Weather in Orange County, United States in September

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

September is a hot and extremely dry time for sunbathing in Orange County. September is an excellent month for swimming in Orange County with very warm sea temperatures. Consider visiting Orange 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 Orange County in September

The average maximum temperature in Orange County in September is 26°. The average maximum temperature is 27° in the previous month and 24° in the next month.

The average temperature in Orange County in September is 22°. The average temperature ranges is 23° in the previous month and 20° in the next month.

The average minimum temperature in Orange County in September is 18°. The minimum temperature is 19° in the previous month and 15° in the next month.

Sunshine in Orange County in September

The average day light hours per day in Orange County in September are 12.4 and there are 8.8 hours of sunshine per day on average during September making it a sunny month with few clouds.

The ultraviolet index in Orange County in September is typically 9 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 Orange County in September

The average sea water temperature in Orange County in September is 27.3° which is very warm and ideal for relaxing and swimming for the whole day.

Rainfall in Orange County in September

The average total rainfall in Orange County in September is 1.8cm and on average there are 1.2 rainy days in September making it an extremely dry time to visit the beach.

Humidity in Orange County in September

The maximum dew point (an indicator of humidity) in Orange County in September is 16° which is OK for most but slightly uncomfortable for some. The dew point is 17° in the previous month and 14° in the next month.

The average maximum relative humidity in Orange County in September is typically 82.5%. The maximum relative humidity is 82.9% in the previous month and 81.3% in the next month.

The average relative humidity in Orange County in September is typically 66.2%. The average relative humidity is 68% in the previous month and 64.4% in the next month.

Wind Speed in Orange County in September

The average maximum wind speed in Orange County in September is typically 20kmh. The average maximum wind speed is 21kmh in the previous month and 20kmh in the next month.

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

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

Monthly Averages

Suggested Beaches in September

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