December weather forecastWatsonville, CA
December
Weather in December
The first month of the winter, December, is still a refreshing month in Watsonville, California, with an average temperature fluctuating between 43.7°F (6.5°C) and 57.9°F (14.4°C).Temperature
Watsonville's coldest month, December, generally records average temperatures ranging from a high of 57.9°F (14.4°C) to a low of 43.7°F (6.5°C).Humidity
In December, the average relative humidity in Watsonville, California, is 71%.Rainfall
The month with the most rainfall is December, when the rain falls for 9.6 days and typically aggregates up to 2.13" (54mm) of precipitation.Daylight
With an average of 9h and 42min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:02 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 5:00 pm PST.
Sunshine
The month with the least sunshine is December, with an average of 6h of sunshine.UV index
The months with the lowest UV index in Watsonville are February, November and December, with an average maximum UV index of 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum high UV index of 3 in December translates into the following recommendations:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Watsonville, CA
- Average high temperature in December: 57.9°F
The warmest month (with the highest average high temperature) is August (78.1°F).
The month with the lowest average high temperature is December (57.9°F).
- Average low temperature in December: 43.7°F
The month with the highest average low temperature is September (54.9°F).
The coldest month (with the lowest average low temperature) is February (43.3°F).
Average pressure in December
Watsonville, CA
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is September (29.92"Hg).
Average wind speed in December
Watsonville, CA
- Average wind speed in December: 5mph
The windiest months (with the highest average wind speed) are April and May (6mph).
The calmest months (with the lowest average wind speed) are January, August, September, October and November (4.7mph).
Average humidity in December
Watsonville, CA
- Average humidity in December: 71%
The month with the highest relative humidity is March (75%).
The months with the lowest relative humidity are September and October (65%).
Average rainfall in December
Watsonville, CA
- Average rainfall in December: 2.13"
The wettest month (with the highest rainfall) is December (2.13").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in December
Watsonville, CA
- Average rainfall days in December: 9.6 days
The month with the highest number of rainy days is March (12.6 days).
The month with the least rainy days is August (0.8 days).
Average daylight in December /
Average sunshine in December
Watsonville, CA
- Average daylight in December: 9h and 42min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in December: 6h
The months with the most sunshine are July and August (Average sunshine: 12h).
The month with the least sunshine is December (Average sunshine: 6h).
Average sunshine days in December
Watsonville, CA
- Average sunshine days in December: 20.4 days
The month with the most sunshine days is August (29.3 days).
The month with the least sunshine days is March (17.6 days).
Average UV index in December
Watsonville, CA
- Average UV index in December: 3
The months with the highest UV index are April, June, July, August and September (UV index 5).
The months with the lowest UV index are February, November and December (UV index 3).
Average cloud cover in December
Watsonville, CA
- Average cloud cover in December: 32
The month with the most cloud cover is March (Cloud cover 34).
The month with the least cloud cover is July (Cloud cover 9).
Average visibility in December
Watsonville, CA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
