:01 | 20:01 |
Set XII - AIFS Single wave forecast (deterministic)
Subscription identifiers: class=ai, stream=wave
AIFS Single wave products follow the same schedule as the AIFS deterministic forecast (Set IX).
| Run | Steps | Delivery window |
| 00 UTC | 0 to 360 by 6 | 05:45 → 07:34 |
| 06 UTC | 0 to 360 by 6 | 11:45 → 13:34 |
| 12 UTC | 0 to 360 by 6 | 17:45 → 19:34 |
| 18 UTC | 0 to 360 by 6 | 23:45 → 01:34 |
Set XIII - AIFS Ensemble wave forecast
Subscription identifiers: class=ai, stream=waef
AIFS Ensemble wave products follow the same schedule as the AIFS ensemble forecast (Set X). Timings are provisional — please verify before publishing.
The 06 UTC and 18 UTC runs are capped at step 144 (Day 6). Rows highlighted below are produced by the 00 UTC and 12 UTC runs only.
| Batch | 00 UTC | 06 UTC | 12 UTC | 18 UTC |
| Forecast Day 0 | 06:40 | 12:40 | 18:40 | 00:40 |
| Forecast Day 1 | 06:44 | 12:44 | 18:44 | 00:44 |
| Forecast Day 2 | 06:48 | 12:48 | 18:48 | 00:48 |
| Forecast Day 3 | 06:52 | 12:52 | 18:52 | 00:52 |
| Forecast Day 10 | 07:20 | 19:20 | ||
| Forecast Day 15 | 07:40 | 19:40 | ||
| Derived products Step 0 to 240 | 07:41 | 19:41 | ||
| Derived products Step 246 to 360 | 08:01 | 20:01 |
Set XI - CAMS Global Atmospheric Composition Forecast
| Run | Steps | Delivery |
| 00 UTC | 0 to 90 by 1, 93 to 120 by 3 | 10:00 |
| 12 UTC | 0 to 90 by 1, 93 to 120 by 3 | 22:00 |
Real-time data are pushed to users' servers on the schedule shown. If you need to re-transmit files, log in to ECPDS.
Create a support ticket in our Support portal
Problem receiving Real-time data
Want to find a solution from the community? Check out the ECMWF Forum.