Llanelli Sea Temperature in May

Looking to find out what the average sea water temperature in Llanelli is for May? Find out what the lowest, highest, and average water temperatures are for Llanelli over the past 10 years.

Average water temperature in Llanelli for May

The average, high, and low temperatures below should help you if you can swim in the water in Llanelli in May.

Average

11.81° C

53.26° F

High

14.17° C

57.51° F

Low

9.31° C

48.76° F

Water temperature range by day in May in Llanelli

The chart below shows the range of low and high temperatures by day for the month of May in Llanelli.

Average daily water temperatures in Llanelli for May

Day	Average	Low	High
1	10.61° C	9.31° C	11.88° C
2	10.7° C	9.32° C	11.95° C
3	10.78° C	9.77° C	12.05° C
4	10.91° C	9.66° C	12.35° C
5	10.88° C	9.8° C	11.98° C
6	10.98° C	9.91° C	12.02° C
7	11.03° C	9.62° C	12.24° C
8	11.03° C	9.71° C	12.17° C
9	11.13° C	10.2° C	12.1° C
10	11.21° C	10.27° C	12.41° C
11	11.2° C	9.9° C	12.52° C
12	11.38° C	10.08° C	12.58° C
13	11.46° C	10.41° C	12.63° C
14	11.57° C	10.45° C	13.06° C
15	11.57° C	10.53° C	12.82° C
16	11.7° C	10.45° C	12.91° C
17	11.87° C	10.59° C	13.04° C
18	12.04° C	10.76° C	13.28° C
19	12.15° C	10.47° C	13.32° C
20	12.2° C	10.65° C	13.59° C
21	12.25° C	10.85° C	13.66° C
22	12.31° C	11.08° C	13.83° C
23	12.36° C	11.21° C	13.75° C
24	12.45° C	11.24° C	13.62° C
25	12.62° C	11.32° C	13.62° C
26	12.71° C	11.28° C	13.7° C
27	12.83° C	11.39° C	13.84° C
28	12.94° C	11.67° C	13.9° C
29	13.02° C	11.95° C	13.82° C
30	13.05° C	11.32° C	14.04° C
31	13.29° C	12.09° C	14.17° C

Water temperature in May for locations near Llanelli

Data source and citation

Raw data for the calculations made to find the sea surface temperature in Llanelli comes from the National Oceanic and Atmospheric Administration (NOAA) and their 1/4° daily Optimum Interpolation Sea Surface Temperature.

The water temperature data is constructed by combining observations from different platforms (satellites, ships, buoys, and Argo floats) on a regular global grid. A spatially complete sea surface temperature map is then built by interpolating to fill in gaps in the data.

If you'd like to use any of the information above in the format it is presented, please use the citation tool below.

Average water temperature in Llanelli for May

Average

High

Low

Water temperature range by day in May in Llanelli

Average daily water temperatures in Llanelli for May

Water temperature in May for locations near Llanelli

Gower

Broughton Bay

Llangennith

Tor Bay

Three Cliffs Bay

Pobbles Bay

Oxwich

Caswell Bay

Brandy Cove

Rhossili

Port Eynon

Mewslade

Mumbles

Rotherslade

Langland Bay

Swansea

Limeslade Bay

Bracelet Bay

Llansteffan

Port Talbot

Pendine

Saundersfoot

Tenby

Porthcawl

Ogmore-by-Sea

Data source and citation