Negratín Reservoir — Current Water Temperature, Annual Trends and Forecast

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

Negratín Reservoir, Spain © CC BY-SA 3.0, GFDL

Current Water Temperature

29.4°C

Today

27.5°C

Yesterday

26.7°C

A Week Ago

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Water Temperature in Negratín Reservoir today is 29.4°C.

Water Temperature: Daily Trends, Historical Records, and Forecast

✅ As of today, the minimum water temperature is above 82°F (28°C). This is very warm water, which may feel almost hot to most people. Swimming in such conditions is perfect for those seeking relaxation and comfort in the water. These waters are often preferred for relaxation in hot weather, as the water temperature does not cool the body significantly. However, it is important to remember that in such warm waters, caution is necessary, as prolonged exposure without rest can lead to overheating. 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	26.7°C	28.0°C
JUL 16	26.7°C	28.0°C
JUL 17	26.9°C	28.0°C
JUL 18	26.9°C	28.0°C
JUL 19	26.9°C	28.0°C
JUL 20	26.9°C	28.0°C
JUL 21	27.5°C	28.0°C
JUL 22	27.5°C	28.0°C
JUL 23		28.0°C	29.3°C
JUL 24		28.0°C	29.3°C
JUL 25		28.0°C	29.2°C
JUL 26		28.0°C	29.1°C
JUL 27		28.0°C	29.1°C
JUL 28		28.0°C	29.0°C
JUL 29		28.0°C	28.9°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	4°C	8°C	11°C
February	7°C	11°C	14°C
March	9°C	13°C	17°C
April	11°C	15°C	19°C
May	14°C	20°C	25°C
June	20°C	27°C	34°C
July	23°C	28°C	34°C
August	23°C	28°C	34°C
September	23°C	28°C	34°C
October	13°C	18°C	21°C
November	9°C	14°C	18°C
December	7°C	11°C	14°C

Negratín Reservoir: Water Temperature by Location

🇪🇸 Spain > Andalusia

Negratín Reservoir: Weather Forecast

July 23

° / °

partly cloudy

rain: 0% | wind:

July 24

° / °

overcast

rain: 0% | wind:

July 25

° / °

clear sky

rain: 0% | wind:

July 26

° / °

mainly clear

rain: 0% | wind:

July 27

° / °

overcast

rain: 3% | wind:

Location & Local Information

The Embalse del Negratín, in Andalusia, is a large earthen reservoir whose water temperature varies considerably through the year because of depth, inflow, and regional climate. In winter the surface can drop to roughly 6–12 °C (43–54 °F), while spring and autumn typically see temperatures in the 12–20 °C (54–68 °F) band as the water responds to milder air. Peak summer surface temperatures commonly reach about 20–28 °C (68–82 °F), though shallow bays warm faster and deep zones remain cooler. Local weather, reservoir releases, and recent rainfall can all shift these averages by a few degrees.

Swimming at Negratín is common but not uniformly regulated; there are few lifeguarded or officially designated bathing areas, so formal permission and facilities may be limited. Authorities often restrict or discourage swimming in reservoirs for safety reasons — sudden depth changes, submerged hazards, boat traffic and cold-water shock — and sometimes to protect water quality for supply and ecology. As a result, visitors who choose to swim should check current local rules and signage, take safety precautions, and be aware that conditions can change quickly despite generally pleasant summer temperatures in shallow zones.

Nearby Lakes

Frequently Asked Questions

What is the current water temperature in Negratín Reservoir?

Water Temperature in Negratín Reservoir today is 29.4°C.

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

The water temperature in Negratín Reservoir in summer fluctuates in the range of 20°C - 34°C.

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

Yes — you can swim in parts of the Negratín Reservoir, where people commonly bathe from accessible shores and practice non-motorized water sports like kayaking and paddleboarding, but there are no formal lifeguarded beaches so you should verify local regulations, water quality and safety conditions before entering.