The most detailed information about the water temperature in Portrush in Irish Sea (Northen Ireland, United Kingdom). 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 Portrush for a week.
Water temperature in Portrush right now
data updated 4 minutes ago47°F
yesterday: 46°F
a week ago: 47°F
Trend: slow rise
Today water temperature in Portrush is 47.1°F. In general, this water temperature is unacceptable for swimming. But hardened people can afford to be in such water for 5-10 minutes. In any case, the general weather is also important. So, the air temperature at the same time will reach 49°F.
Analysis and forecast
The water temperature today roughly corresponds to the average value 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 46°F. Water temperature range in Portrush in April is from 44 to 50 degrees.
According to our forecast, the water temperature in Portrush will slowly rise for at least the next 10 days and reach a value of 48°F.
Table of water temperature values in Portrush
| Day | Fact* | Average** | Forecast*** |
| Apr 13 | 8.1°C | 8.0°C | |
| Apr 14 | 8.3°C | 7.8°C | |
| Apr 15 | 8.2°C | 8.5°C | |
| Apr 16 | 8.7°C | 8.5°C | |
| Apr 17 | 8.9°C | 8.3°C | |
| Apr 18 | 9.2°C | 8.8°C | |
| Apr 19 | 8.3°C | 8.8°C | |
| Apr 20 | 8.4°C | 8.5°C | |
| Apr 21 | 9.0°C | 8.9°C | |
| Apr 22 | 8.3°C | 8.2°C | |
| Apr 23 | 8.5°C | 8.4°C | |
| Apr 24 | 9.0°C | 8.9°C | |
| Apr 25 | 9.3°C | 9.2°C | |
| Apr 26 | 9.0°C | 8.9°C | |
| Apr 27 | 9.0°C | 8.9°C |
** 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 United Kingdom.
Annual graph of average water temperature change in Portrush
Water temperature in Portrush by month
Portrush located in the northern hemisphere, at latitude 55 degrees. The water in this location never warms up to comfortable values. Average annual water temperature on the coast in Portrush is 51°F, by the seasons: in winter 48°F, in spring 47°F, in summer 56°F, in autumn 55°F. Minimum water temperature (44°F) in Portrush it happens in March, maximum (59°F) in August.
You can find out detailed data on how the water temperature in Portrush changes in each specific month:
Portrush: general information and map
Neighboring cities and resorts
| City | Water* | Distance** |
| Portstewart | 46°C | 4km |
| Portballintrae | 46°C | 7km |
| Castlerock | 46°C  | 9km |
| Dunseverick | 46°C | 14km |
| Moville | 47°C | 25km |
| Ballycastle | 46°C | 26km |
| Culdaff | 46°C | 34km |
| Cushendall | 47°C | 39km |
| Waterfoot | 46°C | 40km |
| Culmore | 47°C | 43km |
| Londonderry | 47°C | 47km |
| Carnlough | 46°C | 48km |
** Straight line distance in kilometers
The warmest water today in United Kingdom recorded in Leysdown On Sea, its value is 52°F. Lowest - in Boness, there water temperature now 43°F. Average water temperature in the country today - 48°F.
Water temperature data in Portrush 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 28 kilometers. This is Ballykelly (BOL) airport. We have no information as to whether it is valid and what flights it receives or sends.
Portrush: weather forecast
The weather forecast is shown in local time in Portrush
2km/hhumidity: 67%, clouds: 26%
7km/hhumidity: 63%, clouds: 29%
9km/hhumidity: 71%, clouds: 61%
7km/hhumidity: 77%, clouds: 70%
2km/hhumidity: 86%, clouds: 100%
3km/hhumidity: 85%, clouds: 76%
3km/hhumidity: 83%, clouds: 26%
6km/hhumidity: 85%, clouds: 29%
1km/hhumidity: 75%, clouds: 37%
6km/hhumidity: 67%, clouds: 37%
10km/hhumidity: 65%, clouds: 33%
9km/hhumidity: 74%, clouds: 50%
5km/hhumidity: 83%, clouds: 82%
7km/hhumidity: 84%, clouds: 92%
9km/hhumidity: 95%, clouds: 100%
8km/hhumidity: 98%, clouds: 98%
18km/hhumidity: 88%, clouds: 100%
24km/hhumidity: 85%, clouds: 96%
22km/hhumidity: 83%, clouds: 93%
21km/hhumidity: 88%, clouds: 96%
20km/hhumidity: 92%, clouds: 100%
16km/hhumidity: 90%, clouds: 84%
21km/hhumidity: 85%, clouds: 81%
20km/hhumidity: 82%, clouds: 87%
24km/hhumidity: 68%, clouds: 100%
24km/hhumidity: 65%, clouds: 96%
23km/hhumidity: 62%, clouds: 24%
20km/hhumidity: 73%, clouds: 60%
15km/hhumidity: 90%, clouds: 100%
17km/hhumidity: 87%, clouds: 99%
18km/hhumidity: 94%, clouds: 100%
17km/hhumidity: 93%, clouds: 100%
18km/hhumidity: 67%, clouds: 72%
19km/hhumidity: 63%, clouds: 58%
18km/hhumidity: 63%, clouds: 45%
