December weather forecastBoca del Río, Mexico
December
Weather in December
December, the first month of the winter in Boca del Río, is still a warm month, with an average temperature fluctuating between 20.5°C (68.9°F) and 24.9°C (76.8°F).Temperature
Boca del Río, Mexico, starts December with an average high-temperature of a still moderately hot 24.9°C (76.8°F), hinting at a minimal fluctuation from November. In Boca del Río, the nightly December temperatures experience a slight descent from daily highs to an average low of 20.5°C (68.9°F).Humidity
The months with the highest humidity are February and December, with an average relative humidity of 79%.Rainfall
In Boca del Río, Mexico, during December, the rain falls for 8.4 days and regularly aggregates up to 17mm (0.67") of precipitation. Throughout the year, in Boca del Río, Mexico, there are 162.2 rainfall days, and 759mm (29.88") of precipitation is accumulated.Sea temperature
In Boca del Río, the average seawater temperature in December is 24.1°C (75.4°F).Note: If you're wary of the cold, the surrounding conditions—sunshine, wind, and air temperature become crucial when swimming in 24.1°C (75.4°F) waters. Olympic standards, for reference, are set between 25°C (77°F) and 28°C (82.4°F).
Daylight
With an average of 11h and 0min of daylight, December has the shortest days of the year in Boca del Río.On the first day of the month, sunrise is at 6:41 am and sunset at 5:45 pm. On the last day of December, in Boca del Río, sunrise is at 6:57 am and sunset at 5:57 pm CST.
Sunshine
In Boca del Río, the average sunshine in December is 6.6h.UV index
The average daily maximum UV index in December in Boca del Río is 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the ordinary person.Note: During December, 6 as the daily maximum UV index converts into the following advice:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Caution! Sand and water surfaces escalate the UV intensity from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Boca del Río, Mexico
- Average high temperature in December: 24.9°C
The warmest months (with the highest average high temperature) are May and June (30.4°C).
The month with the lowest average high temperature is January (23.8°C).
- Average low temperature in December: 20.5°C
The month with the highest average low temperature is June (25.4°C).
The coldest month (with the lowest average low temperature) is January (19.3°C).
Average pressure in December
Boca del Río, Mexico
- Average pressure in December: 1017.4mbar
The month with the highest atmospheric pressure is January (1018.8mbar).
The month with the lowest atmospheric pressure is May (1012.3mbar).
Average wind speed in December
Boca del Río, Mexico
- Average wind speed in December: 15km/h
The windiest months (with the highest average wind speed) are January and November (16.1km/h).
The calmest month (with the lowest average wind speed) is July (9.2km/h).
Average humidity in December
Boca del Río, Mexico
- Average humidity in December: 79%
The months with the highest relative humidity are February and December (79%).
The months with the lowest relative humidity are April and May (74%).
Average rainfall in December
Boca del Río, Mexico
- Average rainfall in December: 17mm
The wettest month (with the highest rainfall) is September (171mm).
The driest month (with the least rainfall) is April (8mm).
Average rainfall days in December
Boca del Río, Mexico
- Average rainfall days in December: 8.4 days
The month with the highest number of rainy days is September (23.2 days).
The month with the least rainy days is April (5 days).
Average sea temperature in December
Boca del Río, Mexico
- Average sea temperature in December: 24.1°C
The best month for swimming (with the highest average sea temperature) is August (29.8°C).
The coldest month (with the lowest average sea temperature) is February (23°C).
Average daylight in December /
Average sunshine in December
Boca del Río, Mexico
- Average daylight in December: 11h and 0min
The month with the longest days is June (Average daylight: 13h and 18min).
The month with the shortest days is December (Average daylight: 11h and 0min).
- Average sunshine in December: 6h and 36min
The month with the most sunshine is May (Average sunshine: 11h and 24min).
The month with the least sunshine is November (Average sunshine: 6h and 24min).
Average sunshine days in December
Boca del Río, Mexico
- Average sunshine days in December: 21.2 days
The month with the most sunshine days is April (24.6 days).
The month with the least sunshine days is September (5.5 days).
Average UV index in December
Boca del Río, Mexico
- Average UV index in December: 6
The months with the highest UV index are March, April, May, June, July, August and September (UV index 7).
The month with the lowest UV index is January (UV index 5).
Average cloud cover in December
Boca del Río, Mexico
- Average cloud cover in December: 34
The month with the most cloud cover is January (Cloud cover 40).
The month with the least cloud cover is April (Cloud cover 19).
Average visibility in December
Boca del Río, 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).





