Weather in Monterey County, United States in September

So you're interested in going to Monterey County, United States in September

September is a warm and very dry time for sunbathing in Monterey County. September is a little too cold to enjoy swimming in Monterey County for any length of time. Consider visiting Monterey County in the months of June, July, August, September, for the best beach weather. Also consider one of our other suggestions for September.

Temperature in Monterey County in September

The average maximum temperature in Monterey County in September is 22°. The average maximum temperature is 22° in the previous month and 21° in the next month.

The average temperature in Monterey County in September is 17°. The average temperature ranges is 18° in the previous month and 16° in the next month.

The average minimum temperature in Monterey County in September is 13°. The minimum temperature is 14° in the previous month and 11° in the next month.

Sunshine in Monterey County in September

The average day light hours per day in Monterey County in September are 12.4 and there are 9.5 hours of sunshine per day on average during September making it a sunny month with few clouds.

The ultraviolet index in Monterey County in September is typically 8 during September. An ultraviolet index reading of 8 to 10 indicates a very high risk of harm from unprotected sun exposure. Unprotected skin risks burning in less than 15 minutes. Take extra precautions because unprotected skin and eyes will be damaged and can burn quickly. Tanning will be safest before 10am and after 4pm but only with a good application of sun screen. For those with sensitive skin stay in the shade and wear protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 30+ sunscreen every 2 hours, even on cloudy days. Watch out for relections from water that may increase ultraviolet exposure.

Sea Temperature in Monterey County in September

The average sea water temperature in Monterey County in September is 18.8° which is cool for swimming, shorty wetsuit may help you extend your time in the water.

Rainfall in Monterey County in September

The average total rainfall in Monterey County in September is 2cm and on average there are 2.2 rainy days in September making it a very dry time to visit the beach.

Humidity in Monterey County in September

The maximum dew point (an indicator of humidity) in Monterey County in September is 14° which is comfortable for everyone. The dew point is 14° in the previous month and 12° in the next month.

The average maximum relative humidity in Monterey County in September is typically 90.6%. The maximum relative humidity is 92.3% in the previous month and 87.4% in the next month.

The average relative humidity in Monterey County in September is typically 74.5%. The average relative humidity is 77.5% in the previous month and 70.9% in the next month.

Wind Speed in Monterey County in September

The average maximum wind speed in Monterey County in September is typically 22kmh. The average maximum wind speed is 23kmh in the previous month and 20kmh in the next month.

The average wind speed in Monterey County in September is typically 8kmh. The average wind speed is 9kmh in the previous month and 7kmh in the next month.

The average wind direction in Monterey County in September is from the West.

Monthly Averages

Suggested Beaches in September

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