Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
As San Juan la Isla transitions from November to December, the average high-temperatures adjust to a still comfortable 17.6°C (63.7°F), nearly the same as the previous 17.8°C (64°F). A noteworthy thermal contrast characterizes San Juan la Isla's December nights, with temperatures averaging at a wintry 5.4°C (41.7°F).Humidity
In December, the average relative humidity in San Juan la Isla, Mexico, is 65%.Rainfall
December is the month with the least rainfall. Rain falls for 6.1 days and accumulates 8mm (0.31") of precipitation.Daylight
With an average of 11h and 0min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 6:55 am and sunset at 5:59 pm. On the last day of December, in San Juan la Isla, sunrise is at 7:11 am and sunset at 6:11 pm CST.
Sunshine
In December, the average sunshine is 9.3h.UV index
In San Juan la Isla, the average daily maximum UV index in December is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: In December, an average UV index of 4 transforms into the following instructions:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Frequently asked questions
What is the temperature in December in San Juan la Isla?
What is the average humidity in December in San Juan la Isla?
What is the driest month in San Juan la Isla?
How much does it rain in San Juan la Isla in December?
What is the month with the shortest days in San Juan la Isla?
What is the average length of the day in December in San Juan la Isla?
When is the sunrise / sunset in December in San Juan la Isla?
How many hours of sunshine does San Juan la Isla have in December?
What is the UV index intensity in December in San Juan la Isla?
Average temperature in December
San Juan la Isla, Mexico
- Average high temperature in December: 17.6°C
The warmest month (with the highest average high temperature) is April (22.8°C).
The month with the lowest average high temperature is January (17.2°C).
- Average low temperature in December: 5.4°C
The month with the highest average low temperature is May (10.8°C).
The coldest month (with the lowest average low temperature) is January (4.9°C).
Average pressure in December
San Juan la Isla, Mexico
- Average pressure in December: 1017.2mbar
The month with the highest atmospheric pressure is January (1017.7mbar).
The month with the lowest atmospheric pressure is May (1013.7mbar).
Average wind speed in December
San Juan la Isla, Mexico
- Average wind speed in December: 5.6km/h
The windiest months (with the highest average wind speed) are March and April (6.8km/h).
The calmest month (with the lowest average wind speed) is July (4.4km/h).
Average humidity in December
San Juan la Isla, Mexico
- Average humidity in December: 65%
The month with the highest relative humidity is September (86%).
The month with the lowest relative humidity is April (47%).
Average rainfall in December
San Juan la Isla, Mexico
- Average rainfall in December: 8mm
The wettest month (with the highest rainfall) is July (301mm).
The driest month (with the least rainfall) is December (8mm).
Average rainfall days in December
San Juan la Isla, Mexico
- Average rainfall days in December: 6.1 days
The month with the highest number of rainy days is August (30.8 days).
The month with the least rainy days is January (5.8 days).
Average daylight in December /
Average sunshine in December
San Juan la Isla, 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: 9h and 2min
The month with the most sunshine is March (Average sunshine: 9h and 42min).
The month with the least sunshine is November (Average sunshine: 8h and 6min).
Average sunshine days in December
San Juan la Isla, Mexico
- Average sunshine days in December: 21.6 days
The month with the most sunshine days is January (22.3 days).
The month with the least sunshine days is August (0.1 days).
Average UV index in December
San Juan la Isla, Mexico
- Average UV index in December: 4
The months with the highest UV index are March and April (UV index 5).
The months with the lowest UV index are September and October (UV index 3).
Average cloud cover in December
San Juan la Isla, Mexico
- Average cloud cover in December: 13
The month with the most cloud cover is September (Cloud cover 46).
The month with the least cloud cover is March (Cloud cover 12).
Average visibility in December
San Juan la Isla, Mexico
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May and December (10km).
The month with the lowest visibility is September (7km).
San Juan la Isla, Mexico
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