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Sava River — Current Water Temperature, Annual Trends and Forecast

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

Sava River, Slovenia
Sava River, Slovenia © By Petar Milošević, CC BY-SA 4.0

Current Water Temperature

18.7°C
Today
19.0°C
Yesterday
20.3°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 the Sava River today is 18.7°C.

Water Temperature: Daily Trends, Historical Records, and Forecast

⚠️ As of today, the minimum water temperature ranges from 65°F (18°C) to 68°F (20°C). This is already quite warm water, which is ideal for most people. Swimming becomes comfortable, and prolonged stays in the water do not cause discomfort. This temperature is perfect for family trips and for those who prefer warmer water. It is also comfortable for water sports such as surfing or swimming. 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 June 22 to July 23

Table of Daily Sea Temperature Data

Date Current Average Forecast
JUL 1620.3°C19.0°C
JUL 1720.1°C19.0°C
JUL 1820.8°C19.0°C
JUL 1920.5°C19.0°C
JUL 2020.3°C19.0°C
JUL 2119.3°C19.0°C
JUL 2219.0°C19.0°C
JUL 2318.7°C19.0°C
JUL 2419.0°C18.7°C
JUL 2519.0°C18.7°C
JUL 2619.0°C18.7°C
JUL 2719.0°C18.8°C
JUL 2819.0°C18.8°C
JUL 2919.0°C18.8°C
JUL 3019.0°C18.8°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
March4°C8°C10°C
April6°C10°C14°C
May8°C13°C18°C
June11°C18°C23°C
July15°C19°C24°C
August15°C19°C24°C
September12°C17°C21°C
October9°C12°C15°C
November4°C8°C11°C
December2°C6°C9°C

Sava River: Water Temperature by Location

Sava River: Weather Forecast

July 24

° / °
fog
rain: 10% | wind:

July 25

° / °
slight rain
rain: 9% | wind:

July 26

° / °
slight rain
rain: 62% | wind:

July 27

° / °
slight rain showers
rain: 48% | wind:

Location & Local Information

Source Zelenci
• location Kranjska Gora, Slovenia
• coordinates 46°29′31″N 13°44′16″E
• elevation 833 m (2,733 ft)
Mouth Danube
• location Belgrade, Serbia
• coordinates 44°49′27″N 20°26′38″E
• elevation 68 m (223 ft)
Length 992 km (616 mi)

The Sava River is the longest river flowing through Slovenia, running from the northwest near the Julian Alps and continuing toward Croatia. Its water temperature varies greatly depending on the season and location. In summer, near lower stretches in Slovenia, the surface temperature can reach 20–24°C, making some calmer sections suitable for swimming. In spring and autumn, the water is cooler, typically around 12–16°C, while in winter it can drop to 4–6°C or lower in certain areas.

Swimming in the Sava is possible in some sections, especially where the current is mild and the banks are accessible. However, because the river is flowing, the water can be unpredictable, and some parts have strong currents, making swimming unsafe. Popular spots for a dip are usually small beaches or areas with slower water near towns and recreational facilities.

Outside of summer, swimming is less common due to cooler temperatures and stronger currents. People often enjoy walking, cycling along the riverbanks, or picnicking by the river rather than bathing. Even a short dip in summer can be refreshing, especially on hot days.

Nearby Rivers

Frequently Asked Questions

What is the current water temperature in the Sava River?
Water Temperature in the Sava River today is 18.7°C.
What is the water temperature in the Sava River during the summer months?
The water temperature in the Sava River in summer fluctuates in the range of 11°C - 24°C.
Is it possible to swim in Sava (Slovenia) and what are the possibilities for this?
Yes — you can swim in parts of the Sava in Slovenia, especially in calmer stretches, designated bathing spots and river beaches near towns, or as wild swimming combined with organized water sports like kayaking and rafting, but conditions and water quality vary so always heed local notices, check seasonal water-quality reports and be cautious of currents, boat traffic and access.