Monte da Rocha Reservoir — Current Water Temperature, Annual Trends and Forecast

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

Bornos Reservoir, Spain © By El Pantera, CC BY-SA 4.0

Current Water Temperature

26.2°C

Today

26.0°C

Yesterday

25.1°C

A Week Ago

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Water Temperature in Monte da Rocha Reservoir today is 26.2°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 July 11 to August 11

Table of Daily Sea Temperature Data

Date	Current	Average	Forecast
AUG 4	25.1°C	29.5°C
AUG 5	25.2°C	29.5°C
AUG 6	25.0°C	29.5°C
AUG 7	25.1°C	29.5°C
AUG 8	25.1°C	29.5°C
AUG 9	25.1°C	29.5°C
AUG 10	26.0°C	29.5°C
AUG 11	26.2°C	29.5°C
AUG 12		29.5°C	26.4°C
AUG 13		29.5°C	26.5°C
AUG 14		29.5°C	26.7°C
AUG 15		29.5°C	26.9°C
AUG 16		29.5°C	27.0°C
AUG 17		29.5°C	27.2°C
AUG 18		29.5°C	27.4°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	10°C	14°C	18°C
March	12°C	17°C	20°C
April	14°C	19°C	22°C
May	16°C	22°C	28°C
June	20°C	27°C	34°C
July	22°C	28°C	34°C
August	25°C	30°C	34°C
September	26°C	32°C	34°C
October	17°C	21°C	24°C
November	12°C	17°C	21°C
December	10°C	13°C	15°C

Monte da Rocha Reservoir: Water Temperature by Location

🇵🇹 Portugal > Beja District

Monte da Rocha Reservoir: Weather Forecast

August 12

° / °

fog

rain: 0% | wind:

August 13

° / °

clear sky

rain: 0% | wind:

August 14

° / °

partly cloudy

rain: 0% | wind:

August 15

° / °

fog

rain: 0% | wind:

Location & Local Information

The Albufeira da Barragem do Monte da Rocha (in Portuguese: Albufeira da Barragem do Monte da Rocha) is a reservoir in the Beja District of southern Portugal whose water temperature varies seasonally with the Mediterranean–continental climate of the Alentejo. Typical winter temperatures are relatively cool, approximately 8–14 °C (46–57 °F). In spring the water warms to about 12–20 °C (54–68 °F) as air temperatures rise and inflows decrease. Summer brings the warmest conditions, commonly around 20–27 °C (68–81 °F) at the surface in sheltered bays, while autumn sees a gradual cooling to roughly 15–22 °C (59–72 °F). These figures are approximate and can vary with depth, weather patterns and inflow rates.

Swimming opportunities exist but are conditional: recreational bathing is most comfortable and commonly attempted in the summer when surface temperatures are warmest, yet whether swimming is officially allowed depends on local management, water-use priorities and safety considerations. The reservoir is used for water supply and irrigation, so authorities may restrict access or post warnings due to water quality, fluctuating depths, submerged hazards and boat or maintenance activity. There is typically no lifeguard service, so visitors should observe posted signs, consult local municipal guidance and take standard precautions if they choose to swim.

Nearby Lakes

Frequently Asked Questions

What is the current water temperature in Monte da Rocha Reservoir?

Water Temperature in Monte da Rocha Reservoir today is 26.2°C.

What is the water temperature in Monte da Rocha Reservoir during the summer months?

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

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

Swimming in Monte da Rocha Reservoir may be possible but depends on local rules and water quality; where allowed you can take part in recreational swimming, paddling or organized/supervised water activities, so check signage and municipal guidance and assess safety before entering the water.