December weather forecastTonalá, Mexico
December
Weather in December
The first month of the winter, December, is also a moderately hot month in Tonalá, Mexico, with an average temperature fluctuating between 23.5°C (74.3°F) and 9.9°C (49.8°F).Temperature
In Tonalá, December is the month with the lowest recorded average temperatures, measuring a high of 23.5°C (74.3°F) and a low of 9.9°C (49.8°F).Humidity
In December, the average relative humidity is 57%.Rainfall
In Tonalá, in December, during 3.9 rainfall days, 6mm (0.24") of precipitation is typically accumulated. In Tonalá, during the entire year, the rain falls for 154.5 days and collects up to 719mm (28.31") of precipitation.Daylight
With an average of 10h and 54min of daylight, December has the shortest days of the year in Tonalá.On the first day of the month, sunrise is at 7:13 am and sunset at 6:11 pm. On the last day of December, in Tonalá, sunrise is at 7:29 am and sunset at 6:23 pm CST.
Sunshine
In December, the average sunshine is 9.8h.UV index
The average daily maximum UV index in December in Tonalá is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: An average UV index of 5 in December transforms into this advice:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Tonalá, Mexico
- Average high temperature in December: 23.5°C
The warmest month (with the highest average high temperature) is May (32.4°C).
The month with the lowest average high temperature is December (23.5°C).
- Average low temperature in December: 9.9°C
The month with the highest average low temperature is June (17.9°C).
The coldest month (with the lowest average low temperature) is January (9.2°C).
Average pressure in December
Tonalá, Mexico
- Average pressure in December: 1016.3mbar
The month with the highest atmospheric pressure is January (1016.7mbar).
The month with the lowest atmospheric pressure is May (1012.6mbar).
Average wind speed in December
Tonalá, Mexico
- Average wind speed in December: 5.2km/h
The windiest month (with the highest average wind speed) is April (7.8km/h).
The calmest month (with the lowest average wind speed) is July (4.6km/h).
Average humidity in December
Tonalá, Mexico
- Average humidity in December: 57%
The month with the highest relative humidity is September (82%).
The month with the lowest relative humidity is April (36%).
Average rainfall in December
Tonalá, Mexico
- Average rainfall in December: 6mm
The wettest month (with the highest rainfall) is July (187mm).
The driest month (with the least rainfall) is April (2mm).
Average rainfall days in December
Tonalá, Mexico
- Average rainfall days in December: 3.9 days
The month with the highest number of rainy days is July (29.3 days).
The month with the least rainy days is April (2.2 days).
Average daylight in December /
Average sunshine in December
Tonalá, Mexico
- Average daylight in December: 10h and 54min
The month with the longest days is June (Average daylight: 13h and 24min).
The month with the shortest days is December (Average daylight: 10h and 54min).
- Average sunshine in December: 9h and 48min
The month with the most sunshine is May (Average sunshine: 9h and 54min).
The month with the least sunshine is July (Average sunshine: 8h and 42min).
Average sunshine days in December
Tonalá, Mexico
- Average sunshine days in December: 26.5 days
The month with the most sunshine days is January (27.3 days).
The month with the least sunshine days is July (0.7 days).
Average UV index in December
Tonalá, Mexico
- Average UV index in December: 5
The month with the highest UV index is May (UV index 7).
The month with the lowest UV index is January (UV index 4).
Average cloud cover in December
Tonalá, Mexico
- Average cloud cover in December: 12
The month with the most cloud cover is July (Cloud cover 43).
The months with the least cloud cover are March and April (Cloud cover 9).
Average visibility in December
Tonalá, Mexico
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, November and December (10km).
The months with the lowest visibility are July, August and September (8km).





