Doubtful Sound Sea Temperature in April

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

Average water temperature in Doubtful Sound for April

The average, high, and low temperatures below should help you if you can swim in the water in Doubtful Sound in April.

15.77° C

(60.38° F)

highest: 18.66° C (65.59° F)
lowest: 13.48° C (56.26° F)

At this temperature, water will feel cold compared to a swimming pool, but with a bit of experience and practice most people will find the water relatively comfortable to swim in.

Water temperature range by day in April in Doubtful Sound

The chart below shows the range of low and high temperatures by day for the month of April in Doubtful Sound.

Water temperatures for April in Doubtful Sound in recent years

Day	2024	2023	2022	2021
1	14.55° C	16.52° C	18.55° C	16.97° C
2	14.51° C	16.37° C	18.58° C	16.83° C
3	14.52° C	16.2° C	18.66° C	16.67° C
4	14.44° C	16.15° C	18.55° C	16.49° C
5	14.41° C	16° C	18.48° C	16.42° C
6	14.31° C	15.94° C	18.41° C	16.39° C
7	14.38° C	15.89° C	18.24° C	16.37° C
8	14.4° C	15.97° C	17.98° C	16.27° C
9	14.35° C	16.01° C	17.79° C	16.25° C
10	14.35° C	16.14° C	17.51° C	16.38° C
11	14.89° C	16.22° C	17.37° C	16.44° C
12	15.01° C	16.38° C	17.46° C	16.05° C
13	15.02° C	16.54° C	17.23° C	15.95° C
14	14.99° C	16.66° C	17.04° C	15.93° C
15	15° C	16.64° C	16.94° C	16.17° C
16	14.79° C	16.73° C	16.8° C	16.22° C
17	14.78° C	16.59° C	16.71° C	16.17° C
18	14.96° C	16.57° C	16.57° C	15.76° C
19	14.74° C	16.56° C	16.05° C	15.59° C
20	14.74° C	16.52° C	16.09° C	15.82° C
21	14.72° C	16.6° C	16.57° C	16.01° C
22	14.69° C	16.62° C	16.67° C	15.55° C
23	14.51° C	16.48° C	16.74° C	15.41° C
24	14.61° C	16.25° C	16.76° C	15.46° C
25	14.82° C	16.06° C	16.42° C	15.47° C
26	14.74° C	15.91° C	16.36° C	15.55° C
27	14.71° C	15.75° C	16.18° C	15.55° C
28	14.47° C	15.84° C	16.13° C	15.54° C
29	14.68° C	15.84° C	16.13° C	15.4° C
30	14.56° C	15.85° C	16.07° C	15.37° C

Data source and citation

Raw data for the calculations made to find the sea surface temperature in Doubtful Sound 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.

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