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Neris River — Current Water Temperature, Annual Trends and Forecast

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

Neris River, Lithuania
Neris River, Lithuania © By Mindaur, CC BY-SA 4.0

Current Water Temperature

51°F
Today
51°F
Yesterday
54°F
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 the Neris River today is 51°F.

Water Temperature: Daily Trends, Historical Records, and Forecast

❌ As of today, the minimum water temperature ranges from 50°F (10°C) to 54°F (12°C). The water is slightly warmer, but still cool for most people. Swimming in such conditions is possible, but for most people, the time spent in the water should be limited to avoid hypothermia. Even experienced swimmers may feel discomfort if they stay in the water for too long. To improve comfort and safety, a wetsuit can be used. 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 April 13 to May 14

Table of Daily Sea Temperature Data

Date Current Average Forecast
MAY 754°F54°F
MAY 855°F54°F
MAY 954°F54°F
MAY 1051°F54°F
MAY 1150°F54°F
MAY 1251°F54°F
MAY 1351°F54°F
MAY 1451°F54°F
MAY 1554°F51°F
MAY 1654°F52°F
MAY 1754°F52°F
MAY 1854°F52°F
MAY 1954°F52°F
MAY 2054°F52°F
MAY 2154°F52°F

* 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
January32°F39°F45°F
February32°F39°F45°F
March34°F41°F48°F
April41°F48°F52°F
May43°F54°F64°F
June55°F64°F72°F
July57°F64°F73°F
August57°F64°F73°F
September52°F61°F68°F
October46°F52°F57°F
November37°F44°F50°F
December32°F37°F43°F

Neris River: Water Temperature by Location

Neris River: Weather Forecast

May 15

43°F / 68°F
partly cloudy
rain: 2% | wind: 9 mph

May 16

48°F / 66°F
moderate rain
rain: 60% | wind: 9 mph

May 17

50°F / 73°F
moderate drizzle
rain: 29% | wind: 9 mph

May 18

52°F / 64°F
light drizzle
rain: 54% | wind: 11 mph

May 19

52°F / 61°F
light drizzle
rain: 44% | wind: 9 mph

Location & Local Information

Source:
• location Belarus
Mouth Neman
• coordinates 54°54′01″N 23°52′27″E
Length 510 km (320 mi)

The Neris River, flowing through central Lithuania and the capital Vilnius, experiences marked seasonal changes in water temperature. In winter the river is close to freezing, typically around 0–2 °C (32–35.6 °F), and may be partially or fully ice-covered. Spring brings gradual warming to roughly 2–10 °C (35.6–50 °F) as snowmelt and runoff increase. Early summer temperatures commonly reach 12–18 °C (53.6–64.4 °F), while peak summer months can warm surface waters to about 18–24 °C (64.4–75.2 °F) in sheltered or shallow stretches during heat waves. In autumn the river cools again to approximately 6–14 °C (42.8–57.2 °F).

Swimming in the Neris is possible and frequently enjoyed in summer, but it is not uniformly “allowed” or recommended along the whole course. Local municipalities may designate safe swimming spots with supervision, while other sections are discouraged because of variable water quality, boat traffic, strong currents, hidden debris and sudden depth changes. Water quality can fluctuate after heavy rain or due to urban runoff, so official testing results and on-site signage are the best guides. For safety and health reasons check local advisories and choose designated areas with lifeguards when planning to swim.

Nearby Rivers

Frequently Asked Questions

What is the current water temperature in the Neris River?
Water Temperature in the Neris River today is 51°F.
What is the water temperature in the Neris River during the summer months?
The water temperature in the Neris River in summer fluctuates in the range of 55°F - 73°F.
Is it possible to swim in Neris (Lithuania) and what are the possibilities for this?
Yes — you can swim in parts of the Neris River and at several officially managed beaches and informal bathing spots, as well as nearby lakes and reservoirs used for recreational swimming and watersports, but conditions vary so always check local water-quality reports, signage and lifeguard presence and avoid swimming after heavy rain or in areas with strong currents.