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Târnava Mare River — Current Water Temperature, Annual Trends and Forecast

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

Târnava Mare River, Romania
Târnava Mare River, Romania © By Țetcu Mircea Rareș, CC BY-SA 2.5

Current Water Temperature

21.2°C
Today
20.1°C
Yesterday
18.7°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 the Târnava Mare River today is 21.2°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 30 to June 30

Table of Daily Sea Temperature Data

Date Current Average Forecast
JUN 2318.7°C18.0°C
JUN 2418.7°C18.0°C
JUN 2519.3°C18.0°C
JUN 2619.5°C18.0°C
JUN 2719.5°C18.0°C
JUN 2819.5°C18.0°C
JUN 2920.1°C18.0°C
JUN 3021.2°C18.0°C
JUL 119.0°C21.1°C
JUL 219.0°C21.0°C
JUL 319.0°C20.9°C
JUL 419.0°C20.8°C
JUL 519.0°C20.7°C
JUL 619.0°C20.5°C
JUL 719.0°C20.4°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
January2°C6°C9°C
February2°C6°C9°C
March3°C7°C10°C
April7°C11°C14°C
May9°C13°C18°C
June14°C18°C23°C
July15°C19°C24°C
August15°C19°C24°C
September12°C17°C21°C
October9°C12°C15°C
November5°C9°C11°C
December2°C6°C9°C

Târnava Mare River: Water Temperature by Location

Târnava Mare River: Weather Forecast

July 1

° / °
slight rain showers
rain: 43% | wind:

July 2

° / °
moderate thunderstorm
rain: 85% | wind:

July 3

° / °
slight thunderstorm
rain: 83% | wind:

July 4

° / °
overcast
rain: 48% | wind:

July 5

° / °
slight rain
rain: 15% | wind:

July 6

° / °
slight rain
rain: 23% | wind:

Location & Local Information

Source Gurghiu Mountains
• elevation 1,455 m (4,774 ft)
Mouth Târnava
• location Blaj
• coordinates 46°10′16″N 23°53′31″E
Length 223 km (139 mi)

The Târnava Mare in central Romania is a medium‑sized Transylvanian river whose water temperature varies with the seasons and local weather. In winter the river can be very cold, often near 0–4 °C (32–39 °F), while spring typically brings cooler flows of roughly 6–12 °C (43–54 °F) as snowmelt and rains increase discharge. During summer the shallow stretches warm most, commonly ranging from about 18–24 °C (64–75 °F) on warm days, making the water most comfortable for brief swims. Autumn temperatures generally fall back to 10–16 °C (50–61 °F) as air temperatures cool and flows stabilise.

Swimming in the Târnava Mare is possible at many informal spots but is not universally regulated or supervised. Local conditions — including variable currents, submerged hazards, water quality influenced by agricultural runoff or sewage inputs, and sections flowing through private land — determine whether it is advisable to enter the water. Designated, monitored bathing areas are uncommon, so people typically swim at their own risk; checking local signage, recent water‑quality information and avoiding fast or murky stretches improves safety. In short, summer offers the most comfortable temperatures, but safety and legality depend on location and season.

Nearby Rivers

Frequently Asked Questions

What is the current water temperature in the Târnava Mare River?
Water Temperature in the Târnava Mare River today is 21.2°C.
What is the water temperature in the Târnava Mare River during the summer months?
The water temperature in the Târnava Mare River in summer fluctuates in the range of 14°C - 24°C.
Is it possible to swim in Târnava Mare (Romania) and what are the possibilities for this?
Swimming in the Târnava Mare is possible in some calm, shallow stretches, natural pools and small reservoirs, but opportunities are limited and seasonal, water quality and underwater hazards can vary, and it’s advisable to use designated bathing spots or municipal pools and to check local conditions and permissions beforehand.