← Spain
Critical—

Castilseras

Guadiana

Capacity

5 hm³

Operator

Guadiana

0.0% full

Current fill

0.0%
Critical

vs 7 days ago

N/A

vs 1 year ago

N/A

7-day trend

N/A

Drought context

Storage vs October average

0%of normal

0.0% full on 2026-10-19, against an average of 70.6% for October across 9 years of readings (-70.6 points).

Rain over the last three months · 11 October 2026

Near normal

In the three months to 11 October 2026 the area around Castilseras had rain close to normal for the season. Rainfall compared with the long-run record for the same season at this point (Copernicus Global Drought Observatory, SPI-3 index −0.71). Rain, not storage.

EU drought indicator · 11 October 2026

Recoveryvegetation recovering

The European Drought Observatory's combined reading of rain, soil moisture and vegetation at this point. Watch means rain has been short, Warning that the soil has dried out, Alert that vegetation is visibly stressed; Recovery means the shortfall is easing. Ground conditions, not the reservoir's storage. Spain drought figures →

Technical specifications

Total capacity5 hm³
Primary use—
OperatorGuadiana
River basinGuadiana
Data source:embalses.net·Last reading: 2026-10-19

About Castilseras

As of October 19, 2026, Castilseras is filled to 0.0% of its total capacity, holding 0 hm³ of water out of a maximum 5 hm³. At this level the reservoir is critically low.

No reading from about a week earlier is on file, so the 7-day change is not available.

Across the readings we hold for Castilseras — 419 data points between April 21, 2009 and October 19, 2026 — the level has ranged from a low of 0.0% (October 19, 2026) to a high of 100.0% (May 26, 2009). On average the reservoir is fullest around January and at its lowest around June.

It is operated by Guadiana. It lies within the Guadiana basin.

Key facts

Current fill level
0.0% of total capacity
Water stored
0 hm³
Total capacity
5 hm³
7-day change
N/A
River basin
Guadiana
Operator
Guadiana
Last updated
October 19, 2026

Recent readings

DateFill levelVolume (hm³)
19 Oct 20260.0%0
18 Apr 2017100.0%5
11 Apr 2017100.0%5
4 Apr 2017100.0%5
28 Mar 2017100.0%5
21 Mar 2017100.0%5
14 Mar 2017100.0%5
7 Mar 2017100.0%5
28 Feb 2017100.0%5
21 Feb 2017100.0%5
14 Feb 2017100.0%5
7 Feb 2017100.0%5