Apartadura Reservoir — Current Water Temperature, Annual Trends and Forecast

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

Covão dos Conchos Lake, Portugal © By larahcv, CC0

Current Water Temperature

23.5°C

Today

23.6°C

Yesterday

24.4°C

A Week Ago

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Water Temperature in Apartadura Reservoir today is 23.5°C.

Water Temperature: Daily Trends, Historical Records, and Forecast

✅ As of today, the minimum water temperature ranges from 75°F (23°C) to 79°F (26°C). This is a very comfortable temperature for swimming, and many people can enjoy prolonged stays in the water without feeling cold. The water is pleasantly warm, making it ideal for relaxation and water sports. This temperature range is particularly popular among tourists, as it combines comfort and safety for health. 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 August 26 to September 26

Table of Daily Sea Temperature Data

Date	Current	Average	Forecast
SEP 19	24.4°C	24.0°C
SEP 20	24.3°C	24.0°C
SEP 21	23.6°C	24.0°C
SEP 22	23.5°C	24.0°C
SEP 23	23.4°C	24.0°C
SEP 24	23.3°C	24.0°C
SEP 25	23.6°C	24.0°C
SEP 26	23.9°C	24.0°C
SEP 27		24.0°C	23.3°C
SEP 28		24.0°C	23.1°C
SEP 29		24.0°C	22.8°C
SEP 30		24.0°C	22.6°C
OCT 1		19.0°C	22.4°C
OCT 2		19.0°C	22.2°C
OCT 3		19.0°C	21.9°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	5°C	9°C	12°C
February	5°C	9°C	12°C
March	8°C	12°C	15°C
April	9°C	13°C	18°C
May	10°C	15°C	21°C
June	17°C	22°C	27°C
July	19°C	25°C	30°C
August	20°C	25°C	30°C
September	19°C	24°C	29°C
October	14°C	19°C	22°C
November	9°C	14°C	19°C
December	6°C	10°C	14°C

Apartadura Reservoir: Water Temperature by Location

🇵🇹 Portugal > Portalegre District

Apartadura Reservoir: Weather Forecast

September 27

° / °

overcast

rain: 3% | wind:

September 28

° / °

slight thunderstorm

rain: 43% | wind:

September 29

° / °

slight rain

rain: 27% | wind:

September 30

° / °

slight rain showers

rain: 72% | wind:

October 1

° / °

slight rain showers

rain: 58% | wind:

Location & Local Information

Albufeira da Barragem da Apartadura, in the Portalegre District of Portugal, is an inland reservoir whose water temperatures follow a clear seasonal pattern typical of Alentejo water bodies. In winter the surface temperatures commonly sit between about 8–14 °C (46–57 °F), rising in spring and autumn to roughly 12–20 °C (54–68 °F). During the warmest months of July and August the reservoir can warm to around 20–26 °C (68–79 °F), and on particularly hot spells local readings may exceed 26 °C (79 °F). These figures reflect surface conditions; deeper water remains considerably cooler year-round, and wind, inflows and recent rainfall can cause short-term variability.

Swimming at Barragem da Apartadura is subject to local rules and practical considerations. Many Portuguese reservoirs are not officially designated for bathing because they serve as water supply sources or have safety risks such as changing water levels, submerged structures and poor visibility; for these reasons swimming is often discouraged or formally restricted. Informal bathing may occur when conditions appear calm, but authorities may prohibit it to protect water quality and public safety. Visitors should therefore look for posted signage and consult the municipal or reservoir authorities before entering the water.

Nearby Lakes

Frequently Asked Questions

What is the current water temperature in Apartadura Reservoir?

Water Temperature in Apartadura Reservoir today is 23.5°C.

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

The water temperature in Apartadura Reservoir in summer fluctuates in the range of 17°C - 30°C.

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

Yes — swimming is possible in parts of the Apartadura Reservoir where local rules and water quality permit, and visitors can enjoy open-water bathing and non-motorized activities like kayaking or paddleboarding from informal lakeside access, but facilities and safety measures vary so check local signage and restrictions and swim at your own risk.