December weather forecastIsla, Mexico
December
Weather in December
December, the first month of the winter in Isla, is still a warm month, with an average temperature ranging between min 18.4°C (65.1°F) and max 26°C (78.8°F).Temperature
The transition into December shows a subtle variation to a still warm 26°C (78.8°F) from November's 26.7°C (80.1°F) in the average high-temperature. Throughout December, Isla witnesses a nighttime temperature average of 18.4°C (65.1°F).Humidity
The months with the highest humidity are September through December, with an average relative humidity of 84%.Rainfall
In December, in Isla, the rain falls for 10.9 days. Throughout December, 21mm (0.83") of precipitation is accumulated. Throughout the year, there are 208.1 rainfall days, and 905mm (35.63") of precipitation is accumulated.Daylight
The month with the shortest days in Isla, Mexico, is December, with an average of 11h and 6min of daylight.On the first day of December in Isla, sunrise is at 6:37 am and sunset at 5:45 pm. On the last day of the month, sunrise is at 6:53 am and sunset at 5:57 pm CST.
Sunshine
December has the least sunshine of the year in Isla, with an average of 5.4h of sunshine.UV index
In Isla, the average daily maximum UV index in December is 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the average person.Note: The maximum daily UV index of 6 in December interprets into the following recommendations:
Shun overexposure. Protection from sun ravages is indispensable. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. 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
Isla, Mexico
- Average high temperature in December: 26°C
The warmest month (with the highest average high temperature) is May (36°C).
The month with the lowest average high temperature is January (25°C).
- Average low temperature in December: 18.4°C
The month with the highest average low temperature is May (24.2°C).
The coldest month (with the lowest average low temperature) is January (17.1°C).
Average pressure in December
Isla, Mexico
- Average pressure in December: 1017.2mbar
The month with the highest atmospheric pressure is January (1018.6mbar).
The month with the lowest atmospheric pressure is May (1012.2mbar).
Average wind speed in December
Isla, Mexico
- Average wind speed in December: 8.3km/h
The windiest month (with the highest average wind speed) is April (9.1km/h).
The calmest month (with the lowest average wind speed) is September (6.8km/h).
Average humidity in December
Isla, Mexico
- Average humidity in December: 84%
The months with the highest relative humidity are September, October, November and December (84%).
The month with the lowest relative humidity is May (64%).
Average rainfall in December
Isla, Mexico
- Average rainfall in December: 21mm
The wettest month (with the highest rainfall) is September (156mm).
The driest month (with the least rainfall) is March (18mm).
Average rainfall days in December
Isla, Mexico
- Average rainfall days in December: 10.9 days
The month with the highest number of rainy days is September (27.2 days).
The month with the least rainy days is February (9.9 days).
Average daylight in December /
Average sunshine in December
Isla, Mexico
- Average daylight in December: 11h and 6min
The month with the longest days is June (Average daylight: 13h and 12min).
The month with the shortest days is December (Average daylight: 11h and 6min).
- Average sunshine in December: 5h and 24min
The month with the most sunshine is May (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in December
Isla, Mexico
- Average sunshine days in December: 18.2 days
The month with the most sunshine days is December (18.2 days).
The month with the least sunshine days is September (2.2 days).
Average UV index in December
Isla, Mexico
- Average UV index in December: 6
The months with the highest UV index are March, April, May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 5).
Average cloud cover in December
Isla, Mexico
- Average cloud cover in December: 47
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is April (Cloud cover 24).
Average visibility in December
Isla, Mexico
- Average visibility in December: 8km
The months with the highest visibility are April and May (10km).
The months with the lowest visibility are January, February, July, August, September, October, November and December (8km).





