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Natisone River — Current Water Temperature, Annual Trends and Forecast

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

Natisone River, Slovenia
Natisone River, Slovenia © By Aconcagua, GFDL

Current Water Temperature

14.7°C
Today
13.6°C
Yesterday
15.5°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 Natisone River today is 14.7°C.

Water Temperature: Daily Trends, Historical Records, and Forecast

⚠️ As of today, the minimum water temperature ranges from 54°F (12°C) to 60°F (15°C). The water is significantly warmer, and swimming becomes possible for most people. However, caution may still be required for prolonged stays in the water, as extended exposure can cause discomfort. This is a suitable temperature range for short swims and for those accustomed to cooler water. For more comfortable swimming, it is recommended to use proper gear. 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 314.6°C18.3°C
JUN 414.2°C18.3°C
JUN 514.1°C18.3°C
JUN 614.9°C18.3°C
JUN 713.9°C18.3°C
JUN 813.6°C18.3°C
JUN 1014.7°C18.3°C
JUN 1118.3°C14.9°C
JUN 1218.3°C15.1°C
JUN 1318.3°C15.2°C
JUN 1418.3°C15.4°C
JUN 1518.3°C15.6°C
JUN 1618.3°C15.8°C
JUN 1718.3°C16.0°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°C11°C14°C
May9°C13°C18°C
June13°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

Natisone River: Water Temperature by Location

Natisone River: Weather Forecast

June 9

° / °
slight rain
rain: 38% | wind:

June 10

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

June 11

° / °
moderate rain showers
rain: 78% | wind:

June 12

° / °
slight rain
rain: 12% | wind:

June 13

° / °
overcast
rain: 21% | wind:

June 14

° / °
overcast
rain: 20% | wind:

Location & Local Information

Source:
• location Punta di Montemaggiore, Julian Prealps
• elevation 415 m (1,362 ft)
Mouth:
• location Torre
Length 60 km (37 mi)

The Natisone River, known as Nadiža in Slovenia, flows along the border between Slovenia and Italy, winding through picturesque valleys and limestone landscapes. Being a mountain river, its water is generally cool throughout the year. In the warmest summer months, from June to August, surface temperatures in calmer, shallow areas can reach 18–22°C, while faster and deeper sections remain around 12–16°C. In spring and autumn, the water is usually between 10–14°C, and in winter it can drop to 4–6°C.

Swimming in the Natisone is possible mainly in calm pools and slower sections, which are favored by locals during hot days. The river offers a refreshing escape from the heat, though caution is needed in areas with stronger currents. Its clear water and scenic surroundings also make it popular for activities like kayaking, wading, and short river hikes.

Outside of summer, swimming is less common due to cooler water and faster currents, but the river remains an attractive spot for walking, picnics, and enjoying nature. Even a brief summer dip can be invigorating, providing relief on warm days.

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Frequently Asked Questions

What is the current water temperature in the Natisone River?
Water Temperature in the Natisone River today is 14.7°C.
What is the water temperature in the Natisone River during the summer months?
The water temperature in the Natisone River in summer fluctuates in the range of 13°C - 24°C.
Is it possible to swim in Natisone (Slovenia) and what are the possibilities for this?
Yes — parts of the Natisone in Slovenia are suitable for swimming, especially in calm pools, natural basins and shallow, sheltered stretches popular with wild swimmers, but conditions vary with season, flow and water quality so always choose safe spots, heed local signs and advice, and be cautious of strong currents and slippery banks.