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Dej — Current Water Temperature, Annual Trends and Forecast

This page provides information on the current water temperature in Dej, trends, monthly ranges and the forecast for the coming days.

Someș River, Romania
Someș River, Romania © By Țetcu Mircea Rareș, CC BY-SA 4.0

Current Water Temperature

14.1°C
Today
14.4°C
Yesterday
15.9°C
A Week Ago
Get instant access to real-time water temperatures for this and all other locations with our iOS and Android apps.

Water Temperature in Dej today is 14.1°C.

Water Temperature: Daily Trends, Historical Records, and Forecast

⚠️ As of today, the minimum water temperature ranges from 54°F (12°C) to 60°F (15°C). The water is significantly warmer, and swimming becomes possible for most people. However, caution may still be required for prolonged stays in the water, as extended exposure can cause discomfort. This is a suitable temperature range for short swims and for those accustomed to cooler water. For more comfortable swimming, it is recommended to use proper gear. 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

From September 10 to October 11

Table of Daily Sea Temperature Data

Date Current Average Forecast
OCT 315.9°C12.0°C
OCT 415.6°C12.0°C
OCT 515.3°C12.0°C
OCT 614.7°C12.0°C
OCT 714.7°C12.0°C
OCT 814.0°C12.0°C
OCT 914.4°C12.0°C
OCT 1014.4°C12.0°C
OCT 1112.0°C14.0°C
OCT 1212.0°C13.9°C
OCT 1312.0°C13.8°C
OCT 1412.0°C13.7°C
OCT 1512.0°C13.6°C
OCT 1612.0°C13.5°C
OCT 1712.0°C13.4°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
January1°C5°C8°C
February1°C5°C8°C
March3°C7°C10°C
April6°C10°C14°C
May9°C14°C18°C
June14°C18°C23°C
July15°C19°C24°C
August15°C19°C24°C
September11°C16°C20°C
October9°C12°C15°C
November4°C8°C10°C
December1°C5°C8°C

Dej: Weather Forecast

October 11

° / °
slight rain
rain: 86% | wind:

October 12

° / °
fog
rain: 33% | wind:

October 13

° / °
slight rain showers
rain: 18% | wind:

October 14

° / °
fog
snow: 12% | wind:

October 15

° / °
fog
rain: 10% | wind:

Location & Local Information

Dej, in north‑western Romania, sits near the Someș river and a number of small reservoirs and ponds that serve local recreation. Water temperatures in these inland bodies typically follow a seasonal pattern: in spring surface temperatures rise from about 6–16 °C (43–61 °F) as ice melts and air warms; in summer they commonly reach 20–26 °C (68–79 °F), with occasional warm spells pushing readings to 27–28 °C (80–82 °F); autumn sees cooling to roughly 10–18 °C (50–64 °F); and in winter surface temperatures often approach freezing, around 0–4 °C (32–39 °F), with many smaller lakes or shallow areas icing over. Actual values vary with depth, weather, and water inflow.

Swimming opportunities exist mainly during the warmer months and depend on the specific site and local rules. Some reservoirs and managed beaches close to Dej permit bathing when water quality and safety checks are satisfactory, while river locations may be discouraged because of currents, variable depth and pollution. There are usually no lifeguards outside formal recreational areas, so swimming is most appropriate at designated spots that display permission and water‑quality information. Visitors should follow posted signs, local guidance and seasonal advisories to ensure safe bathing.

Nearby Locations

Frequently Asked Questions

What is the current water temperature in Dej?
Water Temperature in Dej today is 14.1°C.
What is the water temperature in Dej during the summer months?
The water temperature in Dej in summer fluctuates in the range of 14°C - 24°C.
Is it possible to swim in Dej (Romania) in Someș and what are the possibilities for this?
You can swim in places along the Someș in Dej during warm months, but there are no widely promoted supervised bathing zones so water quality, currents and local rules vary and make it somewhat unofficial and potentially risky, so many people prefer safer alternatives like the town's public swimming pool or nearby designated recreational lakes and beaches.