Prahova River — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in the Prahova River, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in the Prahova River today is 19.8°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 | 20.8°C | 16.8°C | |
| SEP 14 | 21.4°C | 16.8°C | |
| SEP 15 | 20.7°C | 16.8°C | |
| SEP 16 | 20.2°C | 16.8°C | |
| SEP 17 | 20.1°C | 16.8°C | |
| SEP 18 | 19.8°C | 16.8°C | |
| SEP 19 | 19.8°C | 16.8°C | |
| SEP 20 | 19.8°C | 16.8°C | |
| SEP 21 | 16.8°C | 19.7°C | |
| SEP 22 | 16.8°C | 19.5°C | |
| SEP 23 | 16.8°C | 19.4°C | |
| SEP 24 | 16.8°C | 19.2°C | |
| SEP 25 | 16.8°C | 19.1°C | |
| SEP 26 | 16.8°C | 18.9°C | |
| SEP 27 | 16.8°C | 18.8°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 |
|---|---|---|---|
| January | 2°C | 7°C | 10°C |
| February | 2°C | 6°C | 10°C |
| March | 4°C | 9°C | 12°C |
| April | 9°C | 12°C | 15°C |
| May | 10°C | 15°C | 19°C |
| June | 12°C | 18°C | 25°C |
| July | 15°C | 21°C | 27°C |
| August | 15°C | 21°C | 27°C |
| September | 12°C | 17°C | 22°C |
| October | 9°C | 13°C | 16°C |
| November | 7°C | 10°C | 13°C |
| December | 3°C | 7°C | 10°C |
Prahova River: Water Temperature by Location
Prahova River: Weather Forecast
September 21
September 22
September 23
September 24
September 25
Location & Local Information
Source Predeal
• coordinates 45°30′30″N 25°34′32″E
• elevation 1,037 m (3,402 ft)
Mouth Ialomița
• location Patru Frați
• coordinates 44°42′55″N 26°28′14″E
• elevation 63 m (207 ft)
Length 193 km (120 mi)
The Prahova, a river in central Romania, is largely mountain-fed and shows clear seasonal variation in water temperature. In winter the water commonly sits around 0–4 °C (32–39 °F) in upper reaches and only slightly warmer downstream. Spring brings snowmelt and cooling flows with typical temperatures of about 4–12 °C (39–54 °F), while summer is the warmest period: shallow, slow sections in the lower course can reach roughly 18–24 °C (64–75 °F), whereas higher-altitude stretches often remain cooler, around 10–16 °C (50–61 °F). In autumn the river generally falls back to about 6–14 °C (43–57 °F) as air temperatures decline and flows increase.
Swimming in the Prahova is possible in some stretches during the warmer months, but it is not universally encouraged. Many upper, fast-flowing sections are cold and potentially hazardous because of strong currents, rocks and sudden depth changes, while water quality can vary after rain or near settlements. Local rules, signage and occasional bans at specific sites are common, and organized bathing areas or reservoirs may be safer when available. Anyone choosing to swim should assess currents, water clarity and temperature, avoid isolated spots, and follow local guidance to reduce risk.