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Petrinja — Current Water Temperature, Annual Trends and Forecast

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

Kupa River, Slovenia
Kupa River, Slovenia © By Kittykay18, CC BY-SA 4.0

Current Water Temperature

12.1°C
Today
12.0°C
Yesterday
14.2°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 Petrinja today is 12.1°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 September 30 to October 31

Table of Daily Sea Temperature Data

Date Current Average Forecast
OCT 2414.2°C14.0°C
OCT 2513.9°C14.0°C
OCT 2613.6°C14.0°C
OCT 2712.7°C14.0°C
OCT 2812.6°C14.0°C
OCT 2912.5°C14.0°C
OCT 3012.0°C14.0°C
OCT 3112.1°C14.0°C
NOV 19.8°C12.0°C
NOV 29.8°C11.9°C
NOV 39.8°C11.8°C
NOV 49.8°C11.6°C
NOV 59.8°C11.5°C
NOV 69.8°C11.4°C
NOV 79.8°C11.3°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
January3°C8°C11°C
February4°C8°C10°C
March7°C10°C13°C
April8°C12°C15°C
May9°C14°C20°C
June13°C19°C25°C
July15°C20°C26°C
August15°C21°C27°C
September12°C17°C23°C
October10°C14°C17°C
November6°C10°C13°C
December4°C8°C11°C

Petrinja: Weather Forecast

October 31

° / °
overcast
rain: 8% | wind:

November 1

° / °
slight rain showers
rain: 75% | wind:

November 2

° / °
slight rain
rain: 75% | wind:

November 3

° / °
slight rain
rain: 58% | wind:

November 4

° / °
slight rain
rain: 53% | wind:

Location & Local Information

In the town of Petrinja, the Kupa River flows calmly, creating a pleasant setting for swimming during the summer months. Here the water temperature typically rises to around 22–25°C in July and August, making it comfortable enough for long swims. Because the river is not too deep in this area, the water warms up more quickly than in wider stretches downstream, while still keeping a refreshing feel during hot days.

Locals in Petrinja often use the accessible riverbanks and calmer sections of the Kupa for swimming and cooling off. The atmosphere is relaxed and natural, without large crowds, which makes it an inviting spot for families and anyone who enjoys swimming in a quiet river setting. Alongside swimming, the river also offers opportunities for simple recreation like wading, fishing, or just relaxing by the water.

Nearby Locations

Frequently Asked Questions

What is the current water temperature in Petrinja?
Water Temperature in Petrinja today is 12.1°C.
What is the water temperature in Petrinja during the summer months?
The water temperature in Petrinja in summer fluctuates in the range of 13°C - 27°C.
Is it possible to swim in Petrinja (Croatia) in Kupa and what are the possibilities for this?
Yes — you can swim in the Kupa at Petrinja from natural pebble and grassy banks and small informal beaches, and also enjoy paddling or river bathing, but water levels, currents and water quality vary seasonally so check local conditions and exercise caution because lifeguards are generally not present.