Vigia Reservoir — Current Water Temperature, Annual Trends and Forecast

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

Covão dos Conchos Lake, Portugal © By larahcv, CC0

Current Water Temperature

23.0°C

Today

23.6°C

Yesterday

24.6°C

A Week Ago

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Water Temperature in Vigia Reservoir today is 23°C.

Water Temperature: Daily Trends, Historical Records, and Forecast

✅ As of today, the minimum water temperature ranges from 68°F (20°C) to 74°F (23°C). The water is warm and pleasant for swimming, and in this range, one can stay in the water for extended periods without the risk of hypothermia. This is the ideal temperature for relaxation, swimming, and water sports. Families with children, as well as outdoor enthusiasts, will enjoy swimming and time spent in the water. For most people, this is the optimal temperature for a comfortable beach experience. 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 September 10 to October 11

Table of Daily Sea Temperature Data

Date	Current	Average	Forecast
OCT 4	24.4°C	18.0°C
OCT 5	24.2°C	18.0°C
OCT 6	24.0°C	18.0°C
OCT 7	23.8°C	18.0°C
OCT 8	23.6°C	18.0°C
OCT 9	23.6°C	18.0°C
OCT 10	23.6°C	18.0°C
OCT 12		18.0°C	22.8°C
OCT 13		18.0°C	22.5°C
OCT 14		18.0°C	22.3°C
OCT 15		18.0°C	22.0°C
OCT 16		18.0°C	21.8°C
OCT 17		18.0°C	21.5°C
OCT 18		18.0°C	21.3°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	6°C	10°C	13°C
February	6°C	10°C	14°C
March	6°C	11°C	16°C
April	10°C	14°C	19°C
May	14°C	20°C	25°C
June	18°C	24°C	29°C
July	21°C	26°C	32°C
August	22°C	27°C	33°C
September	20°C	25°C	30°C
October	13°C	18°C	21°C
November	10°C	14°C	18°C
December	8°C	12°C	15°C

Vigia Reservoir: Water Temperature by Location

🇵🇹 Portugal > Évora District

Vigia Reservoir: Weather Forecast

October 11

° / °

overcast

rain: 0% | wind:

October 12

° / °

overcast

rain: 0% | wind:

October 13

° / °

mainly clear

rain: 0% | wind:

October 14

° / °

overcast

rain: 0% | wind:

October 15

° / °

overcast

rain: 0% | wind:

Location & Local Information

The Albufeira da Barragem da Vigia, in Évora District, experiences clear seasonal variation in surface water temperature. In summer (June–August) surface temperatures commonly range from about 20–26 °C (68–79 °F), and on hot, calm days can reach around 28 °C (82 °F). Spring (March–May) waters are cooler, typically 12–18 °C (54–64 °F), while autumn (September–November) sees a gradual decline with temperatures around 15–22 °C (59–72 °F). Winter (December–February) is the coldest period, when surface readings often fall between 8–14 °C (46–57 °F). These figures refer to surface layers; deeper zones remain noticeably colder year‑round, and temperature can vary with weather, inflows and reservoir level.

Swimming at Albufeira da Barragem da Vigia is practiced by visitors but is not uniformly regulated as a supervised bathing area; whether swimming is allowed depends on local rules, posted signage and water quality monitoring. Authorities sometimes restrict access for safety reasons — submerged hazards, steep banks, sudden depth changes, variable currents from dam operations, and the absence of lifeguards. Water quality may also be occasionally unsuitable for bathing after heavy rains or agricultural runoff. For those considering a swim, summer temperatures make the lake most comfortable, but it is advisable to check local information and exercise caution, as swimming is often at one’s own risk.

Nearby Lakes

Frequently Asked Questions

What is the current water temperature in Vigia Reservoir?

Water Temperature in Vigia Reservoir today is 23°C.

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

The water temperature in Vigia Reservoir in summer fluctuates in the range of 18°C - 33°C.

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

Yes — swimming is possible in Vigia Reservoir, typically done informally from accessible banks or from small craft such as kayaks and paddleboards, but there are usually no lifeguards or marked bathing areas so swimmers should verify local access and water-quality rules and watch for submerged hazards and boat traffic.