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Hnilec River — Current Water Temperature, Annual Trends and Forecast

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

Hnilec River, Slovakia
Hnilec River, Slovakia © By No machine, GFDL

Current Water Temperature

21.2°C
Today
19.9°C
Yesterday
17.5°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 the Hnilec 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 2317.5°C17.0°C
JUN 2417.8°C17.0°C
JUN 2517.8°C17.0°C
JUN 2618.1°C17.0°C
JUN 2718.4°C17.0°C
JUN 2819.4°C17.0°C
JUN 2919.9°C17.0°C
JUN 3020.3°C17.0°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
January0°C5°C8°C
February0°C4°C8°C
March2°C6°C10°C
April4°C9°C13°C
May7°C13°C18°C
June12°C17°C21°C
July15°C19°C24°C
August12°C17°C21°C
September10°C15°C19°C
October7°C10°C13°C
November2°C6°C10°C
December1°C6°C9°C

Hnilec River: Water Temperature by Location

Hnilec River: Weather Forecast

July 1

° / °
slight thunderstorm
rain: 51% | wind:

July 2

° / °
slight thunderstorm
rain: 51% | wind:

July 3

° / °
partly cloudy
rain: 21% | wind:

Location & Local Information

Source:
• location Low Tatras (Kráľova hoľa hill)
Mouth:
• location Hornád near Margecany
• coordinates 48.8878°N 21.0109°E
Length 91 km (57 mi)

The Hnilec River flows through the Slovak Paradise and the Spiš region, making it a typical mountain river with clear and fresh water. Because of its altitude and the fact that it is fed by smaller streams from the hills, the water remains relatively cold for most of the year. Even in summer, temperatures often stay between 14–18°C, rising slightly higher only in calmer and shallower stretches. This makes the river refreshing, but not particularly warm for longer swimming.

Swimming in the Hnilec is not very common, as it is more popular for fishing and as a scenic part of nature tourism. Locals sometimes use it for a quick dip on very hot days, but due to its cool temperature and stronger flow in some areas, it is better suited for short refreshment than for relaxed bathing. Its charm lies more in the natural beauty and freshness of the water than in classic swimming opportunities.

Nearby Rivers

Frequently Asked Questions

What is the current water temperature in the Hnilec River?
Water Temperature in the Hnilec River today is 21.2°C.
What is the water temperature in the Hnilec River during the summer months?
The water temperature in the Hnilec River in summer fluctuates in the range of 12°C - 24°C.
Is it possible to swim in Hnilec (Slovakia) and what are the possibilities for this?
It is possible to swim in parts of the Hnilec River — most notably at the Palcmanská Maša reservoir where recreational bathing and boating are common — but swimming in other stretches is informal and depends on calm water, water quality, access and any local or protected-area rules and safety considerations.