Terni — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Terni, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Terni today is 27.4°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature ranges from 79°F (26°C) to 82°F (28°C). This is very warm water, allowing for extended stays without any discomfort. Swimming in these conditions will be particularly enjoyable, making it the ideal temperature range for those who want to relax in the sea. Additionally, water in this temperature range is suitable for children and elderly people, as it is comfortable for prolonged stays. 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 |
|---|---|---|---|
| AUG 4 | 27.4°C | 22.1°C | |
| AUG 5 | 27.4°C | 22.1°C | |
| AUG 6 | 27.4°C | 22.1°C | |
| AUG 7 | 27.3°C | 22.1°C | |
| AUG 8 | 27.4°C | 22.1°C | |
| AUG 9 | 27.3°C | 22.1°C | |
| AUG 10 | 27.3°C | 22.1°C | |
| AUG 12 | 22.1°C | 27.1°C | |
| AUG 13 | 22.1°C | 26.9°C | |
| AUG 14 | 22.1°C | 26.6°C | |
| AUG 15 | 22.1°C | 26.3°C | |
| AUG 16 | 22.1°C | 26.1°C | |
| AUG 17 | 22.1°C | 25.8°C | |
| AUG 18 | 22.1°C | 25.5°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 | 16°C |
| May | 11°C | 16°C | 20°C |
| June | 14°C | 19°C | 25°C |
| July | 17°C | 22°C | 27°C |
| August | 17°C | 22°C | 28°C |
| September | 14°C | 18°C | 23°C |
| October | 12°C | 16°C | 18°C |
| November | 9°C | 12°C | 15°C |
| December | 6°C | 9°C | 12°C |
Terni: Weather Forecast
August 11
August 12
August 13
August 14
Location & Local Information
Terni’s closest lake, Lago di Piediluco, sits in the Umbrian hills and is the main local spot for open-water recreation. Surface temperatures vary with the seasons: in spring (April–May) waters typically range from about 10–18 °C (50–64 °F), in summer (June–August) they warm to roughly 20–26 °C (68–79 °F), in autumn (September–October) they cool to around 12–20 °C (54–68 °F), and in winter (November–March) temperatures commonly fall to about 4–10 °C (39–50 °F). These figures are approximate and can change with weather, recent rainfall and depth, as deeper parts remain noticeably colder than the shallows.
Swimming is generally allowed in designated areas of Lago di Piediluco and is popular in the warmer months because of the lake’s accessible shoreline and relatively calm water. Restrictions can apply near infrastructure, such as hydroelectric outlets or boating zones, and swimming close to the nearby Marmore Falls or in fast-flowing sections of the Nera River is unsafe and often prohibited due to strong currents and variable flows. Local signage and municipal rules govern bathing times and permitted spots, and occasional advisories may be issued for water quality or safety, so checking current local information before entering the water is advisable.