Haliacmon River — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in the Haliacmon River, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in the Haliacmon River today is 21.5°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature ranges from 68°F (20°C) to 74°F (23°C). The water is warm and pleasant for swimming, and in this range, one can stay in the water for extended periods without the risk of hypothermia. This is the ideal temperature for relaxation, swimming, and water sports. Families with children, as well as outdoor enthusiasts, will enjoy swimming and time spent in the water. For most people, this is the optimal temperature for a comfortable beach experience. 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 | 23.2°C | 22.0°C | |
| SEP 14 | 23.3°C | 22.0°C | |
| SEP 15 | 23.1°C | 22.0°C | |
| SEP 16 | 22.1°C | 22.0°C | |
| SEP 17 | 22.0°C | 22.0°C | |
| SEP 18 | 22.0°C | 22.0°C | |
| SEP 19 | 21.2°C | 22.0°C | |
| SEP 20 | 21.1°C | 22.0°C | |
| SEP 21 | 22.0°C | 21.5°C | |
| SEP 22 | 22.0°C | 21.6°C | |
| SEP 23 | 22.0°C | 21.6°C | |
| SEP 24 | 22.0°C | 21.6°C | |
| SEP 25 | 22.0°C | 21.6°C | |
| SEP 26 | 22.0°C | 21.7°C | |
| SEP 27 | 22.0°C | 21.7°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 | 4°C | 8°C | 10°C |
| February | 6°C | 9°C | 12°C |
| March | 7°C | 10°C | 13°C |
| April | 9°C | 12°C | 16°C |
| May | 12°C | 17°C | 21°C |
| June | 20°C | 25°C | 28°C |
| July | 18°C | 23°C | 27°C |
| August | 19°C | 24°C | 28°C |
| September | 18°C | 22°C | 27°C |
| October | 12°C | 16°C | 18°C |
| November | 9°C | 12°C | 15°C |
| December | 6°C | 10°C | 13°C |
Haliacmon River: Water Temperature by Location
Haliacmon River: Weather Forecast
September 21
September 22
September 23
September 24
September 25
September 26
Location & Local Information
Source:
• location Pindus Mountains
• coordinates 40°21′50.95″N 20°48′9.18″E
• elevation ~2100 m (~6,890 ft)
Mouth:
• location Aegean Sea
• coordinates 40°28′4″N 22°39′15″E
Length 297 km (185 mi)
The Haliacmon (Αλιάκμονας) is a mountain‑fed river in Western Macedonia whose water temperature varies considerably through the year because of elevation, inflows and reservoirs. Typical winter surface temperatures near upstream and shaded reaches commonly fall between about 4–9 °C (39–48 °F), while lowland stretches and the Polyfytos reservoir can be a little warmer. In spring the river usually warms to roughly 8–16 °C (46–61 °F) as snowmelt subsides and daylight increases. Summer surface temperatures in the calmer, sunlit pools and broader sections tend to range from about 16–24 °C (61–75 °F), with the warmest readings in shallow, slow areas. In autumn the water cools again to roughly 10–16 °C (50–61 °F) as air temperatures decline and flows pick up.
Swimming is possible in many parts of the Haliacmon, particularly in slower, shallower stretches and reservoir beaches where access is permitted, but it is not uniformly recommended everywhere. Local rules or signs can prohibit entry close to dams, intakes and rapid currents for safety reasons, and strong currents, sudden depth changes and cold water shock in shoulder seasons are real hazards. Water quality is generally acceptable in popular spots but can vary after heavy rain or upstream activity, so swimmers should follow posted guidance, choose established recreational areas and be cautious about cold temperatures outside high summer.