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Portmarnock, Ireland
Portmarnock, Ireland | © Amit Chopade

The most detailed information about the water temperature in Portmarnock in Irish Sea (Leinster, Ireland). Forecast of changes in water temperature for the next 10 days. Statistics by months for recent years. Information about the neighboring resorts. Weather forecast in Portmarnock for a week.

Water temperature in Portmarnock right now

data updated 8 minutes ago

56°F

yesterday: 57°F

a week ago: 56°F

Trend: slow drop

Today water temperature in Portmarnock is 56.6°F. Water of this temperature is considered cold enough. Dipping or immersion in such water is possible only for a short time. Staying in such water for more than two hours can lead to loss of consciousness. In any case, the general weather is also important. So, the air temperature at the same time will reach 61°F.

Analysis and forecast

The water temperature today is slightly lower than the average on this day in recent years. Its value has rise over the last week, but has drop compared to 20 days ago. Exactly a year ago, on this day, the water temperature in this location was 55°F. Water temperature range in Portmarnock in October is from 55 to 60 degrees.

According to our forecast, in the coming days, the water temperature value in Portmarnock will slightly drop and in 10 days it will be 53°F.

Table of water temperature values in Portmarnock

DayFact*Average**Forecast***
Oct 1913.9°C14.3°C
Oct 2013.7°C14.3°C
Oct 2114.4°C14.3°C
Oct 2213.9°C13.5°C
Oct 2314.4°C13.8°C
Oct 2414.0°C13.8°C
Oct 2513.9°C13.8°C
Oct 2613.6°C14.8°C
Oct 2713.8°C12.7°C
Oct 2814.3°C13.1°C
Oct 2913.8°C12.7°C
Oct 3014.0°C12.9°C
Oct 3114.8°C13.6°C
Nov 113.8°C12.7°C
Nov 212.8°C11.8°C
* Fact - Actual value of water temperature
** Average - Average water temperature on this day in past years
*** Forecast - Our forecast for the water temperature

Actual nearshore temperatures may vary by several degrees from the indicated values. This is noticeable after heavy rain or after prolonged periods of strong winds. Some downstream winds cause cold, deep waters to replace surface waters that have been warmed by the sun.

To develop a forecast, we use our own mathematical model, which takes into account the current change in water temperature, historical data and the main weather trends, wind strength and direction, air temperature in each specific region. We also take into account data for other resorts in Ireland.

Malahide, Ireland
Malahide, Ireland | © The Island Golf Club

Annual graph of average water temperature change in Portmarnock

Water temperature in Portmarnock by month

Portmarnock located in the northern hemisphere, at latitude 53 degrees. The water in this location never warms up to comfortable values. Average annual water temperature on the coast in Portmarnock is 53°F, by the seasons: in winter 49°F, in spring 48°F, in summer 57°F, in autumn 57°F. Minimum water temperature (46°F) in Portmarnock it happens in February, maximum (60°F) in August.

You can find out detailed data on how the water temperature in Portmarnock changes in each specific month:

Portmarnock: general information and map

Original name
Portmarnock
Continent
Country
Region
Reservoir
The local time
12:34
Timezone
UTC+1
Sunrise
08:11
Sunset
18:05
Length of the day
9 hours 53 minutes

Neighboring cities and resorts

CityWater*Distance**
Malahide57°C 3km
Portraine56°C 7km
Howth57°C 8km
Rush56°C 10km
Dublin57°C 14km
Booterstown57°C 14km
Dun Laoghaire57°C 15km
Monkstown57°C 15km
Glasthule57°C 16km
Skerries56°C 17km
Killiney58°C 18km
Balbriggan57°C 21km
* Water temperature in this place today
** Straight line distance in kilometers
Skerries, Ireland
Skerries, Ireland | © Ragnars Upenieks

The warmest water today in Ireland recorded in Brittas Bay, its value is 58°F. Lowest - in Glencolumbkille, there water temperature now 55°F. Average water temperature in the country today - 56°F.

Water temperature data in Portmarnock and neighboring towns and resorts collected from various sources, using buoys, using satellite maps of sea, river and lake surfaces of the NOAA agency.

We use data from various local authorities in each specific location of the world to more accurately reflect temperature values.

The nearest airport is located in a 9 kilometers. This is Dublin (DUB) airport. We have no information as to whether it is valid and what flights it receives or sends.

Portmarnock: weather forecast

The weather forecast is shown in local time in Portmarnock

TODAY
13:00
61°F
23km/h
feels like 58°F, Clouds (overcast clouds: 85-100%)
humidity: 80%, clouds: 100%
16:00
62°F
29km/h
feels like 61°F, Clouds (overcast clouds: 85-100%)
humidity: 73%, clouds: 100%
19:00
60°F
35km/h
feels like 59°F, Clouds (overcast clouds: 85-100%)
humidity: 74%, clouds: 100%
22:00
59°F
38km/h
feels like 59°F, Clouds (overcast clouds: 85-100%)
humidity: 79%, clouds: 100%
OCTOBER 27
01:00
60°F
35km/h
feels like 59°F, Clouds (overcast clouds: 85-100%)
humidity: 83%, clouds: 100%
04:00
60°F
35km/h
feels like 60°F, Rain (light rain)
humidity: 87%, clouds: 100%
07:00
59°F
23km/h
feels like 59°F, Rain (light rain)
humidity: 91%, clouds: 100%
10:00
60°F
24km/h
feels like 60°F, Rain (light rain)
humidity: 87%, clouds: 100%
13:00
58°F
18km/h
feels like 58°F, Rain (light rain)
humidity: 93%, clouds: 100%
16:00
59°F
25km/h
feels like 59°F, Rain (heavy intensity rain)
humidity: 92%, clouds: 100%
19:00
59°F
14km/h
feels like 58°F, Rain (light rain)
humidity: 91%, clouds: 100%
22:00
58°F
15km/h
feels like 58°F, Rain (light rain)
humidity: 92%, clouds: 100%
OCTOBER 28
01:00
58°F
14km/h
feels like 58°F, Rain (light rain)
humidity: 89%, clouds: 100%
04:00
56°F
2km/h
feels like 56°F, Clouds (overcast clouds: 85-100%)
humidity: 90%, clouds: 100%
07:00
55°F
1km/h
feels like 55°F, Clouds (overcast clouds: 85-100%)
humidity: 89%, clouds: 100%
10:00
55°F
7km/h
feels like 55°F, Rain (light rain)
humidity: 93%, clouds: 100%
13:00
53°F
11km/h
feels like 53°F, Rain (moderate rain)
humidity: 94%, clouds: 100%
16:00
53°F
12km/h
feels like 52°F, Rain (light rain)
humidity: 93%, clouds: 100%
19:00
54°F
10km/h
feels like 53°F, Rain (light rain)
humidity: 90%, clouds: 100%
22:00
54°F
12km/h
feels like 53°F, Rain (light rain)
humidity: 92%, clouds: 100%
OCTOBER 29
01:00
54°F
15km/h
feels like 53°F, Rain (light rain)
humidity: 91%, clouds: 100%
04:00
53°F
17km/h
feels like 52°F, Rain (light rain)
humidity: 82%, clouds: 100%
07:00
51°F
27km/h
feels like 49°F, Rain (light rain)
humidity: 82%, clouds: 100%
10:00
51°F
19km/h
feels like 49°F, Clouds (broken clouds: 51-84%)
humidity: 81%, clouds: 80%
13:00
53°F
16km/h
feels like 52°F, Clouds (broken clouds: 51-84%)
humidity: 73%, clouds: 82%
16:00
54°F
20km/h
feels like 53°F, Clouds (overcast clouds: 85-100%)
humidity: 73%, clouds: 100%
19:00
51°F
19km/h
feels like 50°F, Rain (light rain)
humidity: 78%, clouds: 100%
22:00
49°F
11km/h
feels like 46°F, Rain (light rain)
humidity: 80%, clouds: 99%
OCTOBER 30
01:00
49°F
10km/h
feels like 46°F, Rain (moderate rain)
humidity: 83%, clouds: 99%
04:00
49°F
14km/h
feels like 45°F, Rain (light rain)
humidity: 81%, clouds: 100%
07:00
47°F
14km/h
feels like 43°F, Clouds (broken clouds: 51-84%)
humidity: 82%, clouds: 70%
10:00
48°F
11km/h
feels like 45°F, Clear (clear sky)
humidity: 81%, clouds: 3%
13:00
52°F
14km/h
feels like 50°F, Clouds (scattered clouds: 25-50%)
humidity: 72%, clouds: 32%
16:00
52°F
13km/h
feels like 51°F, Clouds (overcast clouds: 85-100%)
humidity: 74%, clouds: 93%
19:00
50°F
9km/h
feels like 48°F, Clouds (overcast clouds: 85-100%)
humidity: 80%, clouds: 96%
22:00
49°F
6km/h
feels like 48°F, Clouds (overcast clouds: 85-100%)
humidity: 80%, clouds: 100%
OCTOBER 31
01:00
49°F
5km/h
feels like 49°F, Clouds (overcast clouds: 85-100%)
humidity: 77%, clouds: 100%
03:00
50°F
5km/h
feels like 48°F, Clouds (overcast clouds: 85-100%)
humidity: 73%, clouds: 100%
Portsalon, Ireland
Portsalon, Ireland | © तन रे TAN RAY

Find out the temperature of sea water in more than 12000 cities and resorts around the world. Water surface temperature values are available in real time. There is a forecast of water temperature changes for the next few days, as well as historical data of sea surface temperature are available for all days of the last years.

We use data from various sources, including National Centers for Environmental Information (NOAA), meteorological services of different countries, data received from more than a thousand buoys around the world, satellite systems for scanning the surface of the oceans and seas.

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