St Marys Weather Forecast

Today 10 Sep
- 5
- 20
Sunny
Fri 11 Sep
- 5
- 18
Sunny
Sat 12 Sep
- 6
- 17
Mostly sunny
Sun 13 Sep
- 6
- 19
Partly cloudy
Mon 14 Sep
- 10
- 19
Mostly sunny
Tue 15 Sep
- 7
- 14
Shower or two
Wed 16 Sep
- 4
- 16
Partly cloudy

Today 10 Sep
1. 1 am
2. 4 am
3. 7 am
4. 10 am
5. 1 pm
6. 4 pm
7. 7 pm
8. 10 pm
Fri 11 Sep
1. 1 am
2. 4 am
3. 7 am
4. 10 am
5. 1 pm
6. 4 pm
7. 7 pm
8. 10 pm
Sat 12 Sep
1. 1 am
2. 4 am
3. 7 am
4. 10 am
5. 1 pm
6. 4 pm
7. 7 pm
8. 10 pm
Sun 13 Sep
1. 1 am
2. 4 am
3. 7 am
4. 10 am
5. 1 pm
6. 4 pm
7. 7 pm
8. 10 pm
Mon 14 Sep
1. 1 am
2. 4 am
3. 7 am
4. 10 am
5. 1 pm
6. 4 pm
7. 7 pm
8. 10 pm
Tue 15 Sep
1. 1 am
2. 4 am
3. 7 am
4. 10 am
5. 1 pm
6. 4 pm
7. 7 pm
8. 10 pm
Wed 16 Sep
1. 1 am
2. 4 am
3. 7 am
4. 10 am
5. 1 pm
6. 4 pm
7. 7 pm
8. 10 pm

Today 10 Sep East Coast

Sunny. Winds westerly 15 to 25 km/h. Daytime maximum temperatures between 16 and 20.

St Marys Temperature Statistics View More

September Temperature

St Helens Aerodrome (28km)

Lowest 30 July, 2026
0.9 °C
Average 2026
13.7 °C
Highest 7 January, 2026
33.6 °C
Lowest 23 August, 2026
2.5 °C
Average August
11.1 °C
Highest 30 August, 2026
23.1 °C
Lowest 8 September, 2026
3.5 °C
Average September
12 °C
Highest 8 September, 2026
18.1 °C

Climate (2021–2026)

St Helens Aerodrome (28km)

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Average Low 2021–2026
9.4 °C
Average 2021–2026
13.4 °C
Average High 2021–2026
18.3 °C

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