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Carrowmore Lake — Current Water Temperature, Annual Trends and Forecast

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

Carrowmore Lake, Republic of Ireland
Carrowmore Lake, Republic of Ireland © By Dr Charles Nelson, CC BY-SA 2.0

Current Water Temperature

11.5°C
Today
11.1°C
Yesterday
12.4°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 Carrowmore Lake today is 11.5°C.

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 September 13 to October 14

Table of Daily Sea Temperature Data

Date Current Average Forecast
OCT 712.4°C13.0°C
OCT 812.2°C13.0°C
OCT 911.6°C13.0°C
OCT 1011.5°C13.0°C
OCT 1111.6°C13.0°C
OCT 1211.5°C13.0°C
OCT 1311.1°C13.0°C
OCT 1411.5°C13.0°C
OCT 1513.0°C11.6°C
OCT 1613.0°C11.7°C
OCT 1713.0°C11.7°C
OCT 1813.0°C11.8°C
OCT 1913.0°C11.9°C
OCT 2013.0°C12.0°C
OCT 2113.0°C12.0°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
January1°C5°C8°C
February1°C5°C10°C
March3°C7°C10°C
April6°C10°C15°C
May10°C15°C21°C
June13°C20°C26°C
July15°C21°C27°C
August16°C22°C27°C
September13°C19°C24°C
October9°C13°C17°C
November5°C9°C12°C
December4°C7°C10°C

Carrowmore Lake: Water Temperature by Location

Carrowmore Lake: Weather Forecast

October 15

° / °
slight rain
rain: 100% | wind:

October 16

° / °
light drizzle
rain: 27% | wind:

October 17

° / °
overcast
rain: 0% | wind:

October 18

° / °
overcast
rain: 19% | wind:

October 19

° / °
overcast
rain: 16% | wind:

Location & Local Information

Carrowmore Lake, located in the unspoiled Erris region of County Mayo, is a large, shallow, freshwater lough, essential to the area as a public drinking water source. Given its position in the wild northwest, the water temperature remains quite cool throughout the year. Winter temperatures are typically cold, dropping to a range of 4∘C to 7∘C (39∘F to 45∘F). Even during the summer, Carrowmore’s shallow depth can lead to a slightly better warm-up than deep loughs, but temperatures only reach the modest range of 14∘C to 17∘C (57∘F to 63∘F).

While there are no official bathing areas on the lake, swimming is generally not prohibited in Irish lakes unless specific local restrictions are in place. However, Carrowmore's primary significance is as a Special Area of Conservation and a crucial source of public drinking water, which often discourages recreational swimming to protect water quality. The lough is most renowned as a destination for game fishing, especially for its prized salmon and sea trout. Nearby attractions that embrace the wild scenery include the breathtaking coastal views of Benwee Head and the Bangor Trail, offering spectacular hiking opportunities.

Nearby Lakes

Frequently Asked Questions

What is the current water temperature in Carrowmore Lake?
Water Temperature in Carrowmore Lake today is 11.5°C.
What is the water temperature in Carrowmore Lake during the summer months?
The water temperature in Carrowmore Lake in summer fluctuates in the range of 13°C - 27°C.
Is it possible to swim in Carrowmore Lake (Republic of Ireland) and what are the possibilities for this?
Yes — Carrowmore Lake is suitable for swimming, primarily as wild or open‑water swims from accessible shorelines or by boat with occasional local events or informal spots, but swimmers should confirm land access, water quality, weather and safety arrangements before entering.