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Kardzhali — Current Water Temperature, Annual Trends and Forecast

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

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

Current Water Temperature

21.3°C
Today
20.3°C
Yesterday
19.8°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 Kardzhali today is 21.3°C.

Water Temperature: Daily Trends, Historical Records, and Forecast

✅ As of today, the minimum water temperature ranges from 68°F (20°C) to 74°F (23°C). The water is warm and pleasant for swimming, and in this range, one can stay in the water for extended periods without the risk of hypothermia. This is the ideal temperature for relaxation, swimming, and water sports. Families with children, as well as outdoor enthusiasts, will enjoy swimming and time spent in the water. For most people, this is the optimal temperature for a comfortable beach experience. 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 319.8°C18.0°C
JUN 419.9°C18.0°C
JUN 520.0°C18.0°C
JUN 620.3°C18.0°C
JUN 720.3°C18.0°C
JUN 820.3°C18.0°C
JUN 1021.3°C18.0°C
JUN 1118.0°C21.1°C
JUN 1218.0°C21.0°C
JUN 1318.0°C20.8°C
JUN 1418.0°C20.6°C
JUN 1518.0°C20.5°C
JUN 1618.0°C20.3°C
JUN 1718.0°C20.1°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°C7°C10°C
February4°C8°C10°C
March5°C9°C13°C
April9°C13°C16°C
May9°C15°C21°C
June14°C18°C23°C
July16°C20°C25°C
August17°C21°C26°C
September14°C18°C23°C
October11°C15°C18°C
November9°C12°C15°C
December4°C8°C10°C

Kardzhali: Weather Forecast

June 9

° / °
overcast
rain: 3% | wind:

June 10

° / °
overcast
rain: 0% | wind:

June 11

° / °
slight rain showers
rain: 35% | wind:

June 12

° / °
slight rain showers
rain: 35% | wind:

June 13

° / °
slight thunderstorm
rain: 19% | wind:

Location & Local Information

Kardzhali (Bulgarian: Кърджали) sits on the shores of the Kardzhali Reservoir, a large impounded section of the Arda River that warms and cools with the seasons. Surface water temperatures typically range from near freezing in winter—about 0–4 °C (32–39 °F)—to cooler spring values of roughly 6–16 °C (43–61 °F). In summer, when air temperatures are highest, the shallow surface layer commonly reaches about 20–27 °C (68–81 °F) on warm days, though deeper water remains noticeably cooler. During autumn the surface generally falls back into the 10–18 °C (50–64 °F) band as the reservoir loses heat and inflows change. Local weather, wind, depth and inflow from upstream reservoirs affect these figures, so temperatures can vary from year to year.

Swimming in the Kardzhali Reservoir is a common recreational activity in summer and is generally permitted in open areas away from navigation channels and the dam; there are informal bathing spots and small beaches used by residents and visitors. However, there are no universal lifeguard provisions and some zones near the dam, intakes or boat traffic are unsafe or restricted, while water quality and underwater hazards vary by location and season. For safe swimming, people should choose established bathing areas, heed local signs and guidance, and be mindful of cold deeper water and changing currents.

Nearby Locations

Frequently Asked Questions

What is the current water temperature in Kardzhali?
Water Temperature in Kardzhali today is 21.3°C.
What is the water temperature in Kardzhali during the summer months?
The water temperature in Kardzhali in summer fluctuates in the range of 14°C - 26°C.
Is it possible to swim in Kardzhali (Bulgaria) in Arda and what are the possibilities for this?
Yes — you can swim in the Arda around Kardzhali, mainly in the calmer waters and pebble beaches of the Kardzhali Reservoir and in quieter river stretches where wild swimming is common, with options to access small bays by boat, join organized canoeing or rafting trips upstream, or swim from local picnic spots, but you should always check water quality, beware of currents and boat traffic, and avoid restricted dam areas.