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Athlone — Current Water Temperature, Annual Trends and Forecast

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

Athlone, Republic of Ireland
Athlone, Republic of Ireland © By Ingo Mehling, CC BY-SA 3.0

Current Water Temperature

19.1°C
Today
19.6°C
Yesterday
20.4°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 Athlone today is 19.1°C.

Water Temperature: Daily Trends, Historical Records, and Forecast

⚠️ As of today, the minimum water temperature ranges from 65°F (18°C) to 68°F (20°C). This is already quite warm water, which is ideal for most people. Swimming becomes comfortable, and prolonged stays in the water do not cause discomfort. This temperature is perfect for family trips and for those who prefer warmer water. It is also comfortable for water sports such as surfing or swimming. 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 22 to July 23

Table of Daily Sea Temperature Data

Date Current Average Forecast
JUL 1620.4°C19.0°C
JUL 1720.5°C19.0°C
JUL 1820.5°C19.0°C
JUL 1920.4°C19.0°C
JUL 2020.5°C19.0°C
JUL 2120.1°C19.0°C
JUL 2219.6°C19.0°C
JUL 2319.2°C19.0°C
JUL 2419.0°C19.1°C
JUL 2519.0°C19.1°C
JUL 2619.0°C19.1°C
JUL 2719.0°C19.1°C
JUL 2819.0°C19.1°C
JUL 2919.0°C19.1°C
JUL 3019.0°C19.1°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°C8°C
March2°C6°C9°C
April6°C9°C12°C
May9°C14°C18°C
June13°C19°C23°C
July15°C19°C24°C
August14°C18°C23°C
September11°C16°C20°C
October9°C12°C15°C
November4°C7°C11°C
December1°C5°C8°C

Athlone: Weather Forecast

July 24

° / °
overcast
rain: 11% | wind:

July 25

° / °
light drizzle
rain: 41% | wind:

July 26

° / °
light drizzle
rain: 27% | wind:

July 27

° / °
light drizzle
rain: 53% | wind:

Location & Local Information

Athlone, a vibrant town in the heart of Ireland, sits on the banks of the River Shannon, where the wide, steady waters flow south from Lough Ree. The river’s temperature in this area reflects Ireland’s mild inland climate. During winter, the water usually stays between 4–6°C (39–43°F), while in summer it warms to around 15–18°C (59–64°F). On warm, sunny days in July or August, shallow stretches and sheltered areas can briefly reach 19°C (66°F), though the main channel remains cooler. These moderate temperatures make the water refreshing but suitable for swimming during the warmer months, particularly from late May through early September, when air temperatures are also comfortable.

Swimming in the River Shannon at Athlone is allowed and increasingly popular, especially near supervised or recognized entry points. Local open-water groups often swim in the town stretch during summer, taking advantage of the calm, clean water. Safety precautions are important, as currents can vary and boats frequently use the navigation channel. Many swimmers wear wetsuits to extend their season beyond midsummer. Beyond the river, Athlone offers rich attractions including Athlone Castle, scenic riverside walks, and the nearby Lough Ree, known for boating and fishing. Together, they make Athlone an appealing destination for both recreation and culture.

Nearby Locations

Frequently Asked Questions

What is the current water temperature in Athlone?
Water Temperature in Athlone today is 19.1°C.
What is the water temperature in Athlone during the summer months?
The water temperature in Athlone in summer fluctuates in the range of 13°C - 24°C.
Is it possible to swim in Athlone (Republic of Ireland) in River Shannon and what are the possibilities for this?
Yes — you can swim in the River Shannon at Athlone, mainly by using informal wild‑swimming spots, sheltered inlets or organised club/supervised swims rather than formal bathing areas, but you should check recent water quality, be wary of currents, boats and underwater hazards, and preferably swim with others or under supervision.