Sea TemperaturesMariehamn Sea Temperature in December
Looking to find out what the average sea water temperature in Mariehamn is for December? Find out what the lowest, highest, and average water temperatures are for Mariehamn over the past 10 years.
Average water temperature in Mariehamn for December
The average, high, and low temperatures below should help you if you can swim in the water in Mariehamn in December.
Average
4.55° C
40.19° F
High
7.72° C
45.9° F
Low
1.63° C
34.93° F
Water temperature range by day in December in Mariehamn
The chart below shows the range of low and high temperatures by day for the month of December in Mariehamn.
Average daily water temperatures in Mariehamn for December
| Day | Average | Low | High |
|---|---|---|---|
| 1 | 5.61° C | 4.38° C | 7.72° C |
| 2 | 5.46° C | 4.19° C | 7.22° C |
| 3 | 5.44° C | 4.27° C | 7.1° C |
| 4 | 5.38° C | 3.95° C | 6.82° C |
| 5 | 5.2° C | 3.84° C | 6.64° C |
| 6 | 5.13° C | 3.61° C | 7.07° C |
| 7 | 4.99° C | 3.41° C | 6.67° C |
| 8 | 4.85° C | 3.23° C | 6.7° C |
| 9 | 4.78° C | 3.26° C | 6.68° C |
| 10 | 4.75° C | 3.22° C | 6.82° C |
| 11 | 4.75° C | 3.18° C | 6.85° C |
| 12 | 4.71° C | 3.15° C | 6.81° C |
| 13 | 4.58° C | 3.12° C | 6.44° C |
| 14 | 4.53° C | 2.89° C | 6.16° C |
| 15 | 4.34° C | 2.84° C | 5.91° C |
| 16 | 4.45° C | 2.93° C | 6.08° C |
| 17 | 4.38° C | 2.97° C | 6.14° C |
| 18 | 4.41° C | 3.13° C | 6.17° C |
| 19 | 4.45° C | 3.13° C | 6.17° C |
| 20 | 4.45° C | 2.85° C | 6.25° C |
| 21 | 4.41° C | 2.89° C | 6.23° C |
| 22 | 4.25° C | 2.75° C | 6° C |
| 23 | 4.11° C | 2.34° C | 5.87° C |
| 24 | 4.08° C | 2.19° C | 5.8° C |
| 25 | 4.11° C | 2.1° C | 5.76° C |
| 26 | 4.06° C | 2.45° C | 5.39° C |
| 27 | 4.02° C | 2.42° C | 5.33° C |
| 28 | 3.87° C | 1.82° C | 5.34° C |
| 29 | 3.82° C | 1.67° C | 5.19° C |
| 30 | 3.88° C | 1.63° C | 5.31° C |
| 31 | 3.8° C | 1.63° C | 5.27° C |
Water temperature in December for locations near Mariehamn
Data source and citation
Raw data for the calculations made to find the sea surface temperature in Mariehamn 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.