Weather in December
The perfect water temperature of 27°C (80.6°F) and 1mm (0.04") of accumulated rainfall makes December a great period for swimming and other water activities.
Temperature
January, February, November and December, with an average high-temperature of 33°C (91.4°F), are marked as the coldest months in Huatulco.Rainfall
February through April and December are months with the least rain in Huatulco when 1mm (0.04") of rain is typically aggregated.Sea temperature
January, February and December, with an average sea temperature of 27°C (80.6°F), are months with the coldest seawater.Note: Water temperature from 25°C (77°F) to 29°C (84.2°F) is considered very warm, making water activities enjoyable for prolonged periods without any uncomfortable sensations.
Daylight
December has the shortest days of the year in Huatulco, Mexico, with an average of 11h and 12min of daylight.On the first day of December in Huatulco, sunrise is at 6:37 am and sunset at 5:52 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 6:04 pm CST.
Sunshine
The average sunshine in December in Huatulco is 8h.UV index
The month with the lowest UV index is December, with an average maximum UV index of 8. A UV Index estimate of 8 to 10 represents a very high threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 8 during December leads to these advisories:
Ensure you act responsibly. Without precautions, skin and eyes can suffer. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Be mindful! Sand and water reflections can up the Sun's UV exposure.
Frequently asked questions
What are the coldest months in Huatulco?
How hot is it in Huatulco in December?
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What months are the sea coldest in Huatulco?
What is the water temperature in December in Huatulco?
What is the month with the shortest days in Huatulco?
How many hours of daylight does Huatulco have in December?
When is the sunrise / sunset in December in Huatulco?
How long on average sun shines in December in Huatulco?
When is the lowest UV index in Huatulco?
What is the UV index reading in December in Huatulco?
Average temperature in December
Huatulco, Mexico
- Average high temperature in December: 33°C
The warmest months (with the highest average high temperature) are April, May and August (35°C).
The months with the lowest average high temperature are January, February, November and December (33°C).
- Average low temperature in December: 19°C
The months with the highest average low temperature are May and June (23°C).
The coldest months (with the lowest average low temperature) are January, February and December (19°C).
Average rainfall in December
Huatulco, Mexico
- Average rainfall in December: 1mm
The wettest month (with the highest rainfall) is June (176mm).
The driest months (with the least rainfall) are February, March, April and December (1mm).
Average rainfall days in December
Huatulco, Mexico
- Average rainfall days in December: 0 days
The months with the highest number of rainy days are June and September (7 days).
The months with the least rainy days are January, February, March, April, November and December (0 days).
Average sea temperature in December
Huatulco, Mexico
- Average sea temperature in December: 27°C
The best months for swimming (with the highest average sea temperature) are June, July and August (30°C).
The coldest months (with the lowest average sea temperature) are January, February and December (27°C).
Average daylight in December /
Average sunshine in December
Huatulco, 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 12min).
- Average sunshine in December: 8h
The months with the most sunshine are February and March (Average sunshine: 9h).
The month with the least sunshine is September (Average sunshine: 5h).
Average UV index in December
Huatulco, Mexico
- Average UV index in December: 8
The months with the highest UV index are March, April, May, June, July, August and September (UV index 12).
The month with the lowest UV index is December (UV index 8).
Huatulco, Mexico
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