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Best
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Best
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Best
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Best
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Tan
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Tan
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Tan
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Tan
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Sea
14°
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Sea
14°
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Sea
14°
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Sea
15°
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Sea
16°
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Sea
17°
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Sea
18°
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Sea
19°
Swim
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Sea
19°
Swim
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Sea
17°
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Sea
16°
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Sea
15°
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September is one of the best months to visit California for the best beach weather. It has the most sunshine and best sunbathing and swimming conditions of the year.
Also consider one of our other suggestions for September.
Yes, September is a great time for sunbathing in California. September is warm with lots of sunshine but some overcast and cloudy skies, still great for sunbathing, and there is a small chance of rain showers.
The average maximum temperature in California in September is 24°C (76°F).
More about September temperature and sunshine.
Probably not, September is a little too cold to enjoy swimming in California for any length of time with the sea water at 19°C (66°F).
More about September sea temperatures.
Yes, September is a good time for a holiday in California.
September is warm and generally sunny and pleasant with long bright days. It is extremely dry with only very rare light showers and very few days with any rain at all.
It's great for enjoying the beach and exploring the area.
The average maximum temperature in California in September is 24°C (76°F).
More about the September temperatures and sunshine.
The average minimum temperature in California in September is 14°C (58°F). The minimum temperature is 15°C (59°F) in the previous month and 12°C (54°F) in the next month.
More about the September temperatures and sunshine.
The average day light hours per day in California in September are 12.4 and there are 9.1 hours of sunshine per day on average during September, making it generally sunny and pleasant with long bright days.
More about September sunshine.
Probably not, September is a little too cold to enjoy swimming in California for any length of time with the sea water at 19°C (66°F).
More about September sea temperatures.
Yes, California is warm in September.
The average maximum temperature in California in September is 24°C (76°F). The average maximum temperature is 24°C (75°) in the previous month and 23°C (73°F) in the next month.
The average temperature in California in September is 19°C (67°F). The average temperature ranges is 20°C (67°F) in the previous month and 17°C (63°F) in the next month.
More info about the September temperatures and sunshine.
The average maximum temperature in California in September is 24°C (76°F). The average maximum temperature is 24°C (75°F) in the previous month and 23°C (73°F) in the next month.
The average temperature in California in September is 19°C (67°F). The average temperature ranges is 20°C (67°F) in the previous month and 17°C (63°F) in the next month.
The average minimum temperature in California in September is 14°C (58°F). The minimum temperature is 15°C (59°F) in the previous month and 12°C (54°F) in the next month.
The average day light hours per day in California in September are 12.4 and there are 9.1 hours of sunshine per day on average during September making it generally sunny and pleasant with long bright days
The ultraviolet index in California in September is typically 8.4 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.
The average sea water temperature in California in September is 19.1°C (66.4°F) which is comfortable for swimming though some may prefer warmer water.
The average total rainfall in California in September is 1cm (0.4inches) and on average there are 1.8 rainy days in September making it an extremely dry time to visit the beach.
The maximum dew point (an indicator of humidity) in California in September is 15°C (59°F) which is comfortable for everyone. The dew point is 15°C (59°F) in the previous month and 13°C (13°F) in the next month.
The average maximum relative humidity in California in September is typically 88.9%. The maximum relative humidity is 89.7% in the previous month and 87.4% in the next month.
The average relative humidity in California in September is typically 72.1%. The average relative humidity is 74.3% in the previous month and 69.4% in the next month.
The average maximum wind speed in California in September is typically 23KM/H (15MPH). The average maximum wind speed is 24KM/H (15MPH) in the previous month and 23KM/H (14MPH) in the next month.
The average wind speed in California in September is typically 9KM/H (5MPH). The average wind speed is 9KM/H (6MPH) in the previous month and 8KM/H (5MPH) in the next month.
The average wind direction in California in September is from the West.
