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Lough Beltra — Current Water Temperature, Annual Trends and Forecast

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

Lough Beltra, Republic of Ireland
Lough Beltra, Republic of Ireland © By Oliver Dixon, CC BY-SA 2.0

Current Water Temperature

13.5°C
Today
12.8°C
Yesterday
13.9°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 Lough Beltra 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 August 23 to September 23

Table of Daily Sea Temperature Data

Date Current Average Forecast
SEP 1613.9°C19.0°C
SEP 1714.2°C19.0°C
SEP 1813.5°C19.0°C
SEP 1913.7°C19.0°C
SEP 2013.5°C19.0°C
SEP 2113.5°C19.0°C
SEP 2212.8°C19.0°C
SEP 2313.5°C19.0°C
SEP 2419.0°C13.8°C
SEP 2519.0°C14.1°C
SEP 2619.0°C14.3°C
SEP 2719.0°C14.6°C
SEP 2819.0°C14.9°C
SEP 2919.0°C15.2°C
SEP 3019.0°C15.4°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
January2°C6°C9°C
February2°C6°C10°C
March3°C7°C10°C
April7°C11°C15°C
May10°C17°C22°C
June13°C21°C27°C
July15°C22°C28°C
August16°C22°C27°C
September13°C19°C24°C
October10°C14°C18°C
November5°C9°C12°C
December2°C6°C10°C

Lough Beltra: Water Temperature by Location

Lough Beltra: Weather Forecast

September 23

° / °
light drizzle
rain: 37% | wind:

September 24

° / °
moderate drizzle
rain: 82% | wind:

September 25

° / °
overcast
rain: 33% | wind:

September 26

° / °
dense intensity drizzle
rain: 71% | wind:

September 27

° / °
moderate rain
rain: 72% | wind:

Location & Local Information

Lough Beltra in County Mayo, famous for its excellent salmon and sea trout fishing, maintains a cold temperature profile throughout the year due to its location and size. As an Irish freshwater lough, its surface temperature varies seasonally. In the peak of summer, typically August, the water can reach its warmest range, likely between 15∘C and 18∘C (59∘F to 64∘F), while winter temperatures will plummet to between 5∘C and 9∘C (41∘F to 48∘F), requiring caution or a wetsuit for those venturing in.

Swimming is not officially prohibited, aligning with the practice of wild swimming across Ireland, but Lough Beltra is not designated as a bathing area. The lack of public facilities and the focus on angling and fish conservation means swimming is a less common activity here, and safety should be prioritized due to the cold water and the deep nature of the lough. For visitors, the area is an ideal base for exploring the Wild Atlantic Way and the Great Western Greenway, a popular off-road cycling and walking trail that starts nearby in the town of Newport.

Nearby Lakes

Frequently Asked Questions

What is the current water temperature in Lough Beltra?
Water Temperature in Lough Beltra today is 13.5°C.
What is the water temperature in Lough Beltra during the summer months?
The water temperature in Lough Beltra in summer fluctuates in the range of 13°C - 28°C.
Is it possible to swim in Lough Beltra (Republic of Ireland) and what are the possibilities for this?
Yes — you can swim in Lough Beltra, either from accessible stretches of shoreline or by boat where landings are permitted, but the water is often cold, weather and currents can change quickly, parts of the shore are privately owned, and you should confirm access and take appropriate safety precautions.