Studena Reservoir — Current Water Temperature, Annual Trends and Forecast

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

Pasarel Reservoir, Bulgaria © Preslav, Public domain

Current Water Temperature

12.4°C

Today

12.0°C

Yesterday

14.0°C

A Week Ago

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Water Temperature in Studena Reservoir today is 12.4°C.

Water Temperature: Daily Trends, Historical Records, and Forecast

⚠️ As of today, the minimum water temperature ranges from 54°F (12°C) to 60°F (15°C). The water is significantly warmer, and swimming becomes possible for most people. However, caution may still be required for prolonged stays in the water, as extended exposure can cause discomfort. This is a suitable temperature range for short swims and for those accustomed to cooler water. For more comfortable swimming, it is recommended to use proper gear. 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 30 to October 31

Table of Daily Sea Temperature Data

Date	Current	Average	Forecast
OCT 24	14.0°C	14.0°C
OCT 25	14.1°C	14.0°C
OCT 26	13.3°C	14.0°C
OCT 27	13.3°C	14.0°C
OCT 28	13.3°C	14.0°C
OCT 29	13.1°C	14.0°C
OCT 30	12.0°C	14.0°C
OCT 31	12.4°C	14.0°C
NOV 1		10.0°C	12.3°C
NOV 2		10.0°C	12.2°C
NOV 3		10.0°C	12.0°C
NOV 4		10.0°C	11.9°C
NOV 5		10.0°C	11.8°C
NOV 6		10.0°C	11.7°C
NOV 7		10.0°C	11.6°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	2°C	6°C	10°C
February	2°C	6°C	10°C
March	3°C	8°C	12°C
April	5°C	10°C	14°C
May	8°C	14°C	20°C
June	12°C	18°C	23°C
July	16°C	21°C	26°C
August	16°C	21°C	26°C
September	12°C	18°C	24°C
October	10°C	14°C	18°C
November	6°C	10°C	13°C
December	2°C	7°C	10°C

Studena Reservoir: Water Temperature by Location

🇧🇬 Bulgaria

Studena Reservoir: Weather Forecast

November 1

° / °

slight rain showers

rain: 63% | wind:

November 2

° / °

slight rain

rain: 63% | wind:

November 3

° / °

slight rain showers

rain: 74% | wind:

November 4

° / °

fog

rain: 63% | wind:

Location & Local Information

Studena Reservoir (Язовир Студена) near Pernik, Bulgaria, is fed by mountain streams so its surface temperatures remain relatively cool. Seasonal surface ranges typically run from about 6–15 °C (43–59 °F) in spring, 18–25 °C (64–77 °F) during summer with occasional heatwave peaks to 26–27 °C (79–81 °F), 10–16 °C (50–61 °F) in autumn, and near freezing to roughly 0–4 °C (32–39 °F) in winter when ice can form in colder years. These figures vary by depth, wind, and location around the reservoir: shallow bays warm more quickly, while deeper central areas stay much colder even in summer, which can produce strong thermoclines and sudden chill below the surface.

Swimming at Studena is a sensitive issue because the reservoir is an important municipal water source and because of safety concerns such as steep banks, submerged obstacles and variable temperatures. For those reasons, swimming is generally discouraged and in many places effectively restricted to protect drinking water quality and reduce risk. Local authorities sometimes allow limited recreational use in designated areas, but visitors should look for signage and follow municipal rules; absence of formal beaches means conditions for safe, supervised swimming are limited compared with purpose-built swimming sites.

Nearby Lakes

Frequently Asked Questions

What is the current water temperature in Studena Reservoir?

Water Temperature in Studena Reservoir today is 12.4°C.

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

The water temperature in Studena Reservoir in summer fluctuates in the range of 12°C - 26°C.

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

You can swim in Studena Reservoir, but it is mainly informal — people typically bathe from the shore or small boats and combine swimming with activities like boating or kayaking, as there are few official beach facilities or lifeguards and local regulations and water conditions can change, so check access and safety locally before entering.