Townsville Sea Temperature in September

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

Average water temperature in Townsville for September

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

23.98° C

(75.16° F)

highest: 26.69° C (80.04° F)
lowest: 21.45° C (70.61° F)

Water at this temperature is very pleasant to swim in and if you tend to wear a wetsuit when swimming, you might consider removing it now to avoid the body overheating.

Water temperature range by day in September in Townsville

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

Water temperatures for September in Townsville in recent years

Day	2024	2023	2022	2021
1	0° C	23.91° C	21.98° C	23.67° C
2	0° C	24.17° C	22.11° C	23.44° C
3	0° C	23.99° C	22.32° C	23.33° C
4	0° C	24.16° C	22.26° C	23.49° C
5	0° C	24.14° C	22.15° C	23.66° C
6	0° C	24.18° C	22.2° C	23.71° C
7	0° C	24.28° C	22.33° C	23.62° C
8	0° C	24.47° C	22.6° C	23.62° C
9	0° C	24.44° C	23.13° C	23.29° C
10	0° C	24.46° C	23.6° C	23.35° C
11	0° C	24.27° C	23.99° C	23.51° C
12	0° C	24.06° C	24.05° C	23.55° C
13	0° C	23.71° C	23.96° C	23.75° C
14	0° C	23.49° C	23.92° C	23.81° C
15	0° C	23.38° C	24.01° C	23.8° C
16	0° C	23.27° C	24.38° C	23.65° C
17	0° C	23.24° C	24.72° C	23.65° C
18	0° C	23.24° C	25.16° C	23.6° C
19	0° C	23.5° C	25.68° C	23.61° C
20	0° C	23.99° C	25.91° C	23.76° C
21	0° C	24.42° C	26.12° C	23.55° C
22	0° C	24.42° C	26.33° C	23.41° C
23	0° C	24.11° C	26.56° C	23.32° C
24	0° C	23.97° C	26.61° C	23.33° C
25	0° C	23.92° C	26.49° C	23.62° C
26	0° C	23.86° C	26.45° C	23.78° C
27	0° C	23.89° C	26.52° C	23.79° C
28	0° C	23.94° C	26.69° C	23.78° C
29	0° C	24.03° C	26.69° C	23.69° C
30	0° C	24.18° C	26.61° C	24.79° C

Water temperature in September for locations near Townsville

Magnetic Island

Australia, Australia and Oceania

8.39 miles away

Data source and citation

Raw data for the calculations made to find the sea surface temperature in Townsville 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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