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Ružín Lake — Current Water Temperature, Annual Trends and Forecast

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

Izra Lake, Slovakia
Izra Lake, Slovakia © Rado Kertes, Public domain

Current Water Temperature

22.3°C
Today
20.9°C
Yesterday
18.3°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 Ružín Lake today is 22.3°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 30 to June 30

Table of Daily Sea Temperature Data

Date Current Average Forecast
JUN 2318.3°C20.0°C
JUN 2418.7°C20.0°C
JUN 2518.7°C20.0°C
JUN 2619.1°C20.0°C
JUN 2719.4°C20.0°C
JUN 2820.4°C20.0°C
JUN 2920.9°C20.0°C
JUN 3021.2°C20.0°C
JUL 123.0°C22.3°C
JUL 223.0°C22.4°C
JUL 323.0°C22.4°C
JUL 423.0°C22.4°C
JUL 523.0°C22.5°C
JUL 623.0°C22.5°C
JUL 723.0°C22.5°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°C9°C
February0°C5°C9°C
March2°C7°C12°C
April5°C10°C15°C
May8°C15°C21°C
June14°C20°C25°C
July18°C23°C28°C
August14°C20°C25°C
September12°C18°C23°C
October8°C12°C15°C
November3°C8°C12°C
December1°C6°C10°C

Ružín Lake: Water Temperature by Location

Ružín Lake: Weather Forecast

July 1

° / °
slight thunderstorm
rain: 68% | wind:

July 2

° / °
slight rain
rain: 67% | wind:

July 3

° / °
overcast
rain: 29% | wind:

July 4

° / °
partly cloudy
rain: 4% | wind:

July 5

° / °
overcast
rain: 34% | wind:

July 6

° / °
light drizzle
rain: 38% | wind:

Location & Local Information

The Ružín Reservoir, located in eastern Slovakia and surrounded by forested hills, has cooler water temperatures compared to lowland lakes. Because of its depth and position in a valley, the water warms up more slowly, typically staying around 18–20 °C in early summer. By July and August, it may reach 21–23 °C in the shallower bays, but in the deeper central parts it remains noticeably colder, which can be refreshing during hot days.

Swimming in Ružín is possible, especially in areas near the shore where the water is warmer and calmer. It is not as popular for mass swimming as smaller recreational lakes, but locals and visitors do enjoy bathing in certain accessible spots. The reservoir is also valued for boating, kayaking, and fishing, which makes it more of an active water destination rather than a classic beach-style swimming location.

Nearby Lakes

Frequently Asked Questions

What is the current water temperature in Ružín Lake?
Water Temperature in Ružín Lake today is 22.3°C.
What is the water temperature in Ružín Lake during the summer months?
The water temperature in Ružín Lake in summer fluctuates in the range of 14°C - 28°C.
Is it possible to swim in Ružín (Slovakia) and what are the possibilities for this?
Yes — you can swim in the Ružín reservoir, mainly from informal shorelines, small local beaches and recreational spots used for bathing, boating and other watersports, but there are few officially supervised swimming areas so water quality, seasonal restrictions and hazards like steep banks and boat traffic vary and you should follow local notices and stick to designated spots when available.