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11°
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12°
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16°
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15°
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September is warm, and sunny but overcast at times with long bright days. September is extremely dry with only very rare light showers and very few days with any rain at all. It is a good time for sunbathing in Mendocino County. September is too cold for swimming in Mendocino County for any length of time, unless you have a wetsuit. Consider visiting Mendocino County in the months of May, June, July, August, for the best beach weather.
Also consider one of our other suggestions for September.
Yes, September is a good time for sunbathing in Mendocino County. 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 Mendocino County in September is 23°C (74°F).
More about September temperature and sunshine.
No, September is too cold for swimming in Mendocino County for any length of time, with the sea water at 15°C (60°F), unless you have a wetsuit.
More about September sea temperatures.
Yes, September is a good time for a holiday in Mendocino County.
September is warm and sunny but overcast at times 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 Mendocino County in September is 23°C (74°F).
More about the September temperatures and sunshine.
The average minimum temperature in Mendocino County in September is 10°C (50°F). The minimum temperature is 12°C (54°F) in the previous month and 7°C (45°F) in the next month.
More about the September temperatures and sunshine.
The average day light hours per day in Mendocino County in September are 12.5 and there are 8.2 hours of sunshine per day on average during September, making it sunny but overcast at times with long bright days.
More about September sunshine.
No, September is too cold for swimming in Mendocino County for any length of time, with the sea water at 15°C (60°F), unless you have a wetsuit.
More about September sea temperatures.
Yes, Mendocino County is warm in September.
The average maximum temperature in Mendocino County in September is 23°C (74°F). The average maximum temperature is 26°C (78°) in the previous month and 22°C (71°F) in the next month.
The average temperature in Mendocino County in September is 19°C (66°F). The average temperature ranges is 21°C (70°F) in the previous month and 16°C (61°F) in the next month.
More info about the September temperatures and sunshine.
The average maximum temperature in Mendocino County in September is 23°C (74°F). The average maximum temperature is 26°C (78°F) in the previous month and 22°C (71°F) in the next month.
The average temperature in Mendocino County in September is 19°C (66°F). The average temperature ranges is 21°C (70°F) in the previous month and 16°C (61°F) in the next month.
The average minimum temperature in Mendocino County in September is 10°C (50°F). The minimum temperature is 12°C (54°F) in the previous month and 7°C (45°F) in the next month.
The average day light hours per day in Mendocino County in September are 12.5 and there are 8.2 hours of sunshine per day on average during September making it sunny but overcast at times with long bright days
The ultraviolet index in Mendocino County in September is typically 7.5 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 Mendocino County in September is 15.3°C (59.5°F) which is cold for swimming, a full wet suit is required to spend any length of time in the sea.
The average total rainfall in Mendocino County in September is 4.5cm (1.8inches) and on average there are 1.9 rainy days in September making it an extremely dry time to visit the beach.
The maximum dew point (an indicator of humidity) in Mendocino County in September is 10°C (51°F) which is very comfortable. The dew point is 12°C (54°F) in the previous month and 9°C (9°F) in the next month.
The average maximum relative humidity in Mendocino County in September is typically 84.2%. The maximum relative humidity is 82.7% in the previous month and 90.6% in the next month.
The average relative humidity in Mendocino County in September is typically 53.5%. The average relative humidity is 52.5% in the previous month and 62.7% in the next month.
The average maximum wind speed in Mendocino County in September is typically 20KM/H (12MPH). The average maximum wind speed is 20KM/H (13MPH) in the previous month and 16KM/H (10MPH) in the next month.
The average wind speed in Mendocino County in September is typically 5KM/H (3MPH). The average wind speed is 6KM/H (4MPH) in the previous month and 4KM/H (2MPH) in the next month.
The average wind direction in Mendocino County in September is from the North.
