Acheron River — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in the Acheron River, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in the Acheron River today is 19.9°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 3 | 21.2°C | 18.0°C | |
| OCT 4 | 21.1°C | 18.0°C | |
| OCT 5 | 21.2°C | 18.0°C | |
| OCT 6 | 20.2°C | 18.0°C | |
| OCT 7 | 20.4°C | 18.0°C | |
| OCT 8 | 20.4°C | 18.0°C | |
| OCT 9 | 20.3°C | 18.0°C | |
| OCT 10 | 19.9°C | 18.0°C | |
| OCT 11 | 18.0°C | 19.8°C | |
| OCT 12 | 18.0°C | 19.7°C | |
| OCT 13 | 18.0°C | 19.6°C | |
| OCT 14 | 18.0°C | 19.5°C | |
| OCT 15 | 18.0°C | 19.4°C | |
| OCT 16 | 18.0°C | 19.3°C | |
| OCT 17 | 18.0°C | 19.2°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 | 9°C | 12°C | 15°C |
| April | 9°C | 13°C | 17°C |
| May | 10°C | 15°C | 21°C |
| June | 16°C | 20°C | 25°C |
| July | 18°C | 23°C | 29°C |
| August | 18°C | 24°C | 30°C |
| September | 18°C | 23°C | 29°C |
| October | 14°C | 18°C | 20°C |
| November | 11°C | 15°C | 18°C |
| December | 7°C | 11°C | 14°C |
Acheron River: Water Temperature by Location
Acheron River: Weather Forecast
October 11
October 12
October 13
October 14
October 15
Location & Local Information
Source:
• location Ioannina regional unit, Epirus
Mouth:
• location Ionian Sea
• coordinates 39°14′10″N 20°28′34″E
Length 52 km (32 mi)
The Acheron (Αχέρων) in Epirus is a mountain-fed river whose water remains relatively cool year-round because of spring sources and shaded gorges. Typical seasonal temperatures vary: in winter the river often measures around 4–8 °C (39–46 °F), spring temperatures usually rise to about 8–14 °C (46–57 °F), summer can bring the warmest stretches to roughly 12–18 °C (54–64 °F) in sheltered pools, and autumn sees a return toward 8–14 °C (46–57 °F). Local conditions such as recent rainfall, snowmelt and the depth of specific pools can change these values, so temperatures at particular swimming spots may differ from the general ranges.
Swimming is permitted in many accessible parts of the Acheron, and visitors often bathe in clear pools near the springs and calmer stretches, but it is not uniformly recommended everywhere. Cold water temperatures, strong currents in narrower reaches, submerged rocks and variable flow after rain create hazards; these factors, together with occasional local restrictions to protect ecosystems, mean caution is necessary. Many people enjoy short dips or supervised activities like rafting and guided swims with life jackets, but prolonged immersion can risk hypothermia. It is sensible to check local advice, observe signage, and favor designated or frequently used swimming spots.