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Portnoo
Water Temperature in the Atlantic Ocean in Portnoo, Ireland: Current, Historical Data and Forecast
On this page, you will find comprehensive information about the sea temperature in Portnoo in Ireland, including current readings, historical data and trends, monthly averages, as well as weather forecasts and upcoming temperature predictions. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.
Current Water Temperature in Portnoo
7.5°C
TODAY
7.4°C
YESTERDAY
8.1°C
A WEEK AGO
Analysis, Historical Data, and Forecast of Water Temperature
Today sea water temperature in the Atlantic Ocean in Portnoo is 7.5°C. This water temperature is still quite low, and swimming in such conditions may only be comfortable for hardened individuals. It is recommended to limit the time spent in the water to avoid hypothermia. For those not accustomed to cold water, it is better to refrain from swimming. However, if you decide to enter the water, it is advisable to wear a warm wetsuit for protection against the cold.
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 for Atlantic Ocean in Portnoo Over the Last 30 Days
The water temperature in Portnoo today is lower than both a week ago and a month ago. Today's sea temperature is generally in line with historical values for this day.
According to our forecast, the sea temperature in Portnoo will remain nearly unchanged in the coming days, its value will be 8.2°C.
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 across Ireland to enhance accuracy.
Water temperature data for Portnoo and nearby towns and resorts 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.
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| Feb 16 | 8.1°C | 8.8°C | |
| Feb 17 | 7.8°C | 8.3°C | |
| Feb 18 | 7.6°C | 8.0°C | |
| Feb 19 | 7.7°C | 8.0°C | |
| Feb 20 | 7.1°C | 8.3°C | |
| Feb 21 | 7.3°C | 8.0°C | |
| Feb 22 | 7.4°C | 8.8°C | |
| Feb 23 | 7.5°C | 8.3°C | |
| Feb 24 | 9.0°C | 7.7°C | |
| Feb 25 | 8.8°C | 7.8°C | |
| Feb 26 | 8.0°C | 7.8°C | |
| Feb 27 | 8.3°C | 7.9°C | |
| Feb 28 | 8.3°C | 7.9°C | |
| Mar 1 | 8.8°C | 8.0°C | |
| Mar 2 | 9.5°C | 8.2°C | |
| Mar 3 | 8.3°C | 8.2°C |
Sea Temperature in Portnoo Throughout the Year
Throughout the year, the sea temperature in Portnoo never exceeds 64°F (18°C).
Below is the annual chart of sea temperature changes in the Atlantic Ocean in Portnoo.
January
| Minimum | Average | Maximum |
|---|---|---|
| 7°C | 9.5°C | 12°C |
February
| Minimum | Average | Maximum |
|---|---|---|
| 7°C | 9°C | 11°C |
March
| Minimum | Average | Maximum |
|---|---|---|
| 7°C | 9°C | 11°C |
April
| Minimum | Average | Maximum |
|---|---|---|
| 8°C | 9.5°C | 11°C |
May
| Minimum | Average | Maximum |
|---|---|---|
| 9°C | 11°C | 13°C |
June
| Minimum | Average | Maximum |
|---|---|---|
| 10°C | 13.5°C | 17°C |
July
| Minimum | Average | Maximum |
|---|---|---|
| 12°C | 15.5°C | 19°C |
August
| Minimum | Average | Maximum |
|---|---|---|
| 13°C | 15°C | 17°C |
September
| Minimum | Average | Maximum |
|---|---|---|
| 13°C | 15°C | 17°C |
October
| Minimum | Average | Maximum |
|---|---|---|
| 11°C | 13.5°C | 16°C |
November
| Minimum | Average | Maximum |
|---|---|---|
| 10°C | 12°C | 14°C |
December
| Minimum | Average | Maximum |
|---|---|---|
| 9°C | 10.5°C | 12°C |
Monthly Water Temperature Histogram for Atlantic Ocean in Portnoo
You can explore detailed data on how the water temperature in Portnoo varies each month:
What Beaches Are There In and Around Portnoo?
Narin Beach
Narin Beach is a 5-stars sandy beach, is located directly in Portnoo. It has been awarded the prestigious Blue Flag, ensuring high environmental and quality standards. There are lifeguards on the beach. There is parking. There are restrooms. There are cafés. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Kiltoorish Bay Beach
Kiltoorish Bay Beach is a 1-stars sandy beach, located in a 4 km (2 miles) radius of Portnoo.
Ballinreavy Strand
Ballinreavy Strand is a 1-stars pebble beach, located in a 5 km (3 miles) radius of Portnoo. There is parking.
Dooey Beach
Dooey Beach is a 3-stars sandy beach, located in a 6 km (4 miles) radius of Portnoo. There is parking. It is suitable for surfing. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Portnoo Weather
FEBRUARY 24
4°C / 8°C
light rainhumidity: 83% | wind: 5 km/h
FEBRUARY 25
3°C / 7°C
overcast clouds: 85-100%humidity: 88% | wind: 4 km/h
FEBRUARY 26
3°C / 8°C
light rainhumidity: 78% | wind: 2 km/h
Sea Temperature in the Atlantic Ocean in Portnoo: General Trends and Swimming Opportunities
Ulster, Ireland's coastal areas have a tempered maritime climate characterized by mild winters and cool summers. There's significant rainfall distributed throughout the year, with slightly drier conditions during late spring and early summer.
Portnoo is located in Europe in the Northern Hemisphere at a latitude of 55 degrees, along the shores of the Atlantic Ocean. Portnoo lies within the Ulster in Ireland.
The average annual daytime air temperature in Portnoo is 13°C (55°F), with the average nighttime temperature being 7°C (45°F). The highest average daily temperature occurs in July, reaching 18°C (65°F), while the lowest is in January at 8°C (46°F). As for nighttime temperatures, the minimum average temperature of 3°C (37°F) is recorded in February, and the maximum is in August, reaching 12°C (53°F).
According to historical data, Portnoo experiences 189 rainy days per year, which accounts for 52 percent of all days in the year. On average, there are 16 rainy days each month. The wettest month is January, with 18 rainy days and 122 mm (4.8 inches) of precipitation, while the driest month is April, which typically has 13 rainy days and only 70 mm (2.7 inches) of precipitation.
The average annual water temperature in Atlantic Ocean in Portnoo is 12°C (54°F). In January, the water reaches its lowest point of the year at 7°C (45°F), while in July, it peaks at 19°C (66°F). In Portnoo, the water temperature in the Atlantic Ocean never consistently reaches a comfortable level for swimming in any month.
Geographical Location of Portnoo
Nearby Cities
Frequently Asked Questions About Portnoo and its Water Temperatures
What is the current sea temperature in Portnoo?
The water temperature today in the Atlantic Ocean in Portnoo is 46°F (7.5°C).
In which months is the water temperature in Portnoo comfortable for swimming?
It cannot be guaranteed that the water temperature in Portnoo will be comfortable for swimming in any month of the year.
What is the water temperature in Portnoo during the winter?
The water temperature in the Atlantic Ocean in Portnoo during the winter ranges from 7°C to 12°C (45°F to 54°F).
What is the water temperature in Portnoo during the spring?
The water temperature in the Atlantic Ocean in Portnoo during the spring ranges from 7°C to 13°C (45°F to 55°F).
What is the water temperature in Portnoo during the summer?
The water temperature in the Atlantic Ocean in Portnoo during the summer ranges from 10°C to 19°C (50°F to 66°F).
What is the water temperature in Portnoo during the fall?
The water temperature in the Atlantic Ocean in Portnoo during the fall ranges from 10°C to 17°C (50°F to 63°F).
Is it possible to swim in the sea in Portnoo at any time of the year?
In Portnoo, the Atlantic Ocean is quite cold, and swimming is almost impossible as the water temperature never reaches 21°C (70°F).
Is Portnoo a popular tourist destination for beach vacations?
Portnoo has a moderate level of popularity for beach vacations; while it does receive some visitors, it is not among the top seaside destinations, as other locations may offer more favorable conditions.
What sea temperatures can I expect in Portnoo in the next month?
In March, the water temperature in the Atlantic Ocean in Portnoo will range between 45°F (7°C) and 52°F (11°C)