How sunny is it in San Francisco in December? There are normally 5 hours of bright sunshine each day in San Francisco in December - that's 53% of daylight hours. How warm is the sea around San Francisco in December? The average sea temperature around San Francisco in December is 12°C. Does it rain in San Francisco in December? There are usually 10 days with some rain in San Francisco in December and the average monthly rainfall is 97mm. Metric (°C / mm) | Imperial (°F / inches) Back to top San Francisco sunrise & sunset times for December 2021 Browse the sunrise and sunset times for San Francisco in December 2021. Select a month to view San Francisco sunrise & sunset times for the next 12 months. Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Be inspired Get your weekly fix of holiday inspiration from some of the world's best travel writers plus save on your next trip with the latest exclusive offers We promise not to share your details Related posts Popular travel offers Top ^ *affiliate links: find out how we are funded and why this helps us remain free to use.
6h). Average sunshine in December: 5. 8h The month with the most sunshine is July (Average sunshine: 11. 8h). The month with the least sunshine is December (Average sunshine: 5. [Resources] Average sunshine days in December San Francisco, CA Average sunshine days in December: 22 days The month with the most sunshine days is October (25. 8 days). The month with the least sunshine days is March (20. [Resources] Average UV index in December San Francisco, CA Average UV index in December: 3 Months with the highest UV index are April, June, July, August and September (UV index 5). Months with the lowest UV index are January, February, November and December (UV index 3). [Resources] Average cloud cover in December San Francisco, CA Average cloud cover in December: 35 The month with the most cloud cover is March (Cloud cover 36). Months with the least cloud cover are July and September (Cloud cover 14). [Resources] Average visibility in December San Francisco, CA Average visibility in December: 6mi Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Get the latest coronavirus (Covid-19) updates for California with current travel advice and statistics on new cases per 100, 000 and vaccine. 14 14°C max day temperature 5 hours of sunshine per day 10 10 days with some rainfall 7 7°C min night temperature 10 10 hours of daylight per day 0 No heat & humidity 97 97 mm of monthly rainfall 2 2 (Low) UV index 12 12°C sea temperature Recommended for California Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec The December weather guide for San Francisco, California shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources. Save 20% on COVID-19 Fit to Fly test & travel certificate Home COVID-19 PCR test with free express delivery Receive online results within 24-72 hours once test at lab Expires at 23:59 on Friday 31st Dec 2021 How warm is it in San Francisco in December? Daytime temperatures usually reach 14°C in San Francisco in December, falling to 7°C at night.
6h of daylight. How many hours of daylight does San Francisco have in December? In December, the average length of the day in San Francisco, California, is 9. 6h. What is the month with the least sunshine in San Francisco? December has the least sunshine of the year in San Francisco, with an average of 5. How long on average sun shines in December in San Francisco? In San Francisco, California, the average sunshine in December is 5. 8h. What are the months with the lowest UV index in San Francisco? Months with the lowest UV index in San Francisco are January, February, November and December, with an average maximum UV index of 3. How high is the UV index in December in San Francisco? In December, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a moderate health threat from unsafe exposure to the Sun's UV rays. Average temperature in December San Francisco, CA Average high temperature in December: 55. 8°F The warmest month (with the highest average high temperature) is September (73.