Newcastle
September
Weather in Newcastle for September 2025
Your guide to Newcastle weather in September - trends and predictions
In general, the average temperature in Newcastle at the beginning of September is 20.6 °C. As the month progressed, temperatures tended to remain steady, reaching an average of 20.6 °C by the end of September.
Newcastle sees moderate rainfall in September, averaging 7 rainy days.
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23
Dry days
7
Rainy days
0
Snow days
20°/12°
Temperatures
22 km/h
Avg max wind
65 %
Avg humidity
Newcastle in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  20° | 2 20° | 3 15° | 4  20° | 5 23° | 6 22° | 7  24° |
| 8 22° | 9 19° | 10 17° | 11  19° | 12  18° | 13 18° | 14 20° |
| 15  18° | 16 22° | 17 22° | 18 25° | 19 26° | 20 25° | 21 21° |
| 22 20° | 23 21° | 24 20° | 25 24° | 26  20° | 27 18° | 28 18° |
| 29 23° | 30  21° |
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Temperatures trend during September in Newcastle
See the weather trend as well as the moving average line
September weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. | Light rain shower | 20° /12° | 2.3 mm | 6 | |
| 2 Sept. | Light rain shower | 20° /11° | 0.2 mm | 6 | |
| 3 Sept. | Patchy rain possible | 15° /10° | 0.1 mm | 5 | |
| 4 Sept. | Sunny | 20° /9° | 0 mm | 6 | |
| 5 Sept. | Sunny | 23° /12° | 0 mm | 7 | |
| 6 Sept. | Sunny | 22° /12° | 0 mm | 7 | |
| 7 Sept. | Patchy light drizzle | 24° /13° | 4.6 mm | 6 | |
| 8 Sept. | Light rain shower | 22° /13° | 1.4 mm | 6 | |
| 9 Sept. | Sunny | 19° /9° | 0 mm | 6 | |
| 10 Sept. | Sunny | 17° /9° | 0 mm | 6 | |
| 11 Sept. | Cloudy | 19° /10° | 0 mm | 6 | |
| 12 Sept. | Partly cloudy | 18° /12° | 3.7 mm | 5 | |
| 13 Sept. | Partly cloudy | 18° /12° | 1 mm | 6 | |
| 14 Sept. | Sunny | 20° /10° | 0.1 mm | 6 | |
| 15 Sept. | Overcast | 18° /10° | 2.4 mm | 5 | |
| 16 Sept. | Sunny | 22° /11° | 0.4 mm | 7 | |
| 17 Sept. | Sunny | 22° /13° | 0.3 mm | 6 | |
| 18 Sept. | Sunny | 25° /13° | 0 mm | 7 | |
| 19 Sept. | Sunny | 26° /14° | 0 mm | 7 | |
| 20 Sept. | Sunny | 25° /14° | 0 mm | 7 | |
| 21 Sept. | Patchy rain possible | 21° /12° | 0.1 mm | 6 | |
| 22 Sept. | Patchy rain possible | 20° /12° | 0.2 mm | 6 | |
| 23 Sept. | Overcast | 21° /12° | 0 mm | 6 | |
| 24 Sept. | Partly cloudy | 20° /12° | 0 mm | 6 | |
| 25 Sept. | Sunny | 24° /13° | 0 mm | 7 | |
| 26 Sept. | Thundery outbreaks possible | 20° /13° | 8.9 mm | 5 | |
| 27 Sept. | Thundery outbreaks possible | 18° /15° | 2.3 mm | 5 | |
| 28 Sept. | Light rain shower | 18° /14° | 2.2 mm | 5 | |
| 29 Sept. | Sunny | 23° /14° | 5.3 mm | 6 | |
| 30 Sept. | Mist | 21° /15° | 1.1 mm | 5 | |
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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.
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 20.2 mm across approximately 7 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 22 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 💧
UV exposure in Newcastle during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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