Monterey (CA)
September
Weather in Monterey, California for September 2027
Your guide to Monterey weather in September - trends and predictions
In general, the average temperature in Monterey at the beginning of September is 19.9 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 19.2 °C by the end of September.
With an average of 2 rainy days, Monterey experiences minimal rainfall in September.
Is September a good time to visit Monterey? check out the best time to travel to Monterey page.
✨ Is September a good time to visit Monterey? – Ask the AI Weatherman
Temperatures
Rain 🌧️
More
28
Dry days
2
Rainy days
0
Snow days
19°/13°
Temperatures
14 km/h
Avg max wind
80 %
Avg humidity
Monterey Weather September
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Temperatures trend during September in Monterey
See the weather trend as well as the moving average line
September weather in Monterey day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Sunny | 19° /11° | 0.8 mm | 4 | |
| Sept. 2 | Sunny | 20° /11° | 0 mm | 6 | |
| Sept. 3 | Sunny | 20° /12° | 0 mm | 6 | |
| Sept. 4 | Sunny | 20° /13° | 0 mm | 6 | |
| Sept. 5 | Sunny | 20° /13° | 0 mm | 6 | |
| Sept. 6 |  Overcast | 19° /13° | 0 mm | 6 | |
| Sept. 7 | Sunny | 21° /13° | 0 mm | 6 | |
| Sept. 8 | Sunny | 21° /13° | 0 mm | 5 | |
| Sept. 9 | Sunny | 24° /14° | 0 mm | 4 | |
| Sept. 10 | Sunny | 21° /15° | 0 mm | 6 | |
| Sept. 11 | Sunny | 18° /13° | 0 mm | 4 | |
| Sept. 12 |  Patchy rain possible | 18° /13° | 0 mm | 5 | |
| Sept. 13 | Sunny | 18° /12° | 0 mm | 6 | |
| Sept. 14 |  Cloudy | 19° /12° | 0 mm | 5 | |
| Sept. 15 | Patchy rain possible | 19° /12° | 0.5 mm | 5 | |
| Sept. 16 | Patchy rain possible | 18° /13° | 1.1 mm | 6 | |
| Sept. 17 | Overcast | 18° /12° | 0 mm | 5 | |
| Sept. 18 |  Moderate rain | 19° /13° | 16 mm | 5 | |
| Sept. 19 | Overcast | 18° /13° | 0 mm | 5 | |
| Sept. 20 | Overcast | 17° /13° | 0 mm | 3 | |
| Sept. 21 | Cloudy | 18° /12° | 0 mm | 5 | |
| Sept. 22 | Cloudy | 19° /12° | 0 mm | 5 | |
| Sept. 23 |  Partly cloudy | 22° /14° | 0 mm | 6 | |
| Sept. 24 | Patchy rain possible | 21° /14° | 1.3 mm | 4 | |
| Sept. 25 | Patchy rain possible | 18° /13° | 0 mm | 5 | |
| Sept. 26 | Cloudy | 18° /11° | 0 mm | 4 | |
| Sept. 27 | Partly cloudy | 19° /12° | 0 mm | 5 | |
| Sept. 28 | Cloudy | 18° /13° | 0 mm | 5 | |
| Sept. 29 | Cloudy | 19° /12° | 0 mm | 5 | |
| Sept. 30 | Partly cloudy | 21° /14° | 0 mm | 5 | |
| Next | |||||
Important Notice
Our weather forecast for Monterey 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 Monterey forecast closer to your planned date for the most up-to-date weather information.
Change Month
Monterey in September - FAQ
What are the expected maximum and minimum temperatures in Monterey during September?
Enjoy moderate daytime temperatures of up to 19° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Monterey during September?
Expect minimal rainfall in Monterey during September, with a total of 19.8 mm over approximately 2 days. This minimal precipitation is unlikely to significantly impact plans.
What are the typical wind conditions in Monterey during September?
The average wind speed in Monterey during September is 14 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Monterey
Explore the daily rainfall trends and prepare for Montereys September weather 💧
Typically, Monterey has 2 rainy days in September with a total of 19.8 mm of rainfall.
UV exposure in Monterey during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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