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Untersee — Current Water Temperature, Annual Trends and Forecast

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

Hallstätter See, Austria
Hallstätter See, Austria © By Tigerente, CC BY-SA 4.0

Current Water Temperature

13.5°C
Today
12.3°C
Yesterday
12.2°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 Untersee today is 13.5°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 9 to October 10

Table of Daily Sea Temperature Data

Date Current Average Forecast
OCT 312.2°C10.0°C
OCT 412.2°C10.0°C
OCT 512.1°C10.0°C
OCT 612.9°C10.0°C
OCT 712.3°C10.0°C
OCT 812.3°C10.0°C
OCT 912.3°C10.0°C
OCT 1013.8°C10.0°C
OCT 1110.0°C13.3°C
OCT 1210.0°C13.2°C
OCT 1310.0°C13.0°C
OCT 1410.0°C12.8°C
OCT 1510.0°C12.6°C
OCT 1610.0°C12.5°C
OCT 1710.0°C12.3°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
January2°C4°C6°C
February3°C5°C7°C
March3°C5°C8°C
April3°C7°C11°C
May5°C11°C18°C
June7°C14°C22°C
July10°C17°C24°C
August16°C21°C26°C
September8°C14°C21°C
October5°C10°C15°C
November5°C8°C11°C
December2°C5°C8°C

Untersee: Weather Forecast

October 11

° / °
slight rain showers
rain: 40% | wind:

October 12

° / °
overcast
rain: 38% | wind:

October 13

° / °
slight rain
rain: 16% | wind:

October 14

° / °
slight rain
rain: 23% | wind:

October 15

° / °
partly cloudy
rain: 13% | wind:

Location & Local Information

Untersee, located near the Hallstätter See in Austria, is a picturesque area offering easy access to the clear, pristine waters of the lake. Hallstätter See, known for its breathtaking beauty, is one of the cleanest and most scenic lakes in the country. The water temperature of the lake fluctuates depending on the season, with average temperatures ranging from 8°C (46°F) in early spring to around 20°C (68°F) during the peak summer months. The lake's cold temperatures in spring and autumn make swimming less comfortable during those seasons, but in summer, the water becomes inviting and refreshing, ideal for swimming and other water activities.

During the summer, swimming in the Hallstätter See is quite popular, as the lake’s water is clean and clear, making it a favorite spot for both locals and tourists. The area around Untersee offers several designated swimming areas along the lakeshore, complete with scenic views of the surrounding mountains. However, visitors should be cautious as the lake can be quite deep, and the water can be colder than expected, especially in the early summer months. It is always best to check local conditions before swimming and be mindful of safety while enjoying the lake’s natural beauty.

Nearby Locations

Frequently Asked Questions

What is the current water temperature in Untersee?
Water Temperature in Untersee today is 13.5°C.
What is the water temperature in Untersee during the summer months?
The water temperature in Untersee in summer fluctuates in the range of 7°C - 26°C.
Is it possible to swim in the Hallstätter See in Untersee, and what are the available options for doing so?
Yes, it's possible to swim in the Hallstätter See in Untersee. You can freely swim in designated areas or utilize local beach pools and boat rental services.