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Australia weather

Weather in Mount Barker for September 2026

Your guide to Mount Barker weather in September - trends and predictions

    Temperatures

  • Until now, September 2026 in Mount Barker is slightly cooler than the historical average by 1.1 °C.

  • The forecast for the upcoming days in Mount Barker predicts a temperature of 17.1 °C, which is slightly above the historical average.

  • In general, the average temperature in Mount Barker at the beginning of September is 16.3 °C. As the month progressed, temperatures tended to slightly decrease, reaching an average of 15.9 °C by the end of September.

    • Rain 🌧️

  • The climate of Mount Barker in September is notably wet, with an average of 12 rainy days, and a total of 49.8 mm of precipitation.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
18
Dry days
Average rainy days
12
Rainy days
Average snowy days
0
Snow days
Average temperatures
16°/9°
Temperatures
Average wind speed
20 km/h
Avg max wind
Average humidity
68 %
Avg humidity

Mount Barker Weather September

Move between months or click on a day
August
October
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Patchy rain possible
15°
2
Partly cloudy
15°
3
Sunny
16°
4
Patchy rain possible
17°
5
Patchy rain possible
16°
6
Patchy rain possible
19°
7
Light rain shower
16°
8
Light rain shower
14°
9
Cloudy
13°
10
Sunny
15°
11
Light rain shower
15°
12
Overcast
20°
13
Sunny
19°
14
Sunny
15°
15
Sunny
16°
16
Sunny
14°
17
Sunny
17°
18
Sunny
22°
19
Sunny
24°
20
Sunny
19°
21
Overcast
17°
22
Overcast
20°
23
Light rain shower
15°
24
Patchy rain possible
10°
25
Patchy rain possible
11°
26
Sunny
17°
27
Cloudy
16°
28
Sunny
20°
29
Patchy rain possible
19°
30
Sunny
18°

Temperatures trend during September in Mount Barker

See the weather trend as well as the moving average line

September weather in Mount Barker day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Patchy rain possible
Patchy rain possible
 15° /9° 0.5 mm 4
2 Sept. Partly cloudy
Partly cloudy
 15° /8° 0.2 mm 4
3 Sept. Sunny
Sunny
 16° /9° 0.4 mm 5
4 Sept. Patchy rain possible
Patchy rain possible
 17° /9° 2.1 mm 4
5 Sept. Patchy rain possible
Patchy rain possible
 16° /10° 1.5 mm 4
6 Sept. Patchy rain possible
Patchy rain possible
 19° /10° 2.7 mm 5
7 Sept. Light rain shower
Light rain shower
 16° /9° 10.2 mm 5
8 Sept. Light rain shower
Light rain shower
 14° /8° 4.7 mm 4
9 Sept. Cloudy
Cloudy
 13° /7° 5 mm 4
10 Sept. Sunny
Sunny
 15° /7° 1.2 mm 5
11 Sept. Light rain shower
Light rain shower
 15° /7° 0.6 mm 5
12 Sept. Overcast
Overcast
 20° /14° 0 mm 6.9
13 Sept. Sunny
Sunny
 19° /12° 0 mm 5.8
14 Sept. Sunny
Sunny
 15° /11° 0.1 mm 6.6
15 Sept. Sunny
Sunny
 16° /9° 0 mm 5
16 Sept. Sunny
Sunny
 14° /7° 0 mm 5
17 Sept. Sunny
Sunny
 17° /11° 0 mm 6
18 Sept. Sunny
Sunny
 22° /15° 0 mm 7
19 Sept. Sunny
Sunny
 24° /18° 0 mm 7
20 Sept. Sunny
Sunny
 19° /14° 0 mm 6
21 Sept. Overcast
Overcast
 17° /13° 1.8 mm 5
22 Sept. Overcast
Overcast
 20° /15° 2.6 mm 6
23 Sept. Light rain shower
Light rain shower
 15° /9° 7.6 mm 4
24 Sept. Patchy rain possible
Patchy rain possible
 10° /8° 7.5 mm 4
25 Sept. Patchy rain possible
Patchy rain possible
 11° /9° 2 mm 4
26 Sept. Sunny
Sunny
 17° /7° 0.4 mm 6
27 Sept. Cloudy
Cloudy
 16° /7° 0 mm 5
28 Sept. Sunny
Sunny
 20° /9° 0.3 mm 6
29 Sept. Patchy rain possible
Patchy rain possible
 19° /11° 1.9 mm 6
30 Sept. Sunny
Sunny
 18° /11° 2.2 mm 6
Next
Important Notice
Our weather forecast for Mount Barker in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Mount Barker forecast closer to your planned date for the most up-to-date weather information.
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Mount Barker in September - FAQ

What are the expected maximum and minimum temperatures in Mount Barker during September?
Enjoy moderate daytime temperatures of up to 16° and cooler nights around 9°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in Mount Barker during September?
In September, Mount Barker can expect light to moderate rainfall, totaling 49.8 mm across approximately 12 days. Occasional showers are possible, and planning ahead for them could be helpful.

What are the typical wind conditions in Mount Barker during September?
The average wind speed in Mount Barker during September is 20 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Mount Barker

Explore the daily rainfall trends and prepare for Mount Barkers September weather 💧
Typically, Mount Barker has 12 rainy days in September with a total of 49.8 mm of rainfall.

UV exposure in Mount Barker during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️

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Location coordinates Where is Mount Barker?

Get accurate weather forecasts for Mount Barker, located at latitude -35.067 and longitude 138.867. Stay updated with localized weather information tailored for Mount Barker.

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