Guadalcacín Reservoir — Current Water Temperature, Annual Trends and Forecast

This page provides information on the current water temperature in Guadalcacín Reservoir, trends, monthly ranges and the forecast for the coming days.

Guadalcacín Reservoir, Spain © El Pantera, GFDL

Current Water Temperature

27.5°C

Today

27.7°C

Yesterday

27.5°C

A Week Ago

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Water Temperature in Guadalcacín Reservoir today is 27.5°C.

Water Temperature: Daily Trends, Historical Records, and Forecast

✅ As of today, the minimum water temperature ranges from 79°F (26°C) to 82°F (28°C). This is very warm water, allowing for extended stays without any discomfort. Swimming in these conditions will be particularly enjoyable, making it the ideal temperature range for those who want to relax in the sea. Additionally, water in this temperature range is suitable for children and elderly people, as it is comfortable for prolonged stays. It is important to note that these swimming tips and recommendations apply only in good weather. When the air temperature is below 68°F (20°C), and sometimes even below 77°F (25°C), swimming can be unpleasant even with relatively high water temperatures.

Water Temperature Chart Over the Last 30 Days

From June 21 to July 22

Table of Daily Sea Temperature Data

Date	Current	Average	Forecast
JUL 15	27.5°C	23.0°C
JUL 16	27.5°C	23.0°C
JUL 17	27.1°C	23.0°C
JUL 18	27.1°C	23.0°C
JUL 19	27.2°C	23.0°C
JUL 20	27.2°C	23.0°C
JUL 21	27.7°C	23.0°C
JUL 22	27.5°C	23.0°C
JUL 23		23.0°C	27.3°C
JUL 24		23.0°C	27.1°C
JUL 25		23.0°C	26.8°C
JUL 26		23.0°C	26.6°C
JUL 27		23.0°C	26.4°C
JUL 28		23.0°C	26.2°C
JUL 29		23.0°C	25.9°C

* Current - Actual water temperature value

** Average - Average water temperature on this day in recent years

*** Forecast - Our water temperature forecast

Actual nearshore water temperatures may fluctuate by several degrees from the reported values, especially following heavy rainfall or extended periods of strong winds. Certain wind patterns can cause colder, deeper waters to rise and replace the sun-warmed surface water, leading to noticeable variations.

Our forecast is based on a proprietary mathematical model that considers real-time water temperature changes, historical trends, key weather patterns, wind strength and direction, and air temperature specific to each region. Additionally, we incorporate data from other resorts to enhance accuracy.

Monthly Water Temperature Range (Min, Max & Average)

Month	Min	Avg	Max
January	9°C	14°C	19°C
February	11°C	15°C	19°C
March	11°C	17°C	21°C
April	15°C	19°C	23°C
May	17°C	22°C	27°C
June	20°C	25°C	30°C
July	18°C	23°C	28°C
August	20°C	25°C	30°C
September	19°C	24°C	29°C
October	18°C	22°C	25°C
November	13°C	18°C	22°C
December	10°C	15°C	18°C

Guadalcacín Reservoir: Water Temperature by Location

🇪🇸 Spain > Andalusia

Guadalcacín Reservoir: Weather Forecast

July 23

° / °

partly cloudy

rain: 0% | wind:

July 24

° / °

partly cloudy

rain: 0% | wind:

July 25

° / °

clear sky

rain: 0% | wind:

July 26

° / °

clear sky

rain: 0% | wind:

July 27

° / °

partly cloudy

rain: 0% | wind:

Location & Local Information

The Embalse de Guadalcacín, near Jerez in Andalusia, shows marked seasonal variation in surface water temperature. In winter the reservoir’s surface commonly ranges from about 8–12 °C (46–54 °F), while spring temperatures rise to roughly 12–18 °C (54–64 °F) as air temperatures warm. During summer, surface waters can reach around 22–28 °C (72–82 °F) on warm spells, although deeper layers remain noticeably cooler; autumn typically brings a gradual cooling to roughly 15–22 °C (59–72 °F). These figures vary with specific weather patterns, wind, inflow from rivers, and depth, so local conditions can produce colder thermoclines and pockets of very cool water even in warm months.

Swimming at the Embalse de Guadalcacín is generally discouraged and in many cases officially restricted because the reservoir is an important water supply and irrigation source, and authorities limit direct bathing to protect water quality and infrastructure. Safety concerns—steep banks, sudden depth changes, submerged hazards, boat traffic and lack of lifeguards—also lead to prohibitions or strong advisories against unsupervised swimming. Informal bathing sometimes occurs along accessible shores in summer, but visitors should follow local signage and regulations and prefer designated recreational sites if available to ensure both safety and the protection of the reservoir’s water resources.

Nearby Lakes

Frequently Asked Questions

What is the current water temperature in Guadalcacín Reservoir?

Water Temperature in Guadalcacín Reservoir today is 27.5°C.

What is the water temperature in Guadalcacín Reservoir during the summer months?

The water temperature in Guadalcacín Reservoir in summer fluctuates in the range of 18°C - 30°C.

Is it possible to swim in Guadalcacín Reservoir (Spain) and what are the possibilities for this?

Swimming in the Guadalcacín Reservoir is generally not permitted due to safety and water-supply protection, although authorized water-sports, organized events or specific designated zones approved by local authorities may provide supervised or alternative recreational opportunities, so check current local regulations before planning to enter the water.