Port Stephens Sea Temperature in September

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

Average water temperature in Port Stephens for September

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

Average

18.8° C

65.84° F

High

20.59° C

69.06° F

Low

16.97° C

62.55° F

Water temperature range by day in September in Port Stephens

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

Average daily water temperatures in Port Stephens for September

Day	Average	Low	High
1	18.77° C	16.97° C	19.65° C
2	18.71° C	17.07° C	19.91° C
3	18.63° C	17.35° C	20.01° C
4	18.65° C	17.72° C	19.85° C
5	18.66° C	17.75° C	19.53° C
6	18.64° C	17.46° C	19.6° C
7	18.62° C	17.39° C	19.67° C
8	18.63° C	17.46° C	19.45° C
9	18.5° C	17.62° C	19.35° C
10	18.53° C	17.37° C	19.97° C
11	18.53° C	17.43° C	19.77° C
12	18.64° C	17.73° C	19.79° C
13	18.64° C	17.79° C	19.64° C
14	18.63° C	17.79° C	19.53° C
15	18.73° C	17.55° C	19.83° C
16	18.73° C	17.48° C	19.96° C
17	18.73° C	17.7° C	20.44° C
18	18.75° C	17.72° C	20.22° C
19	18.82° C	17.79° C	20.55° C
20	18.94° C	17.7° C	20.59° C
21	19° C	17.95° C	20.42° C
22	19.07° C	18.07° C	20.21° C
23	19.07° C	17.55° C	20.28° C
24	19.02° C	17.2° C	20.19° C
25	19.01° C	18.05° C	19.91° C
26	18.85° C	17.92° C	19.99° C
27	19.1° C	18.25° C	20.46° C
28	19.21° C	18.14° C	20.58° C
29	19.14° C	18.12° C	20.08° C
30	19.23° C	18.26° C	20.16° C