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Radnevo — Current Water Temperature, Annual Trends and Forecast

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

Tundzha River, Bulgaria
Tundzha River, Bulgaria © By Staryyeyes, CC BY-SA 4.0

Current Water Temperature

18.4°C
Today
18.0°C
Yesterday
19.5°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 Radnevo today is 18.4°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 September 10 to October 11

Table of Daily Sea Temperature Data

Date Current Average Forecast
OCT 419.5°C16.0°C
OCT 519.0°C16.0°C
OCT 618.3°C16.0°C
OCT 718.6°C16.0°C
OCT 818.1°C16.0°C
OCT 918.6°C16.0°C
OCT 1018.0°C16.0°C
OCT 1117.9°C16.0°C
OCT 1216.0°C18.3°C
OCT 1316.0°C18.2°C
OCT 1416.0°C18.0°C
OCT 1516.0°C17.9°C
OCT 1616.0°C17.8°C
OCT 1716.0°C17.7°C
OCT 1816.0°C17.6°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
January3°C8°C12°C
February4°C8°C12°C
March5°C10°C14°C
April9°C13°C16°C
May10°C15°C20°C
June14°C19°C25°C
July17°C22°C28°C
August17°C22°C28°C
September14°C19°C25°C
October12°C16°C18°C
November9°C12°C15°C
December4°C8°C12°C

Radnevo: Weather Forecast

October 11

° / °
overcast
rain: 11% | wind:

October 12

° / °
slight rain showers
rain: 59% | wind:

October 13

° / °
slight rain
rain: 60% | wind:

October 14

° / °
slight rain
rain: 62% | wind:

October 15

° / °
slight rain showers
rain: 45% | wind:

Location & Local Information

Radnevo (Раднево) lies in central-southern Bulgaria within Stara Zagora Province, and the nearby lake or reservoir experiences marked seasonal variation in water temperature typical for inland bodies in the region. In spring (April–May) surface temperatures commonly range from about 8–15 °C (46–59 °F) as the water warms after winter. During the height of summer (June–August) shallow areas and sheltered bays often reach 20–26 °C (68–79 °F), and on hot spells may climb a few degrees higher. In autumn (September–October) temperatures tend to fall back to roughly 12–18 °C (54–64 °F), while in winter the surface can approach freezing, roughly 0–5 °C (32–41 °F), with occasional ice cover depending on the year.

Swimming in the lake near Radnevo is possible seasonally, principally in the warmer months when water temperatures are comfortable; however whether it is officially allowed depends on local municipal rules, signage and water-quality monitoring. Restrictions can be in place for safety reasons (steep banks, variable depth, submerged hazards), for water-management purposes, or following episodes of poor water quality or algal blooms. Lifeguards are not always present, so swimmers should heed posted notices, check local advisories, and take ordinary precautions when entering the water.

Nearby Locations

Frequently Asked Questions

What is the current water temperature in Radnevo?
Water Temperature in Radnevo today is 18.4°C.
What is the water temperature in Radnevo during the summer months?
The water temperature in Radnevo in summer fluctuates in the range of 14°C - 28°C.
Is it possible to swim in Radnevo (Bulgaria) in Sazliyka and what are the possibilities for this?
Swimming in the Sazliyka near Radnevo is possible only at informal, unmonitored spots with variable water quality and depth, so it is generally not recommended without local advice and precautions, and many people instead use nearby regulated pools or reservoirs for safer bathing.