Big Bear Lake (CA)
September
Weather in Big Bear Lake, California for September 2027
Your guide to Big Bear Lake weather in September - trends and predictions
In general, the average temperature in Big Bear Lake at the beginning of September is 24.4 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 22.8 °C by the end of September.
With an average of 4 rainy days, Big Bear Lake experiences minimal rainfall in September.
Is September a good time to visit Big Bear Lake? check out the best time to travel to Big Bear Lake page.
✨ Is September a good time to visit Big Bear Lake? – Ask the AI Weatherman
Temperatures
Rain 🌧️
More
26
Dry days
4
Rainy days
0
Snow days
23°/14°
Temperatures
13 km/h
Avg max wind
40 %
Avg humidity
Big Bear Lake Weather September
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Temperatures trend during September in Big Bear Lake
See the weather trend as well as the moving average line
September weather in Big Bear Lake day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Sunny | 26° /17° | 0 mm | 8 | |
| Sept. 2 |  Moderate rain | 24° /16° | 10.7 mm | 8 | |
| Sept. 3 |  Light rain | 24° /14° | 3.6 mm | 8 | |
| Sept. 4 | Light rain | 24° /15° | 5.9 mm | 8 | |
| Sept. 5 | Light rain | 25° /16° | 6.8 mm | 8 | |
| Sept. 6 | Light rain | 24° /17° | 9.4 mm | 5 | |
| Sept. 7 |  Patchy rain possible | 25° /17° | 0.7 mm | 5 | |
| Sept. 8 | Patchy light drizzle | 25° /17° | 1.1 mm | 6 | |
| Sept. 9 | Light rain | 24° /16° | 3 mm | 7 | |
| Sept. 10 | Patchy rain possible | 24° /14° | 1.6 mm | 8 | |
| Sept. 11 | Sunny | 23° /13° | 0.1 mm | 8 | |
| Sept. 12 |  Partly cloudy | 23° /13° | 0 mm | 8 | |
| Sept. 13 | Sunny | 23° /13° | 0 mm | 7 | |
| Sept. 14 | Sunny | 25° /14° | 0 mm | 8 | |
| Sept. 15 | Sunny | 23° /14° | 0 mm | 8 | |
| Sept. 16 | Sunny | 19° /11° | 0 mm | 6 | |
| Sept. 17 |  Cloudy | 20° /10° | 0 mm | 6 | |
| Sept. 18 | Sunny | 21° /11° | 0 mm | 7 | |
| Sept. 19 | Sunny | 21° /10° | 0 mm | 7 | |
| Sept. 20 |  Thundery outbreaks possible | 20° /11° | 0 mm | 4 | |
| Sept. 21 |  Overcast | 20° /11° | 0 mm | 7 | |
| Sept. 22 | Sunny | 21° /14° | 0 mm | 7 | |
| Sept. 23 | Patchy rain possible | 24° /16° | 1.6 mm | 7 | |
| Sept. 24 | Partly cloudy | 24° /17° | 0 mm | 7 | |
| Sept. 25 | Sunny | 24° /14° | 0 mm | 7 | |
| Sept. 26 | Sunny | 23° /13° | 0 mm | 6 | |
| Sept. 27 | Light rain | 22° /15° | 9.6 mm | 4 | |
| Sept. 28 | Sunny | 21° /13° | 0 mm | 7 | |
| Sept. 29 | Partly cloudy | 22° /13° | 0 mm | 7 | |
| Sept. 30 | Sunny | 24° /14° | 0 mm | 7 | |
| Next | |||||
Important Notice
Our weather forecast for Big Bear Lake 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 Big Bear Lake forecast closer to your planned date for the most up-to-date weather information.
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Big Bear Lake in September - FAQ
What are the expected maximum and minimum temperatures in Big Bear Lake during September?
Enjoy moderate daytime temperatures of up to 23° and cooler nights around 14°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Big Bear Lake during September?
Moderate rainfall is anticipated in Big Bear Lake during September, with a total of 54.1 mm spread over approximately 4 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Big Bear Lake during September?
The average wind speed in Big Bear Lake during September is 13 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Big Bear Lake
Explore the daily rainfall trends and prepare for Big Bear Lakes September weather 💧
Typically, Big Bear Lake has 4 rainy days in September with a total of 54.1 mm of rainfall.
UV exposure in Big Bear Lake during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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