Albufeira de Vale de Gaio Lake — Current Water Temperature, Annual Trends and Forecast

This page provides information on the current water temperature in Albufeira de Vale de Gaio Lake, trends, monthly ranges and the forecast for the coming days.

Covão dos Conchos Lake, Portugal © By larahcv, CC0

Current Water Temperature

19.5°C

Today

19.8°C

Yesterday

21.6°C

A Week Ago

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Water Temperature in Albufeira de Vale de Gaio Lake today is 19.5°C.

Water Temperature: Daily Trends, Historical Records, and Forecast

⚠️ As of today, the minimum water temperature ranges from 65°F (18°C) to 68°F (20°C). This is already quite warm water, which is ideal for most people. Swimming becomes comfortable, and prolonged stays in the water do not cause discomfort. This temperature is perfect for family trips and for those who prefer warmer water. It is also comfortable for water sports such as surfing or swimming. 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 May 9 to June 9

Table of Daily Sea Temperature Data

Date	Current	Average	Forecast
JUN 2	21.1°C	24.9°C
JUN 3	20.4°C	24.9°C
JUN 4	20.4°C	24.9°C
JUN 5	20.4°C	24.9°C
JUN 6	20.4°C	24.9°C
JUN 7	19.8°C	24.9°C
JUN 8	19.5°C	24.9°C
JUN 10		24.9°C	19.8°C
JUN 11		24.9°C	20.0°C
JUN 12		24.9°C	20.3°C
JUN 13		24.9°C	20.6°C
JUN 14		24.9°C	20.9°C
JUN 15		24.9°C	21.1°C
JUN 16		24.9°C	21.4°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	7°C	11°C	14°C
February	7°C	11°C	15°C
March	7°C	12°C	17°C
April	11°C	15°C	20°C
May	16°C	21°C	26°C
June	19°C	25°C	30°C
July	22°C	27°C	33°C
August	23°C	28°C	34°C
September	21°C	26°C	32°C
October	14°C	19°C	22°C
November	11°C	15°C	19°C
December	9°C	12°C	15°C

Albufeira de Vale de Gaio Lake: Water Temperature by Location

🇵🇹 Portugal > Setúbal District

Albufeira de Vale de Gaio Lake: Weather Forecast

June 9

° / °

partly cloudy

rain: 0% | wind:

June 10

° / °

clear sky

rain: 0% | wind:

June 11

° / °

clear sky

rain: 3% | wind:

June 12

° / °

overcast

rain: 5% | wind:

June 13

° / °

slight rain showers

rain: 15% | wind:

June 14

° / °

slight rain showers

rain: 22% | wind:

Location & Local Information

Albufeira de Vale de Gaio is a mid-sized reservoir whose water temperature follows typical inland southern Portuguese patterns. In winter the surface temperature commonly sits around 10–14 °C (50–57 °F), spring brings a steady rise to roughly 12–20 °C (54–68 °F) as sunlight and air temperatures increase, while summer surface readings often reach 20–26 °C (68–79 °F) and can locally climb higher in shallow, sheltered bays. In autumn temperatures fall back to approximately 14–20 °C (57–68 °F). Deeper water remains noticeably cooler year-round, and localized conditions such as shade, inflows or recent rains can produce short-term variations.

Swimming is commonly practiced at Albufeira de Vale de Gaio but it is not always a formally supervised bathing area; whether swimming is officially allowed depends on the managing authority and any posted signage. People swim there for recreation because the reservoir offers accessible shoreline and generally calm water, but swimmers should be aware of risks: absence of lifeguards, variable water quality or algal blooms, sudden depth changes, submerged obstacles and occasional boat or maintenance activity related to dam operations. For safety and legality it is advisable to check local notices or municipal guidance before entering the water.

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Frequently Asked Questions

What is the current water temperature in Albufeira de Vale de Gaio Lake?

Water Temperature in Albufeira de Vale de Gaio Lake today is 19.5°C.

What is the water temperature in Albufeira de Vale de Gaio Lake during the summer months?

The water temperature in Albufeira de Vale de Gaio Lake in summer fluctuates in the range of 19°C - 34°C.

Is it possible to swim in Albufeira de Vale de Gaio (Portugal) and what are the possibilities for this?

Yes — you can swim in Albufeira de Vale de Gaio, mainly from its shorelines or small sandy spots and as open-water swimming or while using small craft like kayaks or paddleboards, but facilities and lifeguards are limited so check local water-quality information and signage and take usual safety precautions for depth, submerged hazards and boat traffic.