Port Isaac Sea Temperature in December

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

Average water temperature in Port Isaac for December

The average, high, and low temperatures below should help you if you can swim in the water in Port Isaac in December.

Average

11.57° C

52.82° F

High

13.22° C

55.8° F

Low

9.78° C

49.6° F

Water temperature range by day in December in Port Isaac

The chart below shows the range of low and high temperatures by day for the month of December in Port Isaac.

Average daily water temperatures in Port Isaac for December

Day	Average	Low	High
1	12.54° C	11.71° C	13.22° C
2	12.42° C	11.67° C	13.11° C
3	12.36° C	11.73° C	12.99° C
4	12.31° C	11.78° C	12.81° C
5	12.31° C	11.85° C	12.78° C
6	12.26° C	11.8° C	12.74° C
7	12.2° C	11.73° C	12.68° C
8	12.13° C	11.41° C	12.54° C
9	12.01° C	11.52° C	12.36° C
10	11.89° C	11.48° C	12.24° C
11	11.78° C	11.29° C	12.16° C
12	11.68° C	11.24° C	12.22° C
13	11.63° C	11.05° C	12.22° C
14	11.58° C	11.08° C	11.92° C
15	11.55° C	11.15° C	11.82° C
16	11.43° C	10.83° C	12.07° C
17	11.39° C	10.86° C	12.05° C
18	11.36° C	10.54° C	12.15° C
19	11.24° C	9.87° C	12.06° C
20	11.28° C	9.91° C	12° C
21	11.28° C	10.07° C	12.27° C
22	11.21° C	10.18° C	11.91° C
23	11.09° C	10.18° C	11.8° C
24	10.98° C	10.02° C	11.74° C
25	10.93° C	9.95° C	11.56° C
26	10.94° C	9.78° C	11.65° C
27	11.04° C	10.28° C	11.69° C
28	10.97° C	10.37° C	11.77° C
29	11.03° C	10.18° C	11.95° C
30	10.91° C	10.2° C	11.92° C
31	10.88° C	10.18° C	11.71° C

Water temperature in December for locations near Port Isaac

Data source and citation

Raw data for the calculations made to find the sea surface temperature in Port Isaac 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 Port Isaac for December

Average

High

Low

Water temperature range by day in December in Port Isaac

Average daily water temperatures in Port Isaac for December

Water temperature in December for locations near Port Isaac

Polzeath

Wadebridge

Tintagel

Padstow

Boscastle

Constantine Bay

Crackington Haven

Watergate Bay

Newquay

Fistral Beach

Saint Austell

Par

Crantock

Widemouth Bay

Upton

Holywell

Fowey

Bude

Flexbury

Pentewan

Perranporth

Mevagissey

Polperro

Talland

Looe

Data source and citation