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Arda River — Current Water Temperature, Annual Trends and Forecast

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

Arda River, Bulgaria
Arda River, Bulgaria © By Vassia Atanassova, Public domain

Current Water Temperature

17.9°C
Today
17.8°C
Yesterday
18.8°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 the Arda River today is 17.9°C.

Water Temperature: Daily Trends, Historical Records, and Forecast

⚠️ As of today, the minimum water temperature ranges from 60°F (15°C) to 65°F (18°C). The water is comfortable for most people, making it an ideal range for water sports enthusiasts. The temperature does not cause significant discomfort, and swimming will be pleasant for the majority. However, it's important to remember that prolonged exposure to the water can still lead to cooling, so it's essential to monitor the time spent in the water, especially for children or elderly people. 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 418.8°C16.0°C
OCT 518.8°C16.0°C
OCT 617.9°C16.0°C
OCT 718.2°C16.0°C
OCT 818.3°C16.0°C
OCT 917.8°C16.0°C
OCT 1017.8°C16.0°C
OCT 1216.0°C17.8°C
OCT 1316.0°C17.7°C
OCT 1416.0°C17.6°C
OCT 1516.0°C17.5°C
OCT 1616.0°C17.4°C
OCT 1716.0°C17.3°C
OCT 1816.0°C17.2°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°C8°C11°C
February4°C8°C11°C
March6°C10°C14°C
April9°C13°C17°C
May10°C16°C22°C
June15°C20°C25°C
July17°C22°C28°C
August18°C23°C29°C
September15°C20°C26°C
October12°C16°C18°C
November9°C13°C16°C
December4°C9°C12°C

Arda River: Water Temperature by Location

Arda River: Weather Forecast

October 11

° / °
overcast
rain: 7% | wind:

October 12

° / °
slight rain showers
rain: 53% | wind:

October 13

° / °
slight rain
rain: 61% | wind:

October 14

° / °
slight rain
rain: 70% | wind:

October 15

° / °
overcast
rain: 63% | wind:

Location & Local Information

Source Rhodope Mountains
• location Smolyan, Rhodopes, Bulgaria
• coordinates 41°25′52″N 24°36′36″E
• elevation 1,455 m (4,774 ft) (Ardin vrah)
Mouth Maritsa
• location Edirne, Turkey
• coordinates 41°39′39″N 26°29′42″E
• elevation 33 m (108 ft)
Length 290 km (180 mi)

The Arda (Bulgarian: Арда) is a southern Bulgarian river whose character changes from cooler, faster mountain stretches to warmer, slower flows in its reservoirs and lowland reaches. Typical seasonal water temperatures vary: in spring (March–May) the river commonly measures about 4–12 °C (39–54 °F), warming in summer (June–August) to roughly 16–24 °C (61–75 °F), with sheltered reservoir bays occasionally reaching around 26 °C (79 °F) in hot spells. Autumn (September–November) temperatures generally fall back to the 10–16 °C (50–61 °F) range, while winter waters near the surface are often close to freezing, around 0–5 °C (32–41 °F), though impounded sections can be a few degrees warmer.

Swimming in the Arda is possible and commonly practiced in summer, particularly in the calmer reservoir areas such as around Kardzhali and Ivaylovgrad where water is warmer and currents are reduced. However, swimming is inadvisable in fast mountain sections, near dam structures, spillways or intake zones because of strong currents, submerged hazards and sudden water releases from hydroelectric operations. Water quality and safety vary locally and lifeguards are usually absent, so bathing is permitted in many places but should be undertaken with caution and local awareness of rules and conditions.

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Frequently Asked Questions

What is the current water temperature in the Arda River?
Water Temperature in the Arda River today is 17.9°C.
What is the water temperature in the Arda River during the summer months?
The water temperature in the Arda River in summer fluctuates in the range of 15°C - 29°C.
Is it possible to swim in Arda (Bulgaria) and what are the possibilities for this?
Yes, you can swim in sections of the Arda River and its reservoirs and in sheltered mountain pools, but conditions vary by location and season—some stretches are fast, cold or influenced by dam releases and water quality, so choose calm or designated bathing spots and observe normal safety precautions.