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Amlwch, United Kingdom
Amlwch, United Kingdom | © Darren Jervis

The most detailed information about the water temperature in Swansea in Celtic Sea (Wales, 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 Swansea for a week.

Water temperature in Swansea right now

data updated 7 minutes ago

48°F

yesterday: 48°F

a week ago: 47°F

Trend: slow rise

Today water temperature in Swansea is 48.7°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 46°F.

Analysis and forecast

The water temperature today roughly corresponds to the average value on this day in recent years. Its value has rise both over the past 20 days and over the past week. Exactly a year ago, on this day, the water temperature in this location was 46°F. Water temperature range in Swansea in March is from 42 to 50 degrees.

According to our forecast, the water temperature in Swansea will slowly rise for at least the next 10 days and reach a value of 50°F.

Table of water temperature values in Swansea

DayFact*Average**Forecast***
Mar 218.7°C8.3°C
Mar 228.5°C8.0°C
Mar 238.9°C8.0°C
Mar 249.2°C8.3°C
Mar 259.1°C8.5°C
Mar 268.2°C8.0°C
Mar 279.3°C8.5°C
Mar 289.3°C8.5°C
Mar 298.3°C9.1°C
Mar 308.3°C9.1°C
Mar 318.3°C9.1°C
Apr 18.5°C9.3°C
Apr 28.5°C9.3°C
Apr 39.0°C9.8°C
Apr 48.3°C9.1°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 United Kingdom.

South Stack, United Kingdom
South Stack, United Kingdom | © Filip Stepien

Annual graph of average water temperature change in Swansea

Water temperature in Swansea by month

Swansea located in the northern hemisphere, at latitude 51 degrees. The water in this location never warms up to comfortable values. Average annual water temperature on the coast in Swansea is 54°F, by the seasons: in winter 48°F, in spring 49°F, in summer 60°F, in autumn 59°F. Minimum water temperature (45°F) in Swansea it happens in January, maximum (64°F) in August.

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

Swansea: general information and map

Original name
Swansea
Continent
Region
Reservoir
The local time
13:00
Timezone
UTC
Sunrise
05:58
Sunset
18:41
Length of the day
12 hours 42 minutes

Neighboring cities and resorts

CityWater*Distance**
Briton Ferry49°C 8km
Port Talbot49°C 12km
Llanelli49°C 17km
Burry Port49°C 23km
Porthcawl48°C 23km
Southerndown48°C 29km
Ferryside48°C 34km
Llansteffan49°C 35km
Laugharne48°C 39km
Heddon's Mouth48°C 43km
Lynmouth49°C 44km
Woody Bay49°C 44km
* Water temperature in this place today
** Straight line distance in kilometers
Trefor, United Kingdom
Trefor, United Kingdom | © David Andrew

The warmest water today in United Kingdom recorded in Mevagissey, its value is 51°F. Lowest - in Burntisland, there water temperature now 41°F. Average water temperature in the country today - 46°F.

Water temperature data in Swansea 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 8 kilometers. This is Swansea (SWS) airport. We have no information as to whether it is valid and what flights it receives or sends.

Swansea: weather forecast

The weather forecast is shown in local time in Swansea

TODAY
15:00
46°F
28km/h
feels like 39°F, Rain (light rain)
humidity: 85%, clouds: 86%
18:00
45°F
53km/h
feels like 35°F, Rain (light rain)
humidity: 89%, clouds: 90%
21:00
46°F
37km/h
feels like 38°F, Rain (light rain)
humidity: 78%, clouds: 36%
MARCH 29
00:00
44°F
15km/h
feels like 38°F, Clouds (scattered clouds: 25-50%)
humidity: 87%, clouds: 50%
03:00
45°F
24km/h
feels like 38°F, Rain (light rain)
humidity: 90%, clouds: 93%
06:00
45°F
25km/h
feels like 38°F, Rain (light rain)
humidity: 88%, clouds: 96%
09:00
47°F
27km/h
feels like 41°F, Rain (light rain)
humidity: 87%, clouds: 81%
12:00
49°F
29km/h
feels like 43°F, Rain (light rain)
humidity: 77%, clouds: 63%
15:00
49°F
33km/h
feels like 42°F, Rain (light rain)
humidity: 81%, clouds: 75%
18:00
47°F
36km/h
feels like 40°F, Rain (light rain)
humidity: 83%, clouds: 42%
21:00
46°F
27km/h
feels like 39°F, Rain (light rain)
humidity: 88%, clouds: 44%
MARCH 30
00:00
44°F
19km/h
feels like 38°F, Rain (light rain)
humidity: 88%, clouds: 37%
03:00
44°F
15km/h
feels like 38°F, Rain (light rain)
humidity: 87%, clouds: 13%
06:00
42°F
14km/h
feels like 37°F, Rain (light rain)
humidity: 90%, clouds: 43%
09:00
47°F
19km/h
feels like 41°F, Rain (light rain)
humidity: 84%, clouds: 30%
12:00
50°F
20km/h
feels like 48°F, Rain (light rain)
humidity: 76%, clouds: 26%
15:00
50°F
31km/h
feels like 49°F, Rain (light rain)
humidity: 78%, clouds: 79%
18:00
49°F
27km/h
feels like 43°F, Rain (light rain)
humidity: 85%, clouds: 77%
21:00
47°F
27km/h
feels like 40°F, Rain (light rain)
humidity: 90%, clouds: 92%
MARCH 31
00:00
47°F
27km/h
feels like 40°F, Rain (light rain)
humidity: 90%, clouds: 96%
04:00
47°F
32km/h
feels like 39°F, Rain (light rain)
humidity: 92%, clouds: 100%
07:00
47°F
28km/h
feels like 41°F, Rain (light rain)
humidity: 91%, clouds: 100%
10:00
48°F
27km/h
feels like 42°F, Rain (light rain)
humidity: 87%, clouds: 100%
13:00
51°F
28km/h
feels like 49°F, Clouds (overcast clouds: 85-100%)
humidity: 82%, clouds: 100%
16:00
53°F
24km/h
feels like 51°F, Clouds (overcast clouds: 85-100%)
humidity: 79%, clouds: 100%
19:00
50°F
23km/h
feels like 49°F, Clouds (overcast clouds: 85-100%)
humidity: 82%, clouds: 100%
22:00
48°F
22km/h
feels like 42°F, Clouds (scattered clouds: 25-50%)
humidity: 88%, clouds: 38%
APRIL 1
01:00
48°F
19km/h
feels like 43°F, Clouds (scattered clouds: 25-50%)
humidity: 85%, clouds: 47%
04:00
47°F
15km/h
feels like 42°F, Clouds (overcast clouds: 85-100%)
humidity: 87%, clouds: 97%
07:00
45°F
12km/h
feels like 41°F, Clouds (overcast clouds: 85-100%)
humidity: 89%, clouds: 96%
10:00
47°F
9km/h
feels like 44°F, Clouds (overcast clouds: 85-100%)
humidity: 83%, clouds: 99%
13:00
51°F
15km/h
feels like 49°F, Clouds (overcast clouds: 85-100%)
humidity: 78%, clouds: 100%
16:00
50°F
22km/h
feels like 49°F, Rain (light rain)
humidity: 81%, clouds: 100%
19:00
48°F
20km/h
feels like 43°F, Clouds (overcast clouds: 85-100%)
humidity: 82%, clouds: 100%
22:00
45°F
14km/h
feels like 40°F, Clouds (overcast clouds: 85-100%)
humidity: 84%, clouds: 96%
APRIL 2
01:00
46°F
16km/h
feels like 41°F, Clouds (broken clouds: 51-84%)
humidity: 84%, clouds: 76%
04:00
46°F
15km/h
feels like 42°F, Clouds (overcast clouds: 85-100%)
humidity: 88%, clouds: 100%
07:00
47°F
20km/h
feels like 42°F, Rain (light rain)
humidity: 91%, clouds: 100%
10:00
49°F
23km/h
feels like 44°F, Rain (light rain)
humidity: 87%, clouds: 48%
Abereiddy, United Kingdom
Abereiddy, United Kingdom | © Martyn Northall

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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