Baltimore — Water Temperature, Sea Conditions & Trends
This page provides clear and up-to-date information about water temperature for Baltimore (Munster, Republic of Ireland). It includes the current water temperature, daily data for the last month presented in a simple chart, and a 7-day forecast. The page also compares today’s value with typical averages for this period, shows usual monthly ranges during the year, and lists nearby beaches with short descriptions. Local weather for the next few days and general details about Baltimore help you plan your visit and choose the best time for swimming.
Current Water Temperature
Water temperature in Baltimore in the Atlantic Ocean today is 18°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
Water temperature in Baltimore has risen over the last week and month. Currently, the sea water at this location is slightly warmer than average for this day in previous years.
According to our forecast, Water temperature in Baltimore will be 17.2°C in the next 7 days. See the table below for daily data for the upcoming week.
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| JUL 11 | 15.3°C | 15.3°C | |
| JUL 12 | 15.5°C | 16.0°C | |
| JUL 13 | 16.8°C | 16.0°C | |
| JUL 14 | 17.3°C | 16.3°C | |
| JUL 15 | 17.4°C | 16.3°C | |
| JUL 16 | 17.6°C | 16.8°C | |
| JUL 17 | 18.0°C | 16.5°C | |
| JUL 18 | 17.9°C | 16.8°C | |
| JUL 19 | 18.1°C | 16.8°C | 18.1°C |
| JUL 20 | 16.5°C | 18.0°C | |
| JUL 21 | 16.3°C | 17.8°C | |
| JUL 22 | 16.8°C | 17.7°C | |
| JUL 23 | 16.8°C | 17.6°C | |
| JUL 24 | 16.8°C | 17.5°C | |
| JUL 25 | 16.8°C | 17.3°C | |
| JUL 26 | 17.3°C | 17.2°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.
Water temperature data for this location is gathered from various sources, including buoys and satellite sea and ocean surface maps provided by the NOAA agency. We also incorporate data from local authorities in each specific location worldwide to ensure more accurate temperature readings.
Annual Water Temperature Overview by Month
Monthly Water Temp Ranges
Annual Water Temperature Trend
Baltimore, a small harbour village on the south-west coast of County Cork in Munster, sits amid a landscape of islands, sheltered bays and rocky headlands. The local sea is part of Roaringwater Bay and North Atlantic influences keep temperatures cool through the year. Seasonal water temperatures typically range from around 7–9 °C in the coldest winter months, rising to about 9–12 °C in spring. In summer the sea warms to roughly 14–17 °C at its warmest, while autumn sees a gradual decline to around 11–14 °C. Shallow, sheltered inlets can be a degree or two warmer on calm days, while exposed Atlantic-facing shores remain a little cooler. These averages give a realistic picture of what to expect for swimming and other water activities throughout the year.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Min | Avg | Max |
|---|---|---|---|
| January | 8°C | 10°C | 12°C |
| February | 8°C | 9°C | 11°C |
| March | 8°C | 9°C | 11°C |
| April | 8°C | 10°C | 12°C |
| May | 9°C | 12°C | 14°C |
| June | 11°C | 14°C | 17°C |
| July | 13°C | 16°C | 20°C |
| August | 13°C | 16°C | 19°C |
| September | 13°C | 15°C | 19°C |
| October | 12°C | 14°C | 16°C |
| November | 10°C | 12°C | 15°C |
| December | 9°C | 11°C | 13°C |
* Click on a month to view detailed water temperature data.
Baltimore: Weather Forecast
July 20
July 21
July 22
Location, Beaches & Local Information
Nearby Beaches & Facilities
Sherkin Island
Tralispeen Bay Beach
Bawnlahan Bay Beach
Tragumna Beach
Audley Cove
Foilnamuck Bay Beach
Lickowen Bay Beach
Swimming Conditions
Swimming around Baltimore is best approached with those temperature realities in mind: short swims or cautious wading are common in summer when the water is at its warmest, and many visitors and locals use wetsuits for longer or open-water swims outside the warmest weeks. The area offers a mix of pebble and sandy shorelines, quiet coves and calm harbour waters that are attractive for family swims on mild days, as well as more adventurous open-water routes between islands. Tides, local currents and boat traffic can affect conditions, so swimmers are advised to choose sheltered spots, check weather and tidal forecasts and consider guided or supervised options if unfamiliar with the area. The combination of scenic coastline and accessible water makes Baltimore a rewarding destination for a beach or swim-focused holiday, provided one plans for cool sea temperatures.