Caloundra Sea Temperature in September

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

Average water temperature in Caloundra for September

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

21.24° C

(70.24° F)

highest: 23.24° C (73.83° F)
lowest: 19.48° C (67.06° 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 Caloundra

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

Water temperatures for September in Caloundra in recent years

Day	2024	2023	2022	2021
1	0° C	21.32° C	20.07° C	20.67° C
2	0° C	21.38° C	20.32° C	20.76° C
3	0° C	21.16° C	20.14° C	20.65° C
4	0° C	21.29° C	20.05° C	20.71° C
5	0° C	21.29° C	20.03° C	20.89° C
6	0° C	21.48° C	19.96° C	21.02° C
7	0° C	21.7° C	19.84° C	21.15° C
8	0° C	21.87° C	19.71° C	21.21° C
9	0° C	21.93° C	19.92° C	21.25° C
10	0° C	21.95° C	20.1° C	21.24° C
11	0° C	21.95° C	20.21° C	21.35° C
12	0° C	21.91° C	20.11° C	21.78° C
13	0° C	21.86° C	19.95° C	21.95° C
14	0° C	21.79° C	19.95° C	21.97° C
15	0° C	21.77° C	19.99° C	21.69° C
16	0° C	21.85° C	20.18° C	21.75° C
17	0° C	22.03° C	20.35° C	21.97° C
18	0° C	22.12° C	20.52° C	21.9° C
19	0° C	22.18° C	20.73° C	21.7° C
20	0° C	22.22° C	20.8° C	21.58° C
21	0° C	22.25° C	20.76° C	21.36° C
22	0° C	22.18° C	20.74° C	21.25° C
23	0° C	22° C	21.01° C	21.31° C
24	0° C	21.78° C	21.13° C	21.3° C
25	0° C	21.68° C	21.16° C	21.35° C
26	0° C	21.67° C	21.24° C	21.46° C
27	0° C	21.75° C	21.22° C	20.99° C
28	0° C	21.77° C	21.13° C	20.63° C
29	0° C	21.9° C	21.17° C	20.62° C
30	0° C	22.02° C	21.23° C	20.86° C