Tiber River — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in the Tiber River, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in the Tiber River today is 18.9°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 |
|---|---|---|---|
| OCT 4 | 20.1°C | 16.0°C | |
| OCT 5 | 19.8°C | 16.0°C | |
| OCT 6 | 19.7°C | 16.0°C | |
| OCT 7 | 19.9°C | 16.0°C | |
| OCT 8 | 19.5°C | 16.0°C | |
| OCT 9 | 19.2°C | 16.0°C | |
| OCT 10 | 19.1°C | 16.0°C | |
| OCT 12 | 16.0°C | 18.8°C | |
| OCT 13 | 16.0°C | 18.6°C | |
| OCT 14 | 16.0°C | 18.5°C | |
| OCT 15 | 16.0°C | 18.3°C | |
| OCT 16 | 16.0°C | 18.2°C | |
| OCT 17 | 16.0°C | 18.0°C | |
| OCT 18 | 16.0°C | 17.9°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 | 6°C | 9°C | 12°C |
| February | 6°C | 9°C | 12°C |
| March | 8°C | 11°C | 14°C |
| April | 9°C | 13°C | 17°C |
| May | 11°C | 16°C | 21°C |
| June | 14°C | 19°C | 25°C |
| July | 17°C | 22°C | 28°C |
| August | 17°C | 22°C | 28°C |
| September | 14°C | 19°C | 25°C |
| October | 12°C | 16°C | 18°C |
| November | 9°C | 13°C | 17°C |
| December | 6°C | 9°C | 12°C |
Tiber River: Water Temperature by Location
Tiber River: Weather Forecast
October 11
October 12
October 13
October 14
October 15
Location & Local Information
Source:
• location Mount Fumaiolo
• elevation 1,268 m (4,160 ft)
Mouth:
• location Tyrrhenian Sea
Length 406 km (252 mi)
The Tiber (Italian: Tevere) has its source on Mount Fumaiolo in the Emilia‑Romagna Apennines and then flows mainly through Umbria and Lazio before reaching the Tyrrhenian Sea. Water temperatures vary with season and along the course: in upper reaches near the source and in cooler months surface temperatures commonly sit around 4–12 °C (39–54 °F), warming in spring and early summer to roughly 10–18 °C (50–64 °F). In the central and lower stretches, including the Rome area, seasonal surface temperatures are generally about 6–14 °C (43–57 °F) in late winter/early spring and can rise to approximately 18–26 °C (64–79 °F) during hot summer months; autumn brings a gradual cooling back toward the winter range. These figures are approximations and depend on recent weather, river depth and flow.
Swimming in the Tiber is typically discouraged in urban and lowland sections for a combination of legal, environmental and safety reasons. Many stretches, especially through Rome, suffer from variable water quality (pollution and runoff), navigation by boats, changing currents and submerged hazards; local authorities often prohibit or advise against bathing. In more remote upper reaches water can be clearer and temperatures cooler, making occasional informal swimming possible, but anyone considering entering the river should check local regulations, recent water‑quality reports and be aware of currents, depth changes and access limitations.