December weather forecastGuaymas, Mexico
December
Weather in December
The first month of the winter, December, is still a pleasant month in Guaymas, Mexico, with temperature in the range of an average low of 15.9°C (60.6°F) and an average high of 22.5°C (72.5°F).Temperature
The start of December involves a subtle temperature drop, shifting from a warm 26.5°C (79.7°F) in November to an agreeable 22.5°C (72.5°F). Guaymas reports an average nighttime low-temperature of 15.9°C (60.6°F) in December.Humidity
In Guaymas, the average relative humidity in December is 50%.Rainfall
In Guaymas, Mexico, during December, the rain falls for 2.2 days and regularly aggregates up to 3mm (0.12") of precipitation. Throughout the year, there are 56 rainfall days, and 164mm (6.46") of precipitation is accumulated.Sea temperature
In Guaymas, the average seawater temperature in December is 19.1°C (66.4°F).Note: For most, swimming in 19.1°C (66.4°F) is not a pleasant activity. Breathing becomes increasingly challenging as water temperature descends from 21°C (69.8°F) to 15°C (59°F).
Daylight
The month with the shortest days in Guaymas is December, with an average of 10h and 24min of daylight.On the first day of the month, sunrise is at 6:58 am and sunset at 5:27 pm. On the last day of December, in Guaymas, sunrise is at 7:14 am and sunset at 5:39 pm MST.
Sunshine
With an average of 6.9h of sunshine, December has the least sunshine of the year.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the average person.Note: The daily high UV index of 5 in December translates into this advice:
Guard yourself - Precautionary measures against sun damage are advocated. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Guaymas, Mexico
- Average high temperature in December: 22.5°C
The warmest month (with the highest average high temperature) is August (33.9°C).
The month with the lowest average high temperature is January (22.3°C).
- Average low temperature in December: 15.9°C
The month with the highest average low temperature is August (29.1°C).
The coldest month (with the lowest average low temperature) is January (15.1°C).
Average pressure in December
Guaymas, Mexico
- Average pressure in December: 1015.6mbar
The month with the highest atmospheric pressure is January (1016.3mbar).
The month with the lowest atmospheric pressure is June (1008.8mbar).
Average wind speed in December
Guaymas, Mexico
- Average wind speed in December: 12.8km/h
The windiest months (with the highest average wind speed) are June and July (14km/h).
The calmest month (with the lowest average wind speed) is October (11.6km/h).
Average humidity in December
Guaymas, Mexico
- Average humidity in December: 50%
The month with the highest relative humidity is August (62%).
The month with the lowest relative humidity is May (43%).
Average rainfall in December
Guaymas, Mexico
- Average rainfall in December: 3mm
The wettest month (with the highest rainfall) is September (46mm).
The driest month (with the least rainfall) is May (0mm).
Average rainfall days in December
Guaymas, Mexico
- Average rainfall days in December: 2.2 days
The month with the highest number of rainy days is July (14.8 days).
The months with the least rainy days are April and May (0.6 days).
Average sea temperature in December
Guaymas, Mexico
- Average sea temperature in December: 19.1°C
The best month for swimming (with the highest average sea temperature) is August (31°C).
The coldest month (with the lowest average sea temperature) is February (17.2°C).
Average daylight in December /
Average sunshine in December
Guaymas, Mexico
- Average daylight in December: 10h and 24min
The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).
- Average sunshine in December: 6h and 54min
The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 54min).
Average sunshine days in December
Guaymas, Mexico
- Average sunshine days in December: 28.7 days
The month with the most sunshine days is May (30.4 days).
The month with the least sunshine days is July (12.1 days).
Average UV index in December
Guaymas, Mexico
- Average UV index in December: 5
The months with the highest UV index are June, July, August and September (UV index 8).
The months with the lowest UV index are January, February, November and December (UV index 5).
Average cloud cover in December
Guaymas, Mexico
- Average cloud cover in December: 14
The month with the most cloud cover is July (Cloud cover 20).
The month with the least cloud cover is May (Cloud cover 5).
Average visibility in December
Guaymas, Mexico
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
