Carmel-by-the-Sea Weather in September

The climate in Carmel-by-the-Sea during September can be summarized as mild and dry.

September is in the fall / autumn in Carmel-by-the-Sea and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around 24°C (76°F), whilst at night 10°C (51°F) is normal.

On average September is the 5th driest month of the year in Carmel-by-the-Sea with around 11mm 0.4 inches of rain making it a dry time to visit. This rainfall is typically spread over 2 days, although this may vary considerably.

On the flip side this corresponds to an average of 10.2 hours of sunshine per day.

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Carmel-by-the-Sea in September 2025.