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Lake Mandrensko — Current Water Temperature, Annual Trends and Forecast

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

Lake Mandrensko, Bulgaria
Lake Mandrensko, Bulgaria © By Evgeni Dinev, CC BY 2.0

Current Water Temperature

23.6°C
Today
22.5°C
Yesterday
21.7°C
A Week Ago
Get instant access to real-time water temperatures for this and all other locations with our iOS and Android apps.

Water Temperature in Lake Mandrensko today is 23.6°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 May 10 to June 10

Table of Daily Sea Temperature Data

Date Current Average Forecast
JUN 321.7°C22.0°C
JUN 421.7°C22.0°C
JUN 521.9°C22.0°C
JUN 622.5°C22.0°C
JUN 722.6°C22.0°C
JUN 822.5°C22.0°C
JUN 1023.6°C22.0°C
JUN 1122.0°C23.5°C
JUN 1222.0°C23.4°C
JUN 1322.0°C23.4°C
JUN 1422.0°C23.3°C
JUN 1522.0°C23.2°C
JUN 1622.0°C23.1°C
JUN 1722.0°C23.0°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
January4°C9°C14°C
February4°C10°C14°C
March5°C11°C17°C
April9°C15°C19°C
May11°C18°C24°C
June17°C22°C27°C
July20°C25°C30°C
August20°C25°C30°C
September17°C22°C27°C
October14°C19°C22°C
November10°C14°C18°C
December5°C10°C14°C

Lake Mandrensko: Water Temperature by Location

Lake Mandrensko: Weather Forecast

June 9

° / °
fog
rain: 0% | wind:

June 10

° / °
overcast
rain: 0% | wind:

June 11

° / °
overcast
rain: 21% | wind:

June 12

° / °
slight rain showers
rain: 26% | wind:

June 13

° / °
slight thunderstorm
rain: 17% | wind:

Location & Local Information

Lake Mandrensko (Язовир Мандра) is a shallow coastal reservoir near Burgas whose water temperature varies with the seasons, local weather and inflows. In winter the surface typically cools to around 0–6 °C (32–43 °F), while spring warming brings temperatures up to roughly 8–16 °C (46–61 °F). In summer the shallows can reach their warmest, commonly 22–28 °C (72–82 °F) on hot days, and in autumn surface temperatures usually fall back to about 12–20 °C (54–68 °F). Short-term swings are common after heat waves, storms or heavy freshwater inflows, and deeper or more shaded bays may remain several degrees colder than exposed shallows.

Swimming at Mandrensko is not broadly promoted as an organized bathing location; locals may swim there in summer, but access and conditions vary. Parts of the reservoir and adjacent wetlands have environmental protections for birdlife, and areas around the dam, intake structures or busy fishing spots are restricted for safety. Water quality can fluctuate because of agricultural runoff, urban discharges and reed-choked littoral zones, so authorities sometimes advise against bathing in specific places. Anyone considering swimming should follow local signage, check with municipal authorities about current restrictions and be mindful of hazards such as sudden drop-offs, underwater vegetation and boat traffic.

Nearby Lakes

Frequently Asked Questions

What is the current water temperature in Lake Mandrensko?
Water Temperature in Lake Mandrensko today is 23.6°C.
What is the water temperature in Lake Mandrensko during the summer months?
The water temperature in Lake Mandrensko in summer fluctuates in the range of 17°C - 30°C.
Is it possible to swim in Lake Mandrensko (Bulgaria) and what are the possibilities for this?
Yes — you can swim in parts of Lake Mandrensko, primarily in accessible sheltered inlets and informal recreational spots, but swimming is limited by reedbeds, changing water quality and local restrictions, so it's safest to use marked or permitted areas or nearby Black Sea beaches.