Fairfield
September
Weather in Fairfield for September 2025
Your guide to Fairfield weather in September - trends and predictions
In general, the average temperature in Fairfield at the beginning of September is 23.1 °C. As the month progressed, temperatures tended to slightly increase, reaching an average of 23.6 °C by the end of September.
Fairfield sees moderate rainfall in September, averaging 8 rainy days.
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22
Dry days
8
Rainy days
0
Snow days
24°/10°
Temperatures
18 km/h
Avg max wind
56 %
Avg humidity
Fairfield in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  21° | 2  21° | 3  18° | 4 24° | 5 25° | 6 26° | 7  27° |
| 8 23° | 9 21° | 10 19° | 11 23° | 12 19° | 13 20° | 14 25° |
| 15  23° | 16 27° | 17 27° | 18 30° | 19 30° | 20 29° | 21 24° |
| 22 21° | 23 25° | 24 25° | 25 29° | 26  20° | 27  20° | 28 21° |
| 29 25° | 30 25° |
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Temperatures trend during September in Fairfield
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 | 21° /9° | 0.9 mm | 6 | |
| 2 Sept. | Cloudy | 21° /8° | 0 mm | 6 | |
| 3 Sept. | Sunny | 18° /7° | 0 mm | 6 | |
| 4 Sept. | Sunny | 24° /6° | 0 mm | 7 | |
| 5 Sept. | Patchy rain possible | 25° /9° | 0.9 mm | 7 | |
| 6 Sept. | Sunny | 26° /9° | 0 mm | 8 | |
| 7 Sept. | Partly cloudy | 27° /11° | 0.2 mm | 7 | |
| 8 Sept. | Light rain shower | 23° /10° | 2.2 mm | 6 | |
| 9 Sept. | Sunny | 21° /9° | 0 mm | 6 | |
| 10 Sept. | Sunny | 19° /6° | 0 mm | 6 | |
| 11 Sept. | Sunny | 23° /8° | 0 mm | 6 | |
| 12 Sept. | Partly cloudy | 19° /10° | 1.9 mm | 6 | |
| 13 Sept. | Sunny | 20° /8° | 0.1 mm | 6 | |
| 14 Sept. | Sunny | 25° /7° | 0 mm | 7 | |
| 15 Sept. | Overcast | 23° /8° | 0 mm | 7 | |
| 16 Sept. | Sunny | 27° /8° | 0 mm | 8 | |
| 17 Sept. | Sunny | 27° /9° | 0 mm | 8 | |
| 18 Sept. | Sunny | 30° /9° | 0 mm | 8 | |
| 19 Sept. | Sunny | 30° /13° | 0 mm | 8 | |
| 20 Sept. | Sunny | 29° /13° | 0 mm | 8 | |
| 21 Sept. | Patchy rain possible | 24° /10° | 0.2 mm | 6 | |
| 22 Sept. | Light rain shower | 21° /9° | 0.3 mm | 6 | |
| 23 Sept. | Patchy rain possible | 25° /8° | 0 mm | 7 | |
| 24 Sept. | Sunny | 25° /9° | 0 mm | 7 | |
| 25 Sept. | Sunny | 29° /10° | 0 mm | 8 | |
| 26 Sept. | Patchy light drizzle | 20° /11° | 11 mm | 5 | |
| 27 Sept. | Patchy light rain with thunder | 20° /12° | 1.8 mm | 5 | |
| 28 Sept. | Patchy rain possible | 21° /13° | 1.1 mm | 5 | |
| 29 Sept. | Sunny | 25° /12° | 0.3 mm | 7 | |
| 30 Sept. | Sunny | 25° /11° | 1.8 mm | 7 | |
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Important Notice
Our weather forecast for Fairfield 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 Fairfield forecast closer to your planned date for the most up-to-date weather information.
Fairfield in September - FAQ
What are the expected maximum and minimum temperatures in Fairfield during September?
Enjoy moderate daytime temperatures of up to 24° and cooler nights around 10°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Fairfield during September?
Expect minimal rainfall in Fairfield during September, with a total of 13.1 mm over approximately 8 days. This minimal precipitation is unlikely to significantly impact plans.
What are the typical wind conditions in Fairfield during September?
The average wind speed in Fairfield during September is 18 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Fairfield
Explore the daily rainfall trends and prepare for Fairfields September weather 💧
UV exposure in Fairfield during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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