Lake Tei — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lake Tei, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lake Tei today is 18.6°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 |
|---|---|---|---|
| SEP 30 | 20.7°C | 20.0°C | |
| OCT 1 | 20.6°C | 15.0°C | |
| OCT 2 | 19.8°C | 15.0°C | |
| OCT 3 | 19.4°C | 15.0°C | |
| OCT 4 | 19.3°C | 15.0°C | |
| OCT 5 | 19.2°C | 15.0°C | |
| OCT 6 | 18.7°C | 15.0°C | |
| OCT 7 | 18.6°C | 15.0°C | |
| OCT 8 | 15.0°C | 18.4°C | |
| OCT 9 | 15.0°C | 18.2°C | |
| OCT 10 | 15.0°C | 18.1°C | |
| OCT 11 | 15.0°C | 17.9°C | |
| OCT 12 | 15.0°C | 17.7°C | |
| OCT 13 | 15.0°C | 17.5°C | |
| OCT 14 | 15.0°C | 17.3°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 | 2°C | 7°C | 12°C |
| February | 2°C | 8°C | 12°C |
| March | 5°C | 10°C | 14°C |
| April | 10°C | 14°C | 18°C |
| May | 12°C | 18°C | 23°C |
| June | 14°C | 20°C | 27°C |
| July | 18°C | 23°C | 29°C |
| August | 18°C | 23°C | 29°C |
| September | 14°C | 20°C | 25°C |
| October | 11°C | 15°C | 19°C |
| November | 8°C | 12°C | 15°C |
| December | 3°C | 8°C | 12°C |
Lake Tei: Water Temperature by Location
Lake Tei: Weather Forecast
October 8
October 9
October 10
October 11
October 12
Location & Local Information
Lake Tei (Lacul Tei) in the Bucharest–Ilfov area is a relatively shallow urban lake, so its water temperature follows local seasonal patterns and can change quickly. In winter the surface often drops to around 0–4 °C (32–39 °F) and may freeze in cold spells. Spring sees a steady rise, typically 8–15 °C (46–59 °F) as air temperatures warm. In summer the water commonly ranges from about 18–26 °C (64–79 °F), with shallow bays sometimes reaching the upper 20s °C (around 82 °F) during heat waves. Autumn cooling brings temperatures back toward the spring range, often 8–14 °C (46–57 °F).
Swimming at Lacul Tei is not generally promoted or officially organized. Local regulations and park management generally discourage or prohibit bathing because the lake lacks designated swimming facilities, lifeguards and regular water-quality monitoring; nutrient runoff and occasional algal growth can affect safety and hygiene. As a result, while some people may enter the water informally during warm periods, such activity remains unofficial and carries risks related to water quality, underwater hazards and boat traffic. Visitors seeking safe swimming opportunities are advised to use supervised public pools or officially sanctioned beaches where monitoring and emergency services are available.