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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

16.2°C
Today
16.4°C
Yesterday
17.7°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 16.2°C.

Water Temperature: Daily Trends, Historical Records, and Forecast

⚠️ As of today, the minimum water temperature ranges from 60°F (15°C) to 65°F (18°C). The water is comfortable for most people, making it an ideal range for water sports enthusiasts. The temperature does not cause significant discomfort, and swimming will be pleasant for the majority. However, it's important to remember that prolonged exposure to the water can still lead to cooling, so it's essential to monitor the time spent in the water, especially for children or elderly people. 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 June 2 to July 3

Table of Daily Sea Temperature Data

Date Current Average Forecast
JUN 2517.7°C20.5°C
JUN 2618.3°C20.5°C
JUN 2718.7°C20.5°C
JUN 2818.7°C20.5°C
JUN 2918.3°C20.5°C
JUN 3017.2°C20.5°C
JUL 116.4°C22.1°C
JUL 216.2°C22.1°C
JUL 322.1°C16.5°C
JUL 422.1°C16.8°C
JUL 522.1°C17.1°C
JUL 622.1°C17.4°C
JUL 722.1°C17.7°C
JUL 822.1°C18.0°C
JUL 922.1°C18.3°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°C6°C9°C
February2°C6°C10°C
March3°C7°C10°C
April7°C11°C15°C
May10°C17°C22°C
June13°C21°C27°C
July16°C22°C28°C
August17°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

July 3

° / °
light drizzle
rain: 35% | wind:

July 4

° / °
light drizzle
rain: 37% | wind:

July 5

° / °
overcast
rain: 20% | wind:

July 6

° / °
overcast
rain: 29% | wind:

July 7

° / °
moderate drizzle
rain: 6% | 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 16.2°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.