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Undu Bay — Current Water Temperature, Annual Trends and Forecast

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

Lake Ermistu, Estonia
Lake Ermistu, Estonia © By Toomas Mitt, CC BY-SA 3.0

Current Water Temperature

14.2°C
Today
14.2°C
Yesterday
15.3°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 Undu Bay today is 14.2°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 August 21 to September 21

Table of Daily Sea Temperature Data

Date Current Average Forecast
SEP 1415.3°C17.0°C
SEP 1515.0°C17.0°C
SEP 1615.0°C17.0°C
SEP 1714.0°C17.0°C
SEP 1814.4°C17.0°C
SEP 1914.4°C17.0°C
SEP 2014.2°C17.0°C
SEP 2114.2°C17.0°C
SEP 2217.0°C14.3°C
SEP 2317.0°C14.5°C
SEP 2417.0°C14.6°C
SEP 2517.0°C14.8°C
SEP 2617.0°C14.9°C
SEP 2717.0°C15.0°C
SEP 2817.0°C15.2°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
January0°C3°C6°C
February0°C3°C6°C
March0°C4°C7°C
April4°C8°C11°C
May8°C13°C19°C
June13°C19°C24°C
July16°C21°C26°C
August14°C20°C25°C
September11°C17°C22°C
October6°C10°C13°C
November2°C6°C10°C
December0°C4°C7°C

Undu Bay: Water Temperature by Location

Undu Bay: Weather Forecast

September 21

° / °
dense intensity drizzle
rain: 94% | wind:

September 22

° / °
mainly clear
rain: 4% | wind:

September 23

° / °
slight rain
rain: 29% | wind:

September 24

° / °
slight rain showers
rain: 31% | wind:

September 25

° / °
light drizzle
rain: 34% | wind:

September 26

° / °
dense intensity drizzle
rain: 20% | wind:

Location & Local Information

Undu Bay (Estonian: Undu laht) is a small coastal bay whose water temperatures follow the seasonal pattern typical for northern Baltic coastal waters. In winter the surface temperature is near freezing, often around 0 °C (32 °F) and frequently ice-covered; in spring it rises from about 1–10 °C (34–50 °F) as thaw and warming proceed. By summer, July and August, surface temperatures commonly reach 15–20 °C (59–68 °F), occasionally a little warmer during heat spells. In autumn the bay cools again to roughly 5–15 °C (41–59 °F) as air temperatures drop and mixing increases.

Swimming in Undu Bay is generally possible and commonly done in the ice-free months because summer temperatures are within a comfortable range for recreational bathing and public shoreline access exists. Local conditions such as wind, waves, water quality and occasional algal growth can affect safety and enjoyment, and there are typically no permanent lifeguard stations at smaller bays, so swimmers should exercise normal precautions. In winter open-water swimming is unsafe except in supervised, organised ice-swimming events, because ice cover, very cold water and hypothermia risk make casual winter bathing hazardous.

Nearby Lakes

Frequently Asked Questions

What is the current water temperature in Undu Bay?
Water Temperature in Undu Bay today is 14.2°C.
What is the water temperature in Undu Bay during the summer months?
The water temperature in Undu Bay in summer fluctuates in the range of 13°C - 26°C.
Is it possible to swim in Undu Bay (Estonia) and what are the possibilities for this?
Yes — during the warmer months you can swim in Undu Bay, making use of its shallow, sheltered inlets and small sandy or rocky shores for bathing or launching from a boat or kayak, though facilities and lifeguards are generally limited and water temperature and local conditions should be checked beforehand.