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15°
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15°
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17°
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December is slightly cool, and quite sunny but with occasional periods of cloudy and overcast skies. December is quite dry but with occasional showers, though there are many days without rain. It is not a good time for sunbathing in San Luis Obispo County. December is too cold for swimming in San Luis Obispo County for any length of time, unless you have a wetsuit. Consider visiting San Luis Obispo County in the months of June, July, August, September, for the best beach weather.
Also consider one of our other suggestions for December.
No, December is not a good time for sunbathing in San Luis Obispo County. December is slightly too cold, with quite a high chance of cloudy skies and there is quite a high chance of rain showers.
The average maximum temperature in San Luis Obispo County in December is 17°C (63°F).
More about December temperature and sunshine.
No, December is too cold for swimming in San Luis Obispo County for any length of time, with the sea water at 15°C (58°F), unless you have a wetsuit.
More about December sea temperatures.
Yes, December is a slightly cool time for visiting San Luis Obispo County.
December is slightly cool and quite sunny but with occasional periods of cloudy and overcast skies. It is quite dry but with occasional showers, though there are many days without rain.
It's a bit chilly for sunbathing and swimming but you can still enjoy the beach scenery with walks along the beach and other activities.
The average maximum temperature in San Luis Obispo County in December is 17°C (63°F).
More about the December temperatures and sunshine.
The average minimum temperature in San Luis Obispo County in December is 4°C (39°F). The minimum temperature is 6°C (43°F) in the previous month and 4°C (39°F) in the next month.
More about the December temperatures and sunshine.
The average day light hours per day in San Luis Obispo County in December are 9.8 and there are 5.9 hours of sunshine per day on average during December, making it quite sunny but with occasional periods of cloudy and overcast skies.
More about December sunshine.
No, December is too cold for swimming in San Luis Obispo County for any length of time, with the sea water at 15°C (58°F), unless you have a wetsuit.
More about December sea temperatures.
Yes, December is a slightly cool time for a holiday in San Luis Obispo County.
December is slightly cool and quite sunny but with occasional periods of cloudy and overcast skies. It is quite dry but with occasional showers, though there are many days without rain.
It's a bit chilly for sunbathing and swimming but you can still enjoy the beach scenery with walks along the beach and other activities.
The average maximum temperature in San Luis Obispo County in December is 17°C (63°F).
More about the December temperatures and sunshine.
Yes, San Luis Obispo County is slightly cool but still worth visiting in December.
December is slightly cool and quite sunny but with occasional periods of cloudy and overcast skies. It is quite dry but with occasional showers, though there are many days without rain.
It's a bit chilly for sunbathing and swimming but you can still enjoy the beach scenery with walks along the beach and other activities.
The average maximum temperature in San Luis Obispo County in December is 17°C (63°F).
More about the December temperatures and sunshine.
No, San Luis Obispo County is slightly cool in December.
The average maximum temperature in San Luis Obispo County in December is 17°C (63°F). The average maximum temperature is 21°C (70°) in the previous month and 18°C (64°F) in the next month.
The average temperature in San Luis Obispo County in December is 11°C (51°F). The average temperature ranges is 14°C (57°F) in the previous month and 11°C (52°F) in the next month.
More info about the December temperatures and sunshine.
The average maximum temperature in San Luis Obispo County in December is 17°C (63°F). The average maximum temperature is 21°C (70°F) in the previous month and 18°C (64°F) in the next month.
The average temperature in San Luis Obispo County in December is 11°C (51°F). The average temperature ranges is 14°C (57°F) in the previous month and 11°C (52°F) in the next month.
The average minimum temperature in San Luis Obispo County in December is 4°C (39°F). The minimum temperature is 6°C (43°F) in the previous month and 4°C (39°F) in the next month.
The average day light hours per day in San Luis Obispo County in December are 9.8 and there are 5.9 hours of sunshine per day on average during December making it quite sunny but with occasional periods of cloudy and overcast skies
The ultraviolet index in San Luis Obispo County in December is typically 2.8 during December. An ultraviolet index reading of 0 to 2 indicates low danger from the sun's UV rays for the average person. Most people will be able to spend several hours in the sun with out a problem, however unprotected skin risks burning in less than 1 hour. Wear sunglasses on bright days. Only those that burn easily will need to apply sunscreen. Watch out for relections from water that may increase ultraviolet exposure.
The average sea water temperature in San Luis Obispo County in December is 14.7°C (58.5°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 San Luis Obispo County in December is 8cm (3.1inches) and on average there are 10.1 rainy days in December making it a pretty wet time to visit the beach.
The maximum dew point (an indicator of humidity) in San Luis Obispo County in December is 7°C (45°F) which is a bit dry for some. The dew point is 9°C (47°F) in the previous month and 7°C (7°F) in the next month.
The average maximum relative humidity in San Luis Obispo County in December is typically 89.6%. The maximum relative humidity is 88.8% in the previous month and 88.9% in the next month.
The average relative humidity in San Luis Obispo County in December is typically 70.5%. The average relative humidity is 66.7% in the previous month and 68.9% in the next month.
The average maximum wind speed in San Luis Obispo County in December is typically 23KM/H (14MPH). The average maximum wind speed is 23KM/H (14MPH) in the previous month and 23KM/H (14MPH) in the next month.
The average wind speed in San Luis Obispo County in December is typically 7KM/H (4MPH). The average wind speed is 7KM/H (4MPH) in the previous month and 7KM/H (4MPH) in the next month.
The average wind direction in San Luis Obispo County in December is from the West.
