December weather forecast
San Mateo Peñasco, Mexico

December

Weather in December

December, the first month of the winter in San Mateo Peñasco, is also an agreeable month, with an average temperature ranging between max 21.5°C (70.7°F) and min 9.4°C (48.9°F).

Temperature

As November transitions into December, the average high-temperature rests at a still pleasant 21.5°C (70.7°F), maintaining temperature consistency with November. Despite a significant deviation from daily highs, December sees an average nighttime temperature of 9.4°C (48.9°F).

Humidity

The average relative humidity in December in San Mateo Peñasco is 69%.

Rainfall

The month with the least rainfall is December, when the rain falls for 4.5 days and typically collects 3mm (0.12") of precipitation.

Daylight

With an average of 11h and 6min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 6:44 am and sunset at 5:54 pm. On the last day of December, sunrise is at 6:59 am and sunset at 6:07 pm CST.

Sunshine

In San Mateo Peñasco, the average sunshine in December is 8.5h.

UV index

The months with the lowest UV index are January, June, October through December, with an average maximum UV index of 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In December, the maximum UV index of 4 transforms into these recommendations:
Take necessary precautions - Defending against sun damage is advocated. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.

Frequently asked questions

What are December temperatures in San Mateo Peñasco?
During December, San Mateo Peñasco experiences an average high-temperature of 21.5°C (70.7°F) and a low-temperature of 9.4°C (48.9°F). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in April is appraised at 28°C (82.4°F).
What is the average humidity in December in San Mateo Peñasco?
In December, the average relative humidity in San Mateo Peñasco, Mexico, is 69%.
What is the driest month in San Mateo Peñasco?
December is the month with the least rainfall in San Mateo Peñasco, Mexico. Rain falls for 4.5 days and accumulates 3mm (0.12") of precipitation.
How much does it rain in San Mateo Peñasco in December?
In San Mateo Peñasco, Mexico, in December, during 4.5 rainfall days, 3mm (0.12") of precipitation is typically accumulated.
What is the month with the shortest days in San Mateo Peñasco?
With an average of 11h and 6min of daylight, December has the shortest days of the year in San Mateo Peñasco.
How many hours of daylight does San Mateo Peñasco have in December?
The average day length in December in San Mateo Peñasco is 11h and 8min.
When is the sunrise / sunset in December in San Mateo Peñasco?
In December, on the first day of the month, sunrise is at 6:44 am and sunset at 5:54 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 6:07 pm CST.
How long on average sun shines in December in San Mateo Peñasco?
In San Mateo Peñasco, the average sunshine duration in December is 8.5h.
What is the month with the lowest UV index in San Mateo Peñasco?
The months with the lowest UV index in San Mateo Peñasco are January, June, October through December, with an average maximum UV index of 4.
What is the UV index intensity in December in San Mateo Peñasco?
The average daily maximum UV index in December in San Mateo Peñasco is 4. A UV Index of 3 to 5 symbolizes a medium health risk from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December - San Mateo Peñasco, Mexico
Average temperature in December
San Mateo Peñasco, Mexico
  • Average high temperature in December: 21.5°C

The warmest month (with the highest average high temperature) is April (27.3°C).
The month with the lowest average high temperature is January (21.1°C).

  • Average low temperature in December: 9.4°C

The month with the highest average low temperature is May (14.5°C).
The coldest month (with the lowest average low temperature) is January (8.8°C).

Average pressure in December - San Mateo Peñasco, Mexico
Average pressure in December
San Mateo Peñasco, Mexico
  • Average pressure in December: 1017.1mbar

The month with the highest atmospheric pressure is January (1017.7mbar).
The month with the lowest atmospheric pressure is May (1013.8mbar).

Average wind speed in December - San Mateo Peñasco, Mexico
Average wind speed in December
San Mateo Peñasco, Mexico
  • Average wind speed in December: 7.8km/h

The windiest month (with the highest average wind speed) is January (8.7km/h).
The calmest months (with the lowest average wind speed) are June and September (6.7km/h).

Average humidity in December - San Mateo Peñasco, Mexico
Average humidity in December
San Mateo Peñasco, Mexico
  • Average humidity in December: 69%

The month with the highest relative humidity is September (81%).
The month with the lowest relative humidity is April (56%).

Average rainfall in December - San Mateo Peñasco, Mexico
Average rainfall in December
San Mateo Peñasco, Mexico
  • Average rainfall in December: 3mm

The wettest month (with the highest rainfall) is June (164mm).
The driest month (with the least rainfall) is December (3mm).

Average rainfall days in December - San Mateo Peñasco, Mexico
Average rainfall days in December
San Mateo Peñasco, Mexico
  • Average rainfall days in December: 4.5 days

The month with the highest number of rainy days is September (26.6 days).
The month with the least rainy days is December (4.5 days).

Average daylight in December / Average sunshine in December - San Mateo Peñasco, Mexico
Average daylight in December /
Average sunshine in December
San Mateo Peñasco, Mexico
  • Average daylight in December: 11h and 1min

The month with the longest days is June (Average daylight: 13h and 6min).
The month with the shortest days is December (Average daylight: 11h and 6min).

  • Average sunshine in December: 8h and 3min

The month with the most sunshine is May (Average sunshine: 10h and 48min).
The month with the least sunshine is November (Average sunshine: 7h and 36min).

Average sunshine days in December - San Mateo Peñasco, Mexico
Average sunshine days in December
San Mateo Peñasco, Mexico
  • Average sunshine days in December: 22.2 days

The month with the most sunshine days is December (22.2 days).
The months with the least sunshine days are August and September (2 days).

Average UV index in December - San Mateo Peñasco, Mexico
Average UV index in December
San Mateo Peñasco, Mexico
  • Average UV index in December: 4

The month with the highest UV index is April (UV index 6).
The months with the lowest UV index are January, June, October, November and December (UV index 4).

Average cloud cover in December - San Mateo Peñasco, Mexico
Average cloud cover in December
San Mateo Peñasco, Mexico
  • Average cloud cover in December: 18

The month with the most cloud cover is September (Cloud cover 42).
The months with the least cloud cover are February, March and April (Cloud cover 15).

Average visibility in December - San Mateo Peñasco, Mexico
Average visibility in December
San Mateo Peñasco, Mexico
  • Average visibility in December: 10km

The months with the highest visibility are January, February, March, April, May, November and December (10km).
The month with the lowest visibility is September (8km).

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