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Weather in Newcastle for September 2026

Your guide to Newcastle weather in September - trends and predictions

    Temperatures

  • Until now, September 2026 in Newcastle has been nearly identical to the historical average, with a temperature of 19.8 °C (showing only a slight deviation of 0.1 °C).

  • The forecast for the next days in Newcastle predicts temperatures to be around 20 °C, close to the historical average.

  • In general, the average temperature in Newcastle at the beginning of September is 20.3 °C. As the month progressed, temperatures tended to slightly decrease, reaching an average of 20 °C by the end of September.

    • Rain 🌧️

  • The climate of Newcastle in September is notably wet, with an average of 13 rainy days, and a total of 42.5 mm of precipitation.

    • More

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

Average dry days
17
Dry days
Average rainy days
13
Rainy days
Average snowy days
0
Snow days
Average temperatures
20°/12°
Temperatures
Average wind speed
23 km/h
Avg max wind
Average humidity
63 %
Avg humidity

Newcastle Weather September

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

Temperatures trend during September in Newcastle

See the weather trend as well as the moving average line

September weather in Newcastle day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Light rain shower
Light rain shower
 20° /11° 1.2 mm 5
2 Sept. Sunny
Sunny
 20° /11° 0.2 mm 5
3 Sept. Sunny
Sunny
 19° /12° 0 mm 5
4 Sept. Sunny
Sunny
 19° /10° 0 mm 5
5 Sept. Sunny
Sunny
 23° /12° 0 mm 6
6 Sept. Sunny
Sunny
 20° /13° 0 mm 6
7 Sept. Patchy light drizzle
Patchy light drizzle
 21° /12° 2.6 mm 5
8 Sept. Patchy rain possible
Patchy rain possible
 21° /13° 1 mm 5
9 Sept. Sunny
Sunny
 19° /11° 2.8 mm 5
10 Sept. Sunny
Sunny
 17° /11° 6.6 mm 4
11 Sept. Cloudy
Cloudy
 18° /11° 2.7 mm 4
12 Sept. Partly cloudy
Partly cloudy
 17° /11° 2.4 mm 5
13 Sept. Sunny
Sunny
 18° /11° 0 mm 7
14 Sept. Sunny
Sunny
 22° /13° 0 mm 6.9
15 Sept. Sunny
Sunny
 19° /14° 1.6 mm 6.9
16 Sept. Light rain shower
Light rain shower
 15° /12° 4.3 mm 4
17 Sept. Sunny
Sunny
 15° /11° 0.4 mm 5
18 Sept. Sunny
Sunny
 22° /10° 0 mm 7
19 Sept. Sunny
Sunny
 26° /14° 0 mm 8
20 Sept. Sunny
Sunny
 26° /16° 0 mm 8
21 Sept. Sunny
Sunny
 29° /17° 0 mm 8
22 Sept. Sunny
Sunny
 19° /17° 0.2 mm 6
23 Sept. Patchy rain possible
Patchy rain possible
 18° /15° 18.8 mm 5
24 Sept. Light rain shower
Light rain shower
 17° /12° 10.4 mm 5
25 Sept. Patchy rain possible
Patchy rain possible
 17° /14° 0.1 mm 6
26 Sept. Thundery outbreaks possible
Thundery outbreaks possible
 21° /13° 5.9 mm 6
27 Sept. Thundery outbreaks possible
Thundery outbreaks possible
 20° /15° 1.5 mm 6
28 Sept. Light rain shower
Light rain shower
 21° /14° 1.5 mm 5
29 Sept. Sunny
Sunny
 22° /14° 3.6 mm 6
30 Sept. Mist
Mist
 22° /14° 0.7 mm 6
Next
Important Notice
Our weather forecast for Newcastle 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 Newcastle forecast closer to your planned date for the most up-to-date weather information.
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Newcastle in September - FAQ

What are the expected maximum and minimum temperatures in Newcastle during September?
Enjoy moderate daytime temperatures of up to 20° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in Newcastle during September?
In September, Newcastle can expect light to moderate rainfall, totaling 42.5 mm across approximately 13 days. Occasional showers are possible, and planning ahead for them could be helpful.

What are the typical wind conditions in Newcastle during September?
The average wind speed in Newcastle during September is 23 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Newcastle

Explore the daily rainfall trends and prepare for Newcastles September weather 💧
Typically, Newcastle has 13 rainy days in September with a total of 42.5 mm of rainfall.

UV exposure in Newcastle during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Location coordinates Where is Newcastle?

Get accurate weather forecasts for Newcastle, located at latitude -32.93 and longitude 151.78. Stay updated with localized weather information tailored for Newcastle.

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