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.
Current Water Temperature
Water Temperature in Petrinja today is 19°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
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| SEP 13 | 20.2°C | 17.2°C | |
| SEP 14 | 19.3°C | 17.2°C | |
| SEP 15 | 19.2°C | 17.2°C | |
| SEP 16 | 18.6°C | 17.2°C | |
| SEP 17 | 18.7°C | 17.2°C | |
| SEP 18 | 19.5°C | 17.2°C | |
| SEP 19 | 19.1°C | 17.2°C | |
| SEP 20 | 19.1°C | 17.2°C | |
| SEP 21 | 17.2°C | 18.9°C | |
| SEP 22 | 17.2°C | 18.8°C | |
| SEP 23 | 17.2°C | 18.7°C | |
| SEP 24 | 17.2°C | 18.6°C | |
| SEP 25 | 17.2°C | 18.6°C | |
| SEP 26 | 17.2°C | 18.5°C | |
| SEP 27 | 17.2°C | 18.4°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 |
|---|---|---|---|
| January | 3°C | 8°C | 11°C |
| February | 4°C | 8°C | 10°C |
| March | 7°C | 10°C | 13°C |
| April | 8°C | 12°C | 15°C |
| May | 9°C | 14°C | 20°C |
| June | 13°C | 19°C | 25°C |
| July | 15°C | 20°C | 26°C |
| August | 15°C | 21°C | 27°C |
| September | 12°C | 17°C | 23°C |
| October | 10°C | 14°C | 17°C |
| November | 6°C | 10°C | 13°C |
| December | 4°C | 8°C | 11°C |
Petrinja: Weather Forecast
September 21
September 22
September 23
September 24
September 25
September 26
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.