Gergal reservoir

Sevilla · Andalucía

Guadalquivir basin Reservoirs in Andalucía

Province: Sevilla
Basin: Guadalquivir
River: Huelva
Dam: Arch-gravity · 1979

68.6%

Current level

24 hm³

Stored water

35 hm³

Total capacity

+1.0 hm³

Weekly change

+6.0 hm³

Vs. 2025

0.0 hm³

Vs. 10-year mean

Historical trend

Stored water volume · hm³

hm³

Weekly summary

The Gergal reservoir (embalse de Gergal), in the Guadalquivir basin and linked to Guillena, Sevilla and Andalucía, is at 68.6% of its capacity, holding 24 hm³ against a maximum capacity of 35 hm³. It is currently rising, by 1.0 hm³ this week.

Compared with 2025: above (+17.1 points). Compared with the recent historical mean: in line with that level.

Its main uses include water supply.

References
Reference	Level	Difference
Previous week	65.7%	+2.9 pts
Same week 2025	51.4%	+17.1 pts
10-year mean	68.6%	0.0 pts

Technical data

Characteristics of the dam and its recorded uses.

Characteristics

Municipality: Guillena
River: Huelva
Dam type: Arch-gravity
Year built: 1979
Surface area: 252 ha
Upstream: Cala
Downstream: No

Recorded uses

Water supply
Fishing

Not recorded: irrigation, electricity, industrial, boating, swimming, picnic, restaurants.

Source: MITECO Inventory of Dams and Reservoirs.

Data: MITECO · AEMET