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Black Lake — Current Water Temperature, Annual Trends and Forecast

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

Black Lake, Slovenia
Black Lake, Slovenia © By Sl-Ziga, Public domain

Current Water Temperature

9.6°C
Today
8.9°C
Yesterday
11.6°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 Black Lake today is 9.6°C.

Water Temperature: Daily Trends, Historical Records, and Forecast

❌ As of today, the minimum water temperature ranges from 47°F (8°C) to 50°F (10°C). This is still cool water, suitable only for experienced swimmers or those accustomed to cold water. Swimming in such conditions is possible, but not recommended for prolonged periods. Extra caution should be taken during extended exposure, as the cold water can cause heat loss and lead to hypothermia. For added comfort, special clothing can be used. 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 310.8°C15.5°C
JUN 49.6°C15.5°C
JUN 510.4°C15.5°C
JUN 610.3°C15.5°C
JUN 79.2°C15.5°C
JUN 88.9°C15.5°C
JUN 109.6°C15.5°C
JUN 1115.5°C9.9°C
JUN 1215.5°C10.2°C
JUN 1315.5°C10.5°C
JUN 1415.5°C10.8°C
JUN 1515.5°C11.1°C
JUN 1615.5°C11.4°C
JUN 1715.5°C11.7°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°C2°C5°C
February0°C2°C5°C
March0°C4°C7°C
April2°C7°C11°C
May5°C10°C15°C
June8°C16°C22°C
July12°C18°C23°C
August12°C18°C23°C
September9°C14°C20°C
October5°C9°C12°C
November1°C5°C9°C
December0°C2°C5°C

Black Lake: Water Temperature by Location

Black Lake: Weather Forecast

June 9

° / °
overcast
rain: 38% | wind:

June 10

° / °
slight thunderstorm
rain: 98% | wind:

June 11

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

June 12

° / °
overcast
rain: 12% | wind:

June 13

° / °
slight rain
rain: 25% | wind:

June 14

° / °
overcast
rain: 25% | wind:

Location & Local Information

Black Lake (Črno jezero) in Slovenia is a mountain lake lying at an altitude of over 1300 meters. Because of its height and location in a shaded forested area, the water here stays cold throughout most of the year. In summer, surface temperatures can briefly reach 15–18°C, but the water is usually cooler, especially below the top layer. Outside the warmest months, it often remains below 10°C.

Swimming in Black Lake is technically possible, but it is not a typical bathing spot. The lake is shallow, peat-colored, and surrounded by protected nature, so most visitors come for hiking and views rather than for swimming. Those who do take a dip should be ready for very refreshing water and only short stays in it.

Nearby Lakes

Frequently Asked Questions

What is the current water temperature in Black Lake?
Water Temperature in Black Lake today is 9.6°C.
What is the water temperature in Black Lake during the summer months?
The water temperature in Black Lake in summer fluctuates in the range of 8°C - 23°C.
Is it possible to swim in Black Lake (Slovenia) and what are the possibilities for this?
You can swim in Black Lake in Slovenia during the warmer months, but the water is very cold, there are typically no lifeguards or facilities, and access is limited to informal shore-entry swims or small non-motorized craft where local or park regulations permit.