Shumen — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Shumen, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Shumen today is 21.7°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 |
|---|---|---|---|
| JUN 3 | 20.5°C | 19.0°C | |
| JUN 4 | 20.5°C | 19.0°C | |
| JUN 5 | 20.6°C | 19.0°C | |
| JUN 6 | 21.2°C | 19.0°C | |
| JUN 7 | 20.9°C | 19.0°C | |
| JUN 8 | 20.9°C | 19.0°C | |
| JUN 10 | 21.7°C | 19.0°C | |
| JUN 11 | 19.0°C | 21.6°C | |
| JUN 12 | 19.0°C | 21.4°C | |
| JUN 13 | 19.0°C | 21.3°C | |
| JUN 14 | 19.0°C | 21.2°C | |
| JUN 15 | 19.0°C | 21.0°C | |
| JUN 16 | 19.0°C | 20.9°C | |
| JUN 17 | 19.0°C | 20.8°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 | 3°C | 7°C | 11°C |
| February | 3°C | 7°C | 11°C |
| March | 4°C | 10°C | 14°C |
| April | 8°C | 13°C | 17°C |
| May | 10°C | 16°C | 22°C |
| June | 14°C | 19°C | 24°C |
| July | 15°C | 20°C | 25°C |
| August | 16°C | 21°C | 26°C |
| September | 14°C | 19°C | 24°C |
| October | 11°C | 15°C | 18°C |
| November | 6°C | 10°C | 14°C |
| December | 3°C | 7°C | 11°C |
Shumen: Weather Forecast
June 9
June 10
June 11
June 12
June 13
Location & Local Information
Shumen sits inland in northeastern Bulgaria, where natural water bodies are mainly small rivers, ponds and man-made reservoirs rather than coastal waters. Seasonal temperatures in those rivers and lakes follow a continental pattern: in winter surface temperatures commonly hover around 0–4 °C (32–39 °F), spring brings a rise to roughly 6–15 °C (43–59 °F), and in summer typical surface values reach about 18–26 °C (64–79 °F), with shallow ponds or sheltered bays occasionally warming to near 27–28 °C (80–82 °F). During autumn waters cool again to roughly 10–16 °C (50–61 °F). Local variability is significant depending on depth, flow, shading and recent weather, so short-term temperatures can differ from these averages.
Swimming is possible in Shumen’s lakes and river stretches during the warm months where access is permitted, but it is not universally allowed everywhere. Some reservoirs serve drinking-water or flood-control functions and are legally off-limits; other sites may be open for recreation but lack lifeguards, marked zones or regular water-quality monitoring. Authorities typically restrict bathing for safety reasons (strong currents, sudden depth changes, underwater obstacles) or contamination risks such as bacterial blooms. Visitors should observe local signs and regulations and consider seasonal water temperatures and conditions before entering the water.